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Wang B, Pang Q, Zhou Y, Yang J, Sadeghnezhad E, Cheng Y, Zhou S, Jia H. Receptor-like kinase ERECTA negatively regulates anthocyanin accumulation in grape. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112172. [PMID: 38942388 DOI: 10.1016/j.plantsci.2024.112172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Receptor-like kinase (ERECTA, ER) is essential for mediating growth, development, and stress response signaling pathway in plants. In this study, we investigated the effect of VvER on anthocyanin synthesis as a regulatory factor in transgenic grape callus in response to chilling stress. Results showed that overexpression of VvER reduced the expression of transcription factors VvMYBA1, VvMYB5b, VvMYC2, and VvWDR1, as well as the structural genes VvCHS, VvCHI, VvDFR, VvLDOX, and VvUFGT, and inhibited the anthocyanins synthesis of grape callus at 25℃. VvER reduced proline content and antioxidant enzymes activities of superoxide dismutase (SOD) and peroxidase (POD), and inhibited the expression of anthocyanin synthesis genes to reduce the cold resistance of grape callus. In transgenic Arabidopsis, overexpression of VvER promoted the elongation of Arabidopsis rosettes and sprigs. Under strong light treatment, VvER inhibited the accumulation of anthocyanins in Arabidopsis; Transient expression in strawberry fruit showed that VvER inhibited the synthesis of anthocyanin in strawberry fruit by inhibiting the expression of FaCHI, FaCHS, FaDFR and FaUFGT under low temperature treatment at 10°C, but not under the normal temperature of 25℃. Using Yeast two-hybrid, we found that VvER interacted with transcription factor proteins including VvMYBA1, VvMYB5b and VvWDR1. Furthermore, VvER led to the repression of VvUFGT promoter activity and decreased the anthocyanin biosynthesis genes expression by downregulation MBW complex activity. Totally, VvER could inhibit anthocyanin biosynthesis and involve in the grape plant susceptible to cold stress for grape cultivation in northern China.
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Affiliation(s)
- Bo Wang
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China
| | - Qianqian Pang
- Key Laboratory of Genetics and Fruit Development, College of Horticulture, Nanjing Agricultural University, 1st Weigang Rd., Nanjing 210095, China
| | - Yunzhi Zhou
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China
| | - Jungui Yang
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China
| | | | - Yuanxin Cheng
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China
| | - Sihong Zhou
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China
| | - Haifeng Jia
- College of Agriculture, Guangxi University, No. 100, Daxue Road, Nanning, Guangxi 530004, China.
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Liang S, Gao Y, Granato D, Ye JH, Zhou W, Yin JF, Xu YQ. Pruned tea biomass plays a significant role in functional food production: A review on characterization and comprehensive utilization of abandon-plucked fresh tea leaves. Compr Rev Food Sci Food Saf 2024; 23:e13406. [PMID: 39030800 DOI: 10.1111/1541-4337.13406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/18/2024] [Accepted: 06/21/2024] [Indexed: 07/22/2024]
Abstract
Tea is the second largest nonalcoholic beverage in the world due to its characteristic flavor and well-known functional properties in vitro and in vivo. Global tea production reaches 6.397 million tons in 2022 and continues to rise. Fresh tea leaves are mainly harvested in spring, whereas thousands of tons are discarded in summer and autumn. Herein, pruned tea biomass refers to abandon-plucked leaves being pruned in the non-plucking period, especially in summer and autumn. At present, no relevant concluding remarks have been made on this undervalued biomass. This review summarizes the seasonal differences of intrinsic metabolites and pays special attention to the most critical bioactive and flavor compounds, including polyphenols, theanine, and caffeine. Additionally, meaningful and profound methods to transform abandon-plucked fresh tea leaves into high-value products are reviewed. In summer and autumn, tea plants accumulate much more phenols than in spring, especially epigallocatechin gallate (galloyl catechin), anthocyanins (catechin derivatives), and proanthocyanidins (polymerized catechins). Vigorous carbon metabolism induced by high light intensity and temperature in summer and autumn also accumulates carbohydrates, such as soluble sugars and cellulose. The characteristics of abandon-plucked tea leaves make them not ideal raw materials for tea, but suitable for novel tea products like beverages and food ingredients using traditional or hybrid technologies such as enzymatic transformation, microbial fermentation, formula screening, and extraction, with the abundant polyphenols in summer and autumn tea serving as prominent flavor and bioactive contributors.
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Affiliation(s)
- Shuang Liang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ying Gao
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, China
| | - Daniel Granato
- Bioactivity and Applications Lab, Department of Biological Sciences, School of Natural Sciences Faculty of Science and Engineering, University of Limerick, Limerick, Ireland
| | - Jian-Hui Ye
- Zhejiang University Tea Research Institute, Hangzhou, China
| | - Weibiao Zhou
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Jun-Feng Yin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, China
| | - Yong-Quan Xu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, China
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3
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de Moura C, Vieira do Carmo MA, Xu YQ, Azevedo L, Granato D. Anthocyanin-rich extract from purple tea: Chemical stability, cellular antioxidant activity, and protection of human erythrocytes and plasma. Curr Res Food Sci 2024; 8:100701. [PMID: 38435275 PMCID: PMC10906145 DOI: 10.1016/j.crfs.2024.100701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 03/05/2024] Open
Abstract
This study aimed to obtain an anthocyanin extract from the purple leaves of Camellia sinensis cv. Zijuan using a sustainable, non-toxic, and low-cost solid-liquid extraction, employing an aqueous citric acid solution (0.2 mol/L) as the extracting solvent, and to evaluate its chemical stability at different pH values, as well as its in vitro antioxidant properties in chemical and biological terms. The phenolic composition, in vitro antioxidant activity, and the stability of anthocyanins against pH, temperature, and light of the crude extract (CE) were evaluated, as well as the phenolic composition and bioactivity in the crude lyophilised extract (CLE). In the direct/reverse spectrophotometric titration, anthocyanins showed structural changes between pH 2 and 10, and reversibility of 80%. The antioxidant activity against the DPPH radical showed inhibition percentages of 73% (pH 4.5) to 39% (pH 10). Thermal stability was observed at 60 °C, and prolonged exposure of the extract to light caused photodegradation of the anthocyanins. Thirty-three phenolic compounds, including anthocyanins and catechins, were quantified in the CLE by UPLC-ESI-MS and HPLC, totalling 40.18 mg/g. CLE reduced cell viability (IC50 from 18.1 to 52.5 μg GAE/mL), exerted antiproliferative (GI50 from 0.0006 to 17.0 μg GAE/mL) and cytotoxic (LC50 from 33.2 to 89.9 μg GAE/mL) effects against A549 (human lung adenocarcinoma epithelial cells), HepG2 (hepatocellular carcinoma), HCT8 (ileocecal colorectal adenocarcinoma), and Eahy926 (somatic cell hybrid cells); and showed protection against oxidation of human plasma (635 ± 30 mg AAE/g). The results showed the diversity of compounds in the extracts and their potential for technological applications; however, temperature, pH, and light must be considered to avoid diminishing their bioactivity.
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Affiliation(s)
- Cristiane de Moura
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Mariana Araújo Vieira do Carmo
- LANTIN – Laboratory of Nutritional and Toxicological Analyses in vitro and in vivo, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 714, 37130-000, Alfenas, Brazil
| | - Yong-Quan Xu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, 9 South Meiling Road, Hangzhou, 310008, China
| | - Luciana Azevedo
- LANTIN – Laboratory of Nutritional and Toxicological Analyses in vitro and in vivo, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 714, 37130-000, Alfenas, Brazil
| | - Daniel Granato
- Bioactivity & Applications Lab, Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, V94 T9PX, Limerick, Ireland
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Bai Y, Zou R, Zhang H, Li J, Wu T. Functional Characterization of CsF3Ha and Its Promoter in Response to Visible Light and Plant Growth Regulators in the Tea Plant. PLANTS (BASEL, SWITZERLAND) 2024; 13:196. [PMID: 38256750 PMCID: PMC10820056 DOI: 10.3390/plants13020196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
Flavanone 3-hydroxylase (F3H) catalyzes trihydroxyflavanone formation into dihydroflavonols in the anthocyanin biosynthesis pathway, serving as precursors for anthocyanin synthesis. To investigate the CsF3Ha promoter's regulation in the 'Zijuan' tea plant, we cloned the CsF3Ha gene from this plant. It was up-regulated under various visible light conditions (blue, red, and ultraviolet (UV)) and using plant growth regulators (PGRs), including abscisic acid (ABA), gibberellic acid (GA3), salicylic acid (SA), ethephon, and methyl jasmonate (MeJA). The 1691 bp promoter sequence was cloned. The full-length promoter P1 (1691 bp) and its two deletion derivatives, P2 (890 bp) and P3 (467 bp), were fused with the β-glucuronidase (GUS) reporter gene, and were introduced into tobacco via Agrobacterium-mediated transformation. GUS staining, activity analysis, and relative expression showed that visible light and PGRs responded to promoter fragments. The anthocyanin content analysis revealed a significant increase due to visible light and PGRs. These findings suggest that diverse treatments indirectly enhance anthocyanin accumulation in 'Zijuan' tea plant leaves, establishing a foundation for further research on CsF3Ha promoter activity and its regulatory role in anthocyanin accumulation.
