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Wei Y, Shao J, Pang Y, Wen C, Wei K, Peng L, Wang Y, Wei X. Antidiabetic Potential of Tea and Its Active Compounds: From Molecular Mechanism to Clinical Evidence. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11837-11853. [PMID: 38743877 DOI: 10.1021/acs.jafc.3c08492] [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: 05/16/2024]
Abstract
Diabetes mellitus (DM) is a chronic endocrine disorder that poses a long-term risk to human health accompanied by serious complications. Common antidiabetic drugs are usually accompanied by side effects such as hepatotoxicity and nephrotoxicity. There is an urgent need for natural dietary alternatives for diabetic treatment. Tea (Camellia sinensis) consumption has been widely investigated to lower the risk of diabetes and its complications through restoring glucose metabolism homeostasis, safeguarding pancreatic β-cells, ameliorating insulin resistance, ameliorating oxidative stresses, inhibiting inflammatory response, and regulating intestinal microbiota. It is indispensable to develop effective strategies to improve the absorption of tea active compounds and exert combinational effects with other natural compounds to broaden its hypoglycemic potential. The advances in clinical trials and population-based investigations are also discussed. This review primarily delves into the antidiabetic potential and underlying mechanisms of tea active compounds, providing a theoretical basis for the practical application of tea and its active compounds against diabetes.
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Affiliation(s)
- Yang Wei
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Jie Shao
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Yuxuan Pang
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Caican Wen
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Kang Wei
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Lanlan Peng
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
| | - Yuanfeng Wang
- College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, P.R. China
| | - Xinlin Wei
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P.R. China
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Zhou Y, Liu W, Cao W, Cheng Y, Liu Z, Chen X. Effect of hydrophobic property on antibacterial activities of green tea polysaccharide conjugates against Escherichia coli. Int J Biol Macromol 2023; 253:126583. [PMID: 37652321 DOI: 10.1016/j.ijbiomac.2023.126583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/24/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
We previously found that green tea polysaccharide conjugates (gTPCs) have antibacterial activity against Escherichia coli. In this study, the effect of hydrophobic property on the antibacterial activities of gTPCs was evaluated to elucidate their property-activity relationship. Three gTPCs (gTPCs-5 h, gTPCs-12 h and gTPCs-24 h) were extracted from green tea with the ethanol precipitation time of 5 h, 12 h and 24 h, respectively. These three gTPCs did not differ significantly in terms of molecular weight distribution, amino acids composition and zeta potentials. Fourier transform infrared spectroscopy results revealed that gTPCs-5 h and gTPCs-12 h processed more hydrogen bonds than gTPCs-24 h. The surface hydrophobicity and contact angle of gTPCs-5 h were larger than that of gTPCs-12 h and gTPCs-24 h. The antibacterial activity of gTPCs against E. coli decreased in the order of gTPCs-5 h > gTPCs-12 h > gTPCs-24 h. There wasn't significant difference among the zeta potentials of E. coli treated by gTPCs-5 h, gTPCs-12 h and gTPCs-24 h, but the bacterial contact angles of E. coli treated by gTPCs-5 h were higher compared with those of the other two gTPCs. Furthermore, gTPCs-5 h exhibited higher activity to decrease bacterial membrane proteins, and increase bacterial membrane permeability than the other two gTPCs. In conclusion, gTPCs with higher hydrophobicity property exhibited stronger antibacterial activity against E. coli.
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Affiliation(s)
- Yin Zhou
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
| | - Weiya Liu
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
| | - Wendan Cao
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
| | - Yong Cheng
- Zhejiang Skyherb Biotechnology Inc., Huzhou 313300, China
| | - Zhong Liu
- Hubei August Flower Food Co. LTD, Xianning 437000, China
| | - Xiaoqiang Chen
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China.
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Xiao K, Shi Y, Liu S, Chen Y, Ni D, Yu Z. Compositions and Antioxidant Activity of Tea Polysaccharides Extracted from Different Tea ( Camellia sinensis L.) Varieties. Foods 2023; 12:3584. [PMID: 37835237 PMCID: PMC10572641 DOI: 10.3390/foods12193584] [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: 08/16/2023] [Revised: 09/12/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Tea polysaccharide (TPS) is a bioactive compound extracted from tea. It has raised great interest among researchers due to its bioactivity. However, few studies focused on the diversity of TPS in its compositions and antioxidant activity. This study collected 140 different tea varieties from four tea germplasm gardens in China, and their TPSs in tea shoots were extracted. The extraction efficiency, composition contents, including neutral sugar, uronic acid, protein, and tea polyphenols, and the scavenging abilities of hydroxyl radical (·OH) and superoxide radical (O2-·) of 140 TPSs were determined and analyzed. The results showed significant differences in the compositions and antioxidant activities of TPS extracted from different tea varieties. By applying hierarchical clustering analysis (HCA), we selected nine tea varieties with high TPS extraction efficiency and 26 kinds of TPS with high antioxidant capacity.
