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... BACKGROUND: 'Diffuse skin browning' (DSB) is a physiological disorder that affects Golden Delicious apples treated with 1-methylcyclopropene (1-MCP). Although a very high incidence is found, very little is known about the etiology of this disorder. This study aims to provide an understanding of the causes of this disorder and prevent it.RESULTS: A very high incidence of DSB was found in 1-MCP-trea ...
... BACKGROUND: Extensive physiological and biological emphasis has been placed on pharmaceutical and medicinal uses of mushrooms containing β-glucans, but their incorporation into processed functional foods is quite limited. Thus, low-grade Lentinus edodes mushrooms were utilised to produce β-glucan-enriched materials (BGEMs), which were evaluated as a high-fibre and low-calorie substitute for wheat ...
... BACKGROUND: Quercetin‐3‐O‐β‐d‐glucopyranoside (isoquercitrin) and quercetin‐3‐O‐rutinoside (rutin) are common components of a normal human diet and are increasingly used in food supplements. Here their effect on mutagenesis and immunity is shown. RESULTS: The in vitro (anti)mutagenic potential was compared with that of quercetin using the Ames test in Salmonella typhimurium His⁻ strains TA100, TA9 ...
hazelnuts; odors; port wines; quantitative analysis; sensory evaluation
Abstract:
... 1,3-Dimethoxybenzene was identified by GC–O, GC–MS and Kovats indices (polar Supelcowax, 1709; non-polar Rtx-5MS, 1158) as a new volatile component of port wine. Sensory evaluation described this compound as having a sweet medicinal odour with hazelnut, resinous and woody notes. Respective threshold limits in model wine and port wine were 21 and 47 µg l−1. Quantitative analysis by GC–MS, using a s ...
... Chinese cabbages cv 'Yuki' (Brassica campestris L ssp pekinensis (Lour) Olsson) were treated with air containing 1-methylcyclopropene (1-MCP) at concentrations ranging from 0 to 1 microliter l(-1) for 12 h at 22 degrees C before storage for 9 weeks at 3 degrees C. Quality, weight loss and trimming loss were measured before treatment, and before and after storage, but were not influenced by 1-MCP. ...
... BACKGROUND: Apricots (Prunus armeniaca cv. Búlida) were treated with 1 mL L⁻¹ 1-methylcyclopropene (1-MCP) immediately after harvest and stored in air at 2 °C for 21 days. Antioxidant levels (ascorbic acid and carotenoids), enzymatic antioxidant activities (superoxide dismutase (SOD) and unspecific peroxidase (POX)) and total antioxidant capacity (trolox equivalent antioxidant capacity (TEAC)) we ...
... Lipoxygenase was prepared from Atlantic mackerel muscle using differential centrifugation, ammonium sulphate precipitation and gel permeation (phenyl Sephadex G-50) column chromatography. The crude lipoxygenase enzyme preparation was characterised by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), which showed two prominent bands with molecular weights of 119 and 125 kDa. Fr ...
... The detailed analysis of peach seed oil was performed using 1H and 13C NMR spectroscopy. From the 13C NMR solution spectra it was possible to detect the content of saturated, mostly palmitic fatty acids (approximately 100 g kg(-1)), the oleic-linoleic ratio in sn-1,3 and sn-2 positions was (2:1 and 1:2) and the positional distribution of glycerol esters on triacylglycerol chains, which is a mixtur ...
nuclear magnetic resonance spectroscopy; wheat flour; durum wheat; food quality; Triticum aestivum; Triticum turgidum subsp. durum; hydrogen; breads; mass spectrometry; Italy
Abstract:
... Recent successful applications of proton high resolution magic angle spinning nuclear magnetic resonance (1H HR-MAS NMR) and isotope ratio mass spectrometry (IRMS) in food science have prompted the authors to use these new techniques to analyse bread and flour samples produced in southern Italy. The aim of this work was to find qualitative and quantitative information that could be exploited to ch ...
