曲霉豆豉和毛霉豆豉理化指标和风味物质差异分析Analysis of Physicochemical Indexes and Difference of Flavor Substances of Aspergillus-Type Douchi and Mucor-Type Douchi
刘迎涛,余玲,廖柯,唐扬,林曼,胡陆军,王佐军
摘要(Abstract):
该研究以曲霉豆豉和毛霉豆豉为研究对象,对其水分含量、pH、还原糖含量等理化指标以及亚硝酸盐含量进行测定,并对其进行了风味物质和感官品评分析。结果表明,在水分含量方面,毛霉豆豉大于曲霉豆豉,且3个曲霉豆豉样品之间以及3个毛霉豆豉样品之间存在差异,其中毛霉豆豉3水分含量最高,为38.16%;在pH方面,毛霉豆豉和曲霉豆豉差异不显著;在还原糖含量方面,毛霉豆豉和曲霉豆豉差异不显著,而曲霉豆豉样品之间存在显著性差异,其中曲霉豆豉1还原糖含量最高,为3.3%;在亚硝酸盐含量方面,曲霉豆豉高于毛霉豆豉,且毛霉豆豉样品之间均存在显著性差异,但各样品含量均低于允许检出限;顶空固相微萃取和气相色谱-质谱技术测定结果显示,曲霉豆豉风味物质含量和种类均大于毛霉豆豉,曲霉豆豉1风味物质种类最多,为57种,曲霉豆豉2风味物质含量最高,为224 195.8μg/mL;毛霉豆豉3风味物质种类最多,为44种,毛霉豆豉1风味物质含量最高,为163 623.2μg/mL。在感官评价方面,曲霉豆豉显著优于毛霉豆豉,且曲霉豆豉2感官评分最高,为90分,而毛霉豆豉1感官评分最高,为85分。
关键词(KeyWords): 曲霉豆豉;毛霉豆豉;顶空固相微萃取;气相色谱-质谱
基金项目(Foundation): 四川省重点研发项目(2018GZ0022)
作者(Author): 刘迎涛,余玲,廖柯,唐扬,林曼,胡陆军,王佐军
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