title: In vivo digestive stability of soybean β-conglycinin β-subunit in WZS minipigs.
abstract: By now, the digestive stability experiments provided by most authoritative organizations are in vitro tests. Evaluating the protein digestive stability with in vivo models should be more objective. The present study aimed to verify the in vivo digestibility of soybean β-conglycinin β-subunit in Wuzhishan (WZS) minipigs. Three minipigs were surgically fitted with O-stomach and T-ileum cannulae and fed with soybean meals. According to SDS-PAGE, the 50 kD fraction of soybean β-conglycinin β-subunit persisted in the gastric fluid until 6 h after feeding, which was detected at 3 h and clearly visible at 4-6 h in the intestinal fluid. Western blot with anti-β-conglycinin β-subunit McAb confirmed it.
authors.affiliation: Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, Guangdong China; Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
authors.forename: Hai Bin
authors.initials: HB
authors.lastname: Xu
authors.affiliation: Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Yu
authors.affiliation: Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Liu
authors.affiliation: Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Gao
mesh_terms: D000818:Animals; D052179:Antigens, Plant / Q000737:chemistry* / Q000378:metabolism; D004063:Digestion / Q000502:physiology*; D005916:Globulins / Q000737:chemistry* / Q000378:metabolism; D008297:Male; D021122:Protein Subunits / Q000737:chemistry / Q000378:metabolism*; D055314:Seed Storage Proteins / Q000737:chemistry* / Q000378:metabolism; D030262:Soybean Proteins / Q000737:chemistry* / Q000378:metabolism; D013552:Swine; D013556:Swine, Miniature / Q000502:physiology*
chemical_list: D052179:Antigens, Plant; D005916:Globulins; D021122:Protein Subunits; D055314:Seed Storage Proteins; D030262:Soybean Proteins; C013894:beta-conglycinin protein, Glycine max