超贮稻谷半连续浓醪发酵生产燃料乙醇工艺研究  

Research on production of fuel ethanol from whole brown rice by semi-continuous and high-gravity fermentation technology

作　　者：武国庆 吴德旺 沈乃东 赵二永 张宏嘉 郭翠 周锦怡 李红波 李冬敏 佟毅 WU Guoqing;WU Dewang;SHEN Naidong;ZHAO Eryong;ZHANG Hongjia;GUO Cui;ZHOU Jinyi;LI Hongbo;LI Dongmin;TONG Yi(COFCO Nutrition and Health Research Institute,Beijing 102209,China;National Energy Research Center of Liquid Biofuels,Beijing 102209,China;COFCO Biotechnology Co.,Ltd.,Bengbu 233010,China;National Engineering Research Center of Corn Deep Processing,Changchun 130033,China)

机构地区：[1]中粮营养健康研究院,北京102209 [2]国家能源生物液体燃料研发中心,北京102209 [3]中粮生物科技股份有限公司,安徽蚌埠233010 [4]玉米深加工国家工程研究中心,吉林长春130033

出　　处：《中国酿造》2021年第6期97-101,共5页China Brewing

基　　金：中粮生物科技有限公司重点项目(003)(2019-B2-T017)。

摘　　要：该文以脱壳超储稻谷(全糙米)为原料,开展了半连续浓醪发酵生产燃料乙醇工艺研究。在中粮安徽30万t/年半连续燃料乙醇装置上进行了高浓拌料、喷射液化、同步糖化半连续发酵、精馏后制备乙醇等一系列试验。结果表明,全糙米发酵成熟醪平均酒份达到15.36%vol、平均还原糖含量0.21%、残淀粉含量0.40%、残糊精含量0.55%、酸度8.43°T、挥发酸含量0.35 g/L。该技术在国内处于领先水平,可为企业带来经济效益,值得进一步推广应用。In this paper,the production of fuel ethanol from hulled and overstored rice(whole brown rice)was studied by semi-continuous thick mash fermentation.A series of experiments were carried out on COFCO 300000 t/year semi-continuous fuel ethanol plant in Anhui,including high concentration mixing,jet liquefaction,simultaneous saccharification semi-continuous fermentation,and distillation to produce ethanol.The results showed that average alcohol content of whole brown rice fermented mature mash reached 15.36%vol,average reducing sugar content 0.21%,residual starch content 0.40%,residual dextrin content 0.55%,acidity 8.43°T,volatile acid content 0.35 g/L.The technology is at the leading level in China,which can bring economic benefits to enterprises and is worthy of further popularization and application.

关 键 词：超贮稻谷 全糙米 燃料乙醇 半连续发酵 同步糖化发酵 浓醪发酵 

分 类 号：TS261.4[轻工技术与工程—发酵工程] TS262.2[轻工技术与工程—食品科学与工程]