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... For a rapid, specific and sensitive identification of cows', ewes' and goats' milk in mono-species Sicilian dairy products, species-specific duplex-PCR protocol was applied. DNA samples from blood and experimental cheeses of Sicilian autochthonous breeds were extracted to amplify the 12S rRNA (and part of 16S rRNA in case of Ovis aries) mitochondrial species-specific gene fragment. The use of spec ...
... In this work, we tested a NMR‐based MVA method to assess the authenticity of EVOOs cultivar (from specific origin) declaration by using a total of over a 100 samples coming from different selected areas of Southern Italian Regions (Apulia and Calabria). We built a reference model, by performing unsupervised PCA and supervised PLS‐DA, OPLS‐DA analyses on the ¹HNMR spectra of a 40 monovarietal EVOOs ...
... Considering the recent cases of meat adulteration and fraud, efficient and accurate analytical methods are needed for the specific identification of meat species as a key importance to maintain consumers' trust and to comply with various local labelling legislations. As a reference approach, the application of PCR to meat speciation is always limited to few species, whereas there is a strong need ...
... Adulteration of meat in processed food is a sensitive issue since certain meat species are prohibited in some religions such as Islam and Judaism. Some meat types are also potential carrier of some deadly diseases such as severe acute respiratory syndrome, anthrax, and hepatitis. Furthermore, unconscious consumption of certain meat might lead to an allergic reaction. Feline meat is not only taboo ...
Tylopilus; models; least squares; near-infrared spectroscopy; adulterated products; chemometrics; mushrooms; information processing; Boletus edulis; Italy; China
Abstract:
... Boletus edulis and allied species (BEAS), known as “porcini mushrooms”, represent almost the totality of wild mushrooms placed on the Italian market, both fresh and dehydrated. Furthermore, considerable amounts of these dried fungi are imported from China. The presence of Tylopilus spp. and other extraneous species (i.e., species edible but not belonging to BEAS) within dried porcini mushrooms – m ...
adulterated products; ash content; briquettes; burning; charcoal; energy; fuels; issues and policy; monitoring; prices; renewable energy sources; urbanization; waste utilization; wastes; water content; Uganda
Abstract:
... As a result of the rising energy needs and environmental concerns, carbonized briquettes have been looked at as a possible substitute source of energy for charcoal in most of the developing regions. However their use and adoption in Uganda cannot be rated amidst continued increase in charcoal demand from the ever growing urbanization. This study therefore investigated burning performance and cost ...
... Lonicera japonica Thunb. is a well-known traditional herbal medicine in most East Asian countries. In China, the flower bud and stem of this plant are used for various clinical therapies, while the leaf is not officially recognized as an active part. Due to the similarities in their chemical constituents but great differences in their commercial values, the flower bud has been found to be adultera ...
... Fraud in the global food supply chain is becoming increasingly common due to the huge profits associated with this type of criminal activity. Food commodities and ingredients that are expensive and are part of complex supply chains are particularly vulnerable. Both herbs and spices fit these criteria perfectly and yet strategies to detect fraudulent adulteration are still far from robust. An FT-IR ...
Food and Drug Administration; adulterated products; antibodies; dairy products; detection limit; enzyme-linked immunosorbent assay; fluorescence; foods; immunosensors; liquid chromatography; mass spectrometry; melamine
Abstract:
... We report a droplet-based microfluidic immunosensor for the rapid and accurate detection of melamine, an organic base that has been implicated in widescale adulteration of food products such as milk. Our melamine assay is based on the competitive reaction between native melamine and a melamine-fluorescein isothiocyanate (FITC) conjugate against an anti-hapten antibody. The adoption of fluorescence ...
adulterated products; discriminant analysis; food industry; least squares; livestock breeding; microscopy; nonprotein nitrogen; raw materials; screening; soybean meal
Abstract:
... The quality and safety of soybean meal is a key matter for the livestock breeding and food industries, since it is one of the most important and widely used protein feed raw materials. As driven by commercial interests, new illegal adulterants which are unknown to consumers and regulators emerge constantly. In order to make up for the inadequacy of traditional detection methods, a novel non-target ...
... A label free electrochemical immunosensor for sensitive detection of porcine serum albumin (PSA) is reported in this work. The immunosensor was constructed by first electrochemically reducing 4-carboxyphenyl diazonium salt, which had been electrochemically generated in situ, to a stable 4-carboxyphenyl layer on carbon nanofiber-modified screen printed electrode. Antibodies were covalently attached ...
... In order to increase their profit, food producers may be tempted to replace expensive meat species by cheaper ones. Due to their selectivity and sensitivity, PCR based methods are frequently applied to identify and quantify meat species to detect food adulteration. Quantification of meat species in highly processed food products is, however, a difficult task. When we used a previously published re ...
