A hydrophilic interaction chromatography-tandem mass spectrometry method for amino acid profiling in mussels

被引:29
作者
Tsochatzis, Emmanouil D. [1 ,5 ]
Begou, Olga [2 ]
Gika, Helen G. [1 ,6 ]
Karayannakidis, Panayotis [3 ]
Kalogiannis, Stavros [4 ]
机构
[1] Aristotle Univ Thessaloniki, Dept Chem Engn, Thessaloniki 57124, Greece
[2] Aristotle Univ Thessaloniki, Dept Chem, Thessaloniki 57124, Greece
[3] Alexander Technol Educ Inst Thessaloniki, Dept Food Technol, POB 141, GR-57400 Thessaloniki, Greece
[4] Alexander Technol Educ Inst Thessaloniki, Dept Nutr & Dietet, POB 141, GR-57400 Thessaloniki, Greece
[5] European Commiss, Joint Res Ctr, Inst Hlth & Consumer Protect, Via Enrico Fermi 2749, I-20127 Ispra, VA, Italy
[6] Aristotle Univ Thessaloniki, Sch Med, Thessaloniki GREECE, Greece
来源
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES | 2017年 / 1047卷
关键词
HILIC; Tandem mass spectrometry; Free amino acids; Total amino acids; Mussels; PERFORMANCE LIQUID-CHROMATOGRAPHY; BIOGENIC-AMINES; MYTILUS-GALLOPROVINCIALIS; RAPID-DETERMINATION; DERIVATIZATION; SAMPLES; CHEESE; UHPLC; HONEY; POLAR;
D O I
10.1016/j.jchromb.2016.05.018
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A UHPLC-HILIC-tandem MS method has been developed and validated for the quantification of 21 amino acids (20 protein amino acids and cystine) in their free form (FAA) and as protein constituents (total amino acids, TAA) in a rich protein food matrix such as lyophilized mussels (Mytilus galloprovincialis) samples. FAA were analyzed after suspending the samples in the presence of trichloroacetic acid in order to prevent dissolving the proteins, while TAA were determined after acid hydrolysis with 6 M HCI in the presence of 4% v/v thioglycolic acid as a reducing agent. In hydrolysed samples 17 amino acids could be determined since tryptophan, cysteine, cystine and asparagine were degraded during acid hydrolysis. Linear regression coefficients (R-2) were above 0.99 for all amino acids. Accuracy and precision, expressed as recovery (%) and relative standard deviation (RSD, %) were in acceptable levels, ranging from 78.2 to 123.3% and below 15%, respectively for both FAA and TM. Uncertainty was also below 12% for FM and below 22% for TAA. Sensitivity of the method was high with LOD values ranging from 0.003 to 0.034 g/100 g for FAA and 0.001 to 0.004 g/100 g for TM, while LOQ, ranged from 0.009 to 0.104 g/100 g for FM and 0.002 to 0.011 g/100 g for TM. The method proved to be a fast and reliable tool for acquiring information on free and total amino acids profile in high protein content foodstuffs such as mussels. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:197 / 206
页数:10
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