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Material and microbial changes during corn stalk silage and their effects on methane fermentation.
Zhao, Yubin; Yu, Jiadong; Liu, Jingjing; Yang, HongYan; Gao, Lijuan; Yuan, XuFeng; Cui, Zong-Jun; Wang, Xiaofen.
Afiliación
  • Zhao Y; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
  • Yu J; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
  • Liu J; State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing, China.
  • Yang H; College of Life Sciences/Daqing Bio-Tech Institute, Northeast Forestry University, China.
  • Gao L; Beijing Centre for Physical and Chemical Analysis, China.
  • Yuan X; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
  • Cui ZJ; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
  • Wang X; Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China. Electronic address: wxiaofen@cau.edu.cn.
Bioresour Technol ; 222: 89-99, 2016 Dec.
Article en En | MEDLINE | ID: mdl-27716566
Silage efficiency is crucial for corn stalk storage in methane production. This study investigated characteristics of dynamic changes in materials and microbes during the silage process of corn stalks from the initial to stable state. We conducted laboratory-scale study of different silage corn stalks, and optimized silage time (0, 2, 5, 10, 20, and 30days) for methane production and the endogenous microbial community. The volatile fatty acid concentration increased to 3.00g/L on Day 10 from 0.42g/L on Day 0, and the pH remained below 4.20 from 5.80. The lactic acid concentration (44%) on Day 10 lowered the pH and inhibited the methane yield, which gradually decreased from 229mL/g TS at the initial state (Day 0, 2) to 207mL/g TS at the stable state (Day 10, 20, 30). Methanosaeta was the predominant archaea in both fresh and silage stalks; however, richness decreased from 14.11% to 4.75%.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ensilaje / Zea mays / Consorcios Microbianos / Metano Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ensilaje / Zea mays / Consorcios Microbianos / Metano Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido