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Zhu H, Zhou X, Shen C, Ao Z, Cao X, Song C, Mehmood MA, Wu T, Mei J, He M, Ma Y, Wang N. Bacillus licheniformis-based intensive fermentation of Tibetan tea improved its bioactive compounds and reinforced the intestinal barrier in mice. Front Microbiol 2024; 15:1376757. [PMID: 38933031 PMCID: PMC11199413 DOI: 10.3389/fmicb.2024.1376757] [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: 01/26/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Tibetan tea changes during microorganism fermentation. Research on microorganisms in Tibetan tea has focused on their identification, while studies on the influence of specific microorganisms on the components and health functions of Tibetan tea are lacking. Bacillus licheniformis was inoculated into Tibetan tea for intensive fermentation, and the components of B. licheniformis-fermented tea (BLT) were detected by liquid chromatography with tandem mass spectrometry (UHPLC-TOF-MS), and then the effects of BLT on intestinal probiotic functions were investigated by experiments on mice. The results revealed the metabolites of BLT include polyphenols, alkaloids, terpenoids, amino acids, and lipids. Intensified fermentation also improved the antioxidant capacity in vivo and the protective effect on the intestinal barrier of Tibetan tea. In addition, the enhanced fermentation of Tibetan tea exerted intestinal probiotic effects by modulating the relative abundance of short-chain fatty acid-producing bacteria in the intestinal flora. Therefore, intensive fermentation with B. licheniformis can improve the health benefits of Tibetan tea.
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Affiliation(s)
- Hui Zhu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin, China
| | - Xiaoli Zhou
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin, China
| | | | | | | | | | - Muhammad Aamer Mehmood
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin, China
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Tao Wu
- School of Food and Biological Engineering, Xihua University, Chengdu, China
| | - Jie Mei
- Sichuan Jixiang Tea Co., Ltd., Ya'an, China
| | - Manli He
- Laboratory Animal Center, Southwest Medical University, Luzhou, China
| | - Yi Ma
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin, China
| | - Ning Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin, China
- Luzhou Laojiao Co. Ltd., Luzhou, China
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Zhou Q, Gao J, Sun X, Liang Y, Ye M, Liang D, Ling C, Fang B. In Vitro Characterization of Polysaccharides from Fresh Tea Leaves in Simulated Gastrointestinal Digestion and Gut Microbiome Fermentation. Foods 2024; 13:1561. [PMID: 38790861 PMCID: PMC11121227 DOI: 10.3390/foods13101561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Tea plants have a long cultivation history in the world, but there are few studies on polysaccharides from fresh tea leaves. In this study, tea polysaccharides (TPSs) were isolated from fresh tea leaves. Then, we investigated the characteristics of TPSs during in vitro simulated digestion and fermentation; moreover, the effects of TPSs on gut microbiota were explored. The results revealed that saliva did not significantly affect TPSs' molecular weight, monosaccharide composition, and reducing sugar content, indicating that TPSs cannot be digested in the oral cavity. However, TPSs were partially decomposed in the gastrointestinal tract after gastric and intestinal digestion, resulting in the release of a small amount of free glucose monosaccharides. Our in vitro fermentation experiments demonstrated that TPSs are degraded by gut microbiota, leading to short-chain fatty acid (SCFA) production and pH reduction. Moreover, TPSs increased the abundance of Bacteroides, Lactobacillus, and Bifidobacterium but reduced that of Escherichia, Shigella, and Enterococcus, demonstrating that TPSs can regulate the gut microbiome. In conclusion, TPSs are partially decomposed by gut microbiota, resulting in the production of SCFAs and the regulation of gut microbiota composition and function. Therefore, TPSs may be used to develop a prebiotic supplement to regulate the gut microbiome and improve host health.
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Affiliation(s)
- Qiaoyi Zhou
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
| | - Jinjing Gao
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
| | - Xueyan Sun
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
| | - Yicheng Liang
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
| | - Minqi Ye
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
| | - Dongxia Liang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou 510640, China;
| | - Caijin Ling
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou 510640, China;
| | - Binghu Fang
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China; (Q.Z.); (J.G.); (X.S.); (Y.L.); (M.Y.)
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Wei K, Wei Y, Zhou P, Zhu J, Peng L, Cheng L, Wang Y, Wei X. Preparation, Characterization, and Antioxidant Properties of Selenium-Enriched Tea Peptides. Foods 2023; 12:4105. [PMID: 38002163 PMCID: PMC10670339 DOI: 10.3390/foods12224105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The research on the activity of selenium (Se)-enriched agricultural products is receiving increasing attention since Se was recognized for its antioxidant activities and for its enhancement of immunity in trace elements. In this study, antioxidant Se-containing peptides, namely, Se-TAPepI-1 and Se-TAPepI-2, were optimally separated and prepared from Se-enriched tea protein hydrolysates by ultrafiltration and Sephadex G-25 purification, and subsequently, their physicochemical properties, oligopeptide sequence, and potential antioxidant mechanism were analyzed. Through the optimization of enzymatic hydrolysis conditions, the Se-enriched tea protein hydrolyzed by papain exhibited a better free radical scavenging activity. After separation and purification of hydrolysates, the two peptide fractions obtained showed significant differences in selenium content, amino acid composition, apparent morphology, peptide sequence, and free radical scavenging activity. Therein, two peptides from Se-TAPepI-1 included LPMFG (563.27 Da) and YPQSFIR (909.47 Da), and three peptides from Se-TAPepI-2 included GVNVPYK (775.42 Da), KGGPGG (552.24 Da), and GDEPPIVK (853.45 Da). Se-TAPepI-1 and Se-TAPepI-2 could ameliorate the cell peroxidation damage and inflammation by regulating NRF2/ARE pathway expression. Comparably, Se-TAPepI-1 showed a better regulatory effect than Se-TAPepI-2 due to their higher Se content, typical amino acid composition and sequence, higher surface roughness, and a looser arrangement in their apparent morphology. These results expanded the functional activities of tea peptide and provided the theoretical basis for the development of Se-containing peptides from Se-enriched tea as a potential natural source of antioxidant dietary supplements.
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Affiliation(s)
- Kang Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
| | - Yang Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
| | - Peng Zhou
- College of Life Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China;
| | - Jiangxiong Zhu
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
| | - Lanlan Peng
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
| | - Lizeng Cheng
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
| | - Yuanfeng Wang
- College of Life Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China;
| | - Xinlin Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (K.W.); (Y.W.); (J.Z.); (L.P.); (L.C.)
