[1]王杏文,季更生,勇强,等.树干毕赤酵母单级连续发酵制取乙醇的研究[J].南京林业大学学报(自然科学版),2007,31(05):006-10.[doi:10.3969/j.jssn.1000-2006.2007.05.002]
 WANG Xing-wen,JI Geng-sheng,YONG Qiang,et al.Production of Ethanol Through Single-stage Continuous Fermentation by Pichia stipitis[J].Journal of Nanjing Forestry University(Natural Science Edition),2007,31(05):006-10.[doi:10.3969/j.jssn.1000-2006.2007.05.002]
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树干毕赤酵母单级连续发酵制取乙醇的研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
31
期数:
2007年05期
页码:
006-10
栏目:
研究论文
出版日期:
2007-05-20

文章信息/Info

Title:
Production of Ethanol Through Single-stage Continuous Fermentation by Pichia stipitis
文章编号:
1000-2006(2007)05-0006-05
作者:
王杏文1季更生2勇强1余世袁1*
1.南京林业大学化学工程学院, 江苏 南京 210037;2.江苏科技大学生物与环境工程学院, 江苏 镇江 212018
Author(s):
WANG Xing-wen1 JI Geng-sheng2 YONG Qiang1 YU Shi-yuan1*
1. College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China; 2. College of Biology and Environmental Engineering Jiangsu Science and Technology University, Zhenjiang 212018, China
关键词:
树干毕赤酵母连续发酵乙醇
Keywords:
Pichia stipitis Continuous fermentation Ethanol
分类号:
TQ92;Q532
DOI:
10.3969/j.jssn.1000-2006.2007.05.002
文献标志码:
A
摘要:
<正>利用压片法,通过连续的采样,研究了杉木雄球花花粉母细胞减数分裂的规律。结果表明:杉木雄球花花粉母细胞减数分裂与一般植物的花粉母细胞PMCs减数分裂相似,但其减数分裂的染色体进程因个体的不同而不同,甚至同一个体不同部位的减数分裂时期也表现为不同步。在某一雄球花内,小孢子叶从中央向两端逐步成熟。杉木花粉母细胞减数分裂时期与颜色和大小变化有密切的关系,其颜色发生从黄褐色—翠绿色—绿色—褐色—深褐色的变化,其中杉木雄球花颜色变化与其减数分裂进程有极其密切的关系。
Abstract:
Effects of dilution rates, influent sugar concentration and initial yeasts concentration on single-stage continuous fermentation were investigated. The results showed that dilution rates had significant influence on continuous fermentation. When influent sugar concentration was 45g/L, continuous fermentation arrived at a satisfactory purpose at dilution rates 0.04~0.06h-1, ethanol yield for 0.370~0.372g/g and ethanol productivity for 0.586~0.754g/(L?h). At dilution rates 0.06h-1, the preferable influent sugar concentration was 45g/L, while ethanol productivity was 0.785g/(L?h). If dilution rates and influent sugar concentration were determinated, initial yeasts concentration had little effects on single-stage continuous fermentation. Though single-stage continuous fermentation for total 288h at two different dilution rates, the steady stage was obtained effects 40h of continuous fermentation, and various parameters held stable for about 104h.

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更新日期/Last Update: 2013-05-20