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... Agricultural drought is a temporary condition that occurs for a short period of time due to deficient precipitation on vegetation and prolonged deficiency of soil moisture. This is the result of imbalance between soil moisture and evapotranspiration. The effectiveness of horticultural practices in conserving of soil moisture and reducing of evapotranspiration area has generally been found to be hi ...
... Although copper is an essential micronutrient involved in a variety of biological processes indispensable for sustaining life, it can be toxic when administered in excess. Licorice (Glycyrrhizaglabra) has been used in Chinese folk medicine for the treatment of various disorders. Licorice has the biological capabilities of detoxication, antioxidation, and antiinfection. Here, we test the hypothesis ...
... In current study, Yellow perch (P. flavescens) was exposed to common forms of physical stressors and antioxidative effects of dietary incorporated Astragalus membranaceus (AM) and Glycyrrhiza glabra (liquorice) were assessed. To address this, for a four-week five groups of fish (31±1.0g, average weight) received 1, 2, and 3% (w/w) Glycyrrhiza glabra; and 1% G. glabra- A. membranaceus mixture daily ...
... This study was conducted to investigate the antibacterial and antiadhesive activities of ethanol extracts from five edible plant parts: cinnamon bark (Cinnamomum zeylanicum), licorice root (Glycyrrhiza radix), nettle leaves (Urtica dioica), green tea leaves (Camellia sinensis), and elderberry flowers (Sambucus nigra). The chemical constituents of the extracts were identified using high-performance ...
Western blotting; antineoplastic activity; antioxidant activity; apoptosis; catalase; cell proliferation; cell viability; chalcone; dose response; free radicals; human cell lines; licorice; life cycle assessment; median effective concentration; medicinal plants; mitogen-activated protein kinase; neoplasm cells; neoplasms; oxidation; proteins; signal transduction; superoxide dismutase; traditional medicine
Abstract:
... Licochalcone A (LCA) is a characteristic chalcone that is found in licorice, which is a traditional medicinal plant. In traditional medicine, LCA possesses many potential biological activities, including anti-parasitic, anti-inflammatory and antitumor activities.To determine the antioxidant activity of LCA and, on this basis, to investigate the role of its anticancer activity.To validate the antio ...
gas chromatography-mass spectrometry; grapes; leather; licorice; odor compounds; odors; red wines; sensory evaluation; solid phase extraction; tobacco
Abstract:
... The aroma of La Mancha Malbec red wines over four consecutive vintages was characterized by chemical and sensory analysis. Solid phase extraction (SPE) and gas chromatography–mass spectrometry (GC–MS) were used to isolate and analyze free volatile compounds. Quantitative Descriptive Sensory Analysis (QDA) was carried out to characterize the sensory aroma profile. A total of 79 free volatile compou ...
... The research work presented herein was undertaken with a view to develop, characterize and highlight modified cotton fabrics that acquire durable antibacterial activity in concomitant with high metal sorption capacity. The development is based on reacting cotton cellulose previously oxidized by sodium periodate-with 4 amino-1,2,4 triazole in presence and absence of silver nano particles (AgNPs). T ...
Oriental traditional medicine; cytotoxicity; dissociation; fluorescence; hepatocytes; hepatoma; human cell lines; licorice; ligands; neoplasm cells; receptors; synthesis
Abstract:
... Glycyrrhetinic acid (GA) is a natural active component from licorice, which is broadly used in traditional Chinese medicine. Lots of glycyrrhetinic acid receptors (GA-R) are proved to locate on the surface of liver cells. Many reports about the hepatocellular carcinoma (HCC) treatment were dependent on GA modified carriers. However, the reality of GA-R in HCC cells was not clear. In this paper, 18 ...
... Secondary metabolites are usually the bioactive components of medicinal plants. The difference in the secondary metabolisms of closely related plant species and their hybrids has rarely been addressed. In this study, we conducted a holistic secondary metabolomics analysis of three medicinal Glycyrrhiza species (G. uralensis, G. glabra, and G. inflata), which are used as the popular herbal medicine ...
... KEY MESSAGE : CYP716A179, a cytochrome P450 monooxygenase expressed predominantly in tissue-cultured stolons of licorice (Glycyrrhiza uralensis), functions as a triterpene C-28 oxidase in the biosynthesis of oleanolic acid and betulinic acid. Cytochrome P450 monooxygenases (P450s) play key roles in the structural diversification of plant triterpenoids. Among these, the CYP716A subfamily, which fun ...
