Yuan Qingxia, Lv Kunling, Huang Jinwen, Sun Shujing, Fang Ziyu, Tan Hongjie, Li Hong, Chen Dan, Zhao Longyan, Gao Chenghai, Liu Yonghong
Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, Guangxi, China.
College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
Food Chem X. 2022 Oct 13;16:100475. doi: 10.1016/j.fochx.2022.100475. eCollection 2022 Dec 30.
Grey mangrove ( (Forssk.) Vierh.) fruit is a traditional folk medicine and health food consumed in many countries. In this study, its polysaccharides (AMFPs) were obtained and analyzed by chemical and instrumental methods, with the results indicating that AMFPs consisted of galactose, galacturonic acid, arabinose, and rhamnose in a molar ratio of 4.99:3.15:5.38:1.15. The dynamic changes in AMFPs during the digestion and fecal fermentation processes were then investigated. The results confirmed that AMFPs were not depolymerized by gastric acid and various digestive enzymes. During fermentation, 56.05 % of the AMFPs were utilized by gut microbiota. Galacturonic acid, galactose, and arabinose from AMFPs, were mostly consumed by gut microbiota. AMFPs obviously decreased harmful bacteria and increased some beneficial microbiota, including , , , and . Furthermore, AMFPs obviously increased the levels of various short-chain fatty acids. These findings suggest that AMFPs have potential prebiotic applications for improving gut health.
灰红树林（(Forssk.) Vierh.）果实是许多国家食用的传统民间药物和保健食品。在本研究中，通过化学和仪器方法对其多糖（AMFPs）进行了提取和分析，结果表明AMFPs由半乳糖、半乳糖醛酸、阿拉伯糖和鼠李糖组成，摩尔比为4.99:3.15:5.38:1.15。随后研究了AMFPs在消化和粪便发酵过程中的动态变化。结果证实，AMFPs不会被胃酸和各种消化酶解聚。在发酵过程中，56.05%的AMFPs被肠道微生物群利用。AMFPs中的半乳糖醛酸、半乳糖和阿拉伯糖大多被肠道微生物群消耗。AMFPs明显减少了有害细菌，并增加了一些有益微生物群，包括 、 、 和 。此外，AMFPs明显提高了各种短链脂肪酸的水平。这些发现表明，AMFPs在改善肠道健康方面具有潜在的益生元应用价值。