... A novel, stable, simple and specific ultra-performance liquid chromatography method with ultraviolet detection (205 nm) for the simultaneous analysis of 25 anti-hypertensive substances was developed. The method was validated according to the International Conference of Harmonisation guidelines with respect to linearity, accuracy, precision, limit of detection (LOD), limit of quantitation (LOQ) and ...
adulterated products; developing countries; farmers; food security; government agencies; guidelines; health hazards; ripening; scientists; stakeholders; toxic substances
Abstract:
... Fruit ripening is a natural process in which a fruit goes through various physical and chemical changes and gradually becomes sweet, colored, soft, and palatable. Fruit ripening process can also be stimulated by applying artificial fruit ripening agents. Farmers and vendors often use artificial ripening agents to control the rate of fruit ripening. However, because of the potential health hazards ...
adulterated products; carbon; fructose; glucose; honey; isotopes; liquid chromatography; mass spectrometry; oxygen; protein value; radar; reducing sugars; sucrose; sugar content
Abstract:
... According to the AOAC 998.12 method, honey is considered to contain significant C-4 sugars with a C-4 sugar content of >7%, which are naturally identified as the adulteration. However, the authenticity of honey with a C-4 sugar content of <0% calculated by the above method has been rarely investigated. A new procedure to determine δ13C values of honey, corresponding extracted protein and individua ...
... Adulteration of Ginkgo products sold as unregistered supplements within the very large market of Ginkgo products (reputedly £650 million annually) through the post-extraction addition of cheaper (e.g. buckwheat derived) rutin is suspected to allow sub-standard products to appear satisfactory to third parties, e.g. secondary buyers along the value chain or any regulatory authorities. This study was ...
laws and regulations; fatty acids; linear models; regression analysis; adulterated products; milk fat; lard; gas chromatography; tallow
Abstract:
... The aims of the present study were to test the accuracy of the fatty acid ratios established by the Argentinean Legislation to detect adulterations of milk fat with animal fats and to propose a regression model suitable to evaluate these adulterations. For this purpose, 70 milk fat, 10 tallow and 7 lard fat samples were collected and analyzed by gas chromatography. Data was utilized to simulate ar ...
European Union; adulterated products; analytical methods; commercialization; dietary supplements; drugs; food plants; food safety; foods; human health; ingredients; muscles; risk; safety assessment; sales; sports; weight loss; United States
Abstract:
... In the last few years, the consumption of dietary supplements, especially those having plants as ingredients, has been increasing due to the common idea that they are natural products posing no risks to human health. In the European Union and the United States, dietary supplements are legally considered as foods/special category of foods, thus are not being submitted to any safety assessment prior ...
... A wide range of natural food colorants and coloring foodstuffs is available for the food industry to meet current costumer trends. Most natural pigments are more sensitive towards heat, light, and pH changes compared to their synthetic counterparts. Additionally, high dosages are often required to attain desired color hues and intensities. In this research article, we report on the broad and world ...
Actaea racemosa; adulterated products; cyclic GMP; discriminant analysis; guidelines; menopause; models; prediction; raw materials; species identification; ultraviolet-visible spectroscopy
Abstract:
... The North American Actaea racemosa L. (syn. Cimicifuga racemosa (L.) Nutt., commonly known as black cohosh), considered to be a more “natural” alternative to conventional therapies, is used to relieve menopausal symptoms. The high demand for plant material has led to problems with substitution/adulteration of raw material of wholesale origin. The authenticity of the starting material is crucial fo ...
... Adulteration of foods is a serious economic problem concerning most foodstuffs, and in particular meat products. Since high-priced meat demand premium prices, producers of meat-based products might be tempted to blend these products with lower cost meat. Moreover, the labeled meat contents may not be met. Both types of adulteration are difficult to detect and lead to deterioration of product quali ...
... Ginkgo biloba L. (Ginkgoaceae) leaf extract is one of the most popular herbal products on the market, as it contains flavone glycosides (≥ 24%) and terpene lactones (≥ 6%), which are proposed to have significant physiological effects. Unfortunately, the challenging financial climate has resulted in a natural health product market containing adulterated ginkgo products.42 ginkgo samples were analyz ...
... The need of accurate and reliable methods for DNA isolation and plant species identification in foodstuffs is of great importance, especially in the protection of high added value products. Fresh foods, which are not subjected to any modifications, are suitable for many kind of analysis; for processed products, such as musts, wines, olive oils, and pasta, the situation may be more complicated due ...
... It is common for as-prepared carbon nanotube (CNT) and graphene samples to contain remnants of the transition metals used to catalyze their growth; contamination may also leave other trace elemental impurities in the samples. Although a full quantification of impurities in as-prepared samples of carbon nanostructures is difficult, particularly when trace elements are intercalated or encapsulated w ...
adulterated products; analytical chemistry; apple juice; apples; caffeic acid; chlorogenic acid; dissociation; fruits; human nutrition; ionization; ions; isomers; metabolomics; pear juice; pears; quinic acid; tandem mass spectrometry
Abstract:
... Chlorogenic acids are among the most abundant phenolics found in the human diet. Of these, the mono-caffeoylquinic acids are the predominant phenolics found in fruits, such as apples and pears, and products derived from them. In this research, a comprehensive study of the electrospray ionization (ESI) tandem mass spectrometric (MS/MS) dissociation behavior of the three most common mono-caffeoylqui ...
... Knowledge on fossil resins (including amber and all their various types) has started to develop significantly since the second half of the 20th century mainly due to advancement of analytical methods and equipment. Nowadays, many researchers are focused on investigation of the resins due to not only their decorative appearance and its utilization in jewelry but also unique physicochemical features ...