... BACKGROUND: Edible flowers have been used in cooking as foods as well as medicine alternatives. The objectives were to identify a major class of organic compounds in edible flowers by applying proton nuclear magnetic resonance (¹H‐NMR) metabolite fingerprinting and to evaluate bioactivity including antioxidant and α‐amylase and α‐glucosidase inhibitory activities. RESULTS: A total of 32 metabolite ...
acetates; anserine; boiling; breast meat; chicken meat; creatine; creatinine; deep fat frying; fatty acids; flavor; gas chromatography-mass spectrometry; glucose; lactic acid; metabolome; molecular weight; multivariate analysis; nuclear magnetic resonance spectroscopy; processing stages; taurine; variance; washing; water solubility
Abstract:
... BACKGROUND: Boiled Wuding chicken was produced using whole chicken by washing, boiling 1 h with salt, deep frying, and boiling 2 h. The effect of the process on the water‐soluble low molecular weight (WLOM) compound profiles of products was characterized using proton nuclear magnetic resonance spectroscopy, and the fatty acid composition of products was analyzed using gas chromatography–mass spect ...
... BACKGROUND: ‘Hami’ melon is susceptible to softening during postharvest storage at ambient temperature, which enhances postharvest deterioration and limits transportation and storage. To look for a method of softening control, the effect of 1‐methylcyclopropene (1‐MCP) on regulating postharvest softening of ‘Hami’ melon fruit was investigated. RESULTS: 1‐MCP treatment at 1 µL L−1 significantly red ...
... BACKGROUND: The potential of 1‐methylcyclopropene (1‐MCP) to maintain postharvest storage of sweet potato was studied. In two separate experiments, the orange‐fleshed sweet potato cv. Covington was treated with 1‐MCP (1.0 µL L⁻¹, 24 h) and roots stored at 15 °C. During storage, samples were evaluated for the respiration rate, sprout growth, weight loss, incidence of decay and changes in dry matter ...
... Experimental work was carried out in order to determine the usefulness of the 2-alkylcyclobutanones as markers for irradiated Camembert cheese, salmon meat, mango and papaya. Both 2-dodecylcyclobutanone (2-DCB) and 2-tetradecylcyclobutanone (2-TCB) were readily detected in Camembert cheese even after storage for 26 days at 10 degrees C. A linear relationship was observed between irradiation dose ( ...
... BACKGROUND: Processing of vegetables in the food industry usually includes dehydration as a preservation process. Industrial convective air drying of carrot can involve steam blanching of the raw product after peeling and cutting, and different stages of dehydration (first space, second space and final drying). Although the shelf-life of carrot is significantly extended, important changes in its c ...
European Union; attitudes and opinions; cheeses; consumer preferences; grains; meat products; protected designation of origin; vegetables; Northern European region; Southern European region
Abstract:
... Consumers are increasingly turning their attention to the quality and origin of products that they consume. European Union (EU) quality schemes are associated with a label, which was introduced to allow consumers to perform an informed choice and to protect producers from unfair practices. This present study provides an overview of the last 25 years of EU quality schemes [Protected Designations of ...
agriculture; fertilizer rates; field experimentation; microirrigation; nitrapyrin; nitrification; nitrogen; nutrient use efficiency; phytomass; risk; soil; urea; urea nitrogen; urease; wheat
Abstract:
... BACKGROUND: Nitrification inhibitors (NIs) and urease inhibitors (UIs) can decrease the risk of nitrogen (N) loss and extend N uptake by plants. However, there are few case studies about reduced N application combined with double inhibitors (DIs, NI plus UI), especially under drip irrigation systems. A 2‐year field experiment was therefore conducted to explore the effect of 80% N application rate ...
chicken meat; breast muscle; marinating; sodium chloride; sodium tripolyphosphate; pyrophosphates; agitation; hydrolysis; pH; acidity; phosphorus; nuclear magnetic resonance spectroscopy
Abstract:
... The hydrolysis of several commercially used phosphates was studied in chicken breast meat marinated and tumbled in 70 g kg-1 NaCl and 12 g kg-1 of either disodium pyrophosphate (DSPP), tetrasodium pyrophosphate (TSPP), tetrapotassium pyrophosphate (TKPP), sodium tripolyphosphate (STPP) or glass phosphate. After treatment, intact muscle was ground in the presence of EDTA-Na2 to prevent further enzy ...