... Temporal check‐all‐that‐apply (TCATA) is a rapid method where attributes are actively checked and unchecked to track sensations over time, so that the checked words fully describe the sample in any given moment. Here, we characterize the temporal profiles of sweeteners using TCATA. In two experiments, sweeteners were tested in water at concentrations known to elicit weak to moderate sweetness. Bef ...
Glycyrrhiza; antioxidant activity; flavonoids; hygroscopicity; licorice; powders; vacuum drying; water solubility; Eastern European region; Russia
Abstract:
... Licorice is the dried root of Glycyrrhiza plants, which have long been used as flavourings, sweeteners, demulcents and expectorants in Western countries; as anti-allergic and anti-inflammatory drugs in China and Japan; and as therapeutics for diseases, such as cancers, heart disease and diabetes, in Russia and Eastern Europe. Licorice extract powder is the aqueous extract of licorice. Lycyrrhizic ...
... Background : Several methods for the treatment of colon cancer have been introduced, but none of them are safe and effective. We planned to evaluate the inhibitory effect of protein extract of licorice root on HT-29 and CT26 cell lines proliferation and apoptosis. Methods : Protein extract of licorice root was prepared in phosphate-buffered solution, and SDS-PAGE was used to isolate its fractions. ...
... The objective of this study was to investigate the role of liquorice extract (LE) as a dietary antioxidant supplement in the regulation of muscle antioxidant enzyme in lambs. Fifty Tan male lambs were randomly allocated among five groups with LE supplementation at levels of 0, 1000, 2000, 3000 and 4000mg/kg feed, respectively. After 120days of feeding, the lambs were slaughtered and the longissimu ...
... Comprehensive two-dimensional liquid chromatography (LC × LC) is ever gaining interest in food analysis, as often, food-related samples are too complex to be analyzed through one-dimensional approaches. The use of hydrophilic interaction chromatography (HILIC) combined with reversed phase (RP) separations has already been demonstrated as a very orthogonal combination, which allows attaining increa ...
Glycyrrhiza uralensis; Oriental traditional medicine; bioactive compounds; environmental impact; genes; glycyrrhizin; licorice; provenance; temperature
Abstract:
... Licorice derived from Glycyrrhiza uralensis Fisch is an important traditional Chinese medicine. The cultivated licorice has gradually replaced the wild licorice, becoming the main source, while its quality is unstable. To explore the influence of genetic and environment on the quality of cultivated licorice, the growth characteristics and the contents of glycyrrhizin and liquiritin of eight-year-o ...
... In an attempt to discover bioactive agents from the herbal medicine Glycyrrhiza glabra (widely known as licorice), 11 new phenolic compounds, glycybridins A–K (1–11), along with 47 known phenolics (12–58) were isolated. Their structures were elucidated on the basis of extensive NMR and MS analyses as well as experimental and computed ECD data. According to the clinical therapeutic effects of licor ...
... Endometriosis is a continuous inflammation of uterine endometrium that usually affects women of reproductive age. Glycyrrhizin, a triterpene isolated from the roots and rhizomes of licorice (Glycyrrhiza glabra), has been known to have anti-inflammatory effect. The purpose of this study was to investigate the anti-inflammatory effect of glycyrrhizin on LPS-stimulated mouse endometrial epithelial ce ...
... Porcine epidemic diarrhea (PED), caused by porcine epidemic diarrhea virus (PEDV) infection, leads to significant economic losses in the swine industry worldwide. In our studies, we found that glycyrrhizin, the major component of licorice root extracts, could moderately inhibit PEDV infection in Vero cells, when analyzed by western blot, qRT-PCR and a plaque formation assay. We also revealed that ...
Mentha piperita nothosubsp. piperita; enantiomers; hesperetin; ionization; leaves; licorice; liquid chromatography; monitoring; naringenin; spectrometers; tandem mass spectrometry
Abstract:
... An LC-ESI-MS/MS method enabling the enantioseparation of six flavanones (flavanone, naringenin, hesperetin, eriodictyol, liquiritigenin and pinostrobin) was developed and validated. Separation occurred in gradient mode on a Chiralpak AD-3R column. Detection was performed in positive ionization mode with multiple reaction monitoring (MRM) on a triple quadrupole tandem mass spectrometer equipped wit ...