Jacob de Jong; Patricia López; Hans Mol; Vincent Baeten; Juan Antonio Fernández Pierna; Philippe Vermeulen; Ursula Vincent; Ana Boix; Christoph von Holst; Monika Tomaniova; Jana Hajslova; Zengling Yang; Lujia Han; Susan MacDonald; Simon A. Haughey; Christopher T. Elliott
... In the past decade, several major food safety crises originated from problems with feed. Consequently, there is an urgent need for early detection of fraudulent adulteration and contamination in the feed chain. Strategies are presented for two specific cases, viz. adulterations of (i) soybean meal with melamine and other types of adulterants/contaminants and (ii) vegetable oils with mineral oil, t ...
... Loop-mediated isothermal amplification (LAMP) is a diagnostic method for amplification of DNA with rapid and minimal equipment requirement. In the present study, we applied the LAMP assay for rapid detection of cow components adulteration in buffalo milk/meat samples. The test can be completed within around 1 h 40 min starting from DNA extraction and can be performed in water bath without requirem ...
... Psammosilene tunicoides is an important herb used in traditional Chinese medicine. It has been proved to benefit the stomach and treat rheumatism and gout. On the market, this herbal medicine is frequently adulterated by the related species Silene viscidula. Correct identification of P. tunicoides is important to ensure herbal quality, safety, authenticity and health for consumers. However, the id ...
... Adulteration of oils and fats is an important commercial issue, which needs intervention from regulatory agencies. Tremendous amount of research has been carried out during the past several decades to address this, starting from classical methods to more sophisticated instrumental techniques. Instrumental techniques based on chromatography and infrared spectroscopy have received particular attenti ...
adulterated products; algorithms; chemical composition; data collection; hyperspectral imagery; models; peanuts; wheat flour
Abstract:
... In recent years, Independent Components Analysis (ICA) has proven itself to be a powerful signal-processing technique for solving the Blind-Source Separation (BSS) problems in different scientific domains. In the present work, an application of ICA for processing NIR hyperspectral images to detect traces of peanut in wheat flour is presented. Processing was performed without a priori knowledge of ...
... The large commercial success of pomegranate increase the likelihood of economically motivated adulteration (EMA), which has been gradually spotted with the undeclared addition of anthocyanin-rich plants or cheaper fruit juices used as bulking and diluting agents. A method based on Sequence-Characterized Amplified Regions (SCARs) was developed to detect the presence of Aristotelia chilensis, Aronia ...
... Various herbal medicines have been developed and used in various parts of the world for thousands of years. Although locally grown indigenous plants were originally used for traditional herbal preparations, Western herbal products are now becoming popular in Japan with the increasing interest in health. At the same time, there are growing concerns about the substitution of ingredients and adultera ...
C3 plants; C4 plants; adulterated products; beet sugar; beets; cane sugar; markets; mass spectrometry; nuclear magnetic resonance spectroscopy; principal component analysis; stable isotopes; sucrose; sugar beet; sugarcane
Abstract:
... BACKGROUND: Due to possible falsification of sugar cane products with cheaper alternative (sugar beet) on the market, a simple analytical methodology needs to be developed to control the authenticity of sugar products. RESULTS: A direct ¹³C nuclear magnetic resonance (NMR) method has been validated to differentiate between sucrose‐based sugar products produced from sugar beet (C₃ plant) and sugar ...
Carthamus tinctorius; adulterated products; canola; chemists; corn; cultivars; erythrodiol; extra-virgin olive oil; hazelnut oil; hazelnuts; markets; olive pomace; palm oils; peanuts; purity; soybeans; standards and grades; sunflower oil; United States
Abstract:
... Extra virgin olive oil (EVOO) has a long history of economic adulteration, the detection of which presents significant challenges due to the diverse composition of cultivars grown around the world and the limitations of existing methods for detecting adulteration. In this study, using Method COI/T.20/Doc. No. 30/Rev. 1 of the International Olive Council, the authenticity of 88 market samples of EV ...
... Nowadays, there is a constant increase of health products (food supplements, medical devices and so on), in the market, despite the crisis that involves a lot of nations at the international level. The plants and their derivatives are present in high percentage in these products and moreover people usually have great trust in plants and in natural products in general. The above-mentioned products ...
adulterated products; borates; buffers; chemometrics; derivatization; electrophoresis; free amino acids; fruit juices; glutamic acid; hydrophobicity; methanol; micellar electrokinetic capillary chromatography; pH; passion fruits; principal component analysis; provenance; temperature
Abstract:
... A separation method was developed in order to quantify free amino acids in passion fruit juices using CE‐UV. A selective derivatization reaction with FMOC followed by MEKC analysis was chosen due to the highly interconnected mobilities of the analytes, enabling the separation of 22 amino acids by lipophilicity differences, as will be further discussed. To achieve such results, the method was optim ...
... Adulteration of milk with whey is difficult to detect because these two have similar physical and chemical characteristics. The traditional methodologies to monitor this fraud are based on the analysis of caseinomacropeptide. The present study proposes a new approach to detect and quantify this fraud using the fatty acid profiles of milk and whey. Fatty acids C14:0, C16:0, C18:0, C18:1, C18:2 and ...