Mangifera indica; agriculture; color; electrolyte leakage; evolution; flavor; fruit peels; fruit quality; fruit texture; fruits; mangoes; metabolism; metabolites; micro-computed tomography; microstructure; monoterpenoids; odors; porosity; respiratory quotient; texture
Abstract:
... BACKGROUND: The ripening of mango involves changes in texture, flavor, and color, affecting the quality of the fruit. Previous studies have investigated the physiology on the evolution of quality during ripening but only a few have looked at microstructural changes during ripening. None of them has provided an insight into the relationhip between 3‐D microstructure and the evolution of quality dur ...
... BACKGROUND: Most countries have banned the use of 4,4′‐dichlorodiphenyltrichloroethane (DDT). However, owing to its extremely high lipophilic characteristics, DDT and its metabolite 4,4′‐dichlorodiphenyldichloroethylene (DDE) are ubiquitous in the environment and in many types of food. The positive correlation between exposure to insecticides, including DDT and DDE, and weight gain, resulting in i ...
... BACKGROUND: Antrodia cinnamomea is known for its antihepatoma activity, yet the identity of its active compound was unclear. In this study, a 5-ton fermenter was used to prepare sufficient mycelium of A. cinnamomea for active compound isolation and identification.RESULTS: Using antiproliferative activity toward HepG2 cells as guidance in the isolation process, 4-acetylantroquinonol B was purified ...
... BACKGROUND: Chlorogenic acids (CGAs) are widely distributed in plant material, including foods and beverages. 5‐Caffeoylquinic acid (5‐CQA) is the most studied CGA, but the mechanism of its hypolipidaemic effect remains unclear. This study aimed to determine the effect of 5‐CQA on lipid metabolism in the liver of Sprague–Dawley rats fed a high‐fat diet (HFD). RESULTS: 5‐CQA suppressed HFD‐induced ...
... BACKGROUND: Brown algae have been used for their nutritional value as well as a source of bioactive compounds with antioxidant, anti‐inflammatory, antimicrobial and anti‐obesity effects. Obesity is an important condition implicated in various diseases, including diabetes, hypertension, dyslipidemia and coronary heart disease. However, anti‐obesity effects of Eisenia bicyclis remain unknown. RESULT ...
... BACKGROUND: 6‐Benzylaminopurine (6‐BA) has a close relationship with the stress resistance of plants. Little research has been carried out on the effects of 6‐BA on the cold resistance of postharvest fruits and vegetables. Therefore the aim of the present study was to evaluate the effects of 6‐BA on chilling injury (CI), antioxidant system and energy status in cucumber during storage. RESULTS: The ...
... BACKGROUND: To reduce herbicide use by 75%, integrated use of sorghum and sunflower extracts each at 18 L ha⁻¹ combined with 1/4th (75% less) of label rates of four herbicides (mesosulfuron + idosulfuron, metribuzin, phenoxaprop-p-ethyl and isoproturon) were investigated for the management of wild oat and canary grass, the two pernicious weeds in wheat fields worldwide.RESULTS: The results reveale ...
... The 9‐point hedonic scale has been used routinely in food science, the same way for 60 years. Now, with advances in technology, data from the scale are being used for more and more complex programs for statistical analysis and modeling. Accordingly, it is worth reconsidering the presentation protocols and the analyses associated with the scale, as well as some alternatives. How the brain generates ...
gas production (biological); 1-aminocyclopropane-1-carboxylic acid; pears; oxygenases; enzyme activity; cold storage; carbon dioxide; postharvest physiology; calcium chloride; ethylene production; chemical composition
Abstract:
... Ethylene biosynthesis and respiration in untreated and in calcium-treated Passe-Crassane pear fruits during cold storage and during ripening at 20 degrees C after removal from storage at 2 degrees C was studied. Results suggest that the increase in ACC oxidase activity along with free-ACC availability for enzyme action is the most important limiting factor in the capacity of these fruits to produc ...
... BACKGROUND: To fulfil consumers' requirements for food traceability, it is necessary to have effective tools to differentiate food products according to their origin. The aim of the study was to identify a limited number of physico-chemical measurements that could differentiate rabbit meat from three different rearing systems: standard production system or a high quality norm system or a very low ...