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Affiliation(s)
- Kunyue Xiao
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (K.X.); (S.L.); (Y.C.); (D.N.)
| | - Yutao Shi
- College of Tea and Food Sciences, Wuyi University, Wuyishan 354300, China;
- Tea Engineering Research Center of Fujian Higher Education, Wuyishan 354300, China
| | - Sisi Liu
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (K.X.); (S.L.); (Y.C.); (D.N.)
| | - Yuqiong Chen
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (K.X.); (S.L.); (Y.C.); (D.N.)
| | - Dejiang Ni
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (K.X.); (S.L.); (Y.C.); (D.N.)
| | - Zhi Yu
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (K.X.); (S.L.); (Y.C.); (D.N.)
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Research on Processing-Induced Chemical Variations in Polygonatum Cyrtonema Rhizome by Integrating Metabolomics and Glycomics. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185869. [PMID: 36144615 PMCID: PMC9506285 DOI: 10.3390/molecules27185869] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022]
Abstract
Polygonatum cyrtonema rhizome (PCR), the dried sweet rhizome of Polygonatum cyrtonema Hua, is commonly used as a tonic remedy and a functional food in Asia, Europe, and North America. Multiple components, including secondary metabolites, monosaccharides, oligosaccharides, and polysaccharides, collectively contribute to the therapeutic effects of PCR. Processing time exerts a significant influence on the quality of PCR, but the various processing stages have not been comprehensively chemically profiled. It is urgent to study processing-induced chemical variations in PCR to control the processing degree. In this study, multiple chromatographic and mass spectrometric techniques were used in combination with multivariate statistical analysis to perform qualitative and quantitative research on secondary metabolites and carbohydrates in PCR during processing. The results demonstrated that PCR processing can be divided into three stages, namely the raw stage (0 h), the middle stage (1–6 h), and the late stage (8–18 h). Twenty differential compounds were screened from secondary metabolites and oligosaccharides to distinguish PCR in different processing stages. Furthermore, the chemical variations of Polygonatum cyrtonema polysaccharides (PCP) also entered a new stage after processing for 6 h. Multiple chemical mechanisms, including hydrolysis, oxidative decomposition, dehydration, Maillard reaction, and polymerization were involved in the processing. This work provides a scientific basis to reveal the relationship between processing stage and chemical variations.
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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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Tea (Camellia sinensis): A Review of Nutritional Composition, Potential Applications, and Omics Research. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12125874] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Tea (Camelliasinensis) is the world’s most widely consumed non-alcoholic beverage with essential economic and health benefits since it is an excellent source of polyphenols, catechins, amino acids, flavonoids, carotenoids, vitamins, and polysaccharides. The aim of this review is to summarize the main secondary metabolites in tea plants, and the content and distribution of these compounds in six different types of tea and different organs of tea plant were further investigated. The application of these secondary metabolites on food processing, cosmetics industry, and pharmaceutical industry was reviewed in this study. With the rapid advancements in biotechnology and sequencing technology, omics analyses, including genome, transcriptome, and metabolome, were widely used to detect the main secondary metabolites and their molecular regulatory mechanisms in tea plants. Numerous functional genes and regulatory factors have been discovered, studied, and applied to improve tea plants. Research advances, including secondary metabolites, applications, omics research, and functional gene mining, are comprehensively reviewed here. Further exploration and application trends are briefly described. This review provides a reference for basic and applied research on tea plants.
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Li Q, Shi J, Li J, Liu L, Zhao T, McClements DJ, Fu Y, Wu Z, Duan M, Chen X. Influence of thermal treatment on the physicochemical and functional properties of tea polysaccharide conjugates. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhu J, Wu M, Zhou H, Cheng L, Wei X, Wang Y. Liubao brick tea activates the PI3K-Akt signaling pathway to lower blood glucose, metabolic disorders and insulin resistance via altering the intestinal flora. Food Res Int 2021; 148:110594. [PMID: 34507739 DOI: 10.1016/j.foodres.2021.110594] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/02/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022]
Abstract
Diabetes and its related metabolic disorders are worldwide public health issues. Many studies have shown that changes in the structure and composition of the intestinal flora are closely related to the host's physiological and pathological processes. In this study, we aim to explore the effect of Liubao tea (LBT) extract on hyperglycemic mice with metabolic disorders and intestinal flora dysbiosis and to further study its regulatory effect on insulin resistance and its potential regulatory mechanism. Our results show that LBT had a good hypoglycemic effect and could significantly alleviate the metabolic disorder evoked by hyperglycemia. The gut microbial sequencing showed that LBT treatment increased the diversity of intestinal flora, increased the abundance of beneficial bacteria, and reduced the abundance of harmful or conditional pathogenic bacteria, as well as significantly altered 39 of the top 50 OTUs with abundance. Besides, LBT could activate the PI3K-Akt-PPARs-GLUT2 cascade signaling pathway to improve metabolic disorders, thereby alleviating insulin resistance. These results suggest that LBT has excellent potential to become a natural functional food for the prevention of hyperglycemia and insulin resistance.
