Premium
Screening of Bifidobacterium strains to bind with Benzo[a]pyrene under food stress factors and the mechanism of the process
Author(s) -
Shoukat Sana,
Aslam Muhammad Zohaib,
Rehman Abdul,
Zhang Bolin
Publication year - 2019
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.13956
Subject(s) - bifidobacterium , probiotic , food science , pyrene , bacteria , lactic acid , chemistry , benzo(a)pyrene , biochemistry , fermentation , microbiology and biotechnology , biology , carcinogen , lactobacillus , organic chemistry , genetics
The ability of Bifidobacterium strains to bind with Benzo[a]pyrene in foods, feeds, digestive tract, and environment can decrease the toxic effects of B[a]p on humans and farm animals. In this study, nine Bifidobacterium strains were tested for their ability to binding with B[a]p. Bifidobacterium lactis BI‐04, HN019, and Bifidobacterium infantis BY12 showed highest binding rate with B[a]p. Moreover, the effect of different food stress factors (acid, detergent, oxidative, alkaline, enzymatic, osmotic, and heat) was also evaluated on the binding rate of B[a]p. Positive correlations were observed for acid, and TCA (Trichloracetic acid) stress, while heat stress showed that the viability of bacteria cells was not significant for binding. The mechanisms behind the effect of each stress factor on binding ability were also discussed. These results revealed the importance of cell technological resistance as different factors could significantly affect the performance of the probiotic strains. Practical applications Benzo[a]pyrene is recognized as one of the most potent carcinogens and found in a wide variety of foods, especially smoked, fried, and roasted foods. Therefore, it is crucial to find a safe method in order to remove B[a]p. Bifidobacterium is the most important lactic acid bacteria found in the human intestine and are well known to have many important nutritional and therapeutic benefits. Bifidobacterium, due to their Generally Recognized as Safe status and use as probiotics, is nonpathogenic and without generating toxic residues, making Bifidobacterium strains feasible to use in detoxification method. In this study, the selected Bifidobacterium strains were found highly efficient in the removal of B[a]p.