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Shang H, Zhu C, Sun W. Widely targeted metabolomics analysis of different Wuyi Shuixian teas and association with taste attributes. Heliyon 2023; 9:e18891. [PMID: 37588613 PMCID: PMC10425894 DOI: 10.1016/j.heliyon.2023.e18891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023] Open
Abstract
There are two major types of Wuyi Shuixian teas with distinct flavor properties in the market: regular Shuixian, and Laocong Shuixian that is produced from old tea plants with higher sale price. However, the chemical composition difference between these two types of Shuixian teas is still unclear. In this study, the widely targeted metabonomics and sensory evaluation were carried out to investigate the metabolite profiles and the flavor properties of Laocong and regular Shuixian tea samples. The results of organoleptic evaluation showed the Laocong Shuixian teas achieved dramatically higher total scores of sensory quality than that of regular Shuixian, and the sour palate of Laocong Shuixian tea was much lower than that of regular Shuxian. A total of 692 metabolites were identified by using metabolic determination, 43 of which were different metabolites in Laocong Shuixian teas discriminated from regular Shuixian. The contents of caffeic acid, kaemperfin, genistin, quercetin 3-glycosides and p-coumaric acid-O-glycoside were abundantly present in regular Shuixian tea. The analysis on different metabolites and taste attributes showed that phenolic acidic compounds were the major contributors to the sour taste of regular Shuixian. This study interpreted the chemicals underlying the different taste properties of Laocong and regular Shuixian teas.
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Affiliation(s)
- Hu Shang
- College of Horticulture, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Fuzhou, PR China
| | - Chensong Zhu
- Fujian Xi Ming Tea Industry Co. Ltd, Shangwen Road, Fuzhou, PR China
| | - Weijiang Sun
- College of Horticulture, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Fuzhou, PR China
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Hu L, Chen D, Zhou W, Chen X, Zhang Q. Effects of Growth Period and Storage Methods on Primary Metabolite Contents and Antioxidant Activities of Morus alba L. Leaf. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010148. [PMID: 36615342 PMCID: PMC9821893 DOI: 10.3390/molecules28010148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/07/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
(1) Background: Mulberry leaves have been widely consumed due to their richness in bioactive substances and high antioxidant activity. The choice of storage method to ensure the quality of mulberry leaves is a challenge in the supply process. (2) Methods: The differences in primary metabolites of freeze-dried mulberry leaf powder after 30 days of storage under different storage conditions (i.e., vacuum or non-vacuum, 4 °C or room temperature) were investigated. (3) Results: A low temperature and vacuum had better preservation effects on the types and activity of the primary metabolites of mulberry leaves, with vacuum preservation being the best. However, the types of primary metabolites in mulberry leaves were significantly reduced after non-vacuum storage at room temperature compared to those with other storage methods. Among the metabolites detected, including dehydroascorbic acid, various phenolic acids, amino acids, lipids, and carbohydrates showed a significant decrease in their contents of more than 40%, and there was a significant increase in the contents of various compounds of the muconic acid biosynthetic pathway compared to those in other storage methods. Moreover, the antioxidant activity of mulberry leaves stored at room temperature under non-vacuum conditions was also significantly reduced. (4) Conclusions: Vacuum storage is the most ideal storage method for preserving mulberry leaves.
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Affiliation(s)
- Lei Hu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Dandan Chen
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Wei Zhou
- Guangdong Research and Development Center of Modern Agriculture (Woody Forage) Industrial Technology, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (W.Z.); (X.C.); (Q.Z.)
| | - Xiaoyang Chen
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (W.Z.); (X.C.); (Q.Z.)
| | - Qing Zhang
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
- College of Forestry and Landscape Architecture, Guangdong Province Research Center of Woody Forage Engineering Technology, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (W.Z.); (X.C.); (Q.Z.)
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Nan G, Zhang L, Liu Z, Liu Y, Du Y, Zhao H, Zheng H, Lin R, Yang G, Zheng S. Quantitative Determination of p-Cymene, Thymol, Neryl Acetate, and β-Caryophyllene in Different Growth Periods and Parts of Eupatorium fortunei Turcz. by GC-MS/MS. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:2174667. [PMID: 34381625 PMCID: PMC8352711 DOI: 10.1155/2021/2174667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/02/2021] [Accepted: 07/12/2021] [Indexed: 05/13/2023]
Abstract
Eupatorium fortunei Turcz. is a widely used Chinese herbal medicine in China. In this study, a gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS) method was developed and validated to simultaneously determine the contents of p-cymene, thymol, neryl acetate, and β-caryophyllene in roots, stems, and leaves of Eupatorium fortunei Turcz. harvested at different growth periods. All four constituents could be detected in leaves, three could be detected in stems except β-caryophyllene, and only thymol could be detected in roots. The order of the total contents of four constituents in different parts was leaves > stems > roots. It indicated that the leaves could be the proper medicinal parts of Eupatorium fortunei Turcz. The content of four constituents in leaves varied a lot among different growth periods and showed an M-shaped change trend with the growth of Eupatorium fortunei Turcz. The four constituents accumulated to the highest values in early July followed by mid-September. Accordingly, the best harvest time of Eupatorium fortunei Turcz. is early July and mid-September.
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Affiliation(s)
- Guanjun Nan
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Lina Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Zhengzheng Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yu Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yan Du
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Hongwen Zhao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Hongxia Zheng
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Rong Lin
- Department of Pharmacology, Xi'an Jiaotong University, Xi'an 710061, China
| | - Guangde Yang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Shaohua Zheng
- Department of Anesthesiology and Operation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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