Topic
Polygonum
About: Polygonum is a research topic. Over the lifetime, 1230 publications have been published within this topic receiving 12765 citations.
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Journal Article•
TL;DR: Study on the antioxidant systems of Polygonum viviparum grown at two different altitudes indicated plants grown at Haibei Research Station at 3200 m altitude as compared with plants grown in Xining at 2300 m altitude had apparently higher contents of ultroviolet-absorbing compounds and ascorbic acid, and significantly higher activities of superoxide dismutase, peroxidase and asCorbic peroxids.
Abstract: Study on the antioxidant systems of Polygonum viviparumgrown at two different altitudes indicated plants grown at Haibei Research Station at 3200 m altitude as compared with plants grown in Xining at 2300 m altitude had apparently higher contents of ultroviolet-absorbing compounds and ascorbic acid, and significantly higher activities of superoxide dismutase, peroxidase and ascorbic peroxidase Higher contents of superoxide radical anions and malonadehyde were also found in plants at Haibei Research Station as compared with the plants grown in Xining which have been transplanted from Haibei Research Station for at least four years The differences in antioxidant system reflect a long term of time of adaptation to different environments
1 citations
Journal Article•
TL;DR: In this article, the antioxidative activity of polysaccharide in polygonum cillinerve(Nakai) ohwi was investigated and the scavenging rate to O2-and superoxide anion(O2-) was investigated.
Abstract: [Objective]The study was done to investigate the antioxidative activity of polysaccharide in Polygonum cillinerve(Nakai) ohwi.[Methods]The hydroxyl radicals(·OH) and superoxide anion(O2-) were produced by Fenton reaction and pyrogallolautoxidation system respectively.Sodium nitrite and nitrosamine were synthesized in simulated human gastric juice.Reactive oxygen species and nitrosamines were tested by UV spectrophotometer.[Results]The scavenging rate to O2-and ·OH were 63% and 48% when concentration of Polygonum cillinerve(Nakai) ohwi polysaccharide was 5 mