Structural Characterization and Antioxidant Activities of 2 Water‐Soluble Polysaccharide Fractions Purified from Tea (<i>Camellia sinensis</i>) Flower

Han, Qian; Q, Yu; Shi, Jiang; Xiong, Changyun; Ling, Ze-jie; He, Ping

doi:10.1111/j.1750-3841.2011.02063.x

Cited by 91 publications

(31 citation statements)

References 60 publications

(55 reference statements)

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“…AFM is a powerful technique for directly observing the conformation of macromolecules under conditions that closely mimic the environments from which they originated (Han et al, 2011; Wang J. et al, 2014). It is clear from these images that the exopolysaccharide is linear and crossover in structure and branched or coiled in aqueous solution.…”

Section: Resultsmentioning

confidence: 99%

Characterization and Anti-Inflammatory Potential of an Exopolysaccharide from Submerged Mycelial Culture of Schizophyllum commune

Yang

Bian

et al. 2017

Front. Pharmacol.

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Background and Purpose: Mushroom polysaccharides have attracted attention in food and pharmacology fields because of their many biological activities. The structure characterization and anti-inflammatory activity of exopolysaccharide from Schizophyllum commune were evaluated in present study.Methods: An exopolysaccharide from a submerged mycelial fermentation of S. commune was obtained using DEAE-52 cellulose and Sephadex G-150 chromatography. The molecular weight (MW), monosaccharide compositions, chemical compositions, methylation analysis, circular dichroism studies, Fourier transform infrared spectroscopy, nuclear magnetic resonance (NMR) spectra, scanning electron microscopy (SEM), and atomic force microscopy were investigated.Results: It was a homogeneous protein-bound heteropolysaccharide with MW of 2,900 kDa. The exopolysaccharide contained a β-(1→3) glycosidic backbone, (1→4)- and (1→6)- glycosidic side chain, and high amount of glucose. The anti-inflammatory activity of exopolysaccharide was assessed by inhibiting the production of nitric oxide (NO), inducible nitric oxide synthase (iNOS), and 5- lipoxygenase (5-LOX) from macrophages. This exopolysaccharide significantly (p < 0.05) inhibited lipopolysaccharides-induced iNOS expression levels in the cells in a dose-dependent manner.Conclusion: It indicated significant anti-inflammatory effects, which showed that exopolysaccharide might be exploited as an effective anti-inflammatory agent for application in NO-related disorders such as inflammation and cancer.

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Section: Resultsmentioning

confidence: 99%

Characterization and Anti-Inflammatory Potential of an Exopolysaccharide from Submerged Mycelial Culture of Schizophyllum commune

Yang

Bian

et al. 2017

Front. Pharmacol.

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“…The antioxidant activities of polysaccharides are mainly associated with their characteristics, such as their monosaccharide compositions and molecular weights 43 . The monosaccharide compositions and molecular weights of EPS and DEPS were investigated in this study.…”

Section: Discussionmentioning

confidence: 99%

Hepatoprotective and in vitro antioxidant effects of native depolymerised-exopolysaccharides derived from Termitomyces albuminosus

Zhao

Zhang

et al. 2017

Sci Rep

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In this study, native depolymerised-exopolysaccharides (DEPS) were successfully derived from the exopolysaccharides (EPS) of Termitomyces albuminosus, and its hepatoprotective effects against a high-fat emulsion and in vitro antioxidant activities were investigated. Based on the results of in vitro assays, DEPS showed superior antioxidant activities compared with EPS dose-dependently. According to the in vivo assays both EPS and DEPS significantly decreased the lipid levels, improved the enzymatic activities, and reduced lipid peroxidation in both serum and hepatic homogenates. Furthermore, EPS and DEPS attenuated the high-fat emulsion-induced histopathological injury to the liver. Both EPS and DEPS might be used as natural drugs to treat and protect against hyperlipidaemia and liver injury induced by a high-fat emulsion. In addition, based on the results of GC and HPLC analyses, rhamnose and low molecular weight compounds may play an important role in contributing to the antioxidant activities of EPS and DEPS.

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“…It was found that cell wall of tea leaves and flowers contain water soluble polysaccharides which has immense health benefits like antioxidant, hypoglycemic, anti HIV, anti cancer, anti blood coagulant, anti radiation, and hepatoprotective (Quana et al 2011;Nie and Xie 2011;Xu et al 2012).…”

Section: Extraction Of Polysaccharide From Tea Leaves and Flowersmentioning

confidence: 99%

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Banerjee

Chatterjee

2014

J Food Sci Technol

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Tea is a popular daily beverage worldwide. Modulation and modifications of its basic components like catechins, alkaloids, proteins and carbohydrate during fermentation or extraction process changes organoleptic, gustatory and medicinal properties of tea. Through these processes increase or decrease in yield of desired components are evident. Considering the varied impacts of parameters in tea production, storage and processes that affect the yield, extraction of tea biomolecules at optimized condition is thought to be challenging. Implementation of technological advancements in green chemistry approaches can minimize the deviation retaining maximum qualitative properties in environment friendly way. Existed extraction processes with optimization parameters of tea have been discussed in this paper including its prospects and limitations. This exhaustive review of various extraction parameters, decaffeination process of tea and large scale cost effective isolation of tea components with aid of modern technology can assist people to choose extraction condition of tea according to necessity.

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Structural Characterization and Antioxidant Activities of 2 Water‐Soluble Polysaccharide Fractions Purified from Tea (Camellia sinensis) Flower

Cited by 91 publications

References 60 publications

Characterization and Anti-Inflammatory Potential of an Exopolysaccharide from Submerged Mycelial Culture of Schizophyllum commune

Characterization and Anti-Inflammatory Potential of an Exopolysaccharide from Submerged Mycelial Culture of Schizophyllum commune

Hepatoprotective and in vitro antioxidant effects of native depolymerised-exopolysaccharides derived from Termitomyces albuminosus

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

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