现代畜牧兽医Issue(11)：7-11,5.DOI:10.20154/j.cnki.issn1672-9692.2025.11.002
降解玉米淀粉加工副产物中亚硫酸盐的微生物菌种分离、鉴定与筛选
Isolation,identification,and screening of microbial strains for degrading sulfites in corn starch processing by-products
李敬盼 1陈琳 1贺壮壮 1周薪 1苑伟伟 1吕宾 1高烁1
作者信息
- 1. 青岛蔚蓝生物集团有限公司,山东 青岛 266000||山东康地恩生物科技有限公司,山东 临沂 276000
- 折叠
摘要
Abstract
This study aimed to screen microbial strains with high efficiency in degrading sulfites in corn starch processing by-products.Strains were isolated from corn by-products,feed raw materials,and other sources.All isolated and purified strains were identified by MALDI-TOF mass spectrometry and preserved.Strains listed in the Feed Additive Catalog were selected for preliminary screening of sulfite degradation capability.Secondary screening was conducted through solid-state fermentation of corn germ meal,followed by acid tolerance evaluation of the top six strains with the highest degradation rates.Results showed that 194 strains-including bacilli,yeasts,and lactic acid bacteria-were selected for preliminary screening.The yeast strain JM06 exhibited the highest degradation rate(72.46%),significantly outperforming lactic acid bacteria(the best-performing lactic acid bacterium was Lactiplantibacillus plantarum ZW21,with a degradation rate of 34.44%).In secondary screening,yeast and lactic acid bacteria showed comparable degradation rates for sulfites in corn germ meal,with JM06(63.36%)and ZW21(62.26%)being the top performers.Based on these results,JM06,ZW21,JM02,SS01,JM05,and SS03 were selected for acid tolerance evaluation,revealing significantly superior acid resistance in yeasts versus lactic acid bacteria.This study demonstrates that yeasts outperform lactic acid bacteria in both sulfite degradation capability and acid tolerance,identifying JM06 as the optimal strain for sulfite degradation.关键词
玉米淀粉加工副产物/亚硫酸盐降解/菌种筛选/耐酸性能Key words
Corn starch processing by-products/Sulfite degradation/Strain screening/Acid tolerance分类
农业科技引用本文复制引用
李敬盼,陈琳,贺壮壮,周薪,苑伟伟,吕宾,高烁..降解玉米淀粉加工副产物中亚硫酸盐的微生物菌种分离、鉴定与筛选[J].现代畜牧兽医,2025,(11):7-11,5.
