The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea

In the study, the effects of agitating parameters (different agitating rates and time) on the aroma and taste profiles of matcha tea were systematically investigated by the combination of untargeted metabolomics and chemometrics. The aroma profiles of matcha tea agitated at low rates (500 rpm) and f...

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Main Authors: Siying Li, Hehe Tian, Guilong Zhu, Zhenbo Wei
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Current Research in Food Science
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Online Access:http://www.sciencedirect.com/science/article/pii/S2665927124001692
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author Siying Li
Hehe Tian
Guilong Zhu
Zhenbo Wei
author_facet Siying Li
Hehe Tian
Guilong Zhu
Zhenbo Wei
author_sort Siying Li
collection DOAJ
description In the study, the effects of agitating parameters (different agitating rates and time) on the aroma and taste profiles of matcha tea were systematically investigated by the combination of untargeted metabolomics and chemometrics. The aroma profiles of matcha tea agitated at low rates (500 rpm) and for 30 s were more richness than that agitated with other parameters by sensory analysis and gas chromatography-ion mobility spectrometry. The key aroma compounds contributed to the sensory differences of matcha tea agitated at different rates and time were analyzed by gas chromatography-mass spectrometry and partial least square-discriminate analysis (PLS-DA), which were further verified by the triangle test. Thereinto, 2,4-decadienal associated with the sweet, brown and seaweed aroma significantly affected the aroma profiles of matcha tea with different agitating rates and time. The levels of bitterness and astringency were also higher in matcha tea with low agitating rates and time by sensory evaluation, which were attributed to the variations of phenolic compounds. Flavonol glycosides, gallic acid and (−)-gallocatechin were determined the key compound to the taste differences of matcha tea with different agitating parameters by the analysis of PLS-DA based on the results of high performance liquid chromatography and the sensory verification. And flavonol glycosides were mainly contributed to the bitterness and astringency, and gallic acid and (−)-gallocatechin influenced the umami and sweetness of matcha tea. Consequently, agitation has the potential to affect the sensory profiles of matcha tea by changing aroma and taste substances.
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spelling doaj-art-713ee2f0fb874af6980aaa6bb168a0cc2024-12-13T11:03:12ZengElsevierCurrent Research in Food Science2665-92712024-01-019100843The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha teaSiying Li0Hehe Tian1Guilong Zhu2Zhenbo Wei3Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China; Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang Province, Department of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, PR ChinaDepartment of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR ChinaCollege of Life Science and Engineering, Northwest MinZu University, Lanzhou, 730124, PR ChinaDepartment of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China; Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang Province, Department of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, PR China; Corresponding author. Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China.In the study, the effects of agitating parameters (different agitating rates and time) on the aroma and taste profiles of matcha tea were systematically investigated by the combination of untargeted metabolomics and chemometrics. The aroma profiles of matcha tea agitated at low rates (500 rpm) and for 30 s were more richness than that agitated with other parameters by sensory analysis and gas chromatography-ion mobility spectrometry. The key aroma compounds contributed to the sensory differences of matcha tea agitated at different rates and time were analyzed by gas chromatography-mass spectrometry and partial least square-discriminate analysis (PLS-DA), which were further verified by the triangle test. Thereinto, 2,4-decadienal associated with the sweet, brown and seaweed aroma significantly affected the aroma profiles of matcha tea with different agitating rates and time. The levels of bitterness and astringency were also higher in matcha tea with low agitating rates and time by sensory evaluation, which were attributed to the variations of phenolic compounds. Flavonol glycosides, gallic acid and (−)-gallocatechin were determined the key compound to the taste differences of matcha tea with different agitating parameters by the analysis of PLS-DA based on the results of high performance liquid chromatography and the sensory verification. And flavonol glycosides were mainly contributed to the bitterness and astringency, and gallic acid and (−)-gallocatechin influenced the umami and sweetness of matcha tea. Consequently, agitation has the potential to affect the sensory profiles of matcha tea by changing aroma and taste substances.http://www.sciencedirect.com/science/article/pii/S2665927124001692Matcha teaAgitationSensory panel testFlavor substancePartial least square-discriminate analysis
spellingShingle Siying Li
Hehe Tian
Guilong Zhu
Zhenbo Wei
The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
Current Research in Food Science
Matcha tea
Agitation
Sensory panel test
Flavor substance
Partial least square-discriminate analysis
title The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
title_full The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
title_fullStr The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
title_full_unstemmed The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
title_short The application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
title_sort application of untargeted metabolomics coupled with chemometrics for the analysis of agitation effects on the sensory profiles of matcha tea
topic Matcha tea
Agitation
Sensory panel test
Flavor substance
Partial least square-discriminate analysis
url http://www.sciencedirect.com/science/article/pii/S2665927124001692
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