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Affiliation(s)
- Yan Bai
- School of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650224, China; (Y.B.); (H.Z.); (J.L.)
| | - Rui Zou
- Qiannan Academy of Agricultural Sciences, Duyun 558000, China;
| | - Hongye Zhang
- School of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650224, China; (Y.B.); (H.Z.); (J.L.)
| | - Jiaying Li
- School of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650224, China; (Y.B.); (H.Z.); (J.L.)
| | - Tian Wu
- School of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650224, China; (Y.B.); (H.Z.); (J.L.)
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Li Y, Chen Y, Chen J, Shen C. Flavonoid metabolites in tea plant (Camellia sinensis) stress response: Insights from bibliometric analysis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107934. [PMID: 37572493 DOI: 10.1016/j.plaphy.2023.107934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/21/2023] [Accepted: 08/02/2023] [Indexed: 08/14/2023]
Abstract
In the context of global climate change, tea plants are at risk from elevating environmental stress factors. Coping with this problem relies upon the understanding of tea plant stress response and its underlying mechanisms. Over the past two decades, research in this field has prospered with the contributions of scientists worldwide. Aiming in providing a comprehensive perspective of the research field related to tea plant stress response, we present a bibliometric analysis of the this area. Our results demonstrate the most studied stresses, global contribution, authorship and collaboration, and trending research topics. We highlight the importance of flavonoid metabolites in tea plant stress response, particularly their role in maintaining redox homeostasis, yield, and adjusting tea quality under stress conditions. Further research on the flavonoid response under various stress conditions can promote the development of cultivation measures, thereby improving stress resistance and tea quality.
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Affiliation(s)
- YunFei Li
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, 410128, China
| | - YiQin Chen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, 410128, China
| | - JiaHao Chen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, 410128, China
| | - ChengWen Shen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha, 410128, China.
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Deka H, Sarmah PP, Chowdhury P, Rajkhowa K, Sabhapondit S, Panja S, Karak T. Impact of the Season on Total Polyphenol and Antioxidant Properties of Tea Cultivars of Industrial Importance in Northeast India. Foods 2023; 12:3196. [PMID: 37685130 PMCID: PMC10486918 DOI: 10.3390/foods12173196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/01/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Tocklai vegetative (TV) cultivars are extensively planted in the tea-growing regions of Northeast India. The present investigation explores the impact of season on the total polyphenol (TP) content and the antioxidant activity of thirty-one TV cultivars (TV1-TV31) and four other commercially popular cultivars, namely, Betjan, Kharijan, S.3A/3, and T.3E/3. The TP content of the cultivars was observed to be highest in the monsoon season, with values ranging from 230.57 to 283.53 mg g-1. In the pre-monsoon season and autumn, the TP content ranged from 197.87 to 256.77 mg g-1 and from 169.97 to 223.50 mg g-1, respectively. Antioxidant activity was measured through DPPH, ABTS, FRAP, and lipid peroxidation inhibition assays. The cultivars showed the highest antioxidant activity in the monsoon in tandem with TP content. A bivariate correlation indicated a highly significant (p ≤ 0.01) positive correlation of antioxidant activity with TP content (R2 = 0.83-0.96).
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Affiliation(s)
- Himangshu Deka
- Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India; (P.P.S.); (K.R.); (S.S.)
| | - Podma Pollov Sarmah
- Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India; (P.P.S.); (K.R.); (S.S.)
| | - Pritom Chowdhury
- Biotechnology Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India;
| | - Kaberi Rajkhowa
- Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India; (P.P.S.); (K.R.); (S.S.)
| | - Santanu Sabhapondit
- Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India; (P.P.S.); (K.R.); (S.S.)
| | - Saumik Panja
- Environment, Health and Safety, University of California, San Francisco 505 Parnassus Ave, San Francisco, CA 94143, USA;
| | - Tanmoy Karak
- Department of Soil Science, School of Agricultural Sciences, Nagaland University, Medziphema Campus, Medziphema 797106, Nagaland, India
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7
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Li XX, Li ZY, Zhu W, Wang YQ, Liang YR, Wang KR, Ye JH, Lu JL, Zheng XQ. Anthocyanin metabolism and its differential regulation in purple tea (Camellia sinensis). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107875. [PMID: 37451003 DOI: 10.1016/j.plaphy.2023.107875] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/17/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
Tea plants (Camellia sinensis) typically contain high-flavonoid phytochemicals like catechins. Recently, new tea cultivars with unique purple-colored leaves have gained attention. These purple tea cultivars are enriched with anthocyanin, which provides an interesting perspective for studying the metabolic flux of the flavonoid pathway. An increasing number of studies are focusing on the leaf color formation of purple tea and this review aims to summarize the latest progress made on the composition and accumulation of anthocyanins in tea plants. In addition, the regulation mechanism in its synthesis will be discussed and a hypothetical regulation model for leaf color transformation during growth will be proposed. Some novel insights are presented to facilitate future in-depth studies of purple tea to provide a theoretical basis for targeted breeding programs in leaf color.
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Affiliation(s)
- Xiao-Xiang Li
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Ze-Yu Li
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Wan Zhu
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Ying-Qi Wang
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Kai-Rong Wang
- General Agrotechnical Extension Station of Ningbo City, Ningbo, Zhejiang, 315000, China.
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
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Chen Y, Yang J, Meng Q, Tong H. Non-volatile metabolites profiling analysis reveals the tea flavor of "Zijuan" in different tea plantations. Food Chem 2023; 412:135534. [PMID: 36732104 DOI: 10.1016/j.foodchem.2023.135534] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023]
Abstract
Characteristic metabolites including tea polyphenols, amino acids, catechins, caffeine, sugars and anthocyanins were fully analyzed by high performance liquid chromatography (HPLC), gas chromatography tandem mass spectrometry (GC-MS) and ultra-high performance liquid chromatography (UHPLC)-ESI-tandem mass spectrometry (MS/MS), and showed significant differences among Zijuan tea from different plantations in Yunnan province (YN-ZJ), Qijiang (QJ-ZJ) and Ersheng (ES-ZJ) district, China, indicating that Zijuan is significantly influenced by growth conditions. Monosaccharides were the most abundant soluble sugars in YN-ZJ and ES-ZJ, while disaccharides was abundant in QJ-ZJ. d-galactose, d-mannose, d-sorbitol, inositol, d-glucose, d-galacturonic acid and raffinose involved in galactose metabolism were significantly changed (P < 0.05). Delphinidin, cyanidin, pelargonidin and their glycoside derivatives were the major anthocyanins, and showed significant differences among Zijuan samples. Flavonoids and procyanidins abundant in Zijuan provided more substrates for anthocyanins accumulation. This study presented comprehensive chemical profiling and characterized metabolites of Zijuan in different tea plantations.
