风干武昌鱼鱼肉辐照和高温灭菌后的挥发性成分分析  

Analysis of Volatiles in Air-drying Megalobrama amnblycephala Meat Sterilized with Irradiation and High Temperature

作　　者：李阳[1,2] 汪超[2] 胡建中[2] 廖李[1] 王俊[1] 汪兰[1] 吴文锦[1] 熊光权[1] 程薇[1] 李冬生[2] 乔宇[1] 

机构地区：[1]湖北省农业科学院农产品加工与核农技术研究所/湖北省农产品辐照工程技术中心,湖北武汉430064 [2]湖北工业大学/工业发酵湖北省协同创新中心,湖北武汉430068

出　　处：《核农学报》2014年第10期1847-1853,共7页Journal of Nuclear Agricultural Sciences

基　　金：国家自然科学基金青年科学基金(31201317);国家科技支撑课题(2010BAD01B07)

摘　　要：为了研究辐照和高温灭菌处理对风干武昌鱼鱼肉挥发性成分的影响,以风干武昌鱼为原料,对其分别进行2.2、4.4和6.6kGy剂量辐照及高温灭菌处理,并采用顶空-固相微萃取技术结合气质联用仪对挥发性成分进行鉴定。在风干武昌鱼、高温灭菌和三种剂量辐照的风干武昌鱼鱼肉中分别检测到53、27、35、46和42种成分。风干武昌鱼鱼肉挥发性成分中醛类、酮类和醇类所占比例最大,分别为42.31%、42.24%与8.05%。经过高温和三种剂量辐照的风干武昌鱼鱼肉总挥发性成分下降91.27%、5.23%、67.64%和35.26%。2.2kGy剂量辐照下己醛、2,5-辛二酮含量分别上升30.09%、33.13%;壬醛、1-辛烯-3-醇、反-2-辛烯醇的含量分别下降15.12%、2.41%、3.23%。因此,在挥发性成分的保留程度上,辐照灭菌要优于高温灭菌。这为选用合适的辐照灭菌保藏提供了试验数据。To study the effects of volatiles in Air-drying megalobrama amblycephala meat sterilized with irradiation and high temperature. The Air-drying Megalobrama amnblycephala was sterilized with irradiation（2.2,4.4 and 6.6kGy） and high temperature. The volatile components of Megalobrama amblycephala meat were extracted by headspaee solid phase microextraction and identified by gas chromatography-mass spectrometry. The results showed a total of 53,27,35, 46 and 42 kinds of compounds were detected in Air-drying Megalobrama amnblycephala, high temperature sterilized meat and irradiated meat. Aldehyde, ketone and alcohol was the largest part of volatile components in Air-drying Megalobrama amnblycephala. The volatile components of Air-drying Megalobrama amnblycephala treated with high temperature and irradiation decreased,91.27% ,5.23% ,67.64% and 35.26% , respectively. The content of hexane and 2,5 - Octanedione increased 30.09% and 33.13% , respectively. The content of nonanal, 1 - octen -3 - ol and （E） -2 -Octen- 1 -ol decreased 15. 12% ,2.41% ,3.23% ,respectively. Therefore, the extent of retention of volatile components, radiation sterilization is superior to high temperature sterilization. This study provides an experimental basis to select appropriate irradiation sterilization method of Air-drying megalobrama amnblycephala.

关 键 词：武昌鱼 风干 高温灭菌 辐照灭菌 挥发性成分 

分 类 号：TS254.1[轻工技术与工程—水产品加工及贮藏工程]