... There is a need to develop rapid tools to screen milk products for economically motivated adulteration. An understanding of the physiochemical variability within skim milk powder (SMP) and non-fat dry milk (NFDM) is the key to establishing the natural differences of these commodities prior to the development of non-targeted detection methods. This study explored the sources of variance in 71 comme ...
adulterated products; apricots; biomarkers; catechin; chlorogenic acid; computer software; coumaric acids; epicatechin; fruit juices; fruit puree; fruits; gene expression regulation; peaches; procyanidins; rutin; spectrometers; tandem mass spectrometry; ultra-performance liquid chromatography; vegetables
Abstract:
... The genuineness of fruit juices and purees is regulated by guidelines of European Fruit Juice Association. Nevertheless, the addition of peach puree to apricot puree is considered the most common adulteration, very difficult to discover. In this study, the composition in free and conjugated polyphenols of apricot and peach purees was performed by target and untarget approaches with Q‐Exactive™ qua ...
... Edible bird’s nest (EBN) is made from the glutinous salivary secretion of highly concentrated mucin glycoprotein by swiftlets (genus Aerodramus or Collocalia) native to the Indo-Pacific region. The unique Raman spectrum of EBN has vibrational lines that can be assigned to peptides and saccharides in the glycoprotein, and it can be used to screen for adulteration. The common edible adulterants clas ...
Radigya M. Correia; Laiza B. Loureiro; Rayza R. T. Rodrigues; Helber B. Costa; Bruno G. Oliveira; Paulo R. Filgueiras; Christopher J. Thompson; Valdemar Lacerda; Wanderson Romão
Coffea arabica; Coffea canephora; Fourier transform infrared spectroscopy; adulterated products; calibration; detection limit; ionization; least squares; mass spectrometry; models; prediction
Abstract:
... This paper reports a method to quantify Robusta coffee in Arabica coffee blends using univariate and multivariate models. Coffee samples were analyzed by negative-ion mode electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI(−)FT-ICR MS) and by attenuated total reflection Fourier transform spectroscopy in the mid-infrared region (ATR-FTIR). To build the univaria ...
... Chemometric discrimination of extra virgin olive oils (EVOO) from whole and stoned olive pastes was carried out by using Fourier transform infrared (FTIR) data and partial least squares-discriminant analysis (PLS1-DA) approach. Four Italian commercial EVOO brands, all in both whole and stoned version, were considered in this study. The adopted chemometric methodologies were able to describe the di ...
adulterated products; antioxidant activity; apple juice; ascorbic acid; chemometrics; flavonoids; juice quality; pH; prediction; reducing sugars; storage time; total soluble solids; ultraviolet-visible spectroscopy; vegetable juices
Abstract:
... This study demonstrates the use of UV spectroscopy (UV) in combination with chemometrics as a simple and feasible approach for analysis of variety, adulteration, quality and ageing of apple juice. The results show that PCA‐UV is adequate to differentiate apple juice varieties and adulteration. The percentage of the adulterant can be detected by PLSR‐UV with RMSE < 0.7783% and R² > 0.9980. For the ...
... Main possible honey fraud is the addition of various sugar syrups. But, there are also other types of fraud, such as deception on the geographical and/or botanical origin product. Providing a product of the hive with full authenticity is therefore crucial for the preservation of beekeeping. In this pursuit, voltammetric electronic tongue (VE-tongue) was employed to classify honey samples from diff ...
... Maple syrup is a natural sweetener obtained from the sap of maple trees (Acer saccharum), highly rich in bioactive molecules placing it among the most desirable and natural sweeteners for human consumption (agave, sugarcane, corn and honey). Carbohydrate profiles (amounts and composition) as well as FTIR-PCA classification of maple syrup were performed and compared to other natural sweeteners. TLC ...
... An efficient, fast, and reliable reversed phase high-performance liquid chromatography based method was developed to detect specific adulterant in premium and pure ghee (clarified butterfat) samples. The method is based on the detection of cholesterol and β-sitosterol as markers in the unsaponifiable matter of pure ghee and adulterated ghee samples, respectively. The reversed phase high-performanc ...
... Following the discovery of horsemeat in beef products in Europe in 2013, restoring consumers' confidence in processed meat products as well as in all the agencies involved – producers, food safety authorities, retailers – soon became a key priority. However, the European public's confidence in processed meat products and their views about government and industry actions to manage fraudulent practi ...
Claudio Vidal Giné; Mireia Ventura Vilamala; Iván Fornís Espinosa; Cristina Gil Lladanosa; Nú Calzada Álvarez; Ariadna Fitó Fruitós; Joan Rodríguez Rodríguez; Antonia Domíngo Salvany; Rafael de la Torre Fornell
adulterated products; caffeine; crystals; energy; gas chromatography; illicit drugs; lidocaine; markets; mass spectrometry; thin layer chromatography
Abstract:
... Although 3,4-methylenedioxymethamphetamine (MDMA) has a long history in recreational settings, research on its composition (purity and adulteration) has focused only on tablets even though crystal format is readily available for users.Drug specimens collected between January 2000 and December 2014 were analyzed at Energy Control's facilities. All samples were voluntarily provided by drug users. Sa ...
... The wide distribution of Valeriana officinalis as a herbal remedy as well as the considerably higher concentration of putative mutagenic valepotriate metabolites in other drug-delivering valerian species like Valeriana procera Kunth and Valeriana jatamansi Jones ex Roxb. illustrate the necessity of secure authentication of roots of Valeriana officinalis s.l., especially as the morphologically simi ...