... The Glycyrrhiza genus, in the Fabaceae family, includes numerous medicinal and edible herbs that contain a wide range of phytochemicals which are used pharmaceutically and commercially. Glycyrrhiza spp. are under the threat of overexploitation and depletion; therefore, there is an urgent need for conservation. It is advantageous to develop in vitro techniques not only for propagation, multiplicati ...
Glycyrrhiza inflata; NAD ADP-ribosyltransferase; Western blotting; antineoplastic activity; antioxidants; apoptosis; cell proliferation; cell transformation assay; death domain receptors; human cell lines; humans; licorice; melanoma; membrane potential; mitochondrial membrane; neoplasm cells; organic compounds; roots; skin neoplasms; squamous cell carcinoma; staining
Abstract:
... Licochalcone B (Lico B), which is normally isolated from the roots of Glycyrrhiza inflata (Chinese Licorice), generally classified into organic compounds including retrochalcones. Potential pharmacological properties of Lico B include anti‐inflammatory, anti‐bacterial, anti‐oxidant, and anti‐cancer activities. However, its biological effects on melanoma and squamous cell carcinoma (SCC) are unknow ...
Derris; body weight; caudal vein; fractionation; humans; licorice; liquid chromatography; mice; sensory evaluation; stems; sucrose; sweet-tasting compounds; sweetness; tandem mass spectrometry; taste; toxicity; triterpenoid saponins; China
Abstract:
... With the aim to investigate the sweet-tasting compounds in Derris eriocarpa How (a substitute for licorice in “Zhuang” and “Dai” ethnopharmacy in Guangxi and Yunnan provinces of China) as well as to ascertain why the stem of D. eriocarpa can be used to substitute for licorice in the sweetness taste aspect, taste sensory-guided fractionation was conducted to isolate sweet constituents from the extr ...
... The causative agent of Grapevine Downy Mildew, the oomycete Plasmopara viticola, poses a serious threat to viticulture. In the current work, the contractile vacuole of the zoospore is analysed as potential target for novel plant protection strategies. Using a combination of electron microscopy, spinning disc confocal microscopy, and video differential interference contrast microscopy, we have foll ...
... Isoliquiritin, a flavonoid glycoside compound from licorice, possesses a broad spectrum of pharmacological activities including antioxidant, anti-inflammatory and anti-depression activities. However, the neuroprotective mechanisms of antidepressant effects remain unclear. In this study, the aim was to investigate the cytoprotective efficiency and potential mechanisms of isoliquiritin in corticoste ...
atopic dermatitis; black currants; ceramides; compliance; dogs; emulsions; essential fatty acids; licorice; pruritus; roots; skin lesions; therapeutics; veterinary medicine
Abstract:
... BACKGROUND: Lipid‐based emulsions can be useful for the management of canine atopic dermatitis (cAD). 18‐beta glycyrrhetinic acid (GRA), a component of liquorice root, has anti‐inflammatory and anti‐pruritic effects. HYPOTHESIS/OBJECTIVES: To evaluate the effects of a topical lipid emulsion containing ceramides, fatty acids and GRA on clinical signs of cAD and skin barrier in a randomized, double‐ ...
... To study the antioxidant capacity (AC) regeneration of tert-butylhydroquinone (TBHQ) by tea polyphenols (TPs), a separable system has been designed for its evaluation. The AC values of three natural food matrices (liquorice, oat, and ginger) and TBHQ regenerated by TPs were all higher than their controls, and similar to the initial values (p<0.05). The average regeneration efficiency (RE) value wa ...
... To explore the recent 20 years' herbal administration rules in TCM treatments of ovarian cysts (OCs) based on data mining.A prescription database for ovarian cysts was established by ACCESS 2007. Importing the database into SPSS17.0 and SPSS Modeler14.1. SPSS17.0 was used for descriptive and cluster analyses, while SPSS Modeler14.1 was used for association rules analysis.After screening, 363 presc ...