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Wei K, Wei Y, Wang Y, Wei X. Amelioration Effects and Regulatory Mechanisms of Different Tea Active Ingredients on DSS-Induced Colitis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16604-16617. [PMID: 37876151 DOI: 10.1021/acs.jafc.3c04524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The potential biological function of tea and its active components on colitis has attracted wide attention. In this study, different tea active ingredients including tea polyphenols (TPPs), tea polysaccharides (TPSs), theabrownin (TB), and theanine (TA) have been compared in the intervention of dextran sulfate sodium (DSS)-induced colitis in mice. Specifically, TPP showed the greatest effect on colitis since it reduced 60.87% of disease activity index (DAI) compared to that of the DSS-induced colitis group, followed by the reduction of 39.13% of TPS and 28.26% of TB on DAI, whereas there was no obvious alleviative effect of TA on colitis. TPP, TPS, and TB could regulate the composition and abundance of gut microbiota to increase the content of short-chain fatty acids (SCFAs) and enhance intestinal barrier function. Further evidence was observed that TPP and TPS regulated the activation of Nrf2/ARE and the TLR4/MyD88/NF-κB P65 pathway to alleviate the colitis. Results of cell experiments demonstrated that TPP showed the greatest antiapoptosis and mitochondrial function protective capability among the tea ingredients via inhibiting the Cytc/Cleaved-caspase-3 signaling pathway. In summary, the superior anticolitis activity of TPP compared to TPS and TB is primarily attributed to its unique upregulation of the abundance of Akkermansia and its ability to regulate the mitochondrial function.
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Affiliation(s)
- Kang Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Yang Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Yuanfeng Wang
- College of Life Sciences, Shanghai Normal University, No. 100 Guilin Road, Xuhui District, Shanghai 200234, P. R. China
| | - Xinlin Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
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He G, Chen T, Huang L, Zhang Y, Feng Y, Liu Q, Yin X, Qu S, Yang C, Wan J, Liang L, Yan J, Liu W. Tibetan tea reduces obesity brought on by a high-fat diet and modulates gut flora in mice. Food Sci Nutr 2023; 11:6582-6595. [PMID: 37823111 PMCID: PMC10563754 DOI: 10.1002/fsn3.3607] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 10/13/2023] Open
Abstract
It has been shown that Tibetan tea (TT) inhibits obesity and controls lipid metabolism. The fundamental processes by which TT prevents obesity are yet entirely unknown. Consequently, this research aimed to ascertain if TT may prevent obesity by modifying the gut flora. Our research demonstrated that TT prevented mice from gaining weight and accumulating fat due to the high-fat diet (HFD), decreased levels of blood total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (LDL-C), and raised levels of high-density lipoprotein cholesterol (HDL-C). Adipogenesis-related genes such as acetyl-Coenzyme A carboxylase 1 (ACC1, LOC107476), fatty acid synthase (Fas, LOC14104), sterol regulatory element-binding protein-1c (SREBP-1c, LOC20787), CCAAT/enhancer-binding protein α (C/EBPα, LOC12606), stearoyl-CoA desaturase 1 (SCD1, LOC20249), and peroxisome proliferator-activated receptor γ (PPARγ, LOC19016) had their expression downregulated by lowering the Firmicutes/Bacteroidetes (F/B) ratio and controlling the number of certain gut bacteria. TT also alleviated HFD-induced abnormalities of the gut microbiota. The Muribaculaceae, Lachnospiraceae NK4A136_group, Alistipes, and Odoribacter families were identified as the major beneficial gut microorganisms using Spearman's correlation analysis. Fecal microbiota transplantation (FMT) demonstrated that TT's anti-obesity and gut microbiota-modulating benefits might be transmitted to mice on an HFD, demonstrating that one of TT's targets for preventing obesity is the gut microbiota. TT also increased the amount of short-chain fatty acids (SCFAs) in the feces, including acetic, propionic, and butyric acids. These results indicate the possible development of TT as a prebiotic to combat obesity and associated disorders. These results suggest that TT may act as a prebiotic against obesity and its associated diseases.
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Affiliation(s)
- Gang He
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Tangcong Chen
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Lifen Huang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Yiyuan Zhang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Yanjiao Feng
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Qijun Liu
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Xiaojing Yin
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Shaokui Qu
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Chen Yang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Jianghong Wan
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
- Sichuan Jiang's Tibetan Tea Co., LTDYa'anChina
| | - Li Liang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Jun Yan
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
| | - Wei Liu
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education DepartmentSichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu UniversityChengduChina
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Deng H, Liu J, Xiao Y, Wu JL, Jiao R. Possible Mechanisms of Dark Tea in Cancer Prevention and Management: A Comprehensive Review. Nutrients 2023; 15:3903. [PMID: 37764687 PMCID: PMC10534731 DOI: 10.3390/nu15183903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Tea is one of the most popular drinks in the world. Dark tea is a kind of post-fermented tea with unique sensory characteristics that is produced by the special fermentation of microorganisms. It contains many bioactive substances, such as tea polyphenols, theabrownin, tea polysaccharides, etc., which have been reported to be beneficial to human health. This paper reviewed the latest research on dark tea's potential in preventing and managing cancer, and the mechanisms mainly involved anti-oxidation, anti-inflammation, inhibiting cancer cell proliferation, inducing cancer cell apoptosis, inhibiting tumor metastasis, and regulating intestinal flora. The purpose of this review is to accumulate evidence on the anti-cancer effects of dark tea, the corresponding mechanisms and limitations of dark tea for cancer prevention and management, the future prospects, and demanding questions about dark tea's possible contributions as an anti-cancer adjuvant.
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Affiliation(s)
- Huilin Deng
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
| | - Jia Liu
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
| | - Ying Xiao
- Faculty of Medicine, Macau University of Science and Technology, Macau, China;
| | - Jian-Lin Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China;
| | - Rui Jiao
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
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Wang N, Li L, Zhang P, Mehmood MA, Lan C, Gan T, Li Z, Zhang Z, Xu K, Mo S, Xia G, Wu T, Zhu H. In-silico annotation of the chemical composition of Tibetan tea and its mechanism on antioxidant and lipid-lowering in mice. Nutr Res Pract 2023; 17:682-697. [PMID: 37529260 PMCID: PMC10375330 DOI: 10.4162/nrp.2023.17.4.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND/OBJECTIVES Tibetan tea is a kind of dark tea, due to the inherent complexity of natural products, the chemical composition and beneficial effects of Tibetan tea are not fully understood. The objective of this study was to unravel the composition of Tibetan tea using knowledge-guided multilayer network (KGMN) techniques and explore its potential antioxidant and hypolipidemic mechanisms in mice. MATERIALS/METHODS The C57BL/6J mice were continuously gavaged with Tibetan tea extract (T group), green tea extract (G group) and ddH2O (H group) for 15 days. The activity of total antioxidant capacity (T-AOC) and superoxide dismutase (SOD) in mice was detected. Transcriptome sequencing technology was used to investigate the molecular mechanisms underlying the antioxidant and lipid-lowering effects of Tibetan tea in mice. Furthermore, the expression levels of liver antioxidant and lipid metabolism related genes in various groups were detected by the real-time quantitative polymerase chain reaction (qPCR) method. RESULTS The results showed that a total of 42 flavonoids are provisionally annotated in Tibetan tea using KGMN strategies. Tibetan tea significantly reduced body weight gain and increased T-AOC and SOD activities in mice compared with the H group. Based on the results of transcriptome and qPCR, it was confirmed that Tibetan tea could play a key role in antioxidant and lipid lowering by regulating oxidative stress and lipid metabolism related pathways such as insulin resistance, P53 signaling pathway, insulin signaling pathway, fatty acid elongation and fatty acid metabolism. CONCLUSIONS This study was the first to use computational tools to deeply explore the composition of Tibetan tea and revealed its potential antioxidant and hypolipidemic mechanisms, and it provides new insights into the composition and bioactivity of Tibetan tea.
