基于分子感官科学的香紫苏精油特征香气成分分析Analysis of Characteristic Aroma Components of Salvia sclarea L. Essential Oil Based on Molecular Sensory Science
吴继忠,帖金鑫,李石头,许高燕,刘崇盛,田雨农,廖付,杨靖
摘要(Abstract):
利用GC-MS对香紫苏精油的挥发性成分进行了分离和鉴定,确定了34种致香成分,基于GC-MS-O技术确定了17种香气活性成分,并通过内标标准曲线测定了其含量,分别计算了其香气活力值(OAV)及对精油香气的贡献度,并采用OAV对其香气特征进行了分析。结果表明,香紫苏精油的主要致香物质是乙酸芳樟酯和芳樟醇,二者含量占到总量的62.3%,17种成分的FD因子(香气稀释因子)≥2;17种主要成分可以分为5个香韵,柠檬醛是果香韵的特征成分,芳樟醇是花香韵的特征成分,乙酸芳樟酯是木香韵的特征成分,α-松油醇是青香韵的特征成分,异胡薄荷醇是药草香韵的特征成分;从香气风格特征雷达图来看,香紫苏精油的主要香韵为药草香、青香和木香,其次为花香和果香,与感官评价结果相吻合。
关键词(KeyWords): 香紫苏精油;香气活力值(OAV);特征香气成分;分析
基金项目(Foundation): 国家自然科学基金青年基金项目(81903507)
作者(Author): 吴继忠,帖金鑫,李石头,许高燕,刘崇盛,田雨农,廖付,杨靖
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