Glycyrrhiza uralensis; acetaminophen; active ingredients; carbon tetrachloride; cell viability; chalcones; hepatoprotective effect; human cell lines; licorice; liver; phenolic compounds; screening
Abstract:
... Licorice and its constituents, especially licorice flavonoids have been reported to possess significant hepatoprotective activities. However, previous studies mainly focus on the extract and major compounds, and few reports are available on other licorice compounds.This work aims to evaluate the in vitro hepatoprotective activities of licorice compounds and screen active compounds, and to establis ...
... Rezaei S, Nejadsattari T, Assadi M, Khavarinejad RA,Mehregan I. 2017. Study of glycyrrhizic acid contents from Glycyrrhiza glabra populations in Iran and their relation with environmental factors. Biodiversitas 18: 212-220. Glycyrrhizin (glycyrrhizic acid) is an important chemical composition of licorice (Glycyrrhiza glabra L.) from which is 50 times sweeter than sucrose. In this study, the amount ...
Candida albicans; Candida glabrata; Glycyrrhiza glabra; antifungal agents; cell membranes; cytoplasm; drug resistance; flow cytometry; licorice; medicinal plants; membrane potential; methanol; public health; researchers; toxicity; transmission electron microscopy; yeasts
Abstract:
... Medicinal plants and their botanical formulations have gained a pivotal attention among scientific researchers mainly due to its action as health promoters. Licorice (Glycyrrhiza glabra L.) constitutes a great example, with an increasingly evidenced antimicrobial potential. Opportunistic yeast infections constitute an alarming public health problem, highly exacerbated by the inefficacy of antifung ...
... Licorice (Glycyrrhiza glabra) has been considered as an herbal drug since ancient time. Nowadays, it is a well‐known spice that possesses worth pharmacological effects. However, some relevant articles have revealed negative impacts of licorice in health. By considering the great wishes in using herbal medicine, it is important to show adverse effects of herbal medicine in health. At present, there ...
... Licorice has immunomodulatory and anti-asthmatic properties. This study aims to test the effect of licorice on pulmonary fibrosis (PF). PF was induced in mice through bleomycin instillation. One group of the mice received bleomycin (positive control), another one received phosphate-buffered saline and the other two received 300 mg/kg of the extracts for 20 days after the bleomycin instillation. He ...
... The study of food choice, one of the most complex human traits, requires an integrated approach that takes into account environmental, socio-cultural and biological diversity. We recruited 183 volunteers from four geo-linguistic groups and highly diversified in terms of both genetic background and food habits from whom we collected genotypes and phenotypes tightly linked to taste perception. We co ...
... The sweetest tasting molecule known is the protein thaumatin, first isolated from the katemfe fruit, Thaumatococcus daniellii. Thaumatin is used in the food and beverage industry as a low-calorie sugar substitute. Thaumatin interacts with taste receptors in the oral cavity eliciting a persistent sweet taste and a bitter, liquorice flavor. Recombinant thaumatin was expressed in Pichia pastoris and ...
NAD ADP-ribosyltransferase; adverse effects; antineoplastic activity; apoptosis; autophagy; cell growth; chalcone; doxorubicin; drug therapy; flow cytometry; human cell lines; humans; licorice; multiple drug resistance; necrosis; neoplasm cells; protein synthesis; rapamycin; sarcoma; uterine neoplasms
Abstract:
... Uterine sarcoma is a rare gynecologic cancer. Doxorubicin (Dox) is widely used for treating several cancers, including uterine sarcoma. However, multidrug resistance is a major clinical problem and a critical cause of treatment failure. Strategies for increasing chemosensitivity and reducing the dose of chemotherapeutic agents should be established to prevent drug side effects, and the development ...
Glycyrrhiza; chemical composition; flavorings; licorice; mass spectrometry; metabolites; metabolome; metabolomics; rhizomes; roots; statistical analysis; sweets; tobacco
Abstract:
... The roots and rhizomes of licorice plants (genus Glycyrrhiza L.) are commercially employed, after processing, in confectionery production or as sweetening and flavouring agents in the food, tobacco and beer industries. G. glabra, G. inflata and G. uralensis are the most significant licorice species, often indistinctly used for different productions. Licorice properties are directly related to its ...
... PURPOSE: Nutrition is indispensable for cell survival and proliferation. Thus, loss of nutrition caused by serum starvation in cells could induce formation of reactive oxygen species (ROS), resulting in cell death. Liquiritigenin (LQ) is an active flavonoid in licorice and plays a role in the liver as a hepatic protectant. METHODS: This study investigated the effect of LQ, metformin [an activator ...