... Concerns about meat authenticity are increasing recently, due to great fraud scandals. This paper analysed real samples (43 adulterated and 12 controls) originated from criminal networks dismantled by the Brazilian Police. This fraud consisted of injecting solutions of non-meat ingredients (NaCl, phosphates, carrageenan, maltodextrin) in bovine meat, aiming to increase its water holding capacity. ...
... The aim of present study is to investigate the combination of Fourier transform infrared (FT-IR) spectroscopy with pattern recognition to recognize the standard saffron from those which have been adulterated with various types of food colorants. Transmittance FT-IR spectra have been obtained for standard saffron and six mixed samples with food colorants including Tartrazine, Sunset yellow, Azorubi ...
adulterated products; biosensors; chemometrics; chromatography; electronic nose; fruit juices; human nutrition; immunoassays; milk; spectroscopy; supply chain
Abstract:
... Milk and fruit juices have paramount importance in human diet. Increasing demand of these liquid foods has made them vulnerable to economic adulteration during processing and in supply chain. Adulterants are difficult to detect by consumers and thus necessitating the requirement of rapid, accurate and sensitive detection. The potential adulterants in milk and fruit juices and their limits set by d ...
adulterated products; apple juice; grape juice; grapes; high performance liquid chromatography; quality control; sorbitol; wines
Abstract:
... Due to increasing grape juice consumption, quality control is a reality in all countries which produce and consume this product. The most common form of adulteration is by substituting grape juice with apple juice. The adulterated samples can be identified by specific analysis, since apple juice has some compounds that grape has not. There are many studies about the phlorizin and sorbitol content ...
adulterated products; discriminant analysis; electronic nose; flavor; gas chromatography-mass spectrometry; multivariate analysis; orange juice; prediction; principal component analysis
Abstract:
... The use of electronic nose and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) as rapid tools for detection of orange juice adulteration has been preliminarily investigated and compared. Freshly squeezed orange juices were tentatively adulterated with 100% concentrated orange juices at levels ranging from 0% to 30% (v/v). Then the E-nose response signals and FTIR sp ...
... Ghee forms an important component of the diet of human beings due to its rich flavor and high nutritive value. This high priced fat is prone to adulteration with cheaper fats. ATR-FTIR spectroscopy coupled with chemometrics was applied for determining the presence of goat body fat in ghee (@1, 3, 5, 10, 15 and 20% level in the laboratory made/spiked samples). The spectra of pure (ghee and goat bod ...
adulterated products; food quality; food research; granules; hyperspectral imagery; least squares; models; nondestructive methods; peas; pistachios; prediction; principal component analysis
Abstract:
... A rapid and nondestructive method for determination of green pea adulteration in pistachio nut granules was demonstrated using Raman hyperspectral imaging combined with principal component analysis and partial least squares regression (PLSR). Pistachio nut granule samples were adulterated with green pea granules at different concentrations ranging from 20 to 80 % (w/w). Hyperspectral Raman images ...
adulterated products; animal byproducts; canned foods; capillary electrophoresis; cattle; chickens; dogs; enzyme-linked immunosorbent assay; gel electrophoresis; pet foods; polymerase chain reaction; restriction fragment length polymorphism; sheep; swine
Abstract:
... BACKGROUND: The potential presence of undeclared animal by‐products in pet foods is not subject to routine examination. Previously published methods for species‐based identification of animal by‐products have not been used routinely owing to inconsistent results. The present study evaluated the utility of several approaches for accurate identification of animal by‐products in 11 commercial brands ...
adulterated products; fraud; high fructose corn syrup; honey; proteins; Uruguay
Abstract:
... The methodology of internal standard which relies on the difference between the isotopic composition in terms of δ¹³C of honey and its proteins, has been extensively used in many countries to assess honey adulteration with high fructose corn syrup (HFCS) or other C4-adulterants, but there have been no reports of such studies in Uruguay. To obtain this information, 51 honey samples were collected f ...
... Method comparison of triacyl glycerol (TAG) and sterol components of fats of ghee based sweets was carried out on dairy ghee, laboratory prepared control sample and market samples. The fat was extracted from control and market samples. Determination of TAG and sterol composition of the fats was carried out using low resolution Gas Chromatography. The quantification of cholesterol and β-sitosterol ...
adulterated products; correlation; detection limit; dried milk; elemental composition; least squares; milk; principal component analysis; spectrometers; spectroscopy; whey; whey powder
Abstract:
... A rapid and in situ method has been developed to detect and quantify adulterated milk powder through adding whey powder by using laser induced breakdown spectroscopy (LIBS). The methodology is based on elemental composition differences between milk and whey products. Milk powder, sweet and acid whey powders were produced as standard samples, and milk powder was adulterated with whey powders. Based ...
... It was previously demonstrated that Fourier transform near infrared (FT-NIR) spectroscopy and partial least squares (PLS1) were successfully used to assess whether an olive oil was extra virgin, and if adulterated, with which type of vegetable oil and by how much using previously developed PLS1 calibration models. This last prediction required an initial set of four PLS1 calibration models that we ...
... Halal (permissible or lawful) poultry meat production must meet industry, economic, and production needs, and government health requirements without compromising the Islamic religious requirements derived from the Qur'an and the Hadiths (the actions and sayings of the Prophet Muhammad, peace and blessings be upon him). Halal certification authorities may vary in their interpretation of these teach ...
