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Effect of gastrointestinal alterations mimicking elderly conditions on in vitro digestion of meat and soy proteins

Food chemistry. 2022-02; 
Chong Wang, Fan Zhao, Yun Bai, Chunbao Li, Xinglian Xu, Karsten Kristiansen, Guanghong Zhou
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Nucleic Acid Purification & Analysis Proteins in the digesta were separated and quantified by SDS-PAGE using a 4-20% precast gel(Genscript, Piscataway, USA). Get A Quote

摘要

Among the physiological functions declining with aging, decreased secretion of gastric fluid, achlorhydria, is commonly observed. We evaluated the digestion of meat (chicken, beef, and pork) and soy proteins using in vitro conditions mimicking gastrointestinal (GI) digestion in adults (control, C) and elderly individuals with achlorhydria (EA). Changes in degrees of hydrolysis (DH), SDS-PAGE profiles, peptide concentrations, and proteomic profiles during digestion were investigated. Digestion under the EA conditions markedly decreased DH, especially for soy proteins. SDS-PAGE profiling and proteomics showed that myofibrillar/sarcoplasmic proteins from meat and glycinin/beta-conglycinin from soy were most... More

关键词

Elderly; Protein sources; In vitro digestion; Digestibility; Proteomics