The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography

Green tea leaves contain antioxidants such as catechin and caffeine, which can speed up metabolism, and helps break down excess fat. However, there are concerns that overconsumption of catechin and caffeine could cause liver toxicity and kidney failure, respectively, to the consumers. This study inv...

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Published in:Malaysian Journal of Chemistry
Main Author: Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
Format: Article
Language:English
Published: Malaysian Institute of Chemistry 2023
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181580795&doi=10.55373%2fmjchem.v25i5.57&partnerID=40&md5=2d64a0ea82684adebd49ccc7e357815e
id 2-s2.0-85181580795
spelling 2-s2.0-85181580795
Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
2023
Malaysian Journal of Chemistry
25
5
10.55373/mjchem.v25i5.57
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181580795&doi=10.55373%2fmjchem.v25i5.57&partnerID=40&md5=2d64a0ea82684adebd49ccc7e357815e
Green tea leaves contain antioxidants such as catechin and caffeine, which can speed up metabolism, and helps break down excess fat. However, there are concerns that overconsumption of catechin and caffeine could cause liver toxicity and kidney failure, respectively, to the consumers. This study involved the quantitative analysis of catechin and caffeine in three different brands of green tea teabag and two different brands of green tea capsule using High-Performance Liquid Chromatography (HPLC). All standards were extracted using methanol, dissolved in the mobile phase of deionized water and acetonitrile (30:70 v/v), analysed at 270 nm in triplicates using the HPLC-DAD system. The data interpretation was conducted using standard calibration plot with correlation coefficient for catechin and caffeine of 0.9823 and 0.9856, respectively. Teabag samples were labelled A, B, and C, while capsules samples were labelled D and E. The highest amount of catechin (7274.2679 mg) and caffeine (2253.8581 mg) was found in Sample E. In Sample D, only 1.1561 mg of caffeine was detected and no catechin was detected which probably due to high level of detection (LOD) and quantification (LOQ). The analysis of catechin and caffeine using HPLC was proven to be reliable, simple, sensitive, and rapid. © 2023 Malaysian Institute of Chemistry. All rights reserved.
Malaysian Institute of Chemistry
15112292
English
Article

author Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
spellingShingle Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
author_facet Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
author_sort Mohd Affandi A.N.; Wan Ibrahim W.N.; Abdul Hamid H.A.; Hamzah N.; Hadzir N.M.
title The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
title_short The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
title_full The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
title_fullStr The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
title_full_unstemmed The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
title_sort The Analysis of Catechin and Caffeine in Green Tea Capsules and Teabags using High-Performance Liquid Chromatography
publishDate 2023
container_title Malaysian Journal of Chemistry
container_volume 25
container_issue 5
doi_str_mv 10.55373/mjchem.v25i5.57
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181580795&doi=10.55373%2fmjchem.v25i5.57&partnerID=40&md5=2d64a0ea82684adebd49ccc7e357815e
description Green tea leaves contain antioxidants such as catechin and caffeine, which can speed up metabolism, and helps break down excess fat. However, there are concerns that overconsumption of catechin and caffeine could cause liver toxicity and kidney failure, respectively, to the consumers. This study involved the quantitative analysis of catechin and caffeine in three different brands of green tea teabag and two different brands of green tea capsule using High-Performance Liquid Chromatography (HPLC). All standards were extracted using methanol, dissolved in the mobile phase of deionized water and acetonitrile (30:70 v/v), analysed at 270 nm in triplicates using the HPLC-DAD system. The data interpretation was conducted using standard calibration plot with correlation coefficient for catechin and caffeine of 0.9823 and 0.9856, respectively. Teabag samples were labelled A, B, and C, while capsules samples were labelled D and E. The highest amount of catechin (7274.2679 mg) and caffeine (2253.8581 mg) was found in Sample E. In Sample D, only 1.1561 mg of caffeine was detected and no catechin was detected which probably due to high level of detection (LOD) and quantification (LOQ). The analysis of catechin and caffeine using HPLC was proven to be reliable, simple, sensitive, and rapid. © 2023 Malaysian Institute of Chemistry. All rights reserved.
publisher Malaysian Institute of Chemistry
issn 15112292
language English
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