... Recently, the number of the cases in which weight loss products have been sold with illegal adulterants has increased, as awareness of the problems of obesity grows. In this study, we developed simultaneous analysis methods to rapidly and accurately identify ingredients illegally mixed with foods and dietary supplements. Twenty-three anti-obesity drugs in foods and dietary supplements were determi ...
... Mislabeling, contamination, and economic adulteration of meat products with undeclared pork tissues are illegal under regulations promulgated by numerous regulatory agencies. Nonetheless, analysis of the European meat industry has revealed pervasive meat adulteration, necessitating more extensive application of meat authentication testing. As existing methods for meat speciation require specialize ...
adulterated products; analytical methods; carvacrol; dairy cattle; half life; kidneys; lactation; liver; meat; milk; pharmacokinetics; thymol; tissues; United States
Abstract:
... Thymol and carvacrol may be present in several phytoceutical products but there are no well-defined methods to measure these compounds in meat and milk from treated animals. U.S. regulatory authorities deem their presence as an adulteration of food. A rapid and sensitive HS-SPME-GC-MS/MS method was developed for the detection of thymol and carvacrol in bovine milk, plasma, liver, kidney, and fat. ...
... Global rice supplies have been found contaminated with unapproved varieties of genetically modified (GM) rice in recent years, which has led to product recalls in several of countries. Faster and more effective detection of GM contamination can prevent adulterated food, feed and seed from being consumed and grown, minimize the potential environmental, health or economic damage. In this study, a si ...
... The use of kerosene fuels in internal combustion engines is getting more widespread. The North Atlantic Treaty Organization military is pushing for the use of a single fuel on the battlefield in order to reduce logistical issues. Moreover, in some countries, fuel adulteration is a serious matter where kerosene is blended with diesel and used in diesel engines. So far, most investigations done rega ...
DNA fragmentation; DNA primers; Patrinia villosa; adulterated products; genetic markers; herbal medicines; medicinal plants; quality control; random amplified polymorphic DNA technique
Abstract:
... The authentication of components from plant species is vital for the quality control and standardization of herbal medicines. Due to morphological similarities when dried, it is very difficult to distinguish authentic medicinal plants Patrinia villosa and P. scabiosifolia from adulterants of P. rupestris and P. saniculifolia in the herbal medicine Patriniae Radix. To establish a reliable authentic ...
... Identification of plant species is important for standardizing herbal medicine. Cynanchum wilfordii (Baekshuoh in Korean) and Polygonum multiflorum (Hashuoh in Korean) are important oriental medicinal herbs in Korea, Japan, and China. Cynanchum auriculatum is a faster growing and more productive plant than C. wilfordii; and, it is not recognized as a medicinal plant in the Korean Pharmacopoeia. C. ...
... Total RNA samples were used to establish qualitative and quantitative PCR-based methods for assessing meat adulteration. The primers were designed based on the mRNA sequences of troponin I (TnI), mitochondrial ribosomal protein (MRP) and tropomodulin genes to distinguish chicken, pork, goat, beef and ostrich. There was no cross reaction between the primers, and the detection limit of the cDNA temp ...
Aristolochia; Oriental traditional medicine; Stephania tetrandra; adulterated products; carcinogens; carcinoma; discriminant analysis; herbal medicines; hyperspectral imagery; kidney diseases; least squares; models; nephrotoxicity; prediction; quality control; wavelengths; Belgium; China
Abstract:
... Stephania tetrandra (“hang fang ji”) and Aristolochia fangchi (“guang fang ji”) are two different plant species used in Traditional Chinese Medicine (TCM). Both are commonly referred to as “fang ji” and S. tetrandra is mistakenly substituted and adulterated with the nephrotoxic A. fangchi as they have several morphological similarities. A. fangchi contains aristolochic acid, a carcinogen that caus ...
... The aim of this study was to find a simple way to differentiate between rye and wheat flour and their mixtures by using the kinetic parameters of Karl Fischer water titration (KFT). Consequently, the water content and type of molecules in rye and wheat mixtures used in Romanian bread making have been investigated by means of volumetric KFT. Further, the kinetics of KFT have been determined and nov ...
adulterated products; discriminant analysis; gas chromatography; grapes; mass spectrometry; principal component analysis; provenance; red wines; solid phase microextraction; white wines; winemaking
Abstract:
... Among methods to detect wine adulteration, profiling volatiles is one with a great potential regarding robustness, analysis time and abundance of information for subsequent data treatment. Volatile fraction fingerprinting by solid-phase microextraction with direct analysis by mass spectrometry without compounds separation (SPME-MS) was used for differentiation of white as well as red wines. The ai ...
... We demonstrate the utility of direct analysis in real time ionization coupled with high resolution time-of-flight mass spectrometry (DART-HRTOFMS) in revealing the adulteration of commercially available Sceletium tortuosum, a mind-altering plant-based drug commonly known as Kanna. Accurate masses consistent with alkaloids previously isolated from S. tortuosum plant material enabled identification ...
... Adulteration and allergenic food materials are a common problem all around the world. European legislation (EU) 1169/2011/EC requires labelling of food products with respect to the presence of allergenic components including nuts, cereals or any other food products. Therefore, rapid methods for analysis of food ingredients are required to enforce this legislation. Near Infrared Spectroscopy (NIRS) ...
