窖泥的酸碱缓冲容量研究  

Study on Acidic and Alkaline Buffering Capacity of Pit Mud

作　　者：刘义会[1,4,5] 谢军 李觅 邓波 宋川 常少健[1,4,5] 王超凯[1,2,4,5] 彭奎[1,4,5] 郭杰 张磊[1,2,4,5] LIU Yi-hui;XIE Jun;LI Mi;DENG Bo;SONG Chuan;CHANG Shao-jian;WANG Chao-kai;PENG Kui;GUO Jie;ZHANG Lei(Sichuan Food Fermentation Industry Research and Design Institute,Chengdu Sichuan 611130,China;Liquor Making Biotechnology and Application Key Laboratory of Sichuan Province,Yibin Sichuan 644000,China;LuzhouLaoJiao Co.,Ltd.,Luzhou Sichuan 646000,China;Liu Nian’s Master Studio of Oenological Skills,Chengdu Sichuan 611130,China;Key Laboratory of Brewing Engineering and Application of China National Light Industry Council,Chengdu Sichuan 611130,China)

机构地区：[1]四川省食品发酵工业研究设计院,四川成都611130 [2]四川轻化工大学酿酒生物技术及应用四川省重点实验室,四川宜宾644000 [3]泸州老窖股份有限公司,四川泸州646000 [4]刘念酿酒师技能大师工作室,四川成都611130 [5]中国轻工业酿酒工程及应用重点实验室,四川成都611130

出　　处：《食品与发酵科技》2021年第1期95-98,共4页Food and Fermentation Science & Technology

基　　金：酿酒生物技术及应用四川省重点实验室开放基金项目(NJ2018-11);酿酒生物技术及应用四川省重点实验室开放基金项目(NJ2019-07);四川省科技厅重点研发项目(2019YFS004)。

摘　　要：对窖泥样品的酸碱缓冲容量做了研究。通过酸碱滴定曲线拟合法,测得4个窖泥的酸碱缓冲容量分别为511.38 mmol/kg和205.50 mmol/kg、961.87 mmol/kg和279.99 mmol/kg、341.17 mmol/kg和69.21 mmol/kg、336.28 mmol/kg和116.58 mmol/kg。结果表明,不同窖泥酸碱缓冲容量差异较大,同一窖泥样品对酸的缓冲容量高于对碱的缓冲容量,年份较短的窖泥样品的酸碱缓冲容量高于年份较长的窖泥样品。The acid and alkaline buffering capacity of pit mud samples were studied. By using a curve fitting method based on acid-base titration,the acidic and alkaline buffering capacity of the 4 pit mud samples were511.38 mmol/kg and 205.50 mmol/kg,961.87 mmol/kg and 279.99 mmol/kg,341.17 mmol/kg and 69.21 mmol/kg,336.28 mmol/kg and 116.58 mmol/kg respectively. The results showed that the acidic and alkaline buffering capacity of different pit mud samples were quite different,the acidic buffering capacity of the same pit mud sample is higher than that of alkaline buffering capacity,and the acidic and alkaline buffering capacity of pit mud samples with shorter year were higher than that of pit mud samples with longer year.

关 键 词：窖泥 PH 缓冲容量 

分 类 号：TS261.4[轻工技术与工程—发酵工程]