School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China.
School of Food and Tourism, Shanghai Urban Construction Vocational College, Shanghai 201415, China.
Int J Biol Macromol. 2024 Oct;278(Pt 3):134685. doi: 10.1016/j.ijbiomac.2024.134685. Epub 2024 Aug 21.
Edible fungi are emerging as a valuable dietary fiber source with health benefits, where their bioactivity hinges on their structure. This study targets the structure-activity relationship of soluble dietary fibers from Lentinus edodes (LESDF), Agaricus bisporus (ABSDF), and Hericium erinaceus (HESDF), focusing on their impact on gut microbiota and health. We explored the properties and structures of edible fungi, finding their soluble fibers affect metabolites and gut microbiota by increasing gas and lowering pH. Among these, HESDF demonstrated superior effects (pH: △1.4 ± 0.07; Gas production: △24.5 ± 0.4 mL). Furthermore, different types of edible fungi dietary fiber exhibited distinct capabilities in promoting the production of short-chain fatty acids by gut microorganisms. For instance, ABSDF exceled in acetic acid production (26.12 ± 0.35 mM) and propionic acid production (9.50 ± 0.13 mM), while HESDF stood out in butyric acid production (17.86 ± 0.09 mM). LESDF showed higher levels of Phascolarctobacterium, ABSDF had elevated levels of Ruminococcus, and HESDF displayed increased levels of Faecalibacterium. These results contribute to our understanding of how soluble dietary fiber from different edible fungi impacts gut microbiota and offers insights for the development and utilization of these fibers as functional food.
食用真菌作为一种具有健康益处的有价值膳食纤维来源正在兴起，其生物活性取决于其结构。本研究针对香菇（LESDF）、双孢蘑菇（ABSDF）和猴头菇（HESDF）可溶性膳食纤维的结构-活性关系，重点研究其对肠道微生物群和健康的影响。我们探索了食用真菌的特性和结构，发现它们的可溶性纤维通过增加气体和降低 pH 值来影响代谢物和肠道微生物群。其中，HESDF 表现出优越的效果（pH：△1.4±0.07；气体产生：△24.5±0.4 mL）。此外，不同类型的食用真菌膳食纤维在促进肠道微生物产生短链脂肪酸方面表现出不同的能力。例如，ABSDF 在产生乙酸（26.12±0.35 mM）和丙酸（9.50±0.13 mM）方面表现出色，而 HESDF 在产生丁酸（17.86±0.09 mM）方面表现出色。LESDF 中 Phascolarctobacterium 的含量较高，ABSDF 中 Ruminococcus 的含量较高，HESDF 中 Faecalibacterium 的含量较高。这些结果有助于我们了解不同食用真菌的可溶性膳食纤维如何影响肠道微生物群，并为这些纤维作为功能性食品的开发和利用提供了新的思路。
