成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> journal list >> Food Chemistry >>article
Food Chemistry

Food Chemistry

IF: 8.5
Download PDF

Protein degradation mechanisms during refrigerated storage of gazami crab (Portunus trituberculatus) at endogenous and microbial-derived enzyme levels

Published:10 December 2024 DOI: 10.1016/j.foodchem.2024.142449
Yanmei Ren, Jianan Sun, Xiangzhao Mao

Abstract

During storage, the proteins of gazami crab (Portunus trituberculatus) are prone to hydrolysis into amino acids and biogenic amines, in which enzymes play a critical role. However, studies exploring spoilage mechanisms from the perspective of enzymes are limited. This study identified 84 endogenous and 52 microbial-derived proteolytic enzymes and peptidases by proteomics and metagenomics. There are 8 endogenous amino acid deaminases, primarily degrade glutamate and aspartate. Additionally, 25 amino acid deaminases of microbial origin were identified, which mainly degrade serine. The formation of biogenic amines involved 14 enzymes, all of which were microbial in origin, primarily synthesizing putrescine from arginine. The main microbial contributors to these enzymes were Shewanella, Vibrio, and Aliivibrio, accounting for 63.87?%, 15.51?%, and 8.69?% at the end of refrigeration, respectively. This study provides insights into the mechanisms of quality deterioration in gazami crab during refrigeration, from the perspectives of metabolic enzymes and microbial activity.

Substances (2)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Maleic acid 110-16-7 C4H4O4 839 suppliers $10.00-$2720.00
Bovine albumin 9048-46-8 N/A 506 suppliers $15.00-$17060.00

Similar articles

IF:4.2

Semax, an analogue of adrenocorticotropin (4–10), binds specifically and increases levels of brain-derived neurotrophic factor protein in rat basal forebrain

Journal of Neurochemistry Oleg V. Dolotov, Ekaterina A. Karpenko,etc Published: 30 January 2006
IF:2.5

Maternal and Fetal Circulating Levels of Thymosin α1 During Parturition

American Journal of Reproductive Immunology ROBERT A. WELCH, MILTON G. MUTCHNICK,etc Published: 1 April 1987
IF:13.3

Constructing bone organoids based on endochondral ossification model via endogenous enzyme-induced mineralization

Chemical Engineering Journal Li Dong, Weiguo Chen,etc Published: 22 November 2024