posted on 2021-10-12, 07:30authored byRan Zhang, Lei Wang, Chengcheng Shi, Qipeng Shi, Fuying Ma, Xiaoyu Zhang, Wen Yu, Hongbo Yu
Lignin-carbohydrate complexes (LCCs)
have recently emerged as natural
products with pharmaceutical and nutraceutical potential. Here, we
compared the structure of LCCs from ginkgo (GK, gymnosperms), wheat
straw (WST, monocotyledons), and aspen white poplar (AW, dicotyledons).
We also investigated the biotransformation of LCCs by intestinal microbiota
in vitro. We found that human intestinal microbiota could use LCCs
as a carbon source for growth, breaking resistant cross-linkages in
LCCs to generate a plethora of short-chain fatty acids (SCFAs) and
aromatic compounds with putative beneficial effects on human health.
The yield of SCFAs reached 1837.8 ± 44.1 μmol/g using AW
LCCs as a carbon source. The biomass of intestinal microbiota increased
the fastest using GK LCCs. The greatest amounts of phenolics were
present at 4 h in a WST LCCs fermentation system. Many phenolic acids
with potential bioactivity were obtained after 24 h fermentation using
each LCCs, such as ferulic acid.