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Affiliation(s)
- Jiangxiong Zhu
- Institute of Food Engineering, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China
| | - Meirong Wu
- Institute of Food Engineering, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China
| | - Hui Zhou
- Institute of Food Engineering, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China
| | - Lizeng Cheng
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Xinlin Wei
- Institute of Food Engineering, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China; Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
| | - Yuanfeng Wang
- Institute of Food Engineering, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China.
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Immunostimulatory Activity of Black Rice Bran in Cyclophosphamide-Induced Immunosuppressed Rats. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20934919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Black rice bran extract (BRBE), containing various biologically active compounds, such as anthocyanin, has antioxidant activity and numerous pharmacological effects. Here, we aimed to confirm the immunostimulatory effects of BRBE in cyclophosphamide (CP)-induced immunosuppressed cells. Our results confirmed that BRBE exerted an immunostimulatory effect. In vitro, BRBE treatment enhanced cell proliferation, activity of natural killer cells and cytotoxic T lymphocytes, and production of CP-repressed cytokines, such as tumor necrosis factor-α, interferon-γ, interleukin (IL)-2, and IL-12, and immunoglobulins G and A in isolated splenocytes. Additionally, in vivo, BRBE treatment increased the number of immune cells, such as white blood cells, lymphocyte counts, mid-range absolute counts, and neutrophils in CP-induced immunosuppressed rats. Furthermore, BRBE increased the serum levels of abovementioned inflammatory cytokines and immunoglobulins in CP-induced immunosuppressed rats. In addition, BRBE protected against CP-mediated spleen and thymic tissue damage. Our findings suggest that BRBE could be potentially used as a component of functional food for immunity enhancement.
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Fan M, Zhu J, Qian Y, Yue W, Xu Y, Zhang D, Yang Y, Gao X, He H, Wang D. Effect of purity of tea polysaccharides on its antioxidant and hypoglycemic activities. J Food Biochem 2020; 44:e13277. [PMID: 32557675 DOI: 10.1111/jfbc.13277] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 11/30/2022]
Abstract
The effects of purity of tea polysaccharides (TPS) on its five antioxidant activities and hypoglycemic activities in vitro were studied. The results showed that the higher the purity of TPS, the lower the antioxidant capacity. The purity of FTPSI is the highest (sugar content 80.72%), but its antioxidant activities were lower than those of Fujian tea polysaccharides (FTPS) and FTPSII. The antioxidant activity of tea polysaccharide is related to its protein and polyphenol content (Pearson r > .90). The protective effect of Zhejiang tea polysaccharides and FTPS on human umbilical vein endothelial cells (HUVEC) was better than that of its purified fractions. The inhibition rates of FTPSII (5 and 2 mg/ml) on α-glucosidase (32.76%) and α-amylase (-11.93%) were higher than those of FTPS and FTPSII. Purification does not change the basic structure of TPS. This study has certain reference value for the study of the antioxidant activities of TPS. Meanwhile, TPS can be used as a potential resource with hypoglycemic function. PRACTICAL APPLICATIONS: A large number of studies have shown that TPS have antioxidant activity. However, several studies considered that the antioxidant activity of TPS mainly comes from the residues of tea polyphenols. Therefore, the in vitro and cell antioxidant activities of TPS were studied in this paper. We believe that both glycoprotein and tea polyphenol are antioxidants of tea, and tea polysaccharide perform preferable effect on hypoglycemic. HUVEC cell model and four in vitro antioxidant test methods were used to study the antioxidant activities of TPS, and two enzyme inhibition activities were used to study the hypoglycemic effect of TPS, in order to provide a theoretical basis for the study of biological activity of TPS.
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Affiliation(s)
- Minghao Fan
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Junxiang Zhu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, People's Republic of China
| | - Yilin Qian
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Wei Yue
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Ying Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Dandan Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Yuqi Yang
- College of Science and Technology, Hebei Agricultural University, Cangzhou, People's Republic of China
| | - Xiaoya Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Haiyue He
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Dongfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
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Chen X, Zhang Y, Han Y, Li Q, Wu L, Zhang J, Zhong X, Xie J, Shao S, Zhang Y, Wu Z. Emulsifying Properties of Polysaccharide Conjugates Prepared from Chin-Brick Tea. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10165-10173. [PMID: 31398024 DOI: 10.1021/acs.jafc.9b03161] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chin-brick tea polysaccharide conjugates (TPC-C) were prepared to study their emulsion capabilities. Interfacial tension and the effects of some factors, such as storage time, metal ion concentrations (Na+, Ca2+), pH (2.0-8.0), and heat treatment (70-100 °C) on the emulsions stabilized by TPC-C were studied. The interfacial tension of TPC-C (10.88 mN/m) was lower than that of gum arabic (15.18 mN/m) at a concentration of 0.08%. As the TPC-C concentration increased from 0.1 to 3.0 wt %, the mean particle diameter (MPD) (d32) of emulsions stabilized by TPC-C decreased from 1.88 to 0.16 μm. Furthermore, at a concentration of 0.5 wt % or higher, the MPD (d32) of emulsions stabilized by TPC-C at 25 and 60 °C for 10 days was between 0.20 and 0.50 μm. In the tested pH conditions from 2.0 to 8.0, the MPD (d32) of emulsions stabilized by 2.0 wt % TPC-C was less than 0.20 μm. At Na+ concentration conditions between 0.10 and 0.50 mol/L, the MPD (d32) of emulsions was between 0.19 and 0.20 μm, and the zeta potential values varied from -34.10 to -32.60 mV. However, with an increasing Ca2+ concentration from 0.01 to 0.05 mol/L, the MPD (d32) of emulsions was between 0.20 and 21.65 μm, and the zeta potential raised sharply from -34.10 to -28.46 mV. The emulsions stabilized by TPC-C have a decent storage stability after a high-temperature heat treatment. Overall, tea polysaccharide conjugates strongly stabilized the emulsions, which support their new application as natural emulsifiers.
