Identification and antioxidant activities of chickpea albumin peptides and their fractions following fermentation by Bifidobacterium animalis subsp. lactis BB-12
Hanluo Li , Peihao Gao , Zhihua Peng , Linda Liu , Yang Xu , Seockmo Ku , Mengzhou Zhou , Sini Kang
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引用次数: 0
Abstract
Chickpea albumin has rich contents of essential amino acids, high protein bioavailability and pronounced antioxidant activity. As reported previously, chickpea albumin peptides (CAP) significantly increased the abundance of Bifidobacterium during the in vitro fecal fermentation. However, the mutual relationship between CAP and Bifidobacterium growth remains unclear. In this study, peptide sequences in CAP were identified by LC-MS/MS, and CAP fractions (F1, F2, and F3) were further separated by Sephadex G-15 chromatography. Moreover, F3 most significantly promoted the growth of Bifidobacterium animalis subsp. lactis BB-12 (BB-12), and 66 peptides were newly generated after the 24-h fermentation. The abundance of potential antioxidant peptides predicted by the UniDL4BioPep model was approximately 71.43%, which explained the enhancement of F3 antioxidant activities after fermentation by BB-12. These findings indicated that F3, which shows strong antioxidant and prebiotic effects, can be utilized for functional foods or additives for industrial production of Bifidobacterium.
期刊介绍:
LWT - Food Science and Technology is an international journal that publishes innovative papers in the fields of food chemistry, biochemistry, microbiology, technology and nutrition. The work described should be innovative either in the approach or in the methods used. The significance of the results either for the science community or for the food industry must also be specified. Contributions written in English are welcomed in the form of review articles, short reviews, research papers, and research notes. Papers featuring animal trials and cell cultures are outside the scope of the journal and will not be considered for publication.