Disappearance of immunoreactive glycinin and beta-conglycinin in the digestive tract of piglets

文献类型: 外文期刊

第一作者: Zhao, Yuan

作者: Zhao, Yuan;Qin, Guixin;Sun, Zewei;Bao, Nan;Wang, Tao;Zhang, Bing;Zhang, Bolin;Zhu, Dan;Sun, Ling;Zhang, Xiaodong

作者机构:

关键词: glycinin;beta-conglycinin;digestion;disappearance;piglets

期刊名称:ARCHIVES OF ANIMAL NUTRITION ( 影响因子:2.242; 五年影响因子:2.601 )

ISSN: 1745-039X

年卷期: 2008 年 62 卷 4 期

页码:

收录情况: SCI

摘要: Soybean allergy represents a health threat to human and animals. Glycinin and beta-conglycinin, the main storage proteins in soybean, have been identified as major food/feed allergens. The present study was conducted to investigate the disappearance of immunoreactive glycinin and beta-conglycinin in the digestive processes of piglets. Twelve crossbred piglets, weaned at 21 days of age, were allocated to three dietary treatments in a complete block design, each treatment with four replicates (female/male=1:1). From day 22-28, the control group was fed diets without leguminous products, while the two treatment groups received diets containing 2.2% purified glycinin or beta-conglycinin. All piglets were slaughtered at 29 days of age and digesta was sampled from stomach, middle jejunum, caecum and colon. Results indicated that immunoreactive glycinin and beta-conglycinin decreased as the digesta descended down the digestive tract to 0.12% and 0.47%, respectively. Little immunoreactive glycinin was found in the digesta of caecum and colon, while immunoreactive beta-conglycinin was detected in the colon. Along the whole digestive tract the disappearance of immunoreactive glycinin was significantly higher than beta-conglycinin (p < 0.05).

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