机构地区: 华南理工大学轻工与食品学院
出 处: 《食品与发酵工业》 2011年第8期170-174,共5页
摘 要: 采用液液萃取法(LLE)、同时蒸馏萃取法(SDE)和吹扫捕集装置(Purge&Trap)提取了荔枝果醋产品的挥发性成分,通过气相色谱-质谱联用仪对挥发性成分进行分离鉴定,试验共鉴定出87种挥发性风味成分,其中酮类5种、醛类4种、醇类20种、酯类13种、酸类14种、含硫化合物3种、杂环类物质20种以及其他8种。研究结果表明,荔枝果醋产品的主要风味物质为醇、杂环、酸和酯类。 In this study, liquid-liquid extraction (LLE) , simultaneous steam distillation extraction (SDE) and purge-and-trap extraction method (Purge & Trap) were employed to separate and concentrate the volatile compounds in Litchi vinegar. The extracts were identified by means of gas chromatography-mass spectrometry (GC-MS) ,87 compounds were identified, including 5 ketones, 4 aldehydes, 20 alcohols, 13 esters, 14 acids,3 sulfur-containing compounds,20 heterocyclie compounds and the others 8. The results indicate that, the main flavor compounds are alcohols, heterocyclic compounds, esters and acids.