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Affiliation(s)
- Xiaoqiang Chen
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University (BTBU) , Beijing 100048 , China
| | - Yuntian Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Yu Han
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Qian Li
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Li Wu
- Department of Ophthalmology , Renmin Hospital of Wuhan University , Wuhan 430060 , China
| | - Jia Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Xiaoling Zhong
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Jianchun Xie
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University (BTBU) , Beijing 100048 , China
| | - Shengrong Shao
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
| | - Yinjun Zhang
- College of Biotechnology and Bioengineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Zhengqi Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education) , Hubei University of Technology , Wuhan 430068 , China
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Tao S, Lei Z, Huang K, Li Y, Ren Z, Zhang X, Wei G, Chen H. Structural characterization and immunomodulatory activity of two novel polysaccharides derived from the stem of Dendrobium officinale Kimura et Migo. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Chen X, Du Y, Wu L, Xie J, Chen X, Hu B, Wu Z, Yao Q, Li Q. Effects of Tea-Polysaccharide Conjugates and Metal Ions on Precipitate Formation by Epigallocatechin Gallate and Caffeine, the Key Components of Green Tea Infusion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3744-3751. [PMID: 30788964 DOI: 10.1021/acs.jafc.8b06681] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The mechanism of tea-infusion precipitation is not clear. Epigallocatechin gallate (EGCG) and caffeine (CAF) are the core components of green tea infusion precipitate. The critical precipitation concentration ( CCPC) of EGCG-CAF mixed aqueous solutions was assayed through a turbidity assay performed at 25 °C and verified by a differential-scanning calorimeter (DSC) for reliability. Different concentrations of the green tea polysaccharide conjugate fraction (gTPC-D), with a molecular weight of 2.32 × 105 Da, and of metal ions (K+, Mg2+, Ca2+, and Al3+) were respectively introduced into the mixed solution to study their effects on CCPC. On the basis of the changed CCPC, the clarification-precipitation phase diagrams of the mixed aqueous solutions were constructed. By calculating the integral area of the clarification phase, it was determined that the four metal ions and gTPC-D could accelerate precipitate formation with a dose-response relationship; among the metal ions, the effect of Al3+ is the strongest, followed by that of Ca2+.
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Affiliation(s)
- Xiaoqiang Chen
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University (BTBU) , Beijing 100048 , China
| | - Yu Du
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
| | - Long Wu
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
| | - Jianchun Xie
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University (BTBU) , Beijing 100048 , China
| | - Xueling Chen
- Institute for Farm Products Processing and Nuclear-agricultural Technology , Hubei Academy of Agricultural Sciences , Wuhan 430064 , China
| | - Binbin Hu
- Hubei Province Tea Deep Processing Engineering Technology Research Center , Yichang 443000 , China
| | - Zhengqi Wu
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
| | - Qifeng Yao
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
| | - Qian Li
- College of Bioengineering and Food , Hubei University of Technology , Wuhan 430068 , China
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Lee DS, Lee SH, Jeon YJ, Cheong SH. Antioxidant Effects of Short-Neck Clam (Tapes philippinarum) Water Extract Containing Taurine Against AAPH-Induced Oxidative Stress in Zebrafish Embryos. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 2:1035-1046. [PMID: 28849520 DOI: 10.1007/978-94-024-1079-2_82] [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: 03/06/2024]
Abstract
The purpose of this study was to investigate the antioxidant activities of short-neck clam water extract (SNC-WE) enriched in taurine. In the present study, the half-maximal inhibitory concentration (IC50) values of the SNC-WE for DPPH, superoxide, and alkyl radical scavenging activities determined by an electron spin resonance (ESR) spectrometer were 3.16, 1.54 and 0.58 mg/mL, respectively. Furthermore, we evaluated the inhibitory effect of taurine enriched SNC-WE against the oxidative stress induced by 2,2'-azobis dihydrochloride (AAPH) in zebrafish embryos. In the present study, we observed that taurine enriched SNC-WE significantly suppressed reactive oxygen species (ROS) production, lipid peroxidation as well as cell death in the zebrafish model. These results indicate that taurine enriched SNC-WE might have antioxidant effects in both in vitro and in vivo zebrafish model.
