Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage
As a semifermented tea, oolong is exceedingly popular worldwide for its elegant, flowery aroma and mellow, rich taste. However, recent marketing trends for old oolong teas and their chemical quality largely remain unexplored. In this study, we applied widely targeted metabolomics using ultra-perform...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/23/7278 |
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| author | Cuiyun Hong Wenjie Yue Qingyu Shen Wenhua Wang Hongyan Meng Ying Guo Wenjiang Xu Yaling Guo |
| author_facet | Cuiyun Hong Wenjie Yue Qingyu Shen Wenhua Wang Hongyan Meng Ying Guo Wenjiang Xu Yaling Guo |
| author_sort | Cuiyun Hong |
| collection | DOAJ |
| description | As a semifermented tea, oolong is exceedingly popular worldwide for its elegant, flowery aroma and mellow, rich taste. However, recent marketing trends for old oolong teas and their chemical quality largely remain unexplored. In this study, we applied widely targeted metabolomics using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) combined with multivariate analysis to investigate the chemical change of oolong teas in the aging process. With the increasing of store time, most nongalloylated catechins; tannins, including TFs and proanthocyanidins; flavonols and glycosylated flavonols; amino acids and their derivatives; nucleotides and their derivatives; and lots of alkaloids and phospholipids declined, while most fatty acids and organic acids increased, and galloylated catechins, GA, and caffeine were almost stable. The result also suggested that approximately seven years (but not an infinite extension) was a special period for oolong tea storage, which brings about excellent taste. |
| first_indexed | 2024-03-10T04:47:12Z |
| format | Article |
| id | doaj.art-44cba39a7d234717b02d79e6b860a1f3 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T04:47:12Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-44cba39a7d234717b02d79e6b860a1f32023-11-23T02:50:03ZengMDPI AGMolecules1420-30492021-11-012623727810.3390/molecules26237278Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term StorageCuiyun Hong0Wenjie Yue1Qingyu Shen2Wenhua Wang3Hongyan Meng4Ying Guo5Wenjiang Xu6Yaling Guo7Fujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaJinshan College, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaFujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaFujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaFujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaFujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaFujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen 361006, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaAs a semifermented tea, oolong is exceedingly popular worldwide for its elegant, flowery aroma and mellow, rich taste. However, recent marketing trends for old oolong teas and their chemical quality largely remain unexplored. In this study, we applied widely targeted metabolomics using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) combined with multivariate analysis to investigate the chemical change of oolong teas in the aging process. With the increasing of store time, most nongalloylated catechins; tannins, including TFs and proanthocyanidins; flavonols and glycosylated flavonols; amino acids and their derivatives; nucleotides and their derivatives; and lots of alkaloids and phospholipids declined, while most fatty acids and organic acids increased, and galloylated catechins, GA, and caffeine were almost stable. The result also suggested that approximately seven years (but not an infinite extension) was a special period for oolong tea storage, which brings about excellent taste.https://www.mdpi.com/1420-3049/26/23/7278chemical constituentsstore timeoolong teatargeted metabolomics |
| spellingShingle | Cuiyun Hong Wenjie Yue Qingyu Shen Wenhua Wang Hongyan Meng Ying Guo Wenjiang Xu Yaling Guo Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage Molecules chemical constituents store time oolong tea targeted metabolomics |
| title | Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage |
| title_full | Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage |
| title_fullStr | Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage |
| title_full_unstemmed | Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage |
| title_short | Widely Targeted Metabolomics Analysis Reveals Great Changes in Nonvolatile Metabolites of Oolong Teas during Long-Term Storage |
| title_sort | widely targeted metabolomics analysis reveals great changes in nonvolatile metabolites of oolong teas during long term storage |
| topic | chemical constituents store time oolong tea targeted metabolomics |
| url | https://www.mdpi.com/1420-3049/26/23/7278 |
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