Effects of additives containing a novel strain on the fermentation characteristics, structural carbohydrates, and alpha-tocopherol content of rice straw and corn stover silages

文献类型： 外文期刊

第一作者： Wu, Qifeng

作者： Wu, Qifeng;Xiao, Yu;Shao, Tao;Zong, Cheng;Liu, Qinhua;Li, Mao

作者机构：

关键词： Bacillus tequilensis; Chlorophyll; alpha-Tocopherol; Structural carbohydrates

期刊名称：CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE （ 影响因子：6.6； 五年影响因子：6.6 ）

ISSN：

年卷期： 2023 年 10 卷 1 期

页码：

收录情况： SCI

摘要： A novel alpha-tocopherol-producing bacteria strain was isolated and identified as Bacillus tequilensis QH1 (QH1). The effects of QH1 strain inoculation alone (QH), combined with cell wall degradation enzyme (QC), or Lactiplantibacillus plantarum subsp. plantarum YM3 and cell wall degradation enzyme (QLC) as the additives on the fermentation characteristics, structural carbohydrates, and alpha-tocopherol content of rice straw and corn stover silages were investigated, and without additives as the control (CON), in 4 replicates. After silages were kept in a laboratory cabinet (26-34 ?) and the dark for 42 d, experimental silos (polyethylene plastic bags) were opened for analysis. The results exhibited that the control and additives-treated rice straw and corn stover were ensiled well, indicated by high lactic acid content and little butyric acid content. The QH and QC degraded structural carbohydrates, demonstrated by lower (P < 0.001) neutral detergent fiber (NDF) and acid detergent fiber (ADF) than the control, but did not enhance lactic acid fermentation, evidenced by lower (P < 0.001) lactic acid content in QH-treated silages compared with the control silages. The effect of QLC on degrading structural carbohydrates was influenced by material factors, evidenced by no role in decreasing the contents of NDF and ADF in rice straw silage and a good role in decreasing the contents of NDF and ADF in corn stover silage. However, the water-soluble carbohydrate (WSC) contents in both rice straw and corn stover silages were increased (P < 0.001) by QLC compared with the control. The control and additives-treated silages had much higher (P < 0.001) alpha-tocopherol content and lower (P < 0.001) chlorophyll content compared with the material before ensiling. Compared with the control, higher alpha-tocopherol content was found in QH-treated rice straw (P = 0.071) and corn stover silages (P < 0.05), and QLC-treated corn stover silage (P < 0.05). Therefore, the QH1 strain had the potential to be applied in rice straw silage production, and QLC was recommended to be applied in corn stover silage production.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序