Adsorption Properties of <i>Lactobacillus </i>Peptidoglycan on Acrylamide

LIU Qingbo; ZHANG Dan; DONG Heliang; ZHAO Sijia; FENG Wenxiao; SHAO Meili

doi:10.13386/j.issn1002-0306.2020100087

Volume 42 Issue 13

Jun. 2021

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Science and Technology of Food Industry > 2021 > 42(13): 103-110. > DOI: 10.13386/j.issn1002-0306.2020100087

LIU Qingbo, ZHANG Dan, DONG Heliang, et al. Adsorption Properties of Lactobacillus Peptidoglycan on Acrylamide[J]. Science and Technology of Food Industry, 2021, 42(13): 103−110. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2020100087.

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Adsorption Properties of Lactobacillus Peptidoglycan on Acrylamide

1.
College of Food Science, Northeast Agricultural University, Harbin 150030, China
2.
Qiqihar Food and Drug Testing Center, Qiqihar 161006, China
3.
Heilongjiang Reclamation Area Quality and technical supervision, Inspection and Testing Center, Harbin 150030, China

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Received Date: October 13, 2020
Available Online: April 22, 2021

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Abstract

Abstract

Four strains of lactic acid bacteria peptidoglycan (PG) are used as biosorbent to study the adsorption characteristics of acrylamide (AA). The effects of different factors ( pH value, temperature, time, PG concentration, AA concentration and calcium ion concentration) and simulated gastrointestinal environment on the adsorption characteristics of AA were investigated by HPLC. The results showed that with the increase of pH value and temperature, the adsorption rate of four lactic acid bacteria PG for AA increased first and then decreased. When the pH value was 5 and the temperature was 37 ℃, the adsorption rate of PG by four lactic acid bacteria reached the maximum value, among which the PG adsorption rate of Lactobacillus plantarum 1.0665 was 87.35%. Within 6 h, the adsorption rate of PG by four strains of lactic acid bacteria increased significantly with the extension of time (P<0.05), but there was no change after 6 h .The results showed that the adsorption rate decreased with the increase of AA concentration, and increased with the increase of PG concentration and calcium concentration. In the simulated gastric environment, different pH values significantly affected the adsorption effect of PG on AA (P<0.05), and the adsorption rate of PG to AA was the highest when pH was 3.5, and the different time had no significant effect on the adsorption capacity of PG for AA (P>0.05). In the simulated intestinal environment, bile salt concentration and the adsorption time significantly affected by efficiency of PG to AA (P<0.05), and 0.3%~0.4% bile salt concentration was more conducive to the adsorption of AA by PG. In conclusion, this study laid a theoretical foundation for the study of the adsorption mechanism of lactic acid bacteria.
- lactic acid bacteria,
- peptidoglycan,
- acrylamide,
- adsorption properties,
- influencing factors,
- simulated gastrointestinal environment

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