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Affiliation(s)
- Dong-Sung Lee
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, South Korea
| | - Seung-Hong Lee
- Division of Food Bioscience and Korea Nokyong Research Center, Konkuk University, Chungju, 27478, South Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju, 63243, South Korea
| | - Sun Hee Cheong
- Department of Marine Bio Food Science, College of Fisheries and Ocean Science, Chonnam National University, Yeosu, 550-749, South Korea.
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15
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Chen X, Shao S, Xie J, Yuan H, Li Q, Wu L, Wu Z, Yuan H, Jiang Y. Analysis of Protein Moiety of Polysaccharide Conjugates Water-extracted from Low Grade Green Tea. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7335-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Fan M, Sun X, Qian Y, Xu Y, Wang D, Cao Y. Effects of metal ions in tea polysaccharides on their in vitro antioxidant activity and hypoglycemic activity. Int J Biol Macromol 2018; 113:418-426. [DOI: 10.1016/j.ijbiomac.2018.01.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/08/2017] [Accepted: 01/07/2018] [Indexed: 01/02/2023]
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17
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Chen XQ, Zhang ZF, Gao ZM, Huang Y, Wu ZQ. Physicochemical properties and cell-based bioactivity of Pu’erh tea polysaccharide conjugates. Int J Biol Macromol 2017; 104:1294-1301. [DOI: 10.1016/j.ijbiomac.2017.03.183] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 03/28/2017] [Accepted: 03/29/2017] [Indexed: 10/19/2022]
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18
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Synchronous characterization of carbohydrates and ginsenosides yields deeper insights into the processing chemistry of ginseng. J Pharm Biomed Anal 2017. [DOI: 10.1016/j.jpba.2017.06.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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19
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Chen X, Song W, Zhao J, Zhang Z, Zhang Y. Some Physical Properties of Protein Moiety of Alkali-Extracted Tea Polysaccharide Conjugates Were Shielded by Its Polysaccharide. Molecules 2017; 22:molecules22060914. [PMID: 28561782 PMCID: PMC6152659 DOI: 10.3390/molecules22060914] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 05/08/2017] [Accepted: 05/10/2017] [Indexed: 11/16/2022] Open
Abstract
Polysaccharide conjugates were alkali-extracted from green tea (TPC-A). Although it contained 11.80% covalently binding proteins, TPC-A could not bind to the Coomassie Brilliant Blue dyes G250 and R250. TPC-A had no expected characteristic absorption peak of protein in the UV-vis spectrum scanning in the range of 200-700 nm. The UV-vis wavelength of 280 nm was not suitable to detect the presence of the protein portion of TPC-A. The zeta potential of TPC-A merely presented the negative charge properties of polysaccharides instead of the acid-base property of its protein section across the entire pH range. Furthermore, TPC-A was more stable when the pH of solution exceeded 4.0. In addition, no precipitation or haze was generated in the TPC-A/(-)-epigallocatechin gallate (EGCG) mixtures during 12 h storage. TPC-A has emulsifying activity, which indicated that its protein moiety formed hydrophobic groups. Thus, it was proposed that some physical properties of TPC-A protein were shielded by its olysaccharide, since the protein moiety was wrapped by its polysaccharide chains.
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Affiliation(s)
- Xiaoqiang Chen
- College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China.
| | - Wei Song
- Department of Food Science and Engineering, MIITKey Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China.
| | - Jin Zhao
- College of Life Science, China Jiliang University, Hangzhou 310018, China.
| | - Zhifa Zhang
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Yuntian Zhang
- College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China.
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20
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Zhou L, Xu JD, Zhou SS, Mao Q, Kong M, Shen H, Li XY, Duan SM, Xu J, Li SL. Integrating targeted glycomics and untargeted metabolomics to investigate the processing chemistry of herbal medicines, a case study on Rehmanniae Radix. J Chromatogr A 2016; 1472:74-87. [DOI: 10.1016/j.chroma.2016.10.043] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 08/18/2016] [Accepted: 10/15/2016] [Indexed: 11/28/2022]
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21
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Du LL, Fu QY, Xiang LP, Zheng XQ, Lu JL, Ye JH, Li QS, Polito CA, Liang YR. Tea Polysaccharides and Their Bioactivities. Molecules 2016; 21:E1449. [PMID: 27809221 PMCID: PMC6274327 DOI: 10.3390/molecules21111449] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 01/17/2023] Open
Abstract
Tea (Camellia sinensis) is a beverage beneficial to health and is also a source for extracting bioactive components such as theanine, tea polyphenols (TPP) and tea polysaccharides (TPS). TPS is a group of heteropolysaccharides bound with proteins. There is evidence showing that TPS not only improves immunity but also has various bioactivities, such as antioxidant, antitumor, antihyperglycemia, and anti-inflammation. However, inconsistent results concerning chemical composition and bioactivity of TPS have been published in recent years. The advances in chemical composition and bioactivities of TPS are reviewed in the present paper. The inconsistent and controversial results regarding composition and bioactivities of TPS are also discussed.
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Affiliation(s)
- Ling-Ling Du
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
- National Tea and Tea product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| | - Qiu-Yue Fu
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Li-Ping Xiang
- National Tea and Tea product Quality Supervision and Inspection Center (Guizhou), Zunyi 563100, China.