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Affiliation(s)
- Ning Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Luzhou LaoJiao Group Co. Ltd., Luzhou 646000, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
| | - Linman Li
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Puyu Zhang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Muhammad Aamer Mehmood
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Chaohua Lan
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Tian Gan
- Ya’an Youyi Tea Co., Ltd, Ya’an 625000, China
| | - Zaixin Li
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Zhi Zhang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Kewei Xu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Shan Mo
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Gang Xia
- Comprehensive Agricultural Service Center of Dachuan, Lushan, Ya’an 625000, China
| | - Tao Wu
- School of Food and Biological Engineering, Xihua University, Chengdu 610039, China
| | - Hui Zhu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China
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Wang N, Lan C, Lu H, Li L, Liao D, Xu K, Sun H, Tang Y, Wang Y, Mei J, Wei M, Wu T, Zhu H. Preventive effect and mechanism of Tibetan tea extract on thrombosis in arachidonic acid-induced zebrafish determined via RNA-seq transcriptome profiles. PLoS One 2023; 18:e0285216. [PMID: 37205684 DOI: 10.1371/journal.pone.0285216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/17/2023] [Indexed: 05/21/2023] Open
Abstract
Thrombosis is a key pathological event in cardiovascular diseases and is also the most important targeting process for their clinical management. In this study, arachidonic acid (AA) was used to induce thrombus formation in zebrafish larvae. Blood flow, red blood cell (RBCs) aggregation and cellular oxidative stress were measured to evaluate the antithrombotic effect of Tibetan tea (TT). Meanwhile, the potential molecular mechanism was further explored by transcriptome sequencing (RNA-seq). The results indicated that TT could significantly restore heart RBCs intensity of thrombotic zebrafish, whilst decreasing RBCs accumulation in the caudal vein. The transcriptome analysis revealed that the preventive effect of TT on thrombosis could be mostly attributed to changes in lipid metabolism related signaling pathways, such as fatty acid metabolism, glycerollipid metabolism, ECM-receptor interaction and steroid biosynthesis signaling pathway. This study demonstrated that Tibetan tea could alleviate thrombosis by reducing oxidative stress levels and regulating lipid metabolism.
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Affiliation(s)
- Ning Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Luzhou Laojiao Co. Ltd, Luzhou, PR China
- College of Horticulture, Hunan Agricultural University, Changsha, China
- Chengdu Chongqing Shuangcheng Economic Circle (Luzhou) Advanced Technology Research Institute, Luzhou, China
| | - Chaohua Lan
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Huiqiang Lu
- Center for Drug Screening and Research, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, China
| | - Linman Li
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Dalong Liao
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Kewei Xu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Haiyan Sun
- Chengdu Chongqing Shuangcheng Economic Circle (Luzhou) Advanced Technology Research Institute, Luzhou, China
| | - Yongqing Tang
- Chengdu Chongqing Shuangcheng Economic Circle (Luzhou) Advanced Technology Research Institute, Luzhou, China
| | - Yumeng Wang
- Bristol Myers Squibb, Princeton, NJ, United States of America
| | - Jie Mei
- Sichuan Jixiang Tea Co., Ltd., Ya'an, China
| | - Mengting Wei
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Tao Wu
- School of Food and Biological Engineering, Xihua University, Chengdu, China
| | - Hui Zhu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
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Tan Y, Li M, Kong K, Xie Y, Zeng Z, Fang Z, Li C, Hu B, Hu X, Wang C, Chen S, Wu W, Lan X, Liu Y. In vitro simulated digestion of and microbial characteristics in colonic fermentation of polysaccharides from four varieties of Tibetan tea. Food Res Int 2023; 163:112255. [PMID: 36596166 DOI: 10.1016/j.foodres.2022.112255] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/21/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022]
Abstract
Polysaccharides as a functional prebiotic have numerous activities such as regulating intestinal microorganisms and polysaccharide is one of the functional active components in tea has been known. In this study, we aimed to investigate the physicochemical characteristics of polysaccharides from four kinds of Tibetan teas at simulated digestion stages and the effect on the microbiota of fecal fermentation stages in vitro. The results revealed that Tibetan tea polysaccharides were partially digested during digestion. Additionally, during in vitro fecal microbial fermentation, Tibetan tea polysaccharides can promote the growth of some beneficial bacteria such as Bifidobacterium, Prevotella and Phascolarctobacterium to change the composition of intestinal microorganisms and promote the production of short-chain fatty acids (SCFAs). Finally, a strong correlation was found between the production of SCFAs and microorganisms including Bacteroides, Bifidobacterium and Lachnoclostridium. These results suggest that Tibetan tea polysaccharides could be developed as a prebiotic to regulate human gut microbiota.
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Affiliation(s)
- Yaowen Tan
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Meiwen Li
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Keyang Kong
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yushan Xie
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Zhen Zeng
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
| | - Zhengfeng Fang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Cheng Li
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Bin Hu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Xinjie Hu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Caixia Wang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Saiyan Chen
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Wenjuan Wu
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Xiguo Lan
- Sichuan Yingtai Tea Industry Co., Ltd., Yaan 625200, China
| | - Yuntao Liu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
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10
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Baishya T, Das P, Ashraf GJ, Dua TK, Paul P, Nandi G, Bhattacharya M, Sahu R. Tissue specific changes of phytochemicals, antioxidant, antidiabetic and anti-inflammatory activities of tea [ Camellia sinensis (L.)] extracted with different solvents. Z NATURFORSCH C 2022; 78:235-246. [PMID: 36565064 DOI: 10.1515/znc-2022-0174] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/06/2022] [Indexed: 12/25/2022]
Abstract
Different parts of Camellia sinensis (L.) were extracted with solvents according to polarity, and the extracts' phytochemical profiling and biological activities were examined. The total phenolic (TPC) and total flavonoid (TFC) contents increased with the increasing polarity of the solvent which met its maximum in polar solvents. The increasing antioxidant, anti-inflammatory and antidiabetic activities were recorded with increasing polarity of solvents which showed hydroalcoholic as best solvent. The strong and significant correlation was among the TPC, TFC, DPPH, anti-inflammatory and antidiabetic activities for different parts of tea. HPTLC study of individual phenolic acids, epigallocatechin gallate, gallocatechin and theaflavin met their maximum level of content with polar solvents like hydroalcohol, methanol and water mostly in mainly tea leaves. Our finding suggested that the polar solvents and young leaves of tea were beneficial for obtaining extracts. On the other hand, phenolics were found to be potent antioxidant, anti-inflammatory and antidiabetic agent.
