Significant improvements in the characterization of volatile compound profiles in squid using simultaneous distillation-extraction and GCxGC-TOFMS
文献类型: 外文期刊
作者: Jin, Yafang 1 ; Deng, Yun 1 ; Yue, Jin 1 ; Zhao, Yanyun 1 ; Yu, Wenjuan 1 ; Liu, Zhidong 3 ; Huang, Hongliang 3 ;
作者机构: 1.Shanghai Jiao Tong Univ, Dept Food Sci & Technol, SJTU Bor Luh Food Safety Ctr, Shanghai 200240, Peoples R China
2.Oregon State Univ, Dept Food Sci & Technol, Corvallis, OR 97331 USA
3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
关键词: squid;volatile compounds;GCxGC-TOFMS;GC-MS;simultaneous distillation-extraction (SDE)
期刊名称:CyTA-Journal of Food ( 影响因子:2.255; 五年影响因子:2.381 )
ISSN: 1947-6337
年卷期: 2015 年 13 卷 3 期
页码:
收录情况: SCI
摘要: The profile of volatiles in squids was characterized using simultaneous distillation-extraction coupled with comprehensive two-dimensional gas chromatography (GC) and Time-of-Flight mass spectrometry (GCxGC-TOFMS). GCxGC-TOFMS improved the resolution and separation efficiency of the compounds; it not only separated the 52 compounds that co-elute in conventional GC-MS, but also allowed the identification of compounds that were not previously detected (e.g. 2-Octanol). The total contents of volatiles detected by GCxGC-TOFM were about 2.5-fold higher than those analyzed by GC-MS. Among 184 volatiles identified by GCxGC-TOFMS, 119 compounds were reported for the first time in squids, compared with the GC-MS data available in the literature. These volatile classes included aromatic hydrocarbons (39), aliphatic hydrocarbons (22), esters (21), aldehydes (20), alcohols (19), sulfo compounds (18), nitrogenous compounds (17), ketones (14), acids (6), furans (5) and phenols (3). This study proposes a methodology and presents data that could be used to determine the volatiles in seafood.
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