Survey of nutrients and quality assessment of crab paste by 1H NMR spectroscopy and multivariate data analysis

被引:19
作者
Ye YangFang [1 ]
Zhang LiMin [2 ]
Tang HuiRu [2 ]
Yan XiaoJun [1 ]
机构
[1] Ningbo Univ, Key Lab Appl Marine Biotechnol, Minist Educ, Ningbo 315211, Zhejiang, Peoples R China
[2] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
来源
CHINESE SCIENCE BULLETIN | 2012年 / 57卷 / 25期
基金
中国国家自然科学基金;
关键词
crab paste; Portunus trituberculatus; composition; nuclear magnetic resonance (NMR); multivariate data analysis (MDA); quality assessment; COMPOSITIONAL CHARACTERISTICS; DISCRIMINATION; SPECTROMETRY; METABONOMICS; EXTRACTS; FISH;
D O I
10.1007/s11434-012-5119-x
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Crab paste is a traditional and popular food for people in the coastal area of China. Visual inspection is currently the only method of quality assessment. We developed a new analytical method of a comprehensive survey of nutrients and quality assessment for crab paste based on a combination of H-1 NMR spectroscopy with multivariate data analysis. The aqueous extract of crab paste was dominated by amino acids, sugars, carboxylic acids, nucleotides and amines (including 19 first-time-reported compounds such as choline, uracil and guanosine). Two grades of crab paste had significant compositional differences in terms of amino acids, lactate, N-acetylglutamate, choline, dimethylamine, uridine, 1-methylnicotinamide and 2-pyridienmethanol. These results provided important information on the grade-dependence of crab-paste composition, and demonstrated that NMR-MDA was effective not only for the comprehensive survey of nutrients, but also for quality assessment of crab paste.
引用
收藏
页码:3353 / 3362
页数:10
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