... BACKGROUND: The effects of cluster thinning (TH) on Verdejo wine composition were studied. Cluster thinning was applied in three water regimes (WR) (R0, rainfed control; R25, drip‐irrigated at 25% ETo, and R50, drip‐irrigated at 50% ETo) during the 2012–2014 seasons. RESULTS: Cluster thinning advanced grape maturity, although this was only significant in 2012. A significant effect of TH on R0 was ...
... The possible role of abscisic acid (ABA) and peel colour in chilling tolerance of 'Fortune' mandarins has been examined. Fruit stored at 2.5 degrees C, but not at 12 degrees C, showed pitting damage. The degree of damage changed considerably during development and maturity from November until May. Green fruit were more tolerant to chilling injury (CI). After colour break, chilling susceptibility i ...
... BACKGROUND: There are some studies to show that food‐derived plant microRNAs (miRNAs) may be detected in mammals. The research evidence has provoked a considerable debate whether plant‐derived miRNAs exert the same regulatory functions as endogenous animal miRNAs. To test the hypothesis, methods of highly sensitive absolute quantification miRNAs have been developed. However, absolute miRNA quantif ...
... BACKGROUND: The general use of food irradiation requires reliable identification methods as well as extensive quality characterization. Shiitake (Lentinus edodes) mushrooms, packed in polystyrene trays and covered with polyvinylchloride film, were investigated for dose‐dependent identification and quality characterization upon gamma irradiation (0, 1, 2, and 3 kGy). RESULTS: Thermoluminescence (TL ...
... BACKGROUND: The mechanisms of calcium (Ca) absorption and transport in plants are still poorly understood. This study focused on assessing the absorption and distribution of Ca in different plant organs after root (soil), foliar, or fruit application to 6‐year‐old ‘Clemenules’ mandarin trees, grown in pots, using ⁴⁵Ca as a tracer. RESULTS: The rate of ⁴⁵Ca absorption and transportation in plant ti ...
... BACKGROUND: Apple skins are a rich source of flavonols, in particular quercetin (Q) glycosides. The objective of the present study was to investigate the presence of Q metabolites in plasma, various tissues, and excreta when the commercial broiler chicken's diet was supplemented with Q (0, 50, 150, 300, or 600 mg kg⁻¹ body weight per day), an apple skin extract (ASE; 50, 150 mg total phenolics kg⁻ ...
... Rats were meal-fed a semi-synthetic diet, with or without quercetin 3-O-glucoside (Q3G; 100 mg per meal) and groups of three were killed either fasting, or at 2, 5 and 24 post-feeding. Flavonoids and their metabolites in the diet, stomach contents, small intestinal lumen and mucosa, caecal contents and plasma were determined by LC/MS. Q3G was not hydrolysed in the stomach, but deglycosylation and ...
... BACKGROUND: There is a restricted knowledge about the potential impact of the use of different wood chip species on the rosé wine aging process. Thus, the aim of this work was to evaluate the general phenolic parameters, aroma composition and sensory profile of rosé wines during a short maturation (20 aging days) in contact with wood chips from oak, acacia and cherry. In addition, the different wo ...
Ctenopharyngodon idella; detection limit; eel; flame retardants; frogs; hexane; high performance liquid chromatography; shrimp; solvents; standard deviation; tandem mass spectrometry; temperature
Abstract:
... BACKGROUND: A new method based on accelerated solvent extraction was developed for the extraction and determination of 11 organophosphorus flame retardants by using a high‐performance liquid chromatography–tandem mass spectrometry technique. RESULTS: After optimization of the extraction temperature (80 °C), the extraction solvent (n‐hexane), the flush volume (40%) and the static extraction time (4 ...
... The possibility of predicting the shelf-life of pasteurized carrot juice by isothermal microcalorimetry or change in pH was investigated and compared with traditional plate count results. A small increase in thermal power (2 microwatt), maximal increase of and acceleration of thermal power all gave rapid, well-correlated results for the shelf-life, as did pH, during accelerated storage. The effect ...
... BACKGROUND: Aged pork fat, deeply oxidized pork fat soaked in basic liquor for more than half a year, is an important material in producing Chi‐aroma Baijiu (CAB). With the expansion of production scale of CAB, innovative strategies for efficient production of aged pork fat are in great demand. The purpose of this study is to accelerate the lipid oxidation of pork fat and improve the productivity ...