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Affiliation(s)
- Tania Baishya
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India.,Department of Tea Science, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Priya Das
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Gouhar Jahan Ashraf
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Tarun Kumar Dua
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Paramita Paul
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Gouranga Nandi
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Malay Bhattacharya
- Department of Tea Science, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Ranabir Sahu
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India
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11
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Lin X, Lu XK, Zhu KH, Jiang XY, Chen JC, Yan PZ, Zhao DS. Synchronous Extraction, Antioxidant Activity Evaluation, and Composition Analysis of Carbohydrates and Polyphenols Present in Artichoke Bud. Molecules 2022; 27:molecules27248962. [PMID: 36558095 PMCID: PMC9783601 DOI: 10.3390/molecules27248962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
This study investigated the optimization of ultrasonic-assisted aqueous two-phase synchronous extraction of carbohydrates and polyphenols present in artichoke bud, evaluated their antioxidant activities in vitro, and analyzed the composition of carbohydrates and polyphenols by high-performance liquid chromatography (HPLC). The powder mass, ultrasonic time, ammonium sulfate concentration, and alcohol-water ratio were considered the influencing factors based on the single-factor experiment results, and a dual-response surface model was designed to optimize the synchronous extraction process to extract carbohydrates and polyphenols. The antioxidant activity was evaluated by measuring the scavenging capacity of ABTS+· and DPPH· and the reducing capacity of Fe3+. The optimal process conditions in this study were as follows: the powder mass of 1.4 g, ammonium sulfate concentration of 0.34 g/mL, alcohol-water ratio of 0.4, and ultrasonic time of 43 min. The polyphenol content in artichoke bud was 5.32 ± 0.13 mg/g, and the polysaccharide content was 74.78 ± 0.11 mg/g. An experiment on in vitro antioxidant activity showed that both carbohydrates and polyphenols had strong antioxidant activities, and the antioxidant activity of polyphenols was stronger than that of carbohydrates. The HPLC analysis revealed that the carbohydrates in artichoke bud were mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, and arabinose, and the molar ratio was 10.77:25.22:2.37:15.74:125.39:48.62:34.70. The polyphenols comprised chlorogenic acid, 4-dicaffeoylquinic acid, caffeic acid, 1,3-dicaffeoylqunic acid, isochlorogenic acid B, isochlorogenic acid A, cynarin, and isochlorogenic acid C, and the contents were 0.503, 0.029, 0.022, 0.017, 0.008, 0.162, 1.621, 0.030 mg/g, respectively. This study also showed that the carbohydrates and polyphenols in artichoke bud could be important natural antioxidants, and the composition analysis of HPLC provided directions for their future research. Carbohydrates and polyphenols in artichoke buds can be separated and enriched using the optimized process technology, and it is an effective means of extracting ingredients from plants.
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Affiliation(s)
- Xiao Lin
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xian-Kun Lu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Kai-Hao Zhu
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xin-Yang Jiang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jiong-Chao Chen
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Pei-Zheng Yan
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Dong-Sheng Zhao
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Correspondence: ; Tel./Fax: +86-531-8962-8200
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12
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Green extraction, chemical composition, and in vitro antioxidant activity of theabrownins from Kangzhuan dark tea. Curr Res Food Sci 2022; 5:1944-1954. [PMID: 36300163 PMCID: PMC9589173 DOI: 10.1016/j.crfs.2022.10.019] [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: 07/14/2022] [Revised: 08/29/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Theabrownins (TBs) in dark tea have received increasing attention for their multiple health benefits. In this study, ultrasound assisted extraction with deep eutectic solvent (UAE-DES) was developed for the extraction of TBs from Kangzhuan dark tea (KZDT). The highest yield (12.59%) of TBs was obtained using UAE-choline (ChCl)/malic acid (MA) with a liquid to solid ratio of 20:1 (v/w), ultrasonic power of 577 W, ultrasonic time of 25 min, and water content of 30%. TBs were further eluded by silica gel to obtain six theabrownine fractions (TBFs), namely, TBFs1, TBFs2, TBFs3, TBFs4, TBFs5, and TBFs6. LC-MS/MS revealed that flavonoids, terpenes, phenolic acids, alkaloids, lipids, and amino acids are the leading components of TBFs. The TBFs4, with the DPPH, ABTS, and FRAP values of 45.08 ± 0.42 μM Ascorbic acid/g DW, 178.52 ± 0.29 μM Trolox/g DW, and 370.85 ± 6.00 μM Fe(II)/g DW, respectively, showed the highest antioxidant activity among all the TBFs. Overall, this study first provided the evidence that UAE-ChCl/MA combining with silica gel was effective to extract TBs from KZDT, and the 6,7-dihydroxycoumarin-6-glucoside and neohesperidin were found as the leading compounds in the TBFs, providing a guidance for the chemical research and further utilization of dark tea and its TBs. Yield of TBs of 12.59% from KZDT was achieved by UAE-ChCl/MA. Silica gel powder with methanol (100%–0%) as a mobile phase was used for TBs separation. The chemical component of TBFs was revealed. Flavonoids are among the leading compounds in the TBFs. TBFs4 displayed the highest in vitro antioxidant activity.
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13
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Yuan Y, Zhang B, He J, Wei T, Liu D, Yang W, Guo C, Nie X. Combinations of Tibetan tea and medicine food homology herbs: A new strategy for obesity prevention. Food Sci Nutr 2022; 11:504-515. [PMID: 36655078 PMCID: PMC9834885 DOI: 10.1002/fsn3.3081] [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: 04/27/2022] [Revised: 07/19/2022] [Accepted: 09/16/2022] [Indexed: 01/21/2023] Open
Abstract
Obesity has become a significant global public health problem. Functional drinks have been an essential direction for obesity prevention research. The present study investigated the preventive effect and safety of winter melon and lotus leaf Tibetan tea (WLTT, a compound tea drink based on Ya'an Tibetan Tea and medicine food homology herbs) on obesity. The rats' hypercaloric high-fat diet (HFD) obesity model was established to evaluate obesity prevention and explored the mechanism through intestinal flora regulation. The results showed that in obese rats with the intervention of WLTT (400, 800, and 1600 mg/kg BW), the body weight, fat accumulation, adipocyte cell size, serum lipid levels, and antioxidant enzyme activity (SOD, GSH-Px, and MDA) were progressively improved. 16S rRNA high-throughput sequencing showed that WLTT could improve intestinal flora disorders due to HFD, which significantly reversed the relative abundance of Firmicutes and the F/B ratio associated with an HFD, and significantly upregulated the relative abundance of Verrucomicrobia. At the genus level, the downregulation of the relative abundance of Akkermansia and unclassified_Lachnospiraceae groups, and the upregulation of the relative abundance of Romboutsia, Ruminococcus, Corynebacteriume, and Saccharibacteria_genera_incertae_sedis groups brought about by the HFD were significantly reversed. The results of the above experiments were compared favorably with those of a parallel experiment with Bi -Sheng -Yuan slimming tea (BSY, a functional drink based on green tea and medicine food homology herbs). Overall, the findings have provided that WLTT can prevent obesity owing to an HFD by regulating intestinal flora and has a good safety profile, and combinations of Tibetan tea and medicine food homology herbs could be a new option for obesity prevention.
