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| 多底物共发酵产酸特性研究 | |
| 引用本文： | 边道林,孙磊,王爽,郭炜,王朋峰.多底物共发酵产酸特性研究[J].黑龙江农业科学,2014(9):28-31. |
| 作者姓名： | 边道林 孙磊 王爽 郭炜 王朋峰 |
| 作者单位： | 1. 黑龙江省农业科学院,黑龙江哈尔滨,150086 2. 黑龙江省农业科学院 土壤肥料与环境资源研究所,黑龙江哈尔滨,150086 3. 黑龙江省农业科学院 农村能源研究所,黑龙江 哈尔滨,150086 4. 山东省临沭县农业局,山东临沭,276700 |
| 基金项目： | “十二五”科技支撑计划资助项目(2013BAD 07B01)；黑龙江省科技特派员农村创新创业资助项目(GC 12B711)；黑龙江省博士后基金 |
| 摘 要： | 为探讨多种底物共发酵是否有利于定向产酸发酵,以牛粪、水稻秸秆、糖蜜废水为底物,分析了产酸相中不同时期pH、ORP、挥发性脂肪酸及秸秆纤维素含量的变化。结果表明:在反应器初期30d时,产酸菌群活性增长期,大量挥发性脂肪酸的产生使得pH迅速下降。反应后期60d,pH缓慢上升,为6.2~6.5,ORP值为-250~-400mV,满足产酸菌的生长条件。共发酵具有很强的碳源氮源互相补充的能力,有利于发酵的进行。反应120d时,水稻秸秆中纤维素得到有效降解。 |
| 关 键 词： | 多底物 共发酵 产酸 |
Study on Characters of Acid Production with Multi-Substrate Co-Fermentation |
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| BIAN Dao-lin,SUN Lei,WANG Shuang,GUO Wei,WANG Peng-feng.Study on Characters of Acid Production with Multi-Substrate Co-Fermentation[J].Heilongjiang Agricultural Science,2014(9):28-31. | |
| Authors: | BIAN Dao-lin SUN Lei WANG Shuang GUO Wei WANG Peng-feng |
| Institution: | BIAN Dao-lin, SUN Lei, WANG Shuang, GUO Wei, WANG Peng-feng (1. Heilongjiang Academy of Agricultural Science, Harbin, Heilongjiang 150086;2. Soil Fer- tilizer and Environment Resource Institute of Heilongjiang Academy of Agricultural Science, Harbin,Heilongjiang 150086;3. Rural Energy Resources Institute of Heilongjiang Academy of Agricultural Science, Harbin, Heilongjiang 150086 ;4. Linshu Agricultural Bureau of Shan- dong Province, Linshu, Shandong 276700) |
| Abstract: | In order to explore multi-substrate co-fermentation whether be conducive to acidogenic fermentation , taking cow dung ,rice straw and molasses wastewater as substrate ,the change of pH ,ORP ,volatile organic acid and cellulose content in straw during different period in acidogenic-phase were analyzed .The results showed that ：in the first 30 days ,the activity of acid-producing bacteria increased fast ,production of volatile organic acid lead to pH decrease .In the later 60 days ,pH rose slowly and ranged from 6 .2 to 6 .5 ,ORP varied from -250 to -400 mV ,which met growth conditions of acid-producing bacteria .Co-fermentation had a strong ability to supplement carbon source and nitrogen source and was conducive to ferment .When ferment for 120 days ,cellu-lose in straw degraded effectively . |
| Keywords: | multi-substrate co-fermentation acid production |
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