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qualitycontrol, etc ; acidity; fluorescence; fluorescence emission spectroscopy; instrumentation; olive oil; peroxide value; Show all 7 Subjects
Abstract:
... One of the main challenges for olive oil producers is the ability to assess oil quality regularly during the production cycle. The quality of olive oil is evaluated through a series of parameters that can be determined, up to now, only through multiple chemical analysis techniques. This requires samples to be sent to approved laboratories, making the quality control an expensive, time-consuming pr ...
qualitycontrol, etc ; durability; gel chromatography; heat; mass spectrometry; molecular weight; polymers; quantitative analysis; stabilizers; Show all 9 Subjects
Abstract:
... Tinuvin 622, an oligomeric light stabilizer, is widely used in plastics to reduce light and heat induced degradation and extend their service life, therefore its detection is of great importance for quality control of plastic products. However, the classical analytical methods of Tinuvin 622, such as chromatography and mass spectrometry, are difficult to achieve direct qualitative and quantitative ...
qualitycontrol, etc ; European Union; campesterol; consumer demand; food safety; fraud; olive oil; olives; prediction; product quality; Spain; Show all 11 Subjects
Abstract:
... The growing consumer demand for varietal olive oils of differentiated properties necessitates implementing systematic procedures and tools that serve to detect fraud or alterations. The olive variety is, furthermore, a factor that guarantees and certifies an oil belongs to one of the registered geographical indications established in the European Union. The aim of this work was, by means of deploy ...
qualitycontrol, etc ; beverage industry; calibration; green tea; least squares; models; prediction; rapid methods; spectral analysis; spectroscopy; water content; Show all 11 Subjects
Abstract:
... Fixation is the key step of green tea processing, usually with moisture content as the quality evaluation indicator. Near-infrared (NIR) spectroscopy has been widely used in tea moisture detection but is mostly realized in the laboratory, and online detection in tea processing is limited. This study explores the possibility of calibration transfer from lab-based hyperspectral imaging (HSI) to onli ...
... Chiral analysis of food components can provide important information for food quality, bioactivity and safety. Determination of enantiomeric ratios in food is a tedious task, due to the poor resolution and insufficient sensitivity for simultaneous discrimination and quantification of trace amounts of d-form metabolites. Herein, a high-throughput, high-sensitive and high-resolution method was devel ...
qualitycontrol, etc ; Cyclopia genistoides; Cyclopia subternata; data collection; factor analysis; flavor; food quality; industry; odors; palate; principal component analysis; sensory evaluation; Show all 12 Subjects
Abstract:
... Rapid sensory profiling of a product over time presents a challenge in quality control, particularly when the product has a complex aroma and flavour profile. Polarized sensory positioning (PSP), based on the comparison of samples to fixed references, allows for rapid sensory profiling and data collection across multiple sessions. The efficacy of partial and global PSP for broad-based sensory prof ...
... Icariin, the most effective bioactive component in Epimedium, is also the index component of Epimedium quality control in Pharmacopoeia. It was a very attractive approach for bioconversion from epimedin C to icariin. However, its potential was impeded by poor stability and non-recyclable properties of free enzymes. In this study, we have fused the linker (4LP) to α-L-rhamnosidase BtRha and success ...
... Butteroil is valuable product appreciated for its sensory characteristics, economic importance, and social/cultural significance, as it has similarities in several regions of the world. Due to its high added value, this product is susceptible to adulteration by replacing authentic butteroil with other cheaper fats, or even by expired butteroil. Detection of butteroil adulteration demands chemical ...
qualitycontrol, etc ; food composition; food quality; multivariate analysis; prediction; principal component analysis; protected designation of origin; provenance; rice; stable isotopes; variance; Mali; Show all 12 Subjects
Abstract:
... Rice geographic authentication has become an important issue in promoting food quality assurance and protection of consumer rights. Thai Hom Mali (THM) rice cultivated inside the Thung Kula Rong-Hai Plain is registered under the European Protected Geographical Indication (PGI). Stable isotope ratio (δ¹³C, δ¹⁵N, and δ¹⁸O) fingerprinting of THM rice cultivated inside (PGI) and outside (non-PGI) the ...
... In this study, we report the development of versatile and cost-effective analytical approaches for analysis and quality control of different nutraceutical and tonic products, using capillary electrophoresis (CE) coupled with contactless conductivity detection (C⁴D). Insights into CE-C⁴D instrumental designs that are adapted to the context in developing countries are provided. A highlight was made ...
qualitycontrol, etc ; ambient temperature; carotenoids; cold storage; cold tolerance; food safety; fruit quality; lipid peroxidation; lipid peroxides; lipophilicity; malondialdehyde; mesocarp; vitamin E; Show all 13 Subjects
Abstract:
... Avocados are prone to chilling injury disorders when stored at low temperatures. Although most studies have been performed in the worldwide distributed ‘Hass’ variety, other less exploited commercial varieties such as ‘Bacon’ might be more cold-tolerant. Aiming at evaluating how cold storage influences chilling injury, the extent of lipid peroxidation and the contents of lipophilic antioxidants we ...
qualitycontrol, etc ; Escherichia coli; Scutellaria baicalensis; active ingredients; anti-inflammatory activity; anticoagulants; apigenin; baicalin; bioactive compounds; coagulation; eugenol; herbal medicines; palmitic acid; pharmacodynamics; traditional medicine; Show all 15 Subjects
Abstract:
... Bioactive substance identification is always the focal point and the main challenge in Chinese herbal medicine (CHM). Most CHM present multiple efficacies and multiple tropisms, which has improved the application accuracy of CHM, and is worthy of further study. In this article, the concept of “multi-tropism efficacy of CHM” has been proposed for the first time. In addition, it is hypothesized that ...
