摘要
目前浓香型白酒普遍存在己酸乙酯不足、乳酸乙酯或乙酸乙酯偏高现象,严重影响白酒品质。该研究比较五种大孔吸附树脂(极性DA-201、中极性DM-301、弱极性AB-8、非极性D-101、非极性D4006)和三种碘值与比表面积相同的酒用活性炭(0.5-1 mm颗粒1#、1-2 mm颗粒2#、4-8 mm片状颗粒3#)在不同时间(24 h、48 h、72 h)下对白酒中醇酯的吸附作用。结果表明,两类材料均对酒体中己酸乙酯、丁酸乙酯、乙缩醛和乙酸乙酯表现出吸附能力;树脂类对醇类物质的含量吸附前后基本无变化;活性炭对醇类物质的吸附含量有微量增长。五种大孔吸附树脂中,弱极性树脂AB-8整体吸附能力更强,但极性树脂DA-201乙酸乙酯吸附价值更高,72 h时,DA-201的己酸乙酯吸附作用(吸附率24.34%、吸附量3.33 mg/g)约为AB-8的50%,二者乙酸乙酯吸附能力相当(吸附率36.39%、吸附量13.60 mg/g)。三种酒用活性炭中,片状颗粒的整体吸附效果最佳,随吸附时间的延长而增加,72 h时,片状颗粒3#己酸乙酯吸附率16.60%、吸附量170.10 mg/g,乙酸乙酯吸附率36.65%、吸附量1022.88 mg/g,优于大孔吸附树脂,表明定向制备活性炭是有效转化白酒醇酯异常指标为正常指标的一条途径。
At present,the phenomenon of insufficient ethyl caproate and high ethyl lactate or ethyl acetate is common in strong-flavor(Nongxiangxing)Baijiu,which seriously affect the quality of Baijiu.In this study,five macroporous adsorption resins(polar DA-201,medium polar DM-301,weak polar AB-8,nonpolar D-101 and nonpolar D4006)and three alcohol activated carbon with the same iodine value and specific surface area(0.5-1 mm particles 1#,1-2 mm particles 2#and 4-8 mm flaky particles 3#)were compared with the adsorption of alcohols and esters in Baijiu at different time(24 h,48 h,72 h).The results showed that the two kinds of materials showed adsorption capacity for ethyl caproate,ethyl butyrate,acetal and ethyl acetate in Baijiu.The content of alcohols on resins changed little after adsorption,and the content of alcohol adsorbed by activated carbon increased slightly.Among the five macroporous adsorption resins,the overall adsorption capacity of weak polar resin AB-8 was stronger,however,the adsorption value of polar resin DA-201 was higher.At 72 h,the adsorption capacity of polar resin DA-201 on ethyl caproate(adsorption rate 24.34%,adsorption capacity 3.33 mg/g)was about 50%that of weak polar resin AB-8,and the adsorption capacity of the two resin on ethyl acetate was equivalent(adsorption rate 36.39%,adsorption capacity 13.60 mg/g).Among the three kinds of alcohol activated carbons,the overall adsorption effect of flake particles was the optimal,which was enhanced with the extension of adsorption time.At 72 h,the adsorption rate and adsorption capacity of flaky particles 3#on ethyl caproate were 16.60%and 170.10 mg/g,and the adsorption rate and adsorption capacity on ethyl acetate were 36.65%and 1022.88 mg/g,which were better than those of macroporous adsorption resins,indicating that the directional preparation of activated carbon was an effective way to transform alcohols and esters in abnormal indexes of Baijiu into normal indexes.
作者
袁春芳
苏建
王芳
张富勇
黎崎均
苟梓希
刘莉
陈仕江
王焓
郑佳
YUAN Chunfang;SU Jian;WANG Fang;ZHANG Fuyong;LI Qijun;GOU Zixi;LIU Li;CHEN Shijiang;WANG Han;ZHENG Jia(Yibin Wuliangye Co.,Ltd.,Yibin 644000,China;Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province,Yibin 644000,China;Key Laboratory of Wuliangye-flavor Liquor Solid-state Fermentation,China National Light Industry,Yibin 644000,China)
出处
《中国酿造》
CAS
北大核心
2024年第8期243-248,共6页
China Brewing
关键词
大孔吸附树脂
酒用活性炭
吸附
己酸乙酯
乙酸乙酯
macroporous adsorption resins
activated carbon for alcoholic beverages
adsorption
ethyl caproate
ethyl acetate
作者简介
袁春芳(1993-),女,助理工程师,硕士,研究方向为酿酒废弃物资源再利用;通讯作者:苏建(1985-),男,高级工程师,硕士,研究方向为酿酒废弃物资源再利用。
