期刊
JOURNAL OF FUNCTIONAL FOODS
卷 79, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jff.2021.104395
关键词
LimosiLactobacillus fermentum PCC; Pectins; Caco-2 cells; Adhesion; Tight junction
资金
- Royal Thai Government Scholarship
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2016/20336-1]
- Danish Council for Strategic Research (DSR, project BioSyn) [3050-00005B]
The study found that citrus pectins with high and moderate degrees of esterification can enhance adhesion of L. fermentum PCC, while those with low DE can reduce it. Combining with pectins significantly increased TEER, indicating a synergistic action of bacteria and pectins that contributes to the health of the epithelial barrier.
This study investigated the effect of four citrus pectins on adhesion of the probiotic Limosilactobacillus fermentum PCC and integrity of the intestinal epithelial monolayers using the Caco-2 cell model. Adhesion of L. fermentum PCC was enhanced (from 35% to 54?73%) in the presence of pectins with high and moderate degree of esterification (DE), whereas it was reduced (to 2%) by a pectin with low DE. Transepithelial electrical resistance (TEER) was significantly increased upon exposure to L. fermentum PCC alone (by 33%) and, to a greater extent, by combinations with pectins (by 44 ? 48%), suggesting synergistic action of bacteria and pectins. Increases in TEER were related to transcriptional responses of the tight junction genes, encoding claudin-4 and claudin-2 proteins. The overall results indicated that pectins, when applied in synbiotic combination with L. fermentum PCC, have potential to improve bacterial adhesion and the intestinal epithelial barrier.
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