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Affiliation(s)
- Yingjuan Chen
- Department of Tea Science, College of Food Science, Southwest University, Chongqing 400715, China.
| | - Juan Yang
- Tea Research Institute, Chongqing Academy of Agricultural Sciences, Yongchuan, Chongqing 402160, China
| | - Qing Meng
- Department of Tea Science, College of Food Science, Southwest University, Chongqing 400715, China
| | - Huarong Tong
- Department of Tea Science, College of Food Science, Southwest University, Chongqing 400715, China
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9
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Yang G, Meng Q, Shi J, Zhou M, Zhu Y, You Q, Xu P, Wu W, Lin Z, Lv H. Special tea products featuring functional components: Health benefits and processing strategies. Compr Rev Food Sci Food Saf 2023; 22:1686-1721. [PMID: 36856036 DOI: 10.1111/1541-4337.13127] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 12/08/2022] [Accepted: 01/31/2023] [Indexed: 03/02/2023]
Abstract
The functional components in tea confer various potential health benefits to humans. To date, several special tea products featuring functional components (STPFCs) have been successfully developed, such as O-methylated catechin-rich tea, γ-aminobutyric acid-rich tea, low-caffeine tea, and selenium-rich tea products. STPFCs have some unique and enhanced health benefits when compared with conventional tea products, which can meet the specific needs and preferences of different groups and have huge market potential. The processing strategies to improve the health benefits of tea products by regulating the functional component content have been an active area of research in food science. The fresh leaves of some specific tea varieties rich in functional components are used as raw materials, and special processing technologies are employed to prepare STPFCs. Huge progress has been achieved in the research and development of these STPFCs. However, the current status of these STPFCs has not yet been systematically reviewed. Here, studies on STPFCs have been comprehensively reviewed with a focus on their potential health benefits and processing strategies. Additionally, other chemical components with the potential to be developed into special teas and the application of tea functional components in the food industry have been discussed. Finally, suggestions on the promises and challenges for the future study of these STPFCs have been provided. This paper might shed light on the current status of the research and development of these STPFCs. Future studies on STPFCs should focus on screening specific tea varieties, identifying new functional components, evaluating health-promoting effects, improving flavor quality, and elucidating the interactions between functional components.
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Affiliation(s)
- Gaozhong Yang
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qing Meng
- College of Food Science, Southwest University, Chongqing, China
| | - Jiang Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Mengxue Zhou
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Yin Zhu
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Qiushuang You
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ping Xu
- Institute of Tea Science, Zhejiang University, Hangzhou, China
| | - Wenliang Wu
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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Liu PP, Feng L, Xu YQ, Zheng L, Yin P, Ye F, Gui AH, Wang SP, Wang XP, Teng J, Xue JJ, Gao SW, Zheng PC. Characterization of stale odor in green tea formed during storage: Unraveling improvements arising from reprocessing by baking. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Liu F, Wang Y, Corke H, Zhu H. Dynamic changes in flavonoids content during congou black tea processing. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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GÜLHAN A, ÇOKLAR H, AKBULUT M. Influence of drying method and infusion time on purple basil leaves tea. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2022. [DOI: 10.21448/ijsm.1116574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
In this study, purple basil leaves were dried in 3 different methods (oven, microwave, and shade drying) and then infused 5 different times in hot water at 90 oC. Analyses of total phenolic content, antioxidant activity, total monomeric anthocyanin content, and color parameters were performed on tea samples. When the analysis results were evaluated, the best results were determined in the tea samples prepared from the leaves dried in the oven and in the shade, at brewing times of 10 and 15 minutes. 45 minutes was the best infusion time for the tea sample prepared from microwave dried leaves. When the three different drying methods were compared, the shade drying method gave better results than the other drying methods. According to the highest values obtained from the analysis results, the effect of the functional compounds in the purple basil leaves on the tea was calculated. It was determined that the highest percentage of phenolic compounds in tea was found in the samples prepared by the shade drying method.
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Affiliation(s)
- Ayca GÜLHAN
- AKSARAY ÜNİVERSİTESİ, AKSARAY TEKNİK BİLİMLER MESLEK YÜKSEKOKULU
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Abdel-Aal ESM, Rabalski I, Mats L, Rai I. Identification and Quantification of Anthocyanin and Catechin Compounds in Purple Tea Leaves and Flakes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196676. [PMID: 36235212 PMCID: PMC9570566 DOI: 10.3390/molecules27196676] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
Tea is the first most popular beverage worldwide and is available in several selections such as black (fully oxidized), Oolong (partially oxidized) and green (non-oxidized), in addition to purple tea, an emerging variety derived from the same tea plant (Camellia sinensis). This study investigated purple tea leaves (non-oxidized) and flakes (water extractable) to thoroughly identify their composition of anthocyanins and catechins and to study the effect of a water extraction process on their compositional properties in comparison with green tea. Anthocyanin and catechin compounds were separated and quantified using UPLC, and their identity was confirmed using LC-MS/MS in positive and negative ionization modes. Delphinidin was the principal anthocyaninidin in purple tea, while cyanidin came in second. The major anthocyanin pigments in purple tea were delphinidin-coumaroyl-hexoside followed by delphinidin-3-galactoside and cyanidin-coumaroyl-hexoside. The water extraction process resulted in substantial reductions in anthocyanins in purple tea flakes. There were no anthocyanin compounds detected in green tea samples. Both purple and green tea types were rich in catechins, with green tea containing higher concentrations than purple tea. The main catechin in purple or green tea was epigallocatechin gallate (EGCG) followed by either epicatechin gallate (ECG) or epigallocatechin (EGC), subject to tea type. The extraction process increased the concentration of catechins in both purple and green tea flakes. The results suggest that purple tea holds promise in making healthy brews, natural colorants and antioxidants and/or functional ingredients for beverages, cosmetics and healthcare industries due to its high content of anthocyanins and catechins.
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Affiliation(s)
- El-Sayed M. Abdel-Aal
- Agriculture and Agri-Food Canada, Guelph Research and Development Centre, 93 Stone Road West, Guelph, ON N1G 5C9, Canada
- Correspondence: ; Tel.: +1-(226)-217-8079; Fax: +1-(226)-217-8181
| | - Iwona Rabalski
- Agriculture and Agri-Food Canada, Guelph Research and Development Centre, 93 Stone Road West, Guelph, ON N1G 5C9, Canada
| | - Lili Mats
- Agriculture and Agri-Food Canada, Guelph Research and Development Centre, 93 Stone Road West, Guelph, ON N1G 5C9, Canada
| | - Ishan Rai
- Asilia Inc., Mississauga, ON L5L 5Y7, Canada & Houston, TX 77073, USA
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Huang S, Chen H, Teng J, Wu Z, Huang L, Wei B, Xia N. Antihyperlipidemic effect and increased antioxidant enzyme levels of aqueous extracts from Liupao tea and green tea in vivo. J Food Sci 2022; 87:4203-4220. [PMID: 35982642 DOI: 10.1111/1750-3841.16274] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 06/17/2022] [Accepted: 07/12/2022] [Indexed: 12/16/2022]
Abstract
Liupao tea (fermented dark tea) may improve the active function of hyperlipidemia. Utilizing a hyperlipidemia Sprague-Dawley model and UPLC-MS/MS metabolomics, we examined how the effect of Liupao and green tea extracts on hyperlipidemia and antoxidant enzyme levels and compared their constituents. The results showed that the two types of tea could reduce the levels of total cholesterol (TC), total triglyceride, and low-density lipoprotein cholesterol (LDL-C); increase the contents of bile acids and cholesterol in feces; and improve catalase and glutathione peroxidase (GSH-Px) activities. Compared with the model control group, Liupao tea effectively reduced TC and LDL-C levels by 39.53% and 58.55% and increased GSH-Px activity in the liver by 67.07%, which was better than the effect of green tea. A total of 93 compounds were identified from two samples; the amounts of alkaloids and fatty acids increased compared with green tea, and ellagic acid, hypoxanthine, and theophylline with relatively high contents in Liupao tea had a significantly positive correlation with antihyperlipidemic and antioxidant effects. Therefore, Liupao tea had better antihyperlipidemic and antioxidant activities in vivo than green tea, which might be related to the relatively high content of some active substances.
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Affiliation(s)
- Shuoyuan Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Huan Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Jianwen Teng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Zhengmei Wu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Li Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Baoyao Wei
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Ning Xia
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
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15
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Liu D, Wang K, Xue X, Wen Q, Qin S, Suo Y, Liang M. The Effects of Different Processing Methods on the Levels of Biogenic Amines in Zijuan Tea. Foods 2022; 11:foods11091260. [PMID: 35563983 PMCID: PMC9103763 DOI: 10.3390/foods11091260] [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: 04/02/2022] [Revised: 04/20/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022] Open
Abstract
This study aimed to evaluate the effects of processing methods on the content of biogenic amines in Zijuan tea by using derivatization and hot trichloroacetic acid extraction with HPLC-UV. The results showed that the most abundant biogenic amine in the original leaves was butylamine, followed by ethylamine, methylamine, 1,7-diaminoheptane, histamine, tyramine, and 2-phenethylamine. However, during the process of producing green tea, white tea, and black tea, the content of ethylamine increased sharply, which directly led to their total contents of biogenic amines increasing by 184.4%, 169.3%, and 178.7% compared with that of the original leaves, respectively. Unexpectedly, the contents of methylamine, ethylamine, butylamine, and tyramine in dark tea were significantly reduced compared with those of the original leaves. Accordingly, the total content of biogenic amines in dark tea was only 161.19 μg/g, a reduction of 47.2% compared with that of the original leaves, indicating that the pile-fermentation process could significantly degrade the biogenic amines present in dark tea.