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Affiliation(s)
- Ye Yuan
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina,College of PharmacyZunyi Medical UniversityZunyiChina
| | - Bin Zhang
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - Jing‐liu He
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - Ting Wei
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - De‐jun Liu
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - Wen‐jun Yang
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - Cheng‐Yi Guo
- Department of Pharmacy & Medical LaboratoryYa'an Polytechnic CollegeYa'anChina
| | - Xu‐qiang Nie
- College of PharmacyZunyi Medical UniversityZunyiChina,Key Laboratory of the Basic Pharmacology of the Ministry of EducationZunyi Medical UniversityZunyiChina,Joint International Research Laboratory of Ethnomedicine of Chinese Ministry of EducationZunyi Medical UniversityZunyiChina
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14
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Zhu C, Yang Z, He L, Lu X, Tang J, Laghi L. The Longer the Storage Time, the Higher the Price, the Better the Quality? A 1H-NMR Based Metabolomic Investigation of Aged Ya’an Tibetan Tea (Camellia sinensis). Foods 2022; 11:foods11192986. [PMID: 36230062 PMCID: PMC9563412 DOI: 10.3390/foods11192986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/25/2022] Open
Abstract
As an essential beverage beneficial for Tibetan people, Ya’an Tibetan tea has received scarce attention, particularly from the point of view of the characterization of its metabolome. The aim of the study is to systematically characterize the metabolome of Tibetan tea by means of untargeted 1H-NMR. Moreover, the variations of its metabolome along ageing time are evaluated by taking advantage of univariate and multivariate analyses. A total of 45 molecules are unambiguously identified and quantified, comprising amino acids, peptides and analogues, carbohydrates and derivates, organic acids and derivates, nucleosides, nucleotides and catechins. The concentrations of amino acids, organic acids, carbohydrates and catechins are mainly determined by ageing time. The present study would serve as a reference guide for further work on the Ya’an Tibetan tea metabolome, therefore contributing to the related industries.
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Affiliation(s)
- Chenglin Zhu
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
| | - Zhibo Yang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
| | - Li He
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Xuan Lu
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
| | - Junni Tang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
- Correspondence: (J.T.); (L.L.); Tel.: +86-028-85928478 (J.T.); +39-0547-338106 (L.L.)
| | - Luca Laghi
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy
- Correspondence: (J.T.); (L.L.); Tel.: +86-028-85928478 (J.T.); +39-0547-338106 (L.L.)
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15
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Distinguishing Different Varieties of Oolong Tea by Fluorescence Hyperspectral Technology Combined with Chemometrics. Foods 2022; 11:foods11152344. [PMID: 35954110 PMCID: PMC9368096 DOI: 10.3390/foods11152344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 12/04/2022] Open
Abstract
Oolong tea is a semi-fermented tea that is popular among people. This study aims to establish a classification method for oolong tea based on fluorescence hyperspectral technology(FHSI) combined with chemometrics. First, the spectral data of Tieguanyin, Benshan, Maoxie and Huangjingui were obtained. Then, standard normal variation (SNV) and multiple scatter correction (MSC) were used for preprocessing. Principal component analysis (PCA) was used for data visualization, and with tolerance ellipses that were drawn according to Hotelling, outliers in the spectra were removed. Variable importance for the projection (VIP) > 1 in partial least squares discriminant analysis (PLS−DA) was used for feature selection. Finally, the processed spectral data was entered into the support vector machine (SVM) and PLS−DA. MSC_VIP_PLS−DA was the best model for the classification of oolong tea. The results showed that the use of FHSI could accurately distinguish these four types of oolong tea and was able to identify the key wavelengths affecting the tea classification, which were 650.11, 660.29, 665.39, 675.6, 701.17, 706.31, 742.34 and 747.5 nm. In these wavelengths, different kinds of tea have significant differences (p < 0.05). This study could provide a non-destructive and rapid method for future tea identification.
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16
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Targeted and untargeted metabolomic analyses and biological activity of Tibetan tea. Food Chem 2022; 384:132517. [PMID: 35228002 DOI: 10.1016/j.foodchem.2022.132517] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/22/2022] [Accepted: 02/17/2022] [Indexed: 11/22/2022]
Abstract
Tibetan tea is not only a national product of geographical identity, but also a traditional beverage inherits Chinese tradition. This study evaluated the metabolic profiles and biological activity in four Tibetan teas. 83 non-volatile metabolites were identified as differentially expressed metabolites, including amino acids and their derivatives, phenolic acids, flavonoids, nucleotides and their derivatives, terpenes, alkaloids, organic acids, lipids and others. CC and 131 were rich in terpenoids and lipids. MZ contained the highest contents of amino acids and their derivatives, phenolic acids and flavonoids. 26 key volatile compounds were considered as odor-active compounds. MZ showed the highest level of antioxidant and hypoglycemic activity. Statistics analysis indicated that polyphenols, flavonoids and catechins were significantly correlated (|r| ≥ 0.7, P < 0.05) with biological activities. This study indicated significant differences in the metabolic profiles of various types of Tibetan tea, which provided a clear database for quality detection of Tibetan tea.
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17
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Yao J, Liu H, Ma C, Pu L, Yang W, Lei Z. A Review on the Extraction, Bioactivity, and Application of Tea Polysaccharides. Molecules 2022; 27:molecules27154679. [PMID: 35897856 PMCID: PMC9329993 DOI: 10.3390/molecules27154679] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 01/27/2023] Open
Abstract
Tea is a non-alcoholic drink containing various active ingredients, including tea polysaccharides (TPSs). TPSs have various biological activities, such as antioxidant, anti-tumor, hypoglycemic, and anti-cancer activities. However, TPSs have a complex composition, which significantly limits the extraction and isolation methods, thus limiting their application. This paper provides insight into the composition, methodological techniques for isolation and extraction of the components, biological activities, and functions of TPSs, as well as their application prospects.