... Beef, buffalo, and pork adulteration in the food chain is an emerging and sensitive issue. Current molecular techniques to authenticate these species depend on polymerase chain reaction (PCR) assays involving long and single targets which break down under natural decomposition and/or processing treatments. This novel multiplex polymerase chain reaction–restriction fragment length polymorphism assa ...
... A novel method for quantitative prediction and variable-selection on spectroscopic data, called Durbin-Watson partial least-squares regression (dwPLS), is proposed in this paper. The idea is to inspect serial correlation in infrared data that is known to consist of highly correlated neighbouring variables. The method selects only those variables whose intervals have a lower Durbin-Watson statistic ...
... INTRODUCTION: The medicinal plant Actaea racemosa L. (Ranunculaceae, aka black cohosh) is widely used to treat climacteric complaints as an alternative to hormone substitution. Recent trials prove efficacy and safety of the approved herbal medicinal products from extracts of pharmaceutical quality. This led to worldwide increasing sales. A higher demand for the plant material results in problems w ...
adulterated products; food safety; foods; fraud; risk; China
Abstract:
... Based on 1553 media reports on food safety scandals and concerns, we conducted an aggregated analysis on economically motivated food frauds and adulterations in China. A systematic approach is used to analyze the country's food safety concern in terms of fraud type, implicated foods, adulterants, contaminants and abnormal conditions, and concerned food sources. This study indicate that economicall ...
adulterated products; alkanes; beeswax; gas chromatography-mass spectrometry; quality control
Abstract:
... The efficiency of the gas chromatography - mass detector (GC-MS) technique for the detection of beeswax adulterated with paraffin, was evaluated. For this purpose, beeswax samples with paraffin additions (3, 5, 10, 30, 50%) were analysed. Since not enough is known about paraffin compositions, and since it is difficult to detect paraffin in beeswax, the aim of our research was also to compare the h ...
adulterated products; analytical methods; chitosan; detection limit; dried milk; electrochemistry; electrodes; electron transfer; equations; gold; ionic liquids; kidneys; melamine; methylene blue; milk; nanoparticles; nitrogen; oxidation; pH; protein content; regression analysis; scanning electron microscopes; transmission electron microscopes; zinc oxide
Abstract:
... Melamine is an organic base and a triazine of cyanamide with a 1,3,5-triazine skeleton. It contains 67% a nitrogen by mass. It is introduced as a contaminant in food products with the intent to falsify total protein content. The illegal adulteration of infant milk powder with melamine has resulted in chronic kidney and urinary tract failure. To date, several analytical methods have been developed ...
... There is a growing concern for the problem of food authenticity assessment (and hence the detection of food adulteration), since it cheats the consumer and can pose serious risk to health in some instances. Unfortunately, food safety/integrity incidents occur with worrying regularity, and therefore there is clearly a need for the development of new analytical techniques.In this review, after brief ...
adulterated products; cyclohexanes; derivatization; flavor; gas chromatography-mass spectrometry; odors; small fruits; solvents; wines
Abstract:
... Native concentrations and enantiomeric distribution of 1,2-propanediol in various wines were studied in order to evaluate its merits as a potential marker for aroma adulteration in wine. Heart-cut multidimensional gas chromatography coupled to mass spectrometry was applied to analyze 1,2-propanediol after salting-out of the polar phase, derivatization with phenyl boronic acid, and extraction with ...
adulterated products; buffers; centrifugation; chemometrics; dairy protein; gel chromatography; milk; milk fat; nutritive value; pH; principal component analysis; quality control; raw milk; wavelengths; China
Abstract:
... Raw milk adulteration frequently occurs in undeveloped countries. It not only reduces the nutritional value of milk, but it is also harmful to consumers. In this paper, we focused on investigating an efficient method for the quality control of raw milk protein. A gel filtration chromatography (GFC) fingerprint method combined with chemometrics was developed for fingerprint analysis of raw milk. To ...
DNA; DNA barcoding; Vitex negundo; adulterated products; adverse effects; alternative medicine; asthma; barcoding; cough; fever; genes; health services; internal transcribed spacers; loci; markets; pharyngitis; quality control; syrups; Philippines
Abstract:
... The majority of the population in the Philippines relies on herbal products as their primary source for their healthcare needs. After the recognition of Vitex negundo L. (lagundi) as an important and effective alternative medicine for cough, sore throat, asthma and fever by the Philippine Department of Health (DOH), there was an increase in the production of lagundi-based herbal products in the fo ...
... Turmeric powder (Curcuma longa L.) is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder. Due to its high demand in international trade, turmeric powder has been subject to economically driven, hazardous chemical adulteration. This study utilized Fourier Transform-Raman (FT-Raman) and Fourier Transform-Infra Red (FT-IR) spectroscopy ...
Ben‐Hur Ramos Ferreira Gonçalves; Grazielly de Jesus Silva; Silvania Farias Oliveira Pontes; Rafael da Costa Ilhéu Fontan; Antonio Silvio do Egito; Sibelli Passini Barbosa Ferrão
... Electrophoretic and chromatographic techniques were used to determine water‐soluble peptide profiles aiming to identify the adulteration of buffalo milk mozzarella cheese by the addition of cow's milk. Thus, cheeses were produced with contents of cow's milk varying from 0% to 100%, and the peptides extracted after production and after 20 days of refrigeration. Polyacrylamide gel electrophoresis un ...