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Affiliation(s)
- Dandan Liu
- Institute of Resource Plants, Yunnan University, Kunming 650500, China; (D.L.); (K.W.); (X.X.)
| | - Kang Wang
- Institute of Resource Plants, Yunnan University, Kunming 650500, China; (D.L.); (K.W.); (X.X.)
| | - Xiaoran Xue
- Institute of Resource Plants, Yunnan University, Kunming 650500, China; (D.L.); (K.W.); (X.X.)
| | - Qiang Wen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, China;
| | - Shiwen Qin
- Institute of Resource Plants, Yunnan University, Kunming 650500, China; (D.L.); (K.W.); (X.X.)
- Correspondence: (S.Q.); (Y.S.); Tel./Fax: +86-871-65926940 (S.Q. & Y.S.)
| | - Yukai Suo
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, China;
- Correspondence: (S.Q.); (Y.S.); Tel./Fax: +86-871-65926940 (S.Q. & Y.S.)
| | - Mingzhi Liang
- Tea Research Institute, Yunnan Academy of Agricultural Sciences, Menghai 666201, China;
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Chen Y, Luo L, Hu S, Gan R, Zeng L. The chemistry, processing, and preclinical anti-hyperuricemia potential of tea: a comprehensive review. Crit Rev Food Sci Nutr 2022; 63:7065-7090. [PMID: 35236179 DOI: 10.1080/10408398.2022.2040417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hyperuricemia is an abnormal purine metabolic disease that occurs when there is an excess of uric acid in the blood, associated with cardiovascular diseases, hypertension, gout, and renal disease. Dietary intervention is one of the most promising strategies for preventing hyperuricemia and controlling uric acid concentrations. Tea (Camellia sinensis) is known as one of the most common beverages and the source of dietary polyphenols. However, the effect of tea on hyperuricemia is unclear. Recent evidence shows that a lower risk of hyperuricemia is associated with tea intake. To better understand the anti-hyperuricemia effect of tea, this review first briefly describes the pathogenesis of hyperuricemia and the processing techniques of different types of tea. Next, the epidemiological and experimental studies of tea and its bioactive compounds on hyperuricemia in recent years were reviewed. Particular attention was paid to the anti-hyperuricemia mechanisms targeting the hepatic uric acid synthase, renal uric acid transporters, and intestinal microbiota. Additionally, the desirable intake of tea for preventing hyperuricemia is provided. Understanding the anti-hyperuricemia effect and mechanisms of tea can better utilize it as a preventive dietary strategy.HighlightsHigh purine diet, excessive alcohol/fructose consumption, and less exercise/sleep are the induction factors of hyperuricemia.Tea and tea compounds showed alleviated effects for hyperuricemia, especially polyphenols.Tea (containing caffeine or not) is not associated with a higher risk of hyperuricemia.Xanthine oxidase inhibition (reduce uric acid production), Nrf2 activation, and urate transporters regulation (increase uric acid excretion) are the potential molecular targets of anti-hyperuricemic effect of tea.About 5 g tea intake per day may be beneficial for hyperuricemia prevention.
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Affiliation(s)
- Yu Chen
- College of Food Science, Southwest University, Chongqing, China
| | - Liyong Luo
- College of Food Science, Southwest University, Chongqing, China
- College of Food Science, Tea Research Institute, Southwest University, Chongqing, China
| | - Shanshan Hu
- College of Food Science, Southwest University, Chongqing, China
| | - Renyou Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, National Agricultural Science & Technology Center, Chengdu, China
| | - Liang Zeng
- College of Food Science, Southwest University, Chongqing, China
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Shi J, Yang G, You Q, Sun S, Chen R, Lin Z, Simal-Gandara J, Lv H. Updates on the chemistry, processing characteristics, and utilization of tea flavonoids in last two decades (2001-2021). Crit Rev Food Sci Nutr 2021:1-28. [PMID: 34898343 DOI: 10.1080/10408398.2021.2007353] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Tea flavonoids are widely recognized as critical flavor contributors and crucial health-promoting bioactive compounds, and have long been the focus of research worldwide in food science. The aim of this review paper is to summarize the major progress in tea flavonoid chemistry, their dynamics of constituents and concentrations during tea processing as well as storage, and their health functions studied between 2001 and 2021. Moreover, the utilization of tea flavonoids in the human body has also been discussed for a detailed understanding of their uptake, metabolism, and interaction with the gut microbiota. Many novel tea flavonoids have been identified, including novel A- and B-ring substituted flavan-3-ol derivatives, condensed and oxidized flavan-3-ol derivatives, and glycosylated and methylated flavonoids, and are found to be closely associated with the characteristic color, flavor, and health benefits of tea. Flavoalkaloids exist widely in various teas, particularly 8-C N-ethyl-2-pyrrolidinone-substituted flavan-3-ols. Tea flavonoids behave significantly difference in constituents and concentrations depending on tea cultivars, plantation conditions, multiple stresses, the tea-specified manufacturing steps, and even the long-term storage period. Tea flavonoids exhibit multiple health-promoting effects, particularly their anti-inflammatory in alleviating metabolic syndromes. Interaction of tea flavonoids with the gut microbiota plays vital roles in their health function.
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Affiliation(s)
- Jiang Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Gaozhong Yang
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qiushuang You
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shili Sun
- Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Ruohong Chen
- Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Jesus Simal-Gandara
- Department of Analytical Chemistry and Food Science, Faculty of Food Science, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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de Moura C, Kabbas Junior T, Pedreira FRDO, Azevedo L, Furtado MM, Sant'Ana AS, Franchin M, Gonzaga VR, Cui Y, Wen M, Zhang L, Pereira RP, Granato D. Purple tea (Camellia sinensis var. assamica) leaves as a potential functional ingredient: From extraction of phenolic compounds to cell-based antioxidant/biological activities. Food Chem Toxicol 2021; 159:112668. [PMID: 34774677 DOI: 10.1016/j.fct.2021.112668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 12/28/2022]
Abstract
A statistical optimization study was used to maximize the extraction of bioactive compounds and antioxidant activity from green tea derived from purple leaves of Camellia sinensis var. assamica. Simultaneous optimization was applied, and a combination of 60 °C, 15 min, and a mass-solvent ratio of 1 g of dehydrated purple leaves to 62.3 mL of an ethanol/citric acid solution, were determined as the ideal extraction conditions. The optimized extract of purple tea leaves (OEPL) contained showed stability in relation to variations in pH, and lyophilized OEPL exerted cytotoxic and antiproliferative effects against cancerous cells (A549 and HCT8), demonstrated antimicrobial activity towards Listeria monocytogenes (ATCC 7644), Staphylococcus aureus (ATCC 13565) and Staphylococcus epidermidis (ATCC 12288), inhibition of α-amylase and α-glycosidase enzymes and reduced the release of pro-inflammatory cytokines (TNF-α, CXCL2/MIP-2, and IL-6) in lipopolysaccharides-stimulated RAW 264.7 macrophages. Thus, our results provide a broad assessment of the bioactivity of "green" extracts obtained by a simple and low-cost process using non-toxic solvents, and they have the potential to be used for technological applications.
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Affiliation(s)
- Cristiane de Moura
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Tufy Kabbas Junior
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Fernanda Rafaelly de O Pedreira
- LANTIN - Nutritional and Toxicological Analysis in vivo Laboratory, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | - Luciana Azevedo
- LANTIN - Nutritional and Toxicological Analysis in vivo Laboratory, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | - Marianna M Furtado
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Marcelo Franchin
- Faculty of Dentistry, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, MG, Brazil
| | | | - Yuqing Cui
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Mingchun Wen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 230036, Hefei, China
| | - Romaiana P Pereira
- Department of Chemistry, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, PR, Brazil
| | - Daniel Granato
- Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, V94 T9PX Limerick, Ireland.
