|Table of Contents|

Very High Gravity Fermentation of Ethanol with Fresh Sweet Potato(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2009 03
Page:
410-413
Research Field:
swz
Publishing date:

Info

Title:
Very High Gravity Fermentation of Ethanol with Fresh Sweet Potato
Author(s):
JIN YanlingGAN MingzheFANG YangLI KeFU JieZHAO Hai1
1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Keywords:
fuel ethanol fresh sweet potato very high gravity
CLC:
TK6 : S531.099 : TQ920.6
PACS:
DOI:
10.3724/SP.J.1145.2009.00410
DocumentCode:

Abstract:
Abstract Ethanol can be utilized as fuel to improve energy consumption structure and reduce dependence on oil. Very high gravity fermentation, as a kind of emerging technique, can greatly reduce the costs of ethanol production. The very high gravity fermentation of ethanol with fresh sweet potato by Saccharomyces cerevisiae was studied. The impact factors of this fermentation technique were investigated, including fermentation stimulant, inorganic salt, vitamin and initial sugar concentration. As a result, the optimal fermentation culture was determined: 1.20 g kg-1 fermentation stimulant B, 270 g kg-1 initial sugar concentration and no inorganic salt and vitamin. Under the optimum medium conditions, 132.86 g kg-1 ethanol was produced within 28 hours and the ethanol production rate reached 4.74 g kg-1 h-1. In 10 L fermentor, 131.71 g kg-1 ethanol was produced within 28 hours and the ethanol production rate reached 4.70 g kg-1 h-1. Fig 3, Tab 3, Ref 16

References

1 Wang FQ, Gao CJ, Yang CY, Xu P. Optimization of an ethanol production medium in very high gravity fermentation. Biotechnol Lett, 2007, 29: 233~236
2 Murthy GS, Singh V, Johnston DB, Rausch KD, Tumbleson ME. Improvement in fermentation characteristics of degermed ground corn by lipid supplementation. J Ind Microbiol Biotechnol, 2006, 33: 655~660
3 Bafrncova P, Smogrovicova D, Slavikova I, Patkova J, Domeny Z. Improvement of very high gravity ethanol fermentation by media supplementation using Saccharomyces cerevisiae. Biotechnol Lett,1999, 21: 337~341
4 Ozmihci S, Kargi F. Effects of feed sugar concentration on continuous ethanol fermentation of cheese whey powder solution (CWP). Enzyme & Microbial Technol, 2007, 41: 876~880
5 Xue WW (薛万伟), Dang XJ (党选举), Li X (李鑫). Study on the technology of cassava ethanol fermentation. Niangjiu (酿酒), 2005, 32 (4): 39~40
6 Srichuwonga S, Fujiwaraa M, Wanga XH, Seyamaa T, Shiromaa R, Arakanea M, Mukojimab N, Tokuyasua K. Simultaneous saccharification and fermentation (SSF) of very high gravity (VHG) potato mash for the production of ethanol. Biomass & Bioenergy, 2009, 33 (5): 890~898
7 Jin YL (靳艳玲), Gan MZ (甘明哲), Zhou LL (周玲玲), Xue HL (薛慧玲), Zhang L (张良), Zhao H (赵海). Comparison on ethanol production with 4 varieties of sweet potato at different growth stages. Chin J Appl Environ Biol (应用与环境生物学报), 2009, 15 (2): 267~270
8 Wang JH, Teng D, Yao Y, Yang YL, Zhang F. Expression of Aspergillus niger 9891 endoinulinase in Pichia pastoris. High Technol Lett, 2004, 10 (4): 51~56
9 Wang LS, Ge XY, Zhang WG. Improvement of ethanol yield from raw corn flour by Rhizopus sp. World J Microbiol Biotechnol, 2007, 23: 461~465
10 Liu Y (刘艳), Zhao H (赵海), Qi TS (戚天胜), Tang QL (唐秋琳), Huang YF (黄宇峰). Fast production of ethanol by Zymomonas mobilis (Zy-1). Chin J Appl Environ Biol (应用与环境生物学报), 2007, 13 (1): 69~72
11 Daeschel MA, Andersson RE, Fleming HP. Microbial ecology of fermenting plant materials. FEMS Microbiol Lett, 2006, 46 (3): 357~367
12 Zhang KC (章克昌). Technology of Ethanol and Tequila. Beijing, China (北京): China Light Industry Press, 1995
13 Alfenore S, Molina-Jouve C, Guillouet SE, Uribelarrea JL, Goma G, Benbadis L. Improving ethanol production and viability of Saccharomyces cerevisiae by a vitamin feeding strategy during fed-batch process. Appl Microbiol Biotechnol, 2002, 60: 67~72
14 Zhao BH (赵宝华), Zhang L (张莉). The effects on ethanol fermentation of Saccaromyces cereyisiae by adding ca2+ and inositol. Acta Microbiol Sin (微生物学报), 1999, 39 (2): 174~177
15 Zhang LM (张立明), Wang QM (王庆美), Wang MX (王荫墀). The main nutrient components and health care function of sweet potato. Rain Fed Crops (杂粮作物), 2003, 23 (3): 162~166
16 Liu Z (刘振), Wang JP (王金鹏), Zhang LF (张立峰), Zeng AW (曾爱武), Yuan XG (袁希钢). Production of ethanol by simultaneous saccharifiction and fermentation from cassava. Chin J Proc Engin (过程工程学报), 2005, 5 (3): 353~357

Memo

Memo:
-
Last Update: 2009-07-03