连续微通氧浓醪乙醇发酵研究

doi:10.3969/j.issn.1673-1689.2017.06.013

首页 > 过刊浏览>2017年第36卷第6期 >649-656. DOI:10.3969/j.issn.1673-1689.2017.06.013

连续微通氧浓醪乙醇发酵研究
DOI:
                        10.3969/j.issn.1673-1689.2017.06.013
                    
作者:
                        
                        
                    
作者单位:
作者简介:
通讯作者:
中图分类号:TS201.1
基金项目:

Preliminary Study on Ethanol Fermentation with Very High Gravity and Micro-Aeration Technologies

Author:

Affiliation:

Fund Project:

摘要

图/表

访问统计

参考文献

相似文献

引证文献

资源附件

文章评论

摘要:

为了提高浓醪酒精发酵效率，以高浓度木薯粉浆液化滤液为原料，对微通氧浓醪酒精发酵过程进行了研究。在搅拌式5 L发酵罐中，通过对连续通风速率分别为0、0.04、0.08、0.16、0.24、0.35 L/min的高浓度液化滤液酒精分批发酵过程分析表明，最佳通风策略为：以通风速率0.08 L/min进行酒精发酵，酵母细胞密度达到5.40×108个/mL，发酵效率为90.00%，与未通风发酵相比分别提高了56.52%和2.45%。总之，在浓醪酒精发酵过程中微通氧能够提高酵母细胞活性，进而提高发酵效率。

Abstract:

Ethanol is widely used in renewable fuels，chemical engineering，medicine and food industry. In developed countries there is a growing trend towards employing modern technologies and ef?cient bio-energy conversion using a range of biofuels. In order to improve Very High Gravity（VHG） ethanol fermentation efficiency the optimization process of VHG ethanol fermentation from liquefied VHG cassava mash filtrate with micro-aeration were investigated in this thesis. Changes of fermentation parameters during the ethanol fermentation from VHG liquefied starch filtrate with aeration rate （0，0.04，0.08，0.16，0.24，0.35 L/min） by Saccharomyces cerevisiae GGSF16 under batch condition in a 5-L bioreactor were studied. The optimum condition for ethanol fermentation was shown as a continuous aeration rate of 0.08 L/min. The verification experiments under the optimum condition clearly indicated that the aeration strategies improved ethanol production. The biomass and fermentation efficiency were 5.40×108 cells/mL and 90.00%，respectively，representing about 56.52% and 2.45% increase compared to anaeration fermentation. In conclusion，micro-aeration can improve VHG ethanol fermentation efficiency because it can enhance cell viability.

参考文献

相似文献

引证文献

引用本文

刘光鹏,王娟,伍时华,赵岩,和法涛,葛邦国,朱凤涛.连续微通氧浓醪乙醇发酵研究[J].食品与生物技术学报,2017,36(6):649-656.

LIU Guangpeng, WANG Juan, WU Shihua, ZHAO Yan, HE Fatao, GE Bangguo, ZHU Fengtao. Preliminary Study on Ethanol Fermentation with Very High Gravity and Micro-Aeration Technologies[J]. Journal of Food Science and Biotechnology,2017,36(6):649-656.

复制

文章指标

点击次数:
下载次数:
HTML阅读次数:
引用次数:

历史

收稿日期:
最后修改日期:
录用日期:
在线发布日期: 2017-10-16
出版日期:

地址：江苏省无锡市蠡湖大道1800号邮政编码：214122

电话：0510-85913526 电子邮件：xbbjb@jiangnan.edu.cn

技术支持：北京勤云科技发展有限公司

引用本文

分享

文章指标

历史

微信公众号二维码

手机版网站二维码