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19
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Zou C, Li RY, Chen JX, Wang F, Gao Y, Fu YQ, Xu YQ, Yin JF. Zijuan tea- based kombucha: Physicochemical, sensorial, and antioxidant profile. Food Chem 2021; 363:130322. [PMID: 34147900 DOI: 10.1016/j.foodchem.2021.130322] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/29/2021] [Accepted: 06/06/2021] [Indexed: 12/11/2022]
Abstract
Zijuan tea is a representative anthocyanin-rich tea cultivar in China. In this study, Zijuan tea was used to produce a novel kombucha beverage (ZTK). The physicochemical, sensory properties, and antioxidant activity of ZTK were compared with that of black tea kombucha (BTK) and green tea kombucha (GTK). Results indicated that after fermentation, the color of ZTK changed from yellowish-brown to salmon-pink, because its anthocyanins (4.5 mg/L) appeared red in acidic conditions. Meanwhile no significant changes of color were observed in BTK and GTK. The dynamic changes of pH, biomass, and concentrations of sugars, amino acids, and main organic acids were similar in three kombucha beverages, except catechins showing different trends. Moreover, ZTK showed the highest overall acceptability score, antioxidant activity, and concentration of volatiles among the three kombucha beverages. Therefore, Zijuan tea is suitable for the preparation of kombucha beverage with attractive color and health benefits.
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Affiliation(s)
- Chun Zou
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Ru-Yi Li
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Jian-Xin Chen
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Fang Wang
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Ying Gao
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Yan-Qing Fu
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China
| | - Yong-Quan Xu
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China.
| | - Jun-Feng Yin
- Tea Research Institute Chinese Academy of Agricultural Sciences, National Engineering Research Center for Tea Processing, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou 310008, China.
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20
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Shi J, Simal-Gandara J, Mei J, Ma W, Peng Q, Shi Y, Xu Q, Lin Z, Lv H. Insight into the pigmented anthocyanins and the major potential co-pigmented flavonoids in purple-coloured leaf teas. Food Chem 2021; 363:130278. [PMID: 34118756 DOI: 10.1016/j.foodchem.2021.130278] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 02/02/2023]
Abstract
Tea cultivars possessing purple shoots have attracted global interest. In order to gain a better understanding of the major chemical constituents responsible for the purple colouration, we applied widely targeted metabolomics to investigate the pigmented flavonoids of freeze-dried purple-coloured tea leaves (PTLs) in comparison with green-coloured tea leaves (GTLs). Thirty-three anthocyanins were identified, and delphinidin 3-O-galactoside and cyanidin 3-O-galactoside were found to be the most abundant in PTLs. A total of 226 metabolites including 193 flavonoids and 33 tannins were identified, and the methylated, acylated, and glycosylated flavonoids differed significantly between PTLs and GTLs. Moreover, significant differences (p < 0.01) in the average anthocyanin, flavonoid, chlorophyll and catechin contents were also observed. Four PTLs were found to contain high levels of (-)-epigallocatechin-3-(3″-O-methyl) gallate (>10 mg/g). These results suggest that structurally modified anthocyanins and major potential co-pigmented flavonoids are the chemicals primarily responsible for the purple colouration of the tea leaves.
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Affiliation(s)
- Jiang Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain
| | - Jufen Mei
- Wuxi Institute of Tea Varieties Co., Ltd., Wuxi 214125, China
| | - Wanjun Ma
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qunhua Peng
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Yali Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qi Xu
- Wuxi Institute of Tea Varieties Co., Ltd., Wuxi 214125, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
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21
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Teixeira AM, Sousa C. A Review on the Biological Activity of Camellia Species. Molecules 2021; 26:molecules26082178. [PMID: 33918918 PMCID: PMC8069326 DOI: 10.3390/molecules26082178] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/19/2021] [Accepted: 04/04/2021] [Indexed: 02/06/2023] Open
Abstract
Medicinal plants have been used since antiquity to cure illnesses and injuries. In the last few decades, natural compounds extracted from plants have garnered the attention of scientists and the Camellia species are no exception. Several species and cultivars are widespread in Asia, namely in China, Japan, Vietnam and India, being also identified in western countries like Portugal. Tea and oil are the most valuable and appreciated Camellia subproducts extracted from Camellia sinensis and Camellia oleifera, respectively. The economic impact of these species has boosted the search for additional information about the Camellia genus. Many studies can be found in the literature reporting the health benefits of several Camellia species, namely C. sinensis, C. oleifera and Camellia japonica. These species have been highlighted as possessing antimicrobial (antibacterial, antifungal, antiviral) and antitumoral activity and as being a huge source of polyphenols such as the catechins. Particularly, epicatechin (EC), epigallocatechin (EGC), epicatechin-3-gallate (ECG), and specially epigallocatechin-3-gallate (EGCG), the major polyphenols of green tea. This paper presents a detailed review of Camellia species’ antioxidant properties and biological activity.
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Affiliation(s)
- Ana Margarida Teixeira
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-290 Porto, Portugal;
| | - Clara Sousa
- CBQF—Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
- Correspondence:
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22
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Mei Y, Xie H, Liu S, Zhu J, Zhao S, Wei C. Metabolites and Transcriptional Profiling Analysis Reveal the Molecular Mechanisms of the Anthocyanin Metabolism in the "Zijuan" Tea Plant (Camellia sinensis var. assamica). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:414-427. [PMID: 33284608 DOI: 10.1021/acs.jafc.0c06439] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Anthocyanins are natural colorants that have attracted increasing attention because of their extensive range of antioxidant, antimutagenic, and health-promoting properties. The mechanism of anthocyanin synthesis has been studied in "Zijuan" tea, a representative anthocyanin-rich tea plant. However, the molecular basis underlying the transformation and degradation of anthocyanins is less-thoroughly understood. In this study, we compare "Zijuan" with a similar variety, "Yunkang 10", for transcriptome and metabolite analysis. In total, four glycosylated anthocyanins were identified in "Zijuan", including delphinidin-3-O-galactoside, cyanidin-3-O-galactoside, delphinidin 3-O-(6-O-p-coumaroyl) galactoside, and cyanidin 3-O-(6-O-p-coumaroyl) galactoside, and the glycosyl might determine the stable accumulation of anthocyanins. Several differentially expressed genes and transcription factors regulating the anthocyanin metabolism were identified, in which the significantly upregulated ANS, 3GT, 3AT, MYB, and WRKY were determined to be responsible for increasing and transforming anthocyanins. Moreover, by comparing the different positions of leaves in "Zijuan" and "Ziyan", we found that the pivotal genes regulating the biosynthesis of anthocyanins in "Zijuan" and "Ziyan" were different, and the degradation genes played different roles in the hydrolyzation of anthocyanins. These results provide further information on the molecular regulation of anthocyanin balance in tea plants.
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Affiliation(s)
- Yu Mei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
| | - Hui Xie
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
| | - Shengrui Liu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
| | - Junyan Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
| | - Shiqi Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
| | - Chaoling Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, Anhui 230036, China
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Zhu MZ, Zhou F, Ran LS, Li YL, Tan B, Wang KB, Huang JA, Liu ZH. Metabolic Profiling and Gene Expression Analyses of Purple-Leaf Formation in Tea Cultivars ( Camellia sinensis var. sinensis and var. assamica). FRONTIERS IN PLANT SCIENCE 2021; 12:606962. [PMID: 33746994 PMCID: PMC7973281 DOI: 10.3389/fpls.2021.606962] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 01/08/2021] [Indexed: 05/09/2023]
Abstract
Purple-leaf tea cultivars are known for their specific chemical composition that greatly influences tea bioactivity and plant resistance. Some studies have tried to reveal the purple-leaf formation mechanism of tea by comparing the purple new leaves and green older leaves in the same purple-leaf tea cultivar. It has been reported that almost all structural genes involved in anthocyanin/flavonoid biosynthesis were down-regulated in purple-leaf tea cultivars when the purple new leaves become green older leaves. However, anthocyanin/flavonoid biosynthesis is also affected by the growth period of tea leaves, gradually decreasing as new tea leaves become old tea leaves. This leads to uncertainty as to whether the purple-leaf formation is attributed to the high expression of structural genes in anthocyanin/flavonoid biosynthesis. To better understand the mechanisms underlying purple-leaf formation, we analyzed the biosynthesis of three pigments (chlorophylls, carotenoids, and anthocyanins/flavonoids) by integrated metabolic and gene expression analyses in four purple-leaf tea cultivars including Camellia sinensis var. sinensis and var. assamica. Green-leaf and yellow-leaf cultivars were employed for comparison. The purple-leaf phenotype was mainly attributed to high anthocyanins and low chlorophylls. The purple-leaf phenotype led to other flavonoid changes including lowered monomeric catechin derivatives and elevated polymerized catechin derivatives. Gene expression analysis revealed that 4-coumarate: CoA ligase (4CL), anthocyanidin synthase (ANS), and UDP-glucose: flavonoid 3-O-glucosyltransferase (UFGT) genes in the anthocyanin biosynthetic pathway and the uroporphyrinogen decarboxylase (HEME) gene in the chlorophyll biosynthetic pathway were responsible for high anthocyanin and low chlorophyll, respectively. These findings provide insights into the mechanism of purple-leaf formation in tea cultivars.