Raman spectroscopy; active ingredients; adulterated products; analytical chemistry; colorimetry; glucose; pharmaceutical industry; principal component analysis; risk; screening; spectrometers; sugar substitutes
Abstract:
... In the pharmaceutical industry, dextrose is used as an active ingredient in parenteral solutions and as an inactive ingredient (excipient) in tablets and capsules. In order to address the need for more sophisticated analytical techniques, we report our efforts to develop enhanced identification methods to screen pharmaceutical ingredients at risk for adulteration or substitution using field-deploy ...
... Saffron (Crocus sativus) is the most expensive spice in the world. As a consequence, saffron has frequently been associated with an unrivalled degree of adulteration. The aim of this work was searching for DNA-barcode candidates as molecular markers to differentiate C. sativus from allied species and assessing the authenticity of saffron. New primers were specifically designed targeting three DNA ...
... Refined oils including corn, sunflower, soybean, and palm oils as well as low-quality olive oil such as refined lampante and pomace olive oils are commonly used for extra-virgin olive oil (EVOO) adulteration. Indeed, K ₂₇₀ could be used as a parameter for the detection of EVOO fraud for each type of the studied refined oils, 10 % olive, 4 % pomace olive, 10 % palm, 5 % corn, and 2 % soybean oils. ...
... Garlic represents a source of various biologically active phytomolecules. The content of phenolic compounds in garlic varies greatly with genetic, agronomic, and environmental factors, and the cultivar is the primary factor which determines this variation. The aim of this study was to analyse by Fourier transform near infrared spectroscopy (FT-NIR) different garlic cultivars, organically grown or ...
... Two data fusion strategies (high- and mid-level) combined with a multivariate classification approach (Soft Independent Modelling of Class Analogy, SIMCA) have been applied to take advantage of the synergistic effect of the information obtained from two spectroscopic techniques: FT-Raman and NIR. Mid-level data fusion consists of merging some of the previous selected variables from the spectra obt ...
... In this paper, we propose a feasible, sample preparation free and fast validated methodology for the detection and quantitative analysis of Minas Frescal cheese waste whey as an adulterant in raw milk using mid-infrared spectroscopy with Fourier transform (FTMIR) along with the chemometric technique of partial least squares (PLS). The PLS model was built in accordance with Brazilian and internatio ...
Helianthus annuus; adulterated products; chemical analysis; chemometrics; combustion; discriminant analysis; fatty acid composition; gas chromatography; linoleic acid; mass spectrometry; oleic acid; principal component analysis; provenance; pumpkin oil; pumpkins; rapeseed; soybean oil; stable isotopes
Abstract:
... This study aimed to verify the authenticity and geographical origin of pumpkin seed oil using chemical analysis by gas chromatography (GC) and isotopic characterisation by gas chromatography combustion stable isotope ratio mass spectrometry (GC/C/IRMS) combined with chemometric analysis. Thirty-eight pumpkin seed samples from various parts of the world were collected and authentic oils were prepar ...
adulterated products; docosahexaenoic acid; eicosapentaenoic acid; equipment; fatty acid composition; fish oils; good laboratory practices; guidelines; krill; nuclear magnetic resonance spectroscopy; phospholipids; quantitative analysis; spectral analysis; stable isotopes; triacylglycerols
Abstract:
... The detailed analysis of krill oil is of importance to be able to differentiate other oils, identify adulterated products, and provide the highest quality associated with its beneficial health effects. The objective of this study was to demonstrate the usefulness of the combination of ³¹P, ¹H and ¹³C nuclear magnetic resonance (NMR) spectroscopies to characterize the krill oil profile. It was foun ...
Fourier transform infrared spectroscopy; adulterated products; brown sugar; least squares; maple syrup; models; prediction; quantitative analysis; reflectance; sugars; white sugar
Abstract:
... Ternary mixtures of sugar solutions containing maple syrup were studied quantitatively using Fourier transform infrared (FTIR) attenuated total reflectance (ATR) technique coupled with partial least squares regression (PLS) and selection of spectral variables. Two ternary mixtures were analyzed; first ternary mixture contained maple syrup, white sugar solution, and fully inverted sugar solution; s ...
HACCP; adulterated products; agribusiness; business enterprises; food industry; food security; foodborne illness; fruits; funding; good hygiene practices; governance; infrastructure; irrigation; issues and policy; laws and regulations; livestock; market competition; markets; meat; monitoring; prices; public health; vegetables; Afghanistan
Abstract:
... Afghanistan has significant competitive advantages in agribusiness. Much has been said about Afghanistan's unrealized potential in this sector over the years and many specialists have highlighted challenges in infrastructure, access to finance, and inadequate legislation as barriers to growth in the sector. Many have also pointed to its potential productivity increase as a way to help alleviate fo ...
... Several Shiga toxin-producing Escherichia coli (STEC) are considered adulterants in raw, non-intact ground meat, and numerous detection assays for these microorganisms have been investigated. The objective of this research was to determine the efficacy of formalin-fixed STEC cells as a potential means to calibrate various detection assays. Eight and ten percent formalin-fixed cells were compared w ...
... Avocado oil is one of the functional oils having high quality and high price in the market. This oil shows many benefits for the human health and is applied in many cosmetic products. The authentication of avocado oil becomes very important due to the possible adulteration of avocado oil with other lower priced oils, such as palm oil and canola oil. In this study, Fourier transform infrared spectr ...