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Prediction of black tea fermentation quality indices using NIRS and nonlinear tools
Springer Science and Business Media LLC - Tập 26 - Trang 853-860 - 2017
Catechin content, the ratio of tea polyphenols and free amino acids (TP/FAA), as well as the ratio of theaflavins and thearubigins (TFs/TRs) are important biochemical indicators to evaluate fermentation quality. To achieve rapid determination of such biochemical indicators, synergy interval partial least square and extreme learning machine combined with an adaptive boosting algorithm, Si-ELM-AdaBo......
Classification and fatty acid composition analysis of Cronobacter spp. isolated from powdered infant formula in China
Springer Science and Business Media LLC - Tập 25 - Trang 1109-1113 - 2016
This study aimed to classify a collection of Enterobacter sakazakii (E. sakazakii) strains previously identified from powdered infant formula (PIF) to species level by recN gene sequencing and biochemical testing to determine the distribution of Cronobacter species in China and investigate the strain diversity by cellular fatty acid (CFA) analysis. Of 24 E. sakazakii isolates, 23 were identified a......
The effects of extracting procedures on occurrence of polycyclic aromatic hydrocarbons in edible oils
Springer Science and Business Media LLC - Tập 29 - Trang 1181-1186 - 2020
Polycyclic aromatic hydrocarbons (PAHs) are one of the most hazardous naturally occurring chemical contaminants of food. Edible oils are easily contaminated by PAHs generated during high-temperature processing steps such as oil extraction and refining. In this study, the effects of different extraction methods on the levels of PAHs in sesame oils and red pepper seed oils were assessed. GC–MS was u......
Analysis of chemical compounds and toxicological evaluation of Forsythia suspensa leaves tea
Springer Science and Business Media LLC - Tập 30 - Trang 305-314 - 2021
To determine the compositions of Forsythia suspensa leaves tea (FSLT) and its safety, the chemical compounds were analysed with some methods, and the toxicity was evaluated in Kunming mice and Wistar rats. The results showed that FSLT contained rich flavonoid, lignans, triperpene acids, amino acids, and mineral elements. In the acute toxicity study, none of the mice died, and no obvious poisoning ......
Protective effect of rutin against ultraviolet b-induced cyclooxygenase-2 expression in mouse epidermal cells
Springer Science and Business Media LLC - Tập 22 - Trang 1-6 - 2013
Cyclooxygenase-2 (COX-2) is a major mediator of inflammation and increases carcinogenesis, and it has been reported to play a pivotal role in UVB-mediated skin carcinogenesis. Rutin (3-rhamnosyl-glucosyl quercetin) is found in numerous fruits and vegetables, especially buckwheat. Previous studies indicated that rutin has antioxidant, anti-inflammatory, and anti-carcinogenic activities both in vitr......
Visual detection of biogenic monoamines based on amine oxidase–peroxidase coupling reaction using ascorbic acid as H2O2 scavenger
Springer Science and Business Media LLC - - 2024
This study represents a visual detection for total biogenic monoamines with naked eye as a simple and rapid semi-quantitative method for biogenic amine monitoring. The equivalent reaction of H2O2 with ascorbic acid resulted in color development by an amine oxidase–peroxidase coupling reaction in the samples containing the biogenic monoamines higher than the subjected ascorbic acid by 10 μM. Upon e......
Decontamination of chokeberries (Aronia melanocarpa L.) by cold plasma treatment and its effects on biochemical composition and storage quality of their corresponding juices
Springer Science and Business Media LLC - - 2021
Effect of a post-packaging pasteurization process on inactivation of a Listeria innocua surrogate in meat products
Springer Science and Business Media LLC - Tập 23 - Trang 1477-1481 - 2014
Effects of surface pasteurization on inactivation of Listeria innocua were investigated. Surface temperature, monitored during post-packaging pasteurization, was used to predict the lethality of L. monocytogenes. Temperatures reached 70°C for lean and fat sausages within 9 min of treatment. An inoculation study validated the efficacy of post-processing and the thermal lethality of L. monocytogenes......
Probiotic and immunostimulating effects of live and heat-killed Pediococcus pentosaceus TAP041
Springer Science and Business Media LLC - - 2024
The selected strain, TAP041, showing an excellent ability to reduce the glyoxal and methylglyoxal levels, was identified by 16S rRNA gene-based phylogenetic analysis as Pediococcus pentosaceus. It demonstrated probiotic properties, including acid, bile salt, pancreatin, lysozyme tolerance, gut adhesion, and auto/coaggregation. In RAW264.7 macrophages, both live and heat-killed strains induced nitr......
GC–MS based metabolomics study of fermented stipe of Sparassis crispa
Springer Science and Business Media LLC - Tập 27 - Trang 1111-1118 - 2018
GC–MS coupled with multivariate statistical analysis was performed to understand metabolites difference between pileus and stipe of Sparassis crispa (cauliflower mushroom). Metabolic changes of S. crispa after fermentation by different microorganisms were also investigated. PCA score plot showed a clear separation between pileus and stipe of S. crispa regardless of fermentation. However, OPLS-DA s......
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