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Qing-Sheng Li
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Curt Anthony Polito
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, # 866 Yuhangtang Road, Hangzhou 310058, China.
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22
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Interactions between α-amylase and an acidic branched polysaccharide from green tea. Int J Biol Macromol 2016; 94:669-678. [PMID: 27756641 DOI: 10.1016/j.ijbiomac.2016.09.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/03/2016] [Accepted: 09/11/2016] [Indexed: 11/21/2022]
Abstract
To understand the mechanism responsible for the α-amylase inhibitory activity of tea polysaccharides, the interaction between α-amylase and an acidic branched tea polysaccharide (TPSA) was investigated using fluorescence spectroscopy and resonance light scattering analysis. TPSA, exhibiting inhibitory activity towards α-amylase (the maximum inhibition percentage of 65%), was isolated from green tea (Camellia sinensis) and characterized by nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, and gas chromatography. Synchronous fluorescence spectroscopy revealed that the binding interaction between the tryptophan residues of α-amylase and TPSA was predominant. Based on the fluorescence quenching effect of tryptophan residues induced by TPSA, the binding constants between α-amylase and TPSA were determined to be 18.6×106, 8.0×106 and 4.6×106 L·mol-1 at 20, 30 and 37°C, respectively. The calculated Gibbs free-energy changes were negative, indicating that the bonding interaction was a spontaneous process. The enthalpy and the entropy changes were -62.13 KJ·mol-1 and -0.0728 KJ·mol-1·K-1, suggesting that hydrogen bonding interactions might play a major role in the binding process. The formation of an α-amylase/TPSA complex was evidenced by fluorescence quenching and resonance light scattering analysis, and this complex could be the main contributor to the α-amylase inhibitory activity of TPSA.
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23
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Raish M, Ahmad A, Jan BL, Alkharfy KM, Ansari MA, Mohsin K, Jenoobi FA, Al-Mohizea A. Momordica charantia polysaccharides mitigate the progression of STZ induced diabetic nephropathy in rats. Int J Biol Macromol 2016; 91:394-9. [DOI: 10.1016/j.ijbiomac.2016.05.090] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 05/22/2016] [Accepted: 05/25/2016] [Indexed: 01/03/2023]
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24
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Chen G, Yuan Q, Saeeduddin M, Ou S, Zeng X, Ye H. Recent advances in tea polysaccharides: Extraction, purification, physicochemical characterization and bioactivities. Carbohydr Polym 2016; 153:663-678. [PMID: 27561538 DOI: 10.1016/j.carbpol.2016.08.022] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 07/31/2016] [Accepted: 08/08/2016] [Indexed: 01/18/2023]
Abstract
Tea has a long history of medicinal and dietary use. Tea polysaccharide (TPS) is regarded as one of the main bioactive constituents of tea and is beneficial for health. Over the last decades, considerable efforts have been devoted to the studies on TPS: extraction, structural feature and bioactivity of TPS. However, it has been received much less attention compared with tea polyphenols. In order to provide new insight for further development of TPS in functional foods, in present review we summarize the recent literature, update the information and put forward future perspectives on TPS covering its extraction, purification, quantitative determination techniques as well as physicochemical characterization and bioactivities.
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Affiliation(s)
- Guijie Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Qingxia Yuan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Muhammad Saeeduddin
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Shiyi Ou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, People's Republic of China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
| | - Hong Ye
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
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25
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Zhao R, Li G, Kong XJ, Huang XY, Li W, Zeng YY, Lai XP. The improvement effects of edible bird's nest on proliferation and activation of B lymphocyte and its antagonistic effects on immunosuppression induced by cyclophosphamide. Drug Des Devel Ther 2016; 10:371-81. [PMID: 26855562 PMCID: PMC4727516 DOI: 10.2147/dddt.s88193] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Edible bird's nest (EBN) is regarded as an immune-enhancing food in the People's Republic of China. The aim of this study is to demonstrate the efficiency of EBN in improving the immunity of mouse both in vivo and in vitro. We observed the effects of EBN on spleen lymphocytes proliferation and activation, as well as immunoglobulin isotypes as indicators. In addition, we evaluated the content of total sIgA in the intestinal juice to assess mucosal immunity. The results showed that EBN could promote the proliferation and activation of B-cells and increase IgE, IgA, IgM, and IgG3 levels. We also found that EBN extract can promote the secretion of sIgA in the small intestine. Using cyclophosphamide (CY), we established an immunosuppressed mouse model in which we identified a reversal influence on the ratio of CD3(+)/CD19(+) cells, which indicates that EBN also protects B-cells from the damage induced by CY. We also applied polymyxin B to exclude the interference of lipopolysaccharide throughout the experiment. In conclusion, we found that EBN can reduce the intestinal immune injury induced by CY by accelerating the proliferation and activation of B-cells and enhancing antibody secretion of B-cells.