... Application of the sensomics concept elucidated the key odorants of heat-processed licorice (Succus Liquiritiae). Forty-nine aroma-active compounds with flavor dilution (FD) factors between 16 and 2048 were detected; 47 thereof were identified, 23 for the first time in heated licorice. 4-Hydroxy-2,5-dimethylfuran-3(2H)-one revealed the highest FD factor of 2048, followed by 3-hydroxy-4,5-dimethylf ...
Euphorbia kansui; metabolism; nicotinamide; urine; biomarkers; models; least squares; biochemical pathways; seleno amino acids; ultra-performance liquid chromatography; toxicity; licorice; mass spectrometry; metabolomics; Oriental traditional medicine; rats
Abstract:
... Kansui, the root of Euphorbia kansui T.N. Liou ex T.P. Wang (Euphorbiaceae), is a well-known poisonous traditional Chinese medicine (TCM). However, many monographs of TCM indicated that it cannot be co-used with licorice, as kansui-licorice is a typical “eighteen incompatible” medicaments. Our previous studies have indicated that kansui was effective in treating malignant pleural effusion (MPE), a ...
... BACKGROUND: Ion‐pair extraction combined with liquid chromatography–tandem mass spectrometry method has been proposed for the determination of biogenic amines in licorice samples. RESULTS: Limit of detection and limit of quantitation for the biogenic amines were 1.4–2.7 and 4.7–9.1 ng mL⁻¹, respectively. Relative standard deviations based on five replicate extraction of 100 ng mL⁻¹ of each biogeni ...
... Chinese liquorice/licorice (Glycyrrhiza uralensis) is a leguminous plant species whose roots and rhizomes have been widely used as a herbal medicine and natural sweetener. Whole‐genome sequencing is essential for gene discovery studies and molecular breeding in liquorice. Here, we report a draft assembly of the approximately 379‐Mb whole‐genome sequence of strain 308‐19 of G. uralensis; this assem ...
... Effects of composite natural antioxidants on the fat oxidation, textural and sensory properties of Cantonese sausage were investigated. Results indicated that Cantonese sausages with composite natural antioxidants obtained lower acidity value (AV), peroxide value (POV), 2‐thiobarbituric acid‐reactive substances (TBARs) and total free fatty acids (TFFA) compared to the controls, indicating that the ...
... Glycycoumarin (GCM) is a representative of coumarin compounds isolated from licorice, a popular herbal plant which is widely used to treat various diseases including liver diseases. This study was designed to evaluate the protective effects of GCM on hepatic steatosis in the setting of non-alcoholic fatty liver disease using both cell culture model of OA(oleic acid)/PA(palmitate acid)-induced lipi ...
... The metabolism of the chemoprevention agent licochalcone A, which is a chemopreventive chalcone found in abundance in the licorice species Glycyrrhiza inflata, was investigated using human liver microsomes and human hepatocytes combined with analysis using high performance liquid chromatography-mass spectrometry (LC-MS). Five oxygenated phase I metabolites of licochalcone A were formed by human li ...
breast neoplasms; dose response; licorice; luciferase; neoplasm cells; signal transduction; small interfering RNA; transactivators; transcription (genetics); transfection
Abstract:
... We have previously documented that isoliquiritigenin (ISL), a dietary compound extracted from licorice, could exert anti-breast cancer effects via inhibition of miR-21, however, the intrinsic mechanisms remain obscure. Herein, we discovered that ISL down-regulated the primary miR-21 (pri-miR-21) and mature miR-21 expression in a dose-dependent manner, indicating transcriptional silencing of miR-21 ...
... Licorice, an edible and officinal plant, has attracted considerable attention for its wide range of pharmacological activities. The present study focused on the protective effect of licorice on aging rats and on exploring its potential mechanisms. Aging in rats was induced by d-gal (300 mg kg⁻¹) for 5 weeks continuously with intraperitoneal injection, while control rats received physiological sali ...
AMP-activated protein kinase; anti-inflammatory activity; foods; human cell lines; humans; inflammation; interleukin-1beta; interleukin-6; interleukin-8; licorice; messenger RNA; mitogen-activated protein kinase; phosphorylation; protein transport; rheumatoid arthritis; transcription factor NF-kappa B
Abstract:
... Liquiritin is one of flavone compounds derived from licorice, a common flavoring and sweetening agent in food products. This study investigated the effects and mechanisms of liquiritin in interleukin (IL)-1β-stimulated SW982 human synovial cells, which is a useful tool to study the inflammatory response of rheumatoid arthritis (RA). The SW982 cells were pretreated with various concentrations (0, 1 ...