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Affiliation(s)
| | | | | | | | | | - Zhiwei Lei
- Correspondence: ; Tel.: +86-851-83761972
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18
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Zheng Q, Gao P, Liu T, Gao X, Li W, Zhao G. Effects of drying methods on colour, amino acids, phenolic profile, microstructure and volatile aroma components of
Boletus aereus
slices. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Qiaoran Zheng
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing 408100 People’s Republic of China
- College of Food Science Southwest University Chongqing 400715 People’s Republic of China
| | - Pingping Gao
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing 408100 People’s Republic of China
| | - Tingting Liu
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing 408100 People’s Republic of China
| | - Xiaoxv Gao
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing 408100 People’s Republic of China
| | - Wenfeng Li
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing 408100 People’s Republic of China
| | - Guohua Zhao
- College of Food Science Southwest University Chongqing 400715 People’s Republic of China
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19
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Yang W, Liu M, Chen B, Ning J, Wang K, Cai Y, Yang D, Zheng G. Comparative analysis of chemical constituents in Citri Exocarpium Rubrum, Citri Reticulatae Endocarpium Alba, and Citri Fructus Retinervus. Food Sci Nutr 2022; 10:3009-3023. [PMID: 36171768 PMCID: PMC9469855 DOI: 10.1002/fsn3.2897] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/12/2022] [Accepted: 04/10/2022] [Indexed: 11/10/2022] Open
Abstract
Citri Exocarpium Rubrum (CER), Citri Reticulatae Endocarpium Alba (CREA), and Citri Fructus Retinervus (CFR) are used as medicine and food, which derive from three different parts of the pericarp of Citrus reticulata Blanco through natural drying. To systematically investigate similarities and differences in phytochemicals about the three herbs, a series of analytic approaches were applied for the qualitative and quantitative analysis of chemical constituents in them. The results indicated a total of 48 volatile compounds were determined representing 99.92% of the total relative content of CER extracts, including 24 alkenes, 11 alcohols, 6 aldehydes, 2 ketones, and 2 phenols, while volatile compounds were not extracted from CREA and CFR. CER was abundant in volatile components that mainly existed in the oil gland. And a total of 32, 35, and 28 nonvolatile compounds were identified from CER, CREA, and CFR extracts, respectively. The total content of flavonoids and phenolic, and hesperidin in CFR was the highest, followed by CREA and CER. Conversely, CER was a rich source of polymethoxyflavones (PMFs), and the total polymethoxyflavone content (TPMFC), the content of nobiletin, 3,5,6,7,8,3′,4′‐heptamethoxyflavone (HMF), tangeretin, and 5‐hydroxy‐6,7,8,3′,4′‐pentamethoxyflavone (5‐HPMF) in CREA and CFR were extremely low. Besides, CER and CREA had a higher concentration of synephrine than CFR. The phytochemicals of CER, CREA, and CFR were significantly different, which might provide chemical evidence for the comparative pharmacological activities’ research and rational application of them.
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Affiliation(s)
- Wanling Yang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
| | - Mengshi Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
| | - Baizhong Chen
- Guangdong Xinbaotang Biological Technology Co., Ltd Jiangmen China
| | - Jinrong Ning
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
| | - Kanghui Wang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
| | - Yi Cai
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
| | - Depo Yang
- School of Pharmaceutical Sciences Sun Yat‐sen University Guangzhou China
| | - Guodong Zheng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou China
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20
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Wang N, Wu T, Du D, Mei J, Luo H, Liu Z, Saleemi MK, Zhang R, Chang C, Mehmood MA, Zhu H. Transcriptome and Gut Microbiota Profiling Revealed the Protective Effect of Tibetan Tea on Ulcerative Colitis in Mice. Front Microbiol 2022; 12:748594. [PMID: 35237238 PMCID: PMC8882814 DOI: 10.3389/fmicb.2021.748594] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/15/2021] [Indexed: 01/14/2023] Open
Abstract
Traditionally, Ya’an Tibetan tea is routinely consumed by local people in the Tibet region. It is believed to possess promising anti-inflammatory benefits. This study was conducted to elucidate the protective impact of Tibetan tea extract (TTE) on dextran sodium sulfate (DSS)-induced colitis in mice. Mice were split into four groups: control (C) group, Tibetan tea (T) group, DSS-induced model (CD) group, and Tibetan tea + DSS (TD) group. The intake of TTE significantly reduced the clinical symptoms of ulcerative colitis (UC) by alleviating the impact of cellular damage and reducing glandular hypertrophy and the infiltration of inflammatory cells. UC led to a prominent shift of the microbial communities in the gut. Interestingly, the beneficial microbes, such as Lactobacillus reuteri, Bifidobacterium choerinum, and Lactobacillus intestinalis, were significantly increased in TTE-treated mice when compared to any other experimental group. The transcriptome analysis revealed that the positive effect of TTE on UC could be attributed to changes in the G alpha (i) signaling pathway and the innate immune system. The genes related to inflammation and immune system pathways were differentially expressed in the TTE-treated group. Moreover, the relative expression of genes linked to the inflammatory TLR4/MyD88/NF-κB signaling pathway was significantly downregulated toward the level of normal control samples in the TD group. Overall, this study revealed the modulatory effect by which TTE reversed the development and severity of chronic colon damage.
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Affiliation(s)
- Ning Wang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Tao Wu
- School of Food and Biological Engineering, Xihua University, Chengdu, China
| | - Di Du
- Process Technology Department, ExxonMobil Research and Engineering, Annandale, NJ, United States
| | - Jie Mei
- Sichuan Jixiang Tea Co., Ltd., Ya’an, China
| | - Huibo Luo
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | - Zishan Liu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
| | | | - Runhui Zhang
- Department of Veterinary Medicine, College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Candace Chang
- UCLA Microbiome Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Muhammad Aamer Mehmood
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
- *Correspondence: Muhammad Aamer Mehmood,
| | - Hui Zhu
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong, China
- Hui Zhu,
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21
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Zheng Q, Li W, Gao X. The effect of storage time on tea Polyphenols, catechin compounds, total flavones and the biological activity of Ya’an Tibetan tea (
Camellia sinensis
). J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Qiaoran Zheng
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing China
| | - Wenfeng Li
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing China
| | - Xiaoxv Gao
- School of Advanced Agriculture and Bioengineering Yangtze Normal University Chongqing China
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22
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LIU Y, LI SM. Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides. FOOD SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1590/fst.11320] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Wang Q, Yang F, Jia D, Wu T. Polysaccharides and polyphenol in dried Morinda citrifolia fruit tea after different processing conditions: Optimization analysis using response surface methodology. PeerJ 2021; 9:e11507. [PMID: 34123597 PMCID: PMC8164410 DOI: 10.7717/peerj.11507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/03/2021] [Indexed: 01/02/2023] Open
Abstract
The increasing popularity of Morinda citrifolia has many medical and health benefits because of its rich polysaccharides (PSC) and polyphenols (PPN). It has become popular to brew the dry M. citrifolia fruit slice as tea in some regions of China. In this study, optimize the extraction parameters of M. citrifolia fruit tea polysaccharides and polyphenols using response surface methodology. The results indicated the highest PSC yield of 17% at 46 °C for 11 min and the ratio of water/M. citrifolia fruit powder was 78 mL/g. The optimum extraction of PPN was at 95 °C for 10 min and the ratio of water/M. citrifolia fruit powder 90 mL/g, with 8.93% yield. Using dry M. citrifolia fruit slices as a tea is reported for the first time. Based on the results, the maximum level of PSC can be obtained under condition by infusing about four dried M. citrifolia fruit slice with average thickness and size in warm boiled water for 11 min, taking a 300 mL cup (300 mL of water) for example. The maximum level of PPN can be obtained by adding three slices of dried M. citrifolia fruit slice to boiled water for 10 min. Considering the powder used in our study, the further pulverization of cutting into powder is more conducive to material precipitation. This study provides a scientific basis for obtaining PSC and PPN from dry M. citrifolia fruit slice tea by brewing.