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Affiliation(s)
- Ran Zhao
- Traditional Chinese Medicinal College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Geng Li
- Traditional Chinese Medicinal College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Xiu-juan Kong
- Traditional Chinese Medicinal College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Xiu-yan Huang
- Life Science College, Jinan University, Guangzhou, People’s Republic of China
| | - Wei Li
- Traditional Chinese Medicinal College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Yao-ying Zeng
- Life Science College, Jinan University, Guangzhou, People’s Republic of China
| | - Xiao-ping Lai
- Dongguan Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Dongguan, People’s Republic of China
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26
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Deng YT, Lin-Shiau SY, Shyur LF, Lin JK. Pu-erh tea polysaccharides decrease blood sugar by inhibition of α-glucosidase activity in vitro and in mice. Food Funct 2015; 6:1539-46. [DOI: 10.1039/c4fo01025f] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this report we describe a group of carbohydrates found in pu-erh tea polysaccharide (PTPS) that can decrease blood sugar by inhibiting alpha-glucosidase.
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Affiliation(s)
- Yea-Tyz Deng
- Institute of Biochemistry and Molecular Biology
- College of Medicine
- National Taiwan University
- Taipei
- Taiwan
| | - Shoei-Yn Lin-Shiau
- Institute of Oral medicine
- College of Oral Medicine
- Chung Shan Medical University
- Taichung
- Taiwan
| | - Lie-Fen Shyur
- Agricultural Biotechnology Research Center
- Academia Sinica
- Taipei
- Taiwan
| | - Jen-Kun Lin
- Institute of Biochemistry and Molecular Biology
- College of Medicine
- National Taiwan University
- Taipei
- Taiwan
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27
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Chen X, Fang Y, Nishinari K, We H, Sun C, Li J, Jiang Y. Physicochemical characteristics of polysaccharide conjugates prepared from fresh tea leaves and their improving impaired glucose tolerance. Carbohydr Polym 2014; 112:77-84. [DOI: 10.1016/j.carbpol.2014.05.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 04/29/2014] [Accepted: 05/04/2014] [Indexed: 01/19/2023]
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28
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Wang B, Jiang Y, Liu J, Zhang W, Pan S, Mao Y. Physicochemical and Functional Properties of Tea Protein. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2014. [DOI: 10.1080/10942912.2013.787537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Yu Q, Nie SP, Wang JQ, Liu XZ, Yin PF, Huang DF, Li WJ, Gong DM, Xie MY. Chemoprotective effects of Ganoderma atrum polysaccharide in cyclophosphamide-induced mice. Int J Biol Macromol 2014; 64:395-401. [DOI: 10.1016/j.ijbiomac.2013.12.029] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/07/2013] [Accepted: 12/18/2013] [Indexed: 01/01/2023]
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30
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Wang Y, Liu Y, Mao F, Liu Y, Wei X. Purification, characterization and biological activities in vitro of polysaccharides extracted from tea seeds. Int J Biol Macromol 2013; 62:508-13. [PMID: 24099943 DOI: 10.1016/j.ijbiomac.2013.09.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/29/2013] [Accepted: 09/30/2013] [Indexed: 11/29/2022]
Abstract
Three polysaccharide fractions (NTSPS, ATSPS1-1 and ATSPS2) were isolated and purified from the water extract of tea (Camellia sinensis) seeds with yields of 32.74%, 25.22%, and 11.09%, respectively. The average molecular weight of NTSPS, ATSPS1-1 and ATSPS2 was determined by HPGPC system, with an Mw of 4.588, 500 and 100 kDa, respectively. Monosaccharide analysis by ion chromatography revealed they differed from each other in monosaccharide kinds and molar ratio. Furthermore, ATSPS1-1 and ATSPS2 were heteropolysaccharide bounded with protein (2.83% and 2.12%) and 17 general amino acids were detected in them on an ion-chromatographic analyzer. The IR spectrum of ATSPS1-1 and ATSPS2 revealed the typical characteristics of polysaccharides and protein. In addition, the antitumor and immunological activity of the three polysaccharide fractions in vitro were also evaluated. It was found inhibition activity of NTSPS, ATSPS1-1 and ATSPS2 on K562 cells increased with increasing sample concentration and the inhibition ratios of them at 400 μg/mL were beyond 30.13 ± 3.54%, 36.61 ± 2.75% and 32.33 ± 2.53%, respectively. They also exhibited strong ability in promoting proliferation of mice splenic lymphocyte. Results of these studies indicated the three purified polysaccharides had a potential application as natural antitumor drugs.
