摘要
糠壳作为酿造浓香型白酒的主要辅料,其质量好坏直接影响酒体的质量。通过对发酵糟醅中糠壳的超微结构进行追踪,初步以不同外观颜色对糠壳进行分类,研究糠壳在发酵过程中显微结构的变化情况。结果表明,不同颜色的糠壳吸水性差异较大,浅色糠壳吸水率110%,深色糠壳吸水率40%,深褐色糠壳吸水率仅为20%。从扫描电镜观察可知浅色糠壳微孔结构明显,孔径大小无规则;深色糠壳内部的微孔结构减少,微孔中充满了由真菌与细菌等微生物大量繁殖带来的填充物;深褐色糠壳维管束软化,内部结构空洞化严重。本次试验初步研究糠壳在酿酒过程中自身细微结构变化,旨在为白酒酿造辅料功能的研究提供新思路和新方向,为完善酿酒动态过程提供理论基础。
As the main accessory material in the production of Nongxiang Baijiu,the quality of the rice husk directly affects the quality of the liquor.In this study,by tracking the microscopic morphology of the rice husks during the fermentation process,the rice husks were preliminarily classified by color,and the microstructure changes of the rice husks during the fermentation process were studied.The results showed that the water absorption rate of rice husks with different colors was quite different;the water absorption rate of light-colored rice husks was 110 %,the water absorption rate of dark-colored rice husks was 40 %,and the water absorption rate of dark brown rice husks was only 20 %.The scanning electron microscope observation showed that the light-colored rice husks had obvious micro-pore structure,and the pore sizes are irregular;the dark-colored rice husks had less micro-pores,and the micropores were filled with fillers produced by the proliferation of microorganisms;the vascular bundles of the dark brown rice husks were softened,and the internal structure was seriously cavitated.This experiment preliminarily studied the microstructure changes of the rice husk during the fermentation process,so as to provide new directions for the research on the function of accessory materials in Baijiu production,and to provide a theoretical basis for improving the dynamic process of fermentation.
作者
陈仕江
赵东
安明哲
郑佳
陈小文
张富勇
苏建
CHEN Shijiang;ZHAO Dong;AN Mingzhe;ZHENG Jia;CHEN Xiaowen;ZHANG Fuyong;SU Jian(Technology Research Center of Wuliangye Group Co.Ltd.,Yibin,Sichuan 644000,China)
出处
《酿酒科技》
2023年第9期69-74,共6页
Liquor-Making Science & Technology
关键词
糠壳
酿酒
微观形貌
扫描电镜
rice husk
liquor-making
micromorphology
scanning electron microscope