... To characterize the involvement of microorganisms in amino acid degradation and fish quality deterioration, three major grass carp spoilage bacteria were artificially inoculated in amino acid solutions (in-vitro) and grass carp flesh (in-situ). Results showed that Pseudomonas putida largely degraded free amino acids and produced 3.78 mM/100 g ammonia in grass carp flesh, relying on its high amino ...
... A cost-effective, highly selective and sensitive paper-based potentiometric combined sensor for losartan potassium drug (LOS) is fabricated, characterized and used for the drug monitoring. The sensor consists of 2 strips of filter paper (20 × 5 mm each) as platform, each imprinted with 4 mm diameter circular spot of carbon. One carbon spot is covered by a reduced graphene oxide (rGO) for use as a ...
qualitycontrol, etc ; Scorpiones; Swertia chirayita; antimalarials; antioxidants; chemical constituents of plants; diabetes; fever; flavonoids; heart; indigenous peoples; jaundice; malaria; medicinal plants; metabolites; pharmacology; secoiridoids; spectroscopy; structure-activity relationships; therapeutics; toxicity; toxicology; traditional medicine; xanthones; Show all 24 Subjects
Abstract:
... Swertia chirayita (Roxb.) H. Karst. is a traditionally used, well-recognized medicinal plant of the family Gentianaceae with significant therapeutic potential. It has been traditionally used to cure various ailments such as fever, vomiting, jaundice, digestive disorders, heart diseases, diabetes, malaria, scorpion bite, and skin diseases. The present review emphasized the traditional uses, phytoch ...
Thania Medrano-Mendoza; Baltasar F. García; Alejandra Caballero-Zamora; José M. Yáñez; Leobardo Montoya-Rodríguez; Juan C. Quintana-Casares; Marina Durán-Aguilar; Gabriel R. Campos-Montes
qualitycontrol, etc ; DNA-directed RNA polymerase; Litopenaeus vannamei; White spot syndrome virus; aquaculture; arylsulfatase; chromosomes; death; genetic variance; genetic variation; genome-wide association study; genotyping; hepatopancreas; humoral immunity; immune response; linkage disequilibrium; marker-assisted selection; necrotizing hepatopancreatitis; oxidoreductases; population structure; principal component analysis; Ecuador; Panama; Show all 23 Subjects
Abstract:
... The objectives of this research were to assess the genetic diversity, population structure, linkage disequilibrium and perform a genome-wide association study (GWAS) to search for single nucleotide polymorphisms (SNPs) that associate with the resistance of Pacific white shrimp (Litopenaeus vannamei) to White Spot Syndrome Virus (WSSV). The line here analyzed was formerly founded with animals origi ...
Sonya Neal; Fumiaki Ohtake; Ana Maria Cuervo; Ramanujan S. Hegde; Ursula Jakob; Michael Lazarou; Wendy V. Gilbert; Zhijian J. Chen; Sharon A. Tooze; James E. Haber; Kylie J. Walters; F. Ulrich Hartl
... We asked experts from different fields—from genome maintenance and proteostasis to organelle degradation via ubiquitin and autophagy—“What does quality control mean to you?” Despite their diverse backgrounds, they converge on and discuss the importance of continuous quality control at all levels, context, communication, timing, decisions on whether to repair or remove, and the significance of dysr ...
... We describe our reliable methodology for fabricating a complex programmable microvalve array (PMA) and its integration with a glass microcapillary electrophoresis chip. This methodology is applicable to any device that requires multilayered PDMS, multiple alignment processes, selective PDMS bonding, and multilayered integration with downstream sensing systems. Along with the detailed step-by-step ...
... In this study, the processing behavior of pre-impregnated fabrics (prepregs) for the fabrication of ceramic matrix composites (CMC), specifically oxide fiber composites (OFC), was investigated. The evaluation of rheological slurry properties alone proved to be insufficient for the assessment of their suitability for the cold roll lamination process used in this work. Therefore, a novel testing met ...
... It is well established that mRNA steady‐state levels do not directly correlate with transcription rate. This is attributed to the multiple post‐transcriptional mechanisms, which control both mRNA turnover and translation within eukaryotic cells. One such mechanism is the removal of the 5’ end cap structure of RNAs (decapping). This 5’ cap plays a fundamental role in cellular functions related to m ...