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Affiliation(s)
- Qingfen Wang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Landscape Architecture Engineering Research Center of National Forestry and Grassland Administration, Kunming, Yunnan, China
| | - Fei Yang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Landscape Architecture Engineering Research Center of National Forestry and Grassland Administration, Kunming, Yunnan, China
| | - Dandan Jia
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Landscape Architecture Engineering Research Center of National Forestry and Grassland Administration, Kunming, Yunnan, China
| | - Tian Wu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Landscape Architecture Engineering Research Center of National Forestry and Grassland Administration, Kunming, Yunnan, China
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24
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Phytochemical Profile and Antioxidant Properties of Italian Green Tea, a New High Quality Niche Product. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7050091] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The hot beverage commonly known as tea results from the infusion of dried leaves of the plant Camellia sinensis (L.) O. Kuntze. Ranking second only to water for its consumption worldwide, it has always been appreciated since antiquity for its aroma, taste characteristics, and beneficial effects on human health. There are many different processed tea types, including green tea, a non-fermented tea which, due to oxidation prevention maintains the structure of the bioactive compounds, especially polyphenols; these bioactive compounds show a number of benefits for the human health. The main producers of tea are China and India, followed by Kenya, Sri Lanka, Turkey, and Vietnam, however recently new countries are entering the market, with quality niche productions, among which also Italy. The present research aimed to assess the bioactive compounds (polyphenols) and the antioxidant activity of two green teas (the “Camellia d’Oro” tea—TCO, and the “Compagnia del Lago” tea—TCL) produced in Italy, in the Lake Maggiore district, where nurserymen have recently started to cultivate C. sinensis. In this area the cultivation of acidophilic plants as ornamentals has been known since around 1820. Due to the crisis of the floricultural sector, producers have been trying to diversify their product in order to increase their competitiveness, starting to cultivate Italian tea. Their antioxidant activity was assessed, finding a similar or higher antioxidant capacity than in other green teas, as reported in literature. TCO showed a higher antioxidant activity (42,758.86 mmol Fe2+ kg−1; 532.37 µmol TE g−1 DW; 881.08 µmol TE g−1 DW) and phenolic content (14,918.91 mg GAE 100 g−1 DW) than TCL (25,796.61 mmol Fe2+ kg−1; 302.35 µmol TE g−1 DW; 623.44 µmol TE g−1 DW; 8540.42 mg GAE 100 g−1 DW). Through HPLC, a total of thirteen phenolic compounds were identified quantitatively, including catechins, benzoic acids, cinnamic acids, and flavonols, in TCO while only 9 in TCL, and mainly in lower amounts. Albeit with differences, both teas were found to be of quality proving that Italy could have the possibility to grow profitably C. sinensis.
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Zheng Q, Li X, Liu T, Zhang Y, Liu J, Zhang H, Li W, Gao X. Effects of air-impingement jet drying on drying kinetics, color, polyphenol compounds, and antioxidant activities of Boletus aereus slices. J Food Sci 2021; 86:2131-2144. [PMID: 33864249 DOI: 10.1111/1750-3841.15702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/16/2021] [Accepted: 02/27/2021] [Indexed: 11/28/2022]
Abstract
The aim of the study is to interpret the effects of air-impingement jet drying (AIJD) on drying kinetics, color, polyphenols, and antioxidation ability of Boletus aereus slices. Page model was most suitable for expressing and predicting AIJD curves of B. aereus slices. The moisture-effective diffusion coefficient of AIJD ranged from 7.8876 × 10-10 to 2.1426 × 10-9 m2 /s, and AIJD also showed high efficiency due to its low activation energy (45.37 kJ/mol). AIJD is better for B. aereus slices than hot air drying (HAD) in accelerating the drying rate (DR) and shortening drying time, and maintaining color. p-hydroxybenzoic acid, protocatechuic acid, and rutin were identified in B. aereus slices by ultra high-performance liquid chromatography coupled with triple quadrupole mass spectrometry (UHPLC-QqQ-MS). Total polyphenols, flavanone, phenolic acids, and antioxidant activities were significantly lower in dried B. aereus slices than those in fresh B. aereus slices. In AIJD, drying temperature had the greatest effect on the quality of B. aereus slices, and AIJD at 50 °C is the optimum drying condition for B. aereus slices. PRACTICAL APPLICATION: Boletus aereus occurs in many countries all over the world. In this paper, the effect of AIJD on color, polyphenols, and antioxidation ability in B. aereus slices and its drying kinetics were studied. AIJD is an efficient drying method for B. aereus by decreasing its drying time, increasing DR, and protecting the color of B. aereus. These findings have provided important reference basis for people to have a better understanding of AIJD method, which was used to dry B. aereus. This study also provides a new technique for drying B. aereus, which could improve dry efficiency and reduce drying cost.
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Affiliation(s)
- Qiaoran Zheng
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
| | - Xiexin Li
- College of Food Science and Technology, Sichuan Tourism University, SiChuan, China
| | - Tingting Liu
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
| | - Yan Zhang
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
| | - Jingyi Liu
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
| | - Heng Zhang
- Drug Control Institutions, Ya'an Polytechnic College, SiChuan, China
| | - Wenfeng Li
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
| | - Xiaoxv Gao
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China
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Ye J, Zhao Y, Chen X, Zhou H, Yang Y, Zhang X, Huang Y, Zhang N, Lui EMK, Xiao M. Pu-erh tea ameliorates obesity and modulates gut microbiota in high fat diet fed mice. Food Res Int 2021; 144:110360. [PMID: 34053553 DOI: 10.1016/j.foodres.2021.110360] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 01/03/2023]
Abstract
Obesity is regarded to be associated with fat accumulation, chronic inflammation, and gut microbiota dysbiosis. Raw and ripened pu-erh tea extract (PETe) have the effect of reducing body weight gain and fat accumulation, which are associated with gut microbiota. However, little is known about the difference of raw and ripened PETe on the regulation of gut microbiota. Here, our results suggested that supplementation of raw and ripened PETe displayed similar anti-obesogenic effect in high fat diet (HFD)-induced obesity mice, by attenuating the body weight gain, fat accumulation, oxidative injury, and low-grade inflammation, improving the glucose tolerance, alleviating the metabolic endotoxemia, and regulating the mRNA and protein expression levels of the lipid metabolism-related genes. 16S rRNA sequencing of fecal samples indicated that raw and ripened PETe intervention displayed different regulatory effect on the HFD-induced gut microbiota dysbiosis at different taxonomic levels. The microbial diversity, the relative abundance of Firmicutes and Bacteroidetes as well as F/B ratio were reversed more closer to normal by ripened PETe. Phylotypes of Bacteroidaceae, Ruminococcaceae, Lachnospiraceae, Muribaculaceae, and Rikenellaceae which are negatively correlated with obesity were enhanced notably by the intervention of ripened PETe, while Erysipelotrichaceae and Lactobacillaceae which have positive correlation with obesity were decreased dramatically. In addition, the treatment of ripened PETe had better effect on the increase of benefical Bacteroides, Alistipes, and Akkemansia and decrease of obesity associated Faecalibaculum and Erysipelatoclostridium (p < 0.05). These findings suggested that pu-erh tea especially ripened pu-erh tea could serve as a great candidate for alleviation of obesity in association with the modulation of gut microbiota.
