文章摘要
周梦海,李慷,张文博,俞雪钧,湛嘉,吴宗文,刘利平.不同养殖模式下罗非鱼养殖水体异味物质的含量及其变化[J].上海海洋大学学报,2016,25(4):528-533.
ZHOU Menghai,LI Kang,ZHANG Wenbo,YU Xuejun,ZHAN Jia,WU Zongwen,LIU Liping.Concentration and variations of odor substances geosmin and 2-methylisoborneol in different tilapia culture waters in south China[J].Journal of Shanghai Ocean University,2016,25(4):528-533.
不同养殖模式下罗非鱼养殖水体异味物质的含量及其变化
Concentration and variations of odor substances geosmin and 2-methylisoborneol in different tilapia culture waters in south China
投稿时间:2015-04-23  修订日期:2015-08-02
DOI:10.12024/jsou.20150401418
中文关键词: 罗非鱼  异味  土臭素  二甲基异莰醇  吹扫捕集-气相色谱-质谱联用
英文关键词: tilapia  off-flavor  geosmin  2-methylisoborneol  P&T-GC-MS
基金项目:欧盟委员会第七框架合作项目(222889);四川省科技成果转化项目(2014CC0054)
作者单位E-mail
周梦海 上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306  
李慷 上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306  
张文博 上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306  
俞雪钧 宁波检验检疫科学技术研究院, 浙江 宁波 315012  
湛嘉 宁波检验检疫科学技术研究院, 浙江 宁波 315012  
吴宗文 通威股份有限公司, 四川 成都 610041  
刘利平 上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306 lp-liu@shou.edu.cn 
摘要点击次数: 3931
全文下载次数: 2337
中文摘要:
      为获知不同罗非鱼养殖方式下水体中异味物质组成及含量变化,于2013年5月、8月和10月期间对海南文昌1座水库和6处全投料精养池塘,以及广东茂名3座水库、6处全投料精养池塘和6处立体养殖池塘(罗非鱼和家猪立体养殖)的养殖水体进行采样,利用吹扫捕集结合气相色谱-质谱联用技术(P&T-GC-MS)对水体主要土腥味物质:土臭素(geosmin, GSM)和二甲基异莰醇(2-methylisoborneol, 2-MIB)进行定量分析检测。结果发现:2-MIB为两地养殖水体中主要致嗅物质,含量为0~65.61μg/L;少量采样点检出GSM,含量为0~11.77μg/L。在3种养殖模式(水库、精养池塘和鱼猪立体养殖池塘)中,两种异味物质的分布均为水库最低,精养池塘次之,鱼猪立体养殖池塘最高,且两两之间存在显著差异(P<0.05)。不同养殖时间及养殖地区间异味浓度差异不显著。结果表明,养殖模式会对养殖水体的异味物质含量造成影响,鱼猪立体池塘养殖模式的异味物质来源复杂,更易产生严重的土腥味。
英文摘要:
      Off-flavor in cultured fish has been causing more and more attention. To learn composition and concentration of off-flavor substances in tilapia culture waters under different culture patterns, this paper monitored concentration of geosmin and 2-methylisoborneol, two main odor substances in water by using purge and trap pre-treatment with gas chromatography-mass spectrometry (P&T-GC-MS). 7 farms including one reservoir and 6 intensive culture ponds were sampled in Wenchang, Hainan province, as well as 15 farms including 3 reservoirs, 6 intensive ponds and 6 vertically-integrated ponds (pig and tilapia) in Maoming, Guangdong province in May, August and October, 2013. The results showed that 2-MIB is the main odor substance in the waters, and the concentration in water ranges from 0-65.61 μg/L, while concentration of GSM in water ranges from 0-11.77 μg/L. In the three culture patterns, the concentration of the two odor substances in reservoirs is the lowest, followed by intensive ponds, whereas the integrated ponds have the highest. There are significant differences between two culture modes (P<0.05). There is no significant difference among culture months and sites. The results indicate that different culture patterns could affect the odor components in water. Sources of odor substances from vertically-integrated ponds are more complex, which are easy to produce off-flavor.
HTML 查看全文   
关闭