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Affiliation(s)
- Yuanfeng Wang
- Institute of Food Engineering, College of Life & Environment Science, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, PR China
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31
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Extrusion treatment for improved physicochemical and antioxidant properties of high-molecular weight polysaccharides isolated from coarse tea. Food Res Int 2013. [DOI: 10.1016/j.foodres.2012.08.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Xu S, Xu X, Zhang L. Effect of Heating on Chain Conformation of Branched β-Glucan in Water. J Phys Chem B 2013; 117:8370-7. [DOI: 10.1021/jp403202u] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Shuqin Xu
- Department
of Chemistry, Wuhan University, Wuhan 430072,
China
| | - Xiaojuan Xu
- Department
of Chemistry, Wuhan University, Wuhan 430072,
China
| | - Lina Zhang
- Department
of Chemistry, Wuhan University, Wuhan 430072,
China
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33
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Xu Y, Zhang Z, Li L, Joshi MK, Huang N, Niu J, Lu Y. Catechins play key role in green tea extract–induced postprandial hypoglycemic potential in vitro. Eur Food Res Technol 2013. [DOI: 10.1007/s00217-013-1945-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Zhang N, Chen H, Ma L, Zhang Y. Physical modifications of polysaccharide from Inonotus obliquus and the antioxidant properties. Int J Biol Macromol 2013; 54:209-15. [DOI: 10.1016/j.ijbiomac.2012.12.030] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 12/06/2012] [Accepted: 12/16/2012] [Indexed: 11/30/2022]
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35
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Chen XQ, Wang XB, Guan RF, Tu J, Gong ZH, Zheng N, Yang JH, Zhang YY, Ying MM. Blood anticoagulation and antiplatelet activity of green tea (−)-epigallocatechin (EGC) in mice. Food Funct 2013; 4:1521-5. [DOI: 10.1039/c3fo60088b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Antioxidant activities potential of tea polysaccharide fractions obtained by ultra filtration. Int J Biol Macromol 2012; 50:558-64. [DOI: 10.1016/j.ijbiomac.2011.12.028] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/20/2011] [Accepted: 12/21/2011] [Indexed: 11/20/2022]
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37
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Xiao J, Huo J, Jiang H, Yang F. Chemical compositions and bioactivities of crude polysaccharides from tea leaves beyond their useful date. Int J Biol Macromol 2011; 49:1143-51. [PMID: 21946077 DOI: 10.1016/j.ijbiomac.2011.09.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 09/09/2011] [Accepted: 09/12/2011] [Indexed: 02/08/2023]
Abstract
The chemical compositions and bioactivities of crude tea polysaccharides (TPS) from the out-of-date tea leaves (beyond their useful date), namely Xihu Longjing (XTPS), Anxi Tieguanyin (TTPS), Chawentianxia (CTPS) and Huizhoulvcha (HTPS), in market were investigated. These TPS showed similar neutral sugar content and different distribution of molecular weight (1-800 kD). These crude TPS were mainly composed of rhamnose, arabinose, galactose, glucose, xylose, mannose, and galacturonic acid. IR spectra confirmed that these crude TPS were composed of polysaccharide, protein and uronic acids. These TPS showed similar DPPH scavenging activity and exhibited lower DPPH scavenging activities than Vc within 25-200 μg/mL. However, these TPS with higher concentrations (200-400 μg/mL) showed similar DPPH scavenging activity with Vc. HTPS exhibited significant higher superoxide anion scavenging activity than others TPS and gallic acid. XTPS showed significant higher inhibitory effects on α-glucosidase and α-amylase with inhibitory percentages of 64.35% and 82.24% than others TPS. TTPS, XTPS, and HTPS exhibited similar inhibition ability on α-d-glucosidase and α-amylase. The overdue tea leaves can be a resource of tea polysaccharides as function food.
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Affiliation(s)
- Jianbo Xiao
- Institute of Food Engineering, Shanghai Normal University, 100 Guilin Rd, Shanghai 200234, PR China.
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38
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Green tea polysaccharide-conjugates protect human umbilical vein endothelial cells against impairments triggered by high glucose. Int J Biol Macromol 2011; 49:50-4. [DOI: 10.1016/j.ijbiomac.2011.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 03/16/2011] [Accepted: 03/17/2011] [Indexed: 11/22/2022]
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39
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Yang L, Fu S, Zhu X, Zhang LM, Yang Y, Yang X, Liu H. Hyperbranched acidic polysaccharide from green tea. Biomacromolecules 2010; 11:3395-405. [PMID: 21028801 DOI: 10.1021/bm100902d] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An acidic tea polysaccharide (ALTPS), isolated from green tea ( Camellia sinensis ), was characterized as a hyperbranched glycoprotein containing the acidic heteropolysaccharide chains and the protein residues from the results of UV-vis, FTIR, one- and two-dimensional NMR, GC, GC-MS, and amino acid analyses. Solution properties of ALTPS were investigated by static and dynamic light scattering analyses and viscometry. The results indicated that the viscosity behavior of ALTPS exhibited a typical polyelectrolyte effect in distilled water, which may be avoided by adding salts. The low intrinsic viscosity of ALTPS in the solutions (8-15 mL/g) is attributed to its hyperbranched structure. By application of the polymer solution theory, it was revealed that ALTPS was present in a sphere-like conformation in the solutions as a result of the hyperbranched structure. The TEM image further confirmed that ALTPS existed in a spherical conformation in aqueous NaCl solution. Glucose was absorbed by ALTPS, which may be one of blood glucose lowering mechanisms of tea polysaccharides.
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Affiliation(s)
- Liqun Yang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, BME Center, State Key Laboratory of Optoelectronic Materials and Technologies, DSAPM Lab and PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China.
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