中国酿造2026，Vol.45Issue(1)：140-147,8.DOI:10.11882/j.issn.0254-5071.2026.01.019
鲁西北运河产区中高温和高温大曲真菌群落结构和水分指标解析及其相关性
Analysis and correlation of fungal community structure and moisture indicators of medium-high-temperature and high-temperature Daqu from Northwest Canal region of Shandong Province
摘要
Abstract
To investigate the quality differences between medium-high-and high-temperature Daqu in the Northwest Canal region of Shandong province,the fungal community structure,and moisture indicators(water content,water activity,bound water,immobile water,and free water content)were an-alyzed by PacBio SMRT sequencing technique,conventional physicochemical testing methods,and low field-nuclear magnetic resonance(LF-NMR)technology.Additionally,the correlation between dominant fungal species and moisture indicators was analyzed.Sequencing results revealed that As-pergillus proliferans was the dominant species in medium-high-temperature Daqu,with an average relative abundance of 55.08％,whereas Thermo-mucor lanuginosus predominated in high-temperature Daqu,with an average relative abundance of 34.66％.A total of 12 significantly differential sub-stances were identified by linear discriminant analysis effect size(LEfSe),which showed distinct differences in the two types of Daqu samples.Among them,A.proliferans and T.lanuginosus could serve as biomarkers for medium-high-temperature Daqu and high-temperature Daqu,respectively.Moisture indicators analysis results demonstrated that medium-high-temperature Daqu had significantly higher water content(11.00％),water activity(0.641),immobile water(5.04％),and free water(0.96％)(P＜0.05),whereas high-temperature Daqu exhibited significantly higher bound water con-tent(94.96％)(P＜0.05).Correlation analysis results showed that there was a significant or extremely significant correlation between the dominant fungal species and the moisture indicators(P＜0.05 or P＜0.01).These findings provided data support for elucidating the quality variations among different types of Daqu in Northwest Canal region of Shandong province.关键词
鲁西北/中高温大曲/高温大曲/真菌群落结构/水分指标/相关性分析Key words
Northwestern Shandong/medium-high-temperature Daqu/high-temperature Daqu/fungal community structure/moisture indicator/cor-relation analysis分类
轻工纺织引用本文复制引用
杜绍基,王玉荣,杜新勇,王朝青,侯强川,郭壮..鲁西北运河产区中高温和高温大曲真菌群落结构和水分指标解析及其相关性[J].中国酿造,2026,45(1):140-147,8.基金项目
湖北省高等学校优秀中青年科技创新团队计划项目(T2023022) （T2023022）