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Affiliation(s)
- Ming-zhi Zhu
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Research Center for Development and Utilization of Medicinal Plants in Eastern Hubei Province, Hubei University of Education, Wuhan, China
| | - Fang Zhou
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
| | - Li-sha Ran
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Yi-long Li
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Bin Tan
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Kun-bo Wang
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- *Correspondence: Kun-bo Wang,
| | - Jian-an Huang
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Jian-an Huang,
| | - Zhong-hua Liu
- Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Zhong-hua Liu,
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Characterizing relationships among chemicals, sensory attributes and in vitro bioactivities of black tea made from an anthocyanins-enriched tea cultivar. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109814] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Zhang Q, Hu J, Liu M, Shi Y, De Vos RCH, Ruan J. Stimulated biosynthesis of delphinidin-related anthocyanins in tea shoots reducing the quality of green tea in summer. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:1505-1514. [PMID: 31756273 DOI: 10.1002/jsfa.10158] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 10/24/2019] [Accepted: 11/17/2019] [Indexed: 05/18/2023]
Abstract
BACKGROUND Greater proportions of purple tea buds and leaves usually appear in the summer, which seriously affects the color and taste quality of green tea products, yet the metabolism of purple tea shoots in summer remains unclear. Here, the metabolomic profiles and gene expression of related flavonoid metabolic pathways in the purple and normal green shoots of 'Longjing 43', and the quality of green tea made with these two phenotypes, were analyzed and compared. RESULTS Differential metabolites identified using high-performance liquid chromatography-Orbitrap/mass spectrometry indicated that anthocyanin biosynthesis in purple leaves was enriched, with higher levels of anthocyanidins (delphinidin-hexose-coumaroyl showed the greatest increase), proanthocyanidins (oligomers of catechins) and kaempferol glycoside. Expression patterns of the genes ANR, ANS, FLS, LAR, C4H, PAL, CHI, CHS and DFR revealed that the metabolism of anthocyanin is positively regulated by high temperature and/or light levels in summer. Gas chromatography-mass spectrometry results showed that, in purple tea shoots, the metabolism of carbohydrates was enriched whereas that of amino acids was diminished, while their mannose, fructose, d-galactose, sorbose and d-glucose contents were more than double those found in green leaves. A sensory evaluation confirmed that a greater quantity of purple shoots had a greater negative impact on green tea quality because of a bitter taste and dark color (leaves and infusions were tested). CONCLUSIONS These results highlight the need for and possibility of improving commercial tea quality via cultivation that controls the temperature or light of tea gardens during the summer. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qunfeng Zhang
- Key Laboratory for Plant Biology and Resource Application of Tea, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Jianhui Hu
- College of Horticulture, Qingdao Agricultural University/Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Qingdao, China
| | - Meiya Liu
- Key Laboratory for Plant Biology and Resource Application of Tea, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Yuanzhi Shi
- Key Laboratory for Plant Biology and Resource Application of Tea, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | | | - Jianyun Ruan
- Key Laboratory for Plant Biology and Resource Application of Tea, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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Shen J, Zhang D, Zhou L, Zhang X, Liao J, Duan Y, Wen B, Ma Y, Wang Y, Fang W, Zhu X. Transcriptomic and metabolomic profiling of Camellia sinensis L. cv. 'Suchazao' exposed to temperature stresses reveals modification in protein synthesis and photosynthetic and anthocyanin biosynthetic pathways. TREE PHYSIOLOGY 2019; 39:1583-1599. [PMID: 31135909 DOI: 10.1093/treephys/tpz059] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/28/2019] [Accepted: 05/16/2019] [Indexed: 05/19/2023]
Abstract
To determine the mechanisms in tea plants responding to temperature stresses (heat and cold), we examined the global transcriptomic and metabolomic profiles of the tea plant cultivar 'Suchazao' under moderately low temperature stress (ML), severely low temperature stress (SL), moderately high temperature stress (MH) and severely high temperature stress (SH) using RNA-seq and high performance liquid chromatography tandem mass spectrometry/mass spectrometry (HPLC-MS/MS), respectively. The identified differentially expressed genes indicated that the synthesis of stress-resistance protein might be redirected to cope with the temperature stresses. We found that heat shock protein genes Hsp90 and Hsp70 played more critical roles in tea plants in adapting to thermal stress than cold, while late embryogenesis abundant protein genes (LEA) played a greater role under cold than heat stress, more types of zinc finger genes were induced under cold stress as well. In addition, energy metabolisms were inhibited by SH, SL and ML. Furthermore, the mechanisms of anthocyanin synthesis were different under the cold and heat stresses. Indeed, the CsUGT75C1 gene, encoding UDP-glucose:anthocyanin 5-O-glucosyl transferase, was up-regulated in the SL-treated leaves but down-regulated in SH. Metabolomics analysis also showed that anthocyanin monomer levels increased under SL. These results indicate that the tea plants share certain foundational mechanisms to adjust to both cold and heat stresses. They also developed some specific mechanisms for surviving the cold or heat stresses. Our study provides effective information about the different mechanisms tea plants employ in surviving cold and heat stresses, as well as the different mechanisms of anthocyanin synthesis, which could speed up the genetic breeding of heat- and cold-tolerant tea varieties.
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Affiliation(s)
- Jiazhi Shen
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Dayan Zhang
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Lin Zhou
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, P. R. China
| | | | - Jieren Liao
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Yu Duan
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Bo Wen
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Yuanchun Ma
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Yuhua Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
| | - Xujun Zhu
- College of Horticulture, Nanjing Agricultural University, Nanjing, P. R. China
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Grape Infusions: The Flavor of Grapes and Health-Promoting Compounds in Your Tea Cup. BEVERAGES 2019. [DOI: 10.3390/beverages5030048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Traditionally, tea, a beverage made from the processed leaves of the tea plant, Camellia sinensis, and herbal infusions have been primarily consumed for their pleasant taste. Nowadays, they are also consumed because they contain nutraceutical compounds, such as polyphenols. Grapes and grape/wine sub-products such as non-fermented/semi-fermented or fermented grapes, skins, and seeds are a rich source of health-promoting compounds, presenting a great potential for the development of new beverages. Therefore, these grape/wine sub-products are used in the beverage sector for the preparation of infusions, tisanes, and decoctions. Besides polyphenols, fermented grapes, skins, and seeds, usually discarded as waste, are enriched with other health-promoting/nutraceutical compounds, such as melatonin, glutathione, and trehalose, among others, which are produced by yeasts during alcoholic fermentation. In this review, we summarize the benefits of drinking herbal infusions and discuss the potential application of some grapevine fermentation waste products in the production of healthy beverages that we can call grape infusions.
