Effects of Lactic Acid Bacteria Additives on the Quality, Volatile Chemicals and Microbial Community of Leymus chinensis Silage During Aerobic Exposure
文献类型： 外文期刊
作者： Liu, Yichao 1 ; Li, Yuyu 1 ; Lu, Qiang 1 ; Sun, Lin 3 ; Du, Shuai 4 ; Liu, Tingyu 5 ; Hou, Meiling 5 ; Ge, Gentu 1 ; Wang, Zhijun 1 ; Jia, Yushan 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Key Lab Forage Cultivat Proc & High Efficient Util, Minist Agr & Rural Affairs, Hohhot, Peoples R China
2.Inner Mongolia Agr Univ, Minist Educ, Key Lab Grassland Resources, Hohhot, Peoples R China
3.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot, Peoples R China
4.Zhejiang Univ, Inst Feed Sci, Natl Engn Lab Biol Feed Safety & Pollut Prevent &, Key Lab Anim Nutr & Feed Sci Zhejiang Prov, Hangzhou, Peoples R China
5.Inner Mongolia Univ Nationalities, Coll Agr, Tongliao, Peoples R China
关键词： lactic acid bacteria; aerobic stability; microbial community; volatile chemicals; silage
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）
ISSN：
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： Silage exposed to air is prone to deterioration and production of unpleasant volatile chemicals that can seriously affect livestock intake and health. The aim of this study was to investigate the effects of Lactobacillus plantarum (LP), Lactobacillus buchneri (LB), and a combination of LP and LB (PB) on the quality, microbial community and volatile chemicals of Leymus chinensis silage at 0, 4, and 8 days after aerobic exposure. During aerobic exposure, LP had higher WSC and LA contents but had the least aerobic stability, with more harmful microorganisms such as Penicillium and Monascus and produced more volatile chemicals such as Isospathulenol and 2-Furancarbinol. LB slowed down the rise in pH, produced more acetic acid and effectively improved aerobic stability, while the effect of these two additives combined was intermediate between that of each additive alone. Correlation analysis showed that Actinomyces, Sphingomonas, Penicillium, and Monascus were associated with aerobic deterioration, and Weissella, Pediococcus, Botryosphaeria, and Monascus were associated with volatile chemicals. In conclusion, LB preserved the quality of L. chinensis silage during aerobic exposure, while LP accelerated aerobic deterioration.
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