Antioxidant activity of a polysaccharide from Dictyophora indusiata volva and MECC analysis of its monosaccharide composition
TL;DR: In this paper, a crude polysaccharide (PDI) was extracted from D.indusiata volva and the antioxidant activities of PDI were examined by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical, hydroxyl radical and ABTS radicals scavenge assay.
About: This article is published in Journal of the Indian Chemical Society.The article was published on 2021-10-01. It has received 7 citations till now. The article focuses on the topics: Monosaccharide & ABTS.
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TL;DR: Wang et al. as discussed by the authors extracted the polysaccharide isolated from Piperis Dahongpao with the method of water-extraction and alcohol-precipitation and showed that PDP-1 had a strong scavenging ability for DPPH free radicals, Hydroxyl free radicals and ABTS free radicals.
2 citations
TL;DR: In this paper , the physical, nutritional, antioxidant and sensory properties, as well as the starch digestibility of wheat bread containing Dictyophora Indusiata powder (DIP) as a functional addition were investigated.
Abstract: This study aimed to investigate the physical, nutritional, antioxidant and sensory properties, as well as the starch digestibility of wheat bread containing Dictyophora Indusiata powder (DIP) as a functional addition. Results showed that though the specific volume of wheat breads decreased with the addition of DIP, the chewiness showed an increased trend. The wheat bread containing DIP showed significantly higher (p < 0.05) content of protein and dietary fiber compared to the control bread. On the other hand, with the addition of DIP, the total phenolic content and antioxidant properties of wheat bread significantly (p < 0.05) increased. The moisture and texture of bread during storage improved significantly (p < 0.05), and the enthalpy of bread decreased significantly (p < 0.05) in staling period. In conclusion, the wheat bread added with DIP could be a feasible baking-products with improved nutritional, antioxidant properties and bread staling.
2 citations
TL;DR: In this article, the crud polysaccharide (AVP) was extracted with the methods of water-extraction and alcohol-precipitation from Tangyin Artemisia vulgaris L. and the structure characterization of AVP-II was expressed by the combination of chemistry and spectroscopy analysis.
1 citations
TL;DR: In this paper , the crud polysaccharide (AVP) was extracted with the methods of water-extraction and alcohol-precipitation from Tangyin Artemisia vulgaris L. The results showed that the molecular weight of AVP-II was 2.58 × 103 KDa.
1 citations
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TL;DR: A method for the screening of antioxidant activity is reported as a decolorization assay applicable to both lipophilic and hydrophilic antioxidants, including flavonoids, hydroxycinnamates, carotenoids, and plasma antioxidants.
18,580 citations
TL;DR: As a general rule the ethanol extracts of plants belonging to the Verbenaceae family showed lower EC50 values than the other plant extracts, among the partitions, the more polar ones (ethyl acetate and n‐butanol) are those that generally have higher antioxidant activity (AA).
Abstract: Brazilian plant extracts belonging to 16 species of 5 different families (71 extracts) were tested against the stable DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free-radical. The ability to scavenge DPPH radical was measured in these experiments by the discoloration of the solution. Ginkgo biloba and rutin, commonly used as antioxidants for medical purposes, were used as standards. Based on our results, we can say that as a general rule the ethanol extracts of plants belonging to the Verbenaceae family showed lower EC50 values than the other plant extracts. Among the partitions, the more polar ones (ethyl acetate and n-butanol) are those that generally have higher antioxidant activity (AA). Copyright © 2001 John Wiley & Sons, Ltd.
1,986 citations
TL;DR: The present review analyzes the pecularities of polysaccharides derived from fruiting bodies and cultured mycelium in selected examples of medicinal mushrooms and concludes that high molecular weight glucans appear to be more effective than those of low molecular weight.
Abstract: The number of mushrooms on Earth is estimated at 140,000, yet maybe only 10% (approximately 14,000 named species) are known. Mushrooms comprise a vast and yet largely untapped source of powerful new pharmaceutical products. In particular, and most importantly for modern medicine, they represent an unlimited source of polysaccharides with antitumor and immunostimulating properties. Many, if not all, Basidiomycetes mushrooms contain biologically active polysaccharides in fruit bodies, cultured mycelium, culture broth. Data on mushroom polysaccharides have been collected from 651 species and 7 infraspecific taxa from 182 genera of higher Hetero- and Homobasidiomycetes. These polysaccharides are of different chemical composition, with most belonging to the group of β-glucans; these have β-(1→3) linkages in the main chain of the glucan and additional β-(1→6) branch points that are needed for their antitumor action. High molecular weight glucans appear to be more effective than those of low molecular weight. Chemical modification is often carried out to improve the antitumor activity of polysaccharides and their clinical qualities (mostly water solubility). The main procedures used for chemical improvement are: Smith degradation (oxydo-reducto-hydrolysis), formolysis, and carboxymethylation. Most of the clinical evidence for antitumor activity comes from the commercial polysaccharides lentinan, PSK (krestin), and schizophyllan, but polysaccharides of some other promising medicinal mushroom species also show good results. Their activity is especially beneficial in clinics when used in conjunction with chemotherapy. Mushroom polysaccharides prevent oncogenesis, show direct antitumor activity against various allogeneic and syngeneic tumors, and prevent tumor metastasis. Polysaccharides from mushrooms do not attack cancer cells directly, but produce their antitumor effects by activating different immune responses in the host. The antitumor action of polysaccharides requires an intact T-cell component; their activity is mediated through a thymus-dependent immune mechanism. Practical application is dependent not only on biological properties, but also on biotechnological availability. The present review analyzes the pecularities of polysaccharides derived from fruiting bodies and cultured mycelium (the two main methods of biotechnological production today) in selected examples of medicinal mushrooms.
1,962 citations
TL;DR: This review describes pharmacologically active compounds from mushrooms with antimicrobial, antiviral, antitumor, antiallergic, immunomodulating, anti-inflammatory, antiatherogenic, hypoglycemic, hepatoprotective and central activities.
Abstract: This review describes pharmacologically active compounds from mushrooms. Compounds and complex substances with antimicrobial, antiviral, antitumor, antiallergic, immunomodulating, anti-inflammatory, antiatherogenic, hypoglycemic, hepatoprotective and central activities are covered, focusing on the review of recent literature. The production of mushrooms or mushroom compounds is discussed briefly.
944 citations
TL;DR: A water-soluble protein-bound polysaccharide was extracted from the fruiting bodies of Ganoderma atrum and isolated by gel-filtration chromatography as mentioned in this paper.
523 citations