Demei Meng

ORCID: 0000-0002-0113-8197
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About
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Research Areas
  • Proteins in Food Systems
  • Iron Metabolism and Disorders
  • Fungal Biology and Applications
  • Postharvest Quality and Shelf Life Management
  • Protein Hydrolysis and Bioactive Peptides
  • Polyamine Metabolism and Applications
  • Antimicrobial Peptides and Activities
  • Plant Stress Responses and Tolerance
  • Plant Gene Expression Analysis
  • Plant Micronutrient Interactions and Effects
  • Trace Elements in Health
  • Phytochemicals and Antioxidant Activities
  • Meat and Animal Product Quality
  • Food Chemistry and Fat Analysis
  • Biochemical and Structural Characterization
  • Algal biology and biofuel production
  • Plant-Microbe Interactions and Immunity
  • Plant Physiology and Cultivation Studies
  • Phytase and its Applications
  • Microbial Metabolites in Food Biotechnology
  • Plant Pathogens and Fungal Diseases
  • Food composition and properties
  • Pineapple and bromelain studies
  • Polysaccharides and Plant Cell Walls
  • Botanical Research and Applications

Tianjin University of Science and Technology
2016-2025

Minzu University of China
2024

Beijing Technology and Business University
2018-2021

Tianjin Institute of Pharmaceutical Research (China)
2016

China International Science and Technology Cooperation
2016

China Agricultural University
2011-2013

Tomato is one of the most important vegetable crops in world and a model plant used to study ripening climacteric fleshy fruit. During process tomato fruit, flavor aroma metabolites, color, texture hormones undergo significant changes. However, low temperatures delayed inhibiting compounds ethylene production. Metabolomics transcriptomics analyses fruit stored under temperature (LT, 5 °C) room (RT, 25 were carried out investigate effects storage on physiological changes after harvest. The...

10.1016/j.hpj.2021.09.001 article EN cc-by-nc-nd Horticultural Plant Journal 2021-09-21

The effects of methyl salicylate (MeSA) on chilling injury (CI) and gene expression levels, enzyme activities, metabolites related to arginine catabolism in cherry tomato fruit were investigated. Freshly harvested fruits treated with 0.05 mM MeSA vapor at 20 °C for 12 h then stored 2 up 28 days. reduced CI enhanced the accumulation putrescine, spermidine, spermine, which was associated increased levels activities arginase, decarboxylase, ornithine decarboxylase most sampling times. also...

10.1021/jf201812r article EN Journal of Agricultural and Food Chemistry 2011-07-26

Abstract BACKGROUND Postharvest diseases result in major losses fruits. Tomato is susceptible to postharvest rot caused by Botrytis cinerea and regarded as a good model system study disease quality deterioration fruit. To develop safe effective technique alleviate maintain fruit quality, the effects of methyl salicylate (MeSA) 1‐methylcyclopropene (1‐MCP) either separately or combined on gray mold B. tomato were investigated. RESULTS The results showed that application MeSA (0.05 mmol L −1 )...

10.1002/jsfa.8895 article EN Journal of the Science of Food and Agriculture 2018-01-20

The influence of methyl jasmonate (MeJA) on postharvest quality and enzyme activities, gene expression level, the functional component content linked to deterioration in Agaricus bisporus (J.E. Lange) Imbach fruit bodies was investigated. Freshly harvested were treated with 0 (control), 10 100 μM MeJA vapor at 20 °C for 12 h then stored up 7 days. results indicated that treatments maintained a high level soluble protein total sugar, delayed browning, promoted accumulation phenolics...

10.1021/jf3006454 article EN Journal of Agricultural and Food Chemistry 2012-05-10

A novel method for the purification of crude polysaccharide from fermentation broth pumpkin residues by macroporous resins was developed. Through static adsorption and desorption kinetic tests, six (AB-8, S-8, HPH480, HPD100, X-5, D101) with different polarity, diameter, surface area were studied simultaneous decoloration deproteinization polysaccharide, S-8 chosen as best one. Dynamic breakthrough tests performed in a glass column packed resin, resulting ratios pigment protein 84.3% 75.9%...

10.1021/jf3031315 article EN Journal of Agricultural and Food Chemistry 2012-08-06

The effects of l-arginine (Arg, 1 mM) and/or methyl salicylate (MeSA, 0.05 treatment on gray mold caused by Botrytis cinerea in tomato fruit were studied. Results indicated that Arg or MeSA alleviated the incidence and severity disease B. cinerea, both (Arg + MeSA) further inhibited development decay. Treatment with not only enhanced activities superoxide dismutase, catalase, peroxidase but also promoted expression levels pathogenesis-related protein gene defense-related enzymes...

10.1021/acs.jafc.7b00395 article EN Journal of Agricultural and Food Chemistry 2017-05-24

The 8 nm diameter cavity endows the ferritin cage with a natural space to encapsulate food components. In this work, urea was explored as novel medium facilitate formation of ferritin-polyphenol co-assemblies. Results indicated that (20 mM) could expand 4-fold channel size apo-red bean (apoRBF) an increased initial iron release rate υ0 (0.22 ± 0.02 μM min-1) and decreased α-helix content (5.6%). Moreover, permeation EGCG into apoRBF without destroying structure thus form ferritin-EGCG...

10.1021/acs.jafc.6b04671 article EN Journal of Agricultural and Food Chemistry 2017-02-04
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