Determination of free fatty acids in Antarctic krill meals based on matrix solid phase dispersion

Chunyu Yang; Jian Li; Shimiao Wang; Yiran Wang; Jiao Jia; Wenfei Wu; Jiangning Hu; Qi Zhao

doi:10.1016/j.foodchem.2022.132620

Determination of free fatty acids in Antarctic krill meals based on matrix solid phase dispersion

Food Chem. 2022 Aug 1:384:132620. doi: 10.1016/j.foodchem.2022.132620. Epub 2022 Mar 4.

Authors

Chunyu Yang¹, Jian Li¹, Shimiao Wang¹, Yiran Wang¹, Jiao Jia¹, Wenfei Wu², Jiangning Hu², Qi Zhao³

Affiliations

¹ National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
² National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China.
³ National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China. Electronic address: zhaoqi@dlpu.edu.cn.

PMID: 35413776
DOI: 10.1016/j.foodchem.2022.132620

Abstract

Amino-modified mesoporous silicawas prepared by modifying mesoporous silica with 3-aminopropyltriethoxysilane and used as adsorbents in matrix solid-phase dispersion (MSPD) to analyze free fatty acids (FFAs) in krill meals for the first time. The adsorption-desorption experiments and Fourier-transform infrared spectroscopy showed amino-modified mesoporous silica with ordered mesoporous structure was successfully synthesized. The adsorption experiments including static and dynamic adsorption showed thatabsorption capacity of amino-modified mesoporous silica towards FFAs was better than that of aminated silicon microspheres at all concentrations. Under optimal extraction conditions, outstanding linearity (0.1-12000 nmol g^-1), low LODs (0.05-1.25 nmol g^-1), satisfactory recoveries (82.17-96.43%) and precisions (0.19-5.26%) were obtained. Moreover, the application of MSPD for FFAs analysis avoided complicated lipid extraction procedures and accomplished the homogenization, crushing, extraction and cleaning of the samples in one step. Consequently, this approach provides an alternative choice to the existing approach for analyzing FFAs in solid and semi-solid samples.

Keywords: Antarctic krill meals; Free fatty acids; Matrix solid phase dispersion; NH(2)-SBA-15.

MeSH terms

Adsorption
Animals
Chromatography, High Pressure Liquid / methods
Euphausiacea*
Fatty Acids, Nonesterified
Meals
Silicon Dioxide / chemistry
Solid Phase Extraction* / methods
Spectroscopy, Fourier Transform Infrared

Substances

Fatty Acids, Nonesterified
Silicon Dioxide