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Gao X, Ho CT, Li X, Lin X, Zhang Y, Chen Z, Li B. Phytochemicals, Anti-Inflammatory, Antiproliferative, and Methylglyoxal Trapping Properties of Zijuan Tea. J Food Sci 2018; 83:517-524. [PMID: 29337349 DOI: 10.1111/1750-3841.14029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/01/2017] [Accepted: 12/07/2017] [Indexed: 01/03/2023]
Abstract
Zijuan tea (Camellia sinensis var. assamica) is a unique anthocyanin-rich tea cultivar in China. Although chemical component analysis of Zijuan tea and extraction technology of anthocyanins was widely documented, its functional properties have not been extensively explored. In this study, the anti-inflammatory, antiproliferative, and methylglyoxal (MGO) trapping activities of water extract (ZWE) and ethyl acetate extract (ZEE) of Zijuan tea were investigated for the 1st time. Results showed that ZWE and ZEE exhibited inhibitory effects on nitric oxide (NO), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 production as well as inducible nitric oxide synthase protein (iNOS) expression in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Moreover, Zijuan tea extracts exerted stronger antiproliferative activity against HCT-116 cells compared with HepG2 and MDA-MB-231 cells, and thus could induce apoptosis in HCT-116 cells in a dose-dependent manner. Furthermore, Zijuan tea extracts were effective in trapping MGO under simulated physiological conditions, and the T1/2 (the time for 50% MGO remaining) values of ZWE and ZEE were 3.69 and 6.20 min, respectively. Additionally, the contents of total phenolics and catechins in ZEE were 685.43 ± 16.00 and 454.96 ± 4.21 mg/g extract, respectively, and in ZWE were 422.59 ± 12.09 and 307.29 ± 0.85 mg/g extract, respectively. Therefore, ZEE exhibited better anti-inflammatory, antiproliferative, and MGO trapping properties than ZWE may be mainly attributed to its higher (P < 0.05) content of total phenolics, expecially catechins. These results suggest that Zijuan tea could be a potential natural resource for the development of functional tea beverage. PRACTICAL APPLICATION This study revealed that Zijuan tea extracts possessed anti-inflammatory, antiproliferative, and methylglyoxal trapping potentials in vitro. With high anthocyanins and polyphenols, Zijuan tea can be developed into a healthy tea beverage or used as a natural component to reduce the level of methylglyoxal in Maillard reaction.
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Affiliation(s)
- Xiong Gao
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China.,Dept. of Food Science, Rutgers Univ., 65 Dudley Road, New Brunswick, NJ, 08901, U.S.A
| | - Chi-Tang Ho
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China.,Dept. of Food Science, Rutgers Univ., 65 Dudley Road, New Brunswick, NJ, 08901, U.S.A
| | - Xiaofei Li
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China
| | - Xiaorong Lin
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China
| | - Yuanyuan Zhang
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China
| | - Zhongzheng Chen
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China
| | - Bin Li
- College of Food Science, South China Agricultural Univ., 483 Wushan Street, Tianhe District, Guangzhou, 510642, China
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Polyphenol Content, Physicochemical Properties, Enzymatic Activity, Anthocyanin Profiles, and Antioxidant Capacity ofCerasus humilis(Bge.) Sok. Genotypes. J FOOD QUALITY 2018. [DOI: 10.1155/2018/5479565] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Seven varieties of Chinese dwarf cherries were evaluated and compared with respect to their weight, diameter, titratable acidity, total soluble solids, color, polyphenol contents, ascorbic acid levels, anthocyanin profiles, enzymatic activity, and antioxidant capacity. The fruits are rich in phenolic content (339.07–770.30 mg/100 g fresh weight). Nine anthocyanins were obtained from fruits after chromatographic separation and their structures analyzed using HPLC-ESI-MS/MS. Cyanidin-3-glucoside was the major anthocyanin with 50.36–78.39% concentration. Three anthocyanins were reported for the first time in these cherries. They exhibit low polyphenol oxidase and peroxidase activities, but their superoxide dismutase activity is high (572.75–800.17 U/g FW). The highest amounts of soluble solid content (15.67 Brix %), total titratable acid (1.90%), ascorbic acid (18.47 mg/100 g FW), and total anthocyanin (152.66 mg/100 g FW) were observed. Three methods (DPPH-scavenging ability, oxygen radical absorbance capacity assay, and cellular antioxidant activity assay) were employed to evaluate the antioxidant capacity of the phenolic extracts of these cherries. Number 5 has the highest values of ORAC and CAA of 205.68 μmol TE/g DM and 99.67 μmol QE/100 g FW, respectively.
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Shen J, Zou Z, Zhang X, Zhou L, Wang Y, Fang W, Zhu X. Metabolic analyses reveal different mechanisms of leaf color change in two purple-leaf tea plant ( Camellia sinensis L.) cultivars. HORTICULTURE RESEARCH 2018; 5:7. [PMID: 29423237 PMCID: PMC5802758 DOI: 10.1038/s41438-017-0010-1] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/18/2017] [Accepted: 11/24/2017] [Indexed: 05/05/2023]
Abstract
Purple-leaf tea plants, as anthocyanin-rich cultivars, are valuable materials for manufacturing teas with unique colors or flavors. In this study, a new purple-leaf cultivar "Zixin" ("ZX") was examined, and its biochemical variation and mechanism of leaf color change were elucidated. The metabolomes of leaves of "ZX" at completely purple, intermediately purple, and completely green stages were analyzed using ultra-performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-QTOF-MS). Metabolites in the flavonoid biosynthetic pathway remained at high levels in purple leaves, whereas intermediates of porphyrin and chlorophyll metabolism and carotenoid biosynthesis exhibited high levels in green leaves. In addition, fatty acid metabolism was more active in purple leaves, and steroids maintained higher levels in green leaves. Saponin, alcohol, organic acid, and terpenoid-related metabolites also changed significantly during the leaf color change process. Furthermore, the substance changes between "ZX" and "Zijuan" (a thoroughly studied purple-leaf cultivar) were also compared. The leaf color change in "Zijuan" was mainly caused by a decrease in flavonoids/anthocyanins. However, a decrease in flavonoids/anthocyanins, an enhancement of porphyrin, chlorophyll metabolism, carotenoid biosynthesis, and steroids, and a decrease in fatty acids synergistically caused the leaf color change in "ZX". These findings will facilitate comprehensive research on the regulatory mechanisms of leaf color change in purple-leaf tea cultivars.
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Affiliation(s)
- Jiazhi Shen
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Zhongwei Zou
- Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2 Canada
| | - Xuzhou Zhang
- Bureau of Rural Economic Development of Huangdao District, Qingdao, Shangdong 266400 China
| | - Lin Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yuhua Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Xujun Zhu
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
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Regulation of Anthocyanin Biosynthesis in Purple Leaves of Zijuan Tea (Camellia sinensis var. kitamura). Int J Mol Sci 2017; 18:ijms18040833. [PMID: 28422049 PMCID: PMC5412417 DOI: 10.3390/ijms18040833] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/05/2017] [Accepted: 04/10/2017] [Indexed: 11/25/2022] Open
Abstract
Plant anthocyanin biosynthesis is well understood, but the regulatory mechanism in purple foliage tea remains unclear. Using isobaric tag for relative and absolute quantification (iTRAQ), 815 differential proteins were identified in the leaves of Zijuan tea, among which 20 were associated with the regulation of anthocyanin metabolism. We found that the abundances of anthocyanin synthesis-related enzymes such as chalcone synthase, chalcone isomerase, dihydroflavonol 4-reductase and anthocyanin synthetase, as well as anthocyanin accumulation-related UDP-glucosyl transferase and ATP-binding cassette (ABC) transporters in the purple leaves were all significantly higher than those in the green leaves. The abundances of the transcription factors bHLH and HY5, regulating anthocyanin biosynthesis at transcriptional level were also obviously higher in purple leaves than those in green leaves. In addition, bifunctional 3-dehydroquinate dehydratase and chorismate mutase in purple leaves were distinctly higher in abundance compared to green leaves, which provided sufficient phenylalanine substrate for anthocyanin synthesis. Furthermore, lignin synthesis was found to be reduced due to the lower abundances of cinnamoyl-CoA reductase 1, peroxidase 15 and laccase-6, which resulted in increase of intermediates flow into anthocyanin synthesis pathway. The physiological data were consistent with proteomic results. These four aspects of biosynthetic regulation contribute to anthocyanin accumulation in purple leaves of Zijuan tea.
