哈尔滨工业大学学报（英文版）2003，Vol.10Issue(2)：195-199,5.
Influence of temperature on production of lactic acid from kitchen garbage
Influence of temperature on production of lactic acid from kitchen garbage
汪群慧 1徐忠 2孟令辉 3孙晓红 2王旭明1
作者信息
- 1. Dept. of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
- 2. Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China
- 3. Dept. of Environmental Science and Engineering, Harbin University of Commerce, Harbin 150076, China
- 折叠
摘要
Abstract
The production of lactic acid from kitchen garbage, the precursor for production of biodegradableplastics is described in detail. The influence of temperature on the lactic acid concentration, sugar concentra-tion, and decrement of garbage were evaluated through experiments. Fermentation were carried out in an incu-bator at 5, 25, 37 and 50 ℃. The latic acid produced was maximum at initial pH 6.0 and 37 ℃ , i.e. 38 g/Lwith a yield of 0.23 g/gVS. It is concluded from the experimental results that temperature has quite a consider-able effect on the production of lactic acid; lactic acid concentration increases with temperature until 37 ℃ ,and production rate of lactic acid drops at 50 ℃; the optimal fermentation is 37 ℃. This study shows that pro-duction of lactic acid from kitchen garbage is feasible and reduction of garbage can be realized.关键词
lactic acid/garbage treatment/biodegradable plastics/kitchen garbageKey words
lactic acid/garbage treatment/biodegradable plastics/kitchen garbage分类
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汪群慧,徐忠,孟令辉,孙晓红,王旭明..Influence of temperature on production of lactic acid from kitchen garbage[J].哈尔滨工业大学学报（英文版）,2003,10(2):195-199,5.