... BACKGROUND: Almonds are an important crop in California, and increased yields necessitate that dried in‐hull almonds are stored in the field for longer periods, increasing the potential for postharvest moisture exposure (e.g., rain, fog). Processors are increasingly drying these ‘wet’ almonds to a moisture content of <6% using low heat before the hulling and shelling process in order to reduce mec ...
... BACKGROUND: Consumption of dry beans has been relatively flat over the last decade. Creating new bean products may increase the consumption of beans and allow more consumers to obtain the health benefits of beans. In this study, pinto, navy and black beans were milled and the resulting flours extruded into puffs. Unflavored extruded puffs were evaluated by untrained panelists using a hedonic scale ...
Jessica de Oliveira Monteschio; Rodrigo Augusto Cortez Passetti; Kennyson Alves de Souza; Ana Guerrero; Laura Adriane de Moraes Pinto; Maribel Velandia Valero; Ana Carolina Pelaes Vital; José Carlos Silveira Osório; Ricardo de Araújo Castilho; Carlos Sañudo; Ivanor Nunes do Prado
... BACKGROUND: This study evaluated the acceptability (by sensorial and visual analyses) of meat from 40 Nellore heifers (finished in feedlots for 73 days) fed with different diets supplemented with essential oils (EOs) and an active principle blend. The five diets tested were: CON – a diet without essential oil and active principle blend (eugenol, thymol, and vanillin); ROS – a diet supplemented wit ...
... BACKGROUND: The aim of this work was to develop a puffed quinoa bar with beehive products of high content of phenolic compounds, based on acceptability and perception of consumers. A rotational central composite design of three variables (honey, pollen and propolis) was used for food product formulation. The responses to optimize were sensorial acceptability and polyphenol content. Next to accepta ...
... BACKGROUND: One of the problems in marketing fruit is to increase the share of fruits produced in sustainable agriculture to meet the expectation of ecology-oriented consumers. Acceptability of such fruits by the consumers is of paramount importance. The objective of this study was to explore the acceptability of three scab-resistant apple cultivars as compared with three popular conventional cult ...
... The effects of α-amylase treatment on physical properties, acceptability to mothers, and cost of roasted and extruded maize-beans-groundnuts-bambaranuts complementary porridge recipes were assessed prior to their industrial production. Storage stability of the extruded α-amylase-treated fortified blend was assessed at 2 weeks and 6 months by sensory evaluation, peroxide value, water activity and m ...
Leucaena magnifica; absorbance; anthocyanidins; butanol; computer software; hydrochloric acid; temperature
Abstract:
... Methods to account for the spectral interference of co-extractable compounds (blank correction) in the spectrophotometric analysis of both extractable and bound proanthocyanidin (PA) using the proanthocyanidin (butanol/HCl) assay were evaluated. Crude extractable and bound PA sample matrices of PA-free Leucaena magnifica were used. Extractable PA blanks generated in heated 95% butanol/5% H2O reage ...
... There is an urgent need for novel agronomic improvements capable of boosting crop yields while alleviating environmental impacts. One such approach is the use of optimized crop rotations. However, a set of measurements that can serve as guiding principles for the design of crop rotations is lacking. Crop rotations take advantage of niche complementarity, enabling the optimization of nutrient use a ...
... BACKGROUND: The elemental uptake and allocation patterns of crops create insight for nutrient management. Two‐year field experiments were conducted to determine the growth and nitrogen (N) uptake patterns of bitter gourd and to evaluate different N management strategies. Two N practices during the nursery stage, namely the conventional fertilizer method (Scon) and the controlled‐release fertilizer ...
Triticum aestivum; arid soils; bioaccumulation factor; bioavailability; cadmium; carbonates; crops; heavy metals; human food chain; lead; oases; plant tissues; polluted soils; roots; shoots; soil texture; wheat; China
Abstract:
... BACKGROUND: Crops grown in soils contaminated by heavy metals are an important avenue for toxic metals entering the human food chain. The objectives of our study were to investigate the accumulation and distribution of cadmium (Cd) and lead (Pb) in wheat plants cultivated in arid soils spiked with different doses of heavy metal, as well as bioavailability of these metals in the contaminated arid s ...