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Affiliation(s)
- Jing Ye
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China.
| | - Yan Zhao
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Xiangming Chen
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Huiyu Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Yucheng Yang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China
| | - Xueqin Zhang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China
| | - Yayan Huang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China
| | - Na Zhang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China
| | - Edmund M K Lui
- Physiology and Pharmacology, Western University, London, Ontario N6A 5B9, Canada
| | - Meitian Xiao
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen 361021, China
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Wang J, Zhang X, Shi K, Zhang Q. Optical Devices Constructed From Responsive Microgels for Polyphenols Detection. Front Chem 2021; 9:580025. [PMID: 33777892 PMCID: PMC7991913 DOI: 10.3389/fchem.2021.580025] [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: 07/04/2020] [Accepted: 02/01/2021] [Indexed: 11/30/2022] Open
Abstract
Polyphenols are used as antioxidants in various foods and beverages, which are considered to be a health benefit. The measurement of polyphenols contents is of great interest in food chemistry and health science. This work reported a microgels based photonic device (etalon) to detect polyphenols. Dopamine was used as a model compound of polyphenols. Herein, we proposed a “block” concept for dopamine detection. The dopamine was oxidized and formed dopamine films catalyzed by tyrosinase on the surface of etalon. As the etalon was immersed in ZnCl2, the dopamine films blocked the ZnCl2 diffusion into etalon that caused optical property changes. The film thickness is associated with the concentration of dopamine which can be readout via optical signals.
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Affiliation(s)
- Jingying Wang
- Department of Laboratory, 15189 Accredited Laboratory, Jilin Province Drug Resistance Monitoring Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xieli Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.,School of Applied Chemistry and Engineering University of Science and Technology of China, Hefei, China
| | - Kaiyao Shi
- Provincial Key Laboratory for Gene Diagnosis of Cardiovascular Disease, Jilin Provincial Engineering Laboratory for Endothelial Function and Genetic Diagnosis, Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Qiang Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.,School of Applied Chemistry and Engineering University of Science and Technology of China, Hefei, China
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Eurotium cristatum Fermented Loose Dark Tea Ameliorates Cigarette Smoke-Induced Lung Injury by MAPK Pathway and Enhances Hepatic Metabolic Detoxification by PXR/ AhR Pathway in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6635080. [PMID: 33777316 PMCID: PMC7972846 DOI: 10.1155/2021/6635080] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/05/2021] [Accepted: 02/26/2021] [Indexed: 01/28/2023]
Abstract
Cigarette smoke- (CS-) induced oxidative stress and inflammation in the lung are serious health problems. Primary and reprocessed tea products contain multiple antioxidants that have been reported to protect the lung against CS-induced injury. However, the beneficial effects of Eurotium cristatum fermented loose dark tea (ECT) and Eurotium cristatum particle metabolites (ECP) on CS-induced lung injury and its potential hepatic metabolic detoxification are still unclear. Therefore, sixty mice were randomly divided into six equal groups. CS-exposed mice were prevented or treated with ECP or ECT infusions for 12 or 8 weeks to determine the antioxidative stress, anti-inflammatory and potential metabolic detoxification of ECT and ECP. Thirty-six mice were randomly divided into six equal groups to observe the effects on hepatic metabolic detoxification by replacing daily drinking water with ECT. Results showed that CS significantly decreased the activities of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) and upregulated the expressions of malondialdehyde (MDA), tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), IL-8, and IL-1β in serum. These adverse effects were modulated by ECP and ECT. In addition, ECT upregulated the mRNA expression of pregnane X receptor (PXR) and cytochrome P450 (CYP450) in the liver on daily free drinking ECT mice group. Western blot analysis further revealed that in CS-exposed mice, ECP and ECT significantly decreased the phosphorylation of mitogen-activated protein kinase (MAPK) in the lung but upregulated the protein expressions of PXR and aryl hydrocarbon receptor (AhR) in the liver. Overall, our findings demonstrated that ECT and ECP protected against lung injury induced by CS via MAPK pathway and enhanced hepatic metabolic detoxification via PXR and AhR pathways. Therefore, daily intake of ECT and ECP can potentially protect against CS-induced oxidative and inflammatory injuries.
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29
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Chen X, Liu B, Tong R, Ding S, Wu J, Lei Q, Fang W. Improved Stability and Targeted Cytotoxicity of Epigallocatechin-3-Gallate Palmitate for Anticancer Therapy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:969-977. [PMID: 33393784 DOI: 10.1021/acs.langmuir.0c03449] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although with high antioxidant activity, epigallocatechin-3-gallate (EGCG) was restricted by its poor chemical stability in practical applications. One of EGCG derivatives, EGCG palmitate, was synthesized with EGCG and palmitoyl chloride to overcome instability of EGCG. However, uncertainties still exist in chemical stability and cytotoxicity of EGCG palmitate, which are essential for further exploration in anticancer therapy. Our work aims to analyze the resistance of EGCG palmitate to oxidation and summarize its targeted inhibition efficiency on cancerous cells and normal cells. High-performance liquid chromatography analysis confirmed that EGCG palmitate remained stable in air and Dulbecco's modified eagle medium (DMEM) for a longer time than EGCG. Antioxidative and pro-oxidative effects of EGCG palmitate on treated cells are proposed through reactive oxygen species (ROS) detection, respectively. It reveals that pro-oxidants by H2O2 production can exert antiproliferative and proapoptotic effects on cancerous cells and stimulate autophagy, while an antioxidant relieves oxidative stress caused by superoxide as compared to normal cells. Consequently, targeted cytotoxicity is adopted by EGCG palmitate-treated cancerous cells. Results above manifest that EGCG palmitate possesses potential to serve as a promising prodrug in anticancer treatment.
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Affiliation(s)
- Xuerui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Bingbing Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Rongliang Tong
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shiping Ding
- The National Education Base for Basic Medical Sciences, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jian Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Qunfang Lei
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Wenjun Fang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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