Related Experiment Video
Updated: May 3, 2026

Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol
Published on: October 24, 2016
The structural properties of "Huilou" yam starch fermented with five microbial species
Xiaolong Xing1, Yang Song1, Yong Yang2
1College of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China.
Abstract:
In this study, we employed two lactic acid bacterial species, two yeast species, and Bacillus amyloliquefaciens to ferment "Huilou" yam starch. The aim was to explore the effects of fermentation time and microbial species on the structural properties of yam starch. The results showed that fermentation caused an increase in relative crystallinity (29.23 %-37.98 %) compared with native starch (25.69 %). The fermentation process altered the thermal properties of yam starch, leading to higher enthalpy of gelatinization values compared with unfermented starch. Notably, an absorption peak of native starch shifted from 992 cm-1 to 1015 cm-1 upon 2-day fermentation by Bacillus amyloliquefaciens and 5-day fermentation by Lactobacillus plantarum or Pediococcus pentococcus, associated with an increase in the presence of amorphous structures in yam starch. "Huilou" yam starch obtained through lactic acid bacterial fermentation exhibited a significant presence of organic acids, whereas samples derived from Bacillus amyloliquefaciens fermentation were primarily affected by amylase activity. Following yeast fermentation, organic acids and amylase were observed, albeit with relatively low influence. This research reveals that microbial fermentation can potentially alter the structural characteristics of yam starch, which can improve the quality of yam starch-based foods.
More Related Videos
06:51High-throughput Screening of Carbohydrate-degrading Enzymes Using Novel Insoluble Chromogenic Substrate Assay Kits
Published on: September 20, 2016
00:06Analysis of Interactions between Endobiotics and Human Gut Microbiota Using In Vitro Bath Fermentation Systems
Published on: August 23, 2019
Related Concept Videos
Microbial Fermentation
Fungal Group Zygomycota
Microbes in Food Production
Microbes in Beverage Production
Microbes in the Production of Fermented Foods
Production of Organic Acids