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Tang J, Yan Y, Ran L, Mi J, Sun Y, Lu L, Gao Y, Zeng X, Cao Y. Isolation, antioxidant property and protective effect on PC12 cell of the main anthocyanin in fruit of Lycium ruthenicum Murray. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Furtado AA, Torres-Rêgo M, Lima MCJS, Bitencourt MAO, Estrela AB, Souza da Silva N, da Silva Siqueira EM, Tomaz JC, Lopes NP, Silva-Júnior AA, Zucolotto SM, Fernandes-Pedrosa MF. Aqueous extract from Ipomoea asarifolia (Convolvulaceae) leaves and its phenolic compounds have anti-inflammatory activity in murine models of edema, peritonitis and air-pouch inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:225-235. [PMID: 27448455 DOI: 10.1016/j.jep.2016.07.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/15/2016] [Accepted: 07/15/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ipomoea asarifolia (Desr.) Roem. and Schult.(Convolvulaceae), popularly known as salsa or salsa-brava, is a plant of which the decoction of leaves is used in folk medicine to treat various inflammatory disorders such of dermatitis, scabies, symptoms of syphilis, skin ulcers and external wounds. However, little is known about possible compounds and mechanisms of action of the plant to support the activities reported by popular use. AIM OF THE STUDY The study aimed to identify bioactive molecules present in the crude extract of I. asarifolia leaves and investigate the anti-inflammatory potential of this extract in different experimental in vivo models to improve the understanding on that activity. MATERIAL AND METHODS Aqueous extract of I. asarifolia leaves was prepared by decoction (1:10 m/v) and its chromatographic profile was obtained by high performance liquid chromatography coupled with diode array detector (HPLC-DAD) and liquid chromatography diode array detector coupled with mass spectrometry (LC-DAD-MS). The potential anti-inflammatory activity of the extract was assessed using the following in vivo models: xylene-induced ear edema (20, 30 and 40mg/kg), evaluating the degree of edema formation; carrageenan-induced peritonitis (10, 20 and 30mg/kg), evaluating leukocyte migration and cytokine levels (IL-1β, IL-6, IL-12 and TNF-α) at 4h; zymosan-induced air pouch inflammation (20, 30 and 40mg/kg), evaluating the kinetics of leukocyte migration by total and differential counts at 6, 24 and 48h. The same tests were conducted using pure compounds identified in the aqueous extract from I. asarifolia leaves in different doses for each experimental model. RESULTS The compounds identified in the aqueous extract of I. asarifolia leaves by HPLC-DAD and LC-DAD-MS were rutin, chlorogenic acid and caffeic acid. The extract significantly reduced ear edema induced by xylene (81%, 85% and 86% for doses of 20, 30 and 40mg/kg, respectively, p<0.001), as well as cell migration in experimental models of peritonitis (70%, 78% and 83% for doses of 10, 20 and 30mg/kg, respectively, p<0.001) and air pouch inflammation (58%, 67% and 53% for doses of 20, 30 and 40mg/kg, respectively, p<0.001). In addition, the extract demonstrated the ability to significantly inhibit the production of cytokines IL-1β, IL-6, IL-12 and TNF-α (p<0.001). The secondary metabolites tested (rutin, chlorogenic acid and caffeic acid) also showed the ability to significantly (p<0.001) decrease the parameters analyzed above. CONCLUSION This is the first study to identify and confirm these phenolic compounds in I. asarifolia leaves extract and to suggest that these compounds contribute to the anti-inflammatory activity in vivo, as reported by ethnomedicinal use of this plant. Through the different experimental models performed, we can conclude that the results obtained with the aqueous extract from I. asarifolia leaves support its popular use for the treatment of inflammatory disorders.
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Affiliation(s)
- Allanny A Furtado
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Manoela Torres-Rêgo
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Maíra C J S Lima
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Mariana A O Bitencourt
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Andréia Bergamo Estrela
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Nayara Souza da Silva
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | | | - José Carlos Tomaz
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Norberto Peporine Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Arnóbio Antônio Silva-Júnior
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Silvana M Zucolotto
- Laboratório de Farmacognosia, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil
| | - Matheus F Fernandes-Pedrosa
- Laboratório de Tecnologia e Biotecnologia Farmacêutica, Departamento de Farmácia, Faculdade de Farmácia do Rio Grande do Norte-UFRN, Natal, RN, Brazil.
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Dai W, Tan J, Lu M, Xie D, Li P, Lv H, Zhu Y, Guo L, Zhang Y, Peng Q, Lin Z. Nontargeted Modification-Specific Metabolomics Investigation of Glycosylated Secondary Metabolites in Tea (Camellia sinensis L.) Based on Liquid Chromatography-High-Resolution Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6783-6790. [PMID: 27541009 DOI: 10.1021/acs.jafc.6b02411] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Glycosylation on small molecular metabolites modulates a series of biological events in plants. However, a large number of glycosides have not been discovered and investigated using -omics approaches. Here, a general strategy named "nontargeted modification-specific metabolomics" was applied to map the glycosylation of metabolites. The key aspect of this method is to adopt in-source collision-induced dissociation to dissociate the glycosylated metabolite, causing a characteristic neutral loss pattern, which acts as an indicator for the glycosylation identification. In an exemplary application in green teas, 120 glucosylated/galactosylated, 38 rhamnosylated, 21 rutinosylated, and 23 primeverosylated metabolites were detected simultaneously. Among them, 61 glycosylated metabolites were putatively identified according to current tea metabolite databases. Thanks to the annotations of glycosyl moieties in advance, the method aids metabolite identifications. An additional 40 novel glycosylated metabolites were tentatively elucidated. This work provides a feasible strategy to discover and identify novel glycosylated metabolites in plants.
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Affiliation(s)
- Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Junfeng Tan
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Meiling Lu
- Agilent Technologies (China) Limited , No. 3 Wangjing North Road, Chaoyang District, Beijing 100102, People's Republic of China
| | - Dongchao Xie
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Pengliang Li
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Yin Zhu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Li Guo
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Yue Zhang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Qunhua Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences , 9 Meiling South Road, Hangzhou, Zhejiang 310008, People's Republic of China
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Trikas ED, Melidou M, Papi RM, Zachariadis GA, Kyriakidis DA. Extraction, separation and identification of anthocyanins from red wine by-product and their biological activities. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.06.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Wang C, Lv S, Wu Y, Gao X, Li J, Zhang W, Meng Q. Oolong tea made from tea plants from different locations in Yunnan and Fujian, China showed similar aroma but different taste characteristics. SPRINGERPLUS 2016; 5:576. [PMID: 27247873 PMCID: PMC4864747 DOI: 10.1186/s40064-016-2229-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 04/25/2016] [Indexed: 11/10/2022]
Abstract
Consistent aroma characteristics are important for tea products. However, understanding the formation of tea aroma flavor and correspondingly proposing applicable protocols to control tea quality and consistency remain major challenges. Oolong tea is one of the most popular teas with a distinct flavor. Generally, oolong tea is processed with the leaves of tea trees belonging to different subspecies and grown in significantly different regions. In this study, Yunnan and Fujian oolong teas, green tea, black tea, and Pu-erh tea were collected from major tea estates across China. Their sensory evaluation, main water-soluble and volatile compounds were identified and measured. The sensory evaluation, total polysaccharide, caffeine, and catechin content of Yunnan oolong tea was found to be different from that of Fujian oolong tea, a result suggesting that the kinds of tea leaves used in Yunnan and Fujian oolong teas were naturally different. However, according to their aroma compounds, principal component analysis (PCA) and cluster analysis (CA) of the volatile compounds showed that the two types of oolong teas were similar and cannot be clearly distinguished from each other; they are also different from green, black, and Pu-erh teas, a result indicating that the same oolong tea processing technology applied to different tea leaves results in consistent aroma characteristics. The PCA analysis results also indicated that benzylalcohol, indole, safranal, linalool oxides, β-ionone, and hexadecanoic acid methyl ester highly contributed to the distinct aroma of oolong tea compared with the other three types of teas. This study proved that the use of the same processing technology on two kinds of tea leaves resulted in a highly consistent tea aroma.
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Affiliation(s)
- Chen Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
| | - Shidong Lv
- Kunming Grain & Oil and Feed Product Quality Inspection Center, Kunming, 650118 Yunnan People's Republic of China
| | - Yuanshuang Wu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
| | - Xuemei Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
| | - Jiangbing Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
| | - Wenrui Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
| | - Qingxiong Meng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500 Yunnan People's Republic of China
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Comparison of polyphenol, anthocyanin and antioxidant capacity in four varieties of Lonicera caerulea berry extracts. Food Chem 2016; 197:522-9. [DOI: 10.1016/j.foodchem.2015.11.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/29/2015] [Accepted: 11/02/2015] [Indexed: 11/21/2022]
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