... Licorice, an important herbal medicine, is derived from the dried roots and rhizomes of Glycyrrhiza genus plants. It has been widely used in food, pharmaceutical, tobacco, and cosmetics industries with high economic value. However, overexploitation of licorice resources has severely destroyed the local ecology. Therefore, producing bioactive compounds of licorice through the biotransformation and ...
bioactive compounds; dermatitis; flavonoids; glycyrrhizin; hydrophilic interaction chromatography; hydrophilicity; ion exchange; ionic strength; licorice; pH; reversed-phase liquid chromatography; salt concentration; solid phase extraction; viral hepatitis; water content
Abstract:
... Glycyrrhizin (GA), a major bioactive compound in licorice, has been extensively used throughout the world as a medicine to treat chronic viral hepatitis and allergic dermatitis. In this study, a new method based on hydrophilic interaction solid phase extraction (HILIC-SPE) and preparative reversed-phase liquid chromatography (prep-RPLC) was developed to purify GA with high purity from the complex ...
... Triptolide (TP) from Tripterygium wilfordii has been demonstrated to possess anti-inflammatory, immunosuppressive, and anticancer activities. TP is specially used for the treatment of awkward rheumatoid arthritis, but its clinical application is confined by intense side effects. It is reported that licorice can obviously reduce the toxicity of TP, but the detailed mechanisms involved have not been ...
adverse effects; anti-inflammatory activity; clinical trials; digestive system; drugs; flavonoids; free radicals; in vitro studies; licorice; maximum tolerated dose; models; pain; pharmacokinetics; triterpenoids; tumor necrosis factors; China
Abstract:
... Context: Increasing incidence and impact of inflammatory diseases have encouraged the search of new pharmacological strategies to face them. Licorice has been used to treat inflammatory diseases since ancient times in China. Objective: To summarize the current knowledge on anti-inflammatory properties and mechanisms of compounds isolated from licorice, to introduce the traditional use, modern clin ...
... The wild species are considered as primary and secondary genepools for the world’s most important food crops. Here, we sequenced the complete chloroplast (cp) genome sequence of an American wild licorice, Glycyrrhiza lepidota for the first time to investigate their phylogenetic relationship among inverted-repeat-lacking clade (IRLC) legumes. The total length of the chloroplast genome is 127,939 bp ...
elderly; flavonoids; licorice; men; muscles; oils; osteoarthritis; placebos; women
Abstract:
... BACKGROUND: The present study evaluated the effects of licorice flavonoid oil (LFO) with respect to increasing the muscle mass of elderly populations using a randomized, double‐blind, placebo‐controlled study. Fifty participants aged 54–90 years (seven men, 43 women), who underwent rehabilitation treatment for osteoarthritis of the knee, were examined and assigned to either the LFO group (n = 26) ...
Anemarrhena; actin; bioinformatics; body weight; butylated hydroxytoluene; fever; gene expression regulation; gene ontology; gypsum; licorice; lipopolysaccharides; liquid chromatography; liver; major histocompatibility complex; models; phagocytosis; phagosomes; protein content; protein synthesis; proteomics; rabbits; rhizomes; ribosomes; rice; structural proteins; tandem mass spectrometry; thirst; traditional medicine
Abstract:
... Bai-Hu-Tang (BHT), a classical anti-febrile Chinese formula comprising of liquorice, anemarrhena rhizome, gypsum and rice, has been traditionally used to anti-febrile treatment and promote the production of body fluid to relieve thirst. In this paper, we aim to explore anti-febrile mechanism of BHT at protein level through analyzing alteration of differentially expressed proteins (DEPs) both lipop ...
... BACKGROUND: The increasing use of complementary and alternative medicine (CAM) has kindled the need for scientific evaluation of the mechanism of action of CAMs. Although, licorice, a common ingredient in many Traditional Chinese medicine (TCM) has attracted great attention for its antitumor and immunomodulatory activities, the mechanism of action of its polysaccharides is still unclear. Here we r ...