Analysis of ethanol in soy sauce using electronic nose for halal food certification |
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Authors: | Su Won Park Soo Jin Lee You Sin Sim Jin Young Choi Eun Young Park Bong Soo Noh |
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Affiliation: | 1.Department of Food Science and Technology,Seoul Women’s University,Seoul,Korea;2.Division of Industry Services,Korean Food Research Institute,Gyenggi,Korea;3.Division of Food Science and Culinary Arts,Shinhan University,Gyenggi,Korea;4.Department of Food and Nutrition,Korea Christian University,Seoul,Korea |
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Abstract: | The purpose of this study was to analyze ethanol content in soy sauce using mass spectrometry (MS) with electronic nose (e-nose) to determine if MS e-nose can replace gas chromatographic analysis for halal certification. Gas chromatography–flame ionization detector (GC-FID), the standard method of ethanol content, was used to analyze 24 different kinds of soy sauce. Ethanol was detected from 13 soy sauce samples in the concentration range of 0.0004–1.7wt%. The MS e-nose data were analyzed by discriminant function analysis (DFA). Based on an addition method, the results were more than 96.6% accurate when the ethanol concentrations were greater than 0.5%. A high correlation between the first score of the DFA plot and the ethanol concentration was observed. Thus, mass spectrometry based on e-nose is an efficient method for determining ethanol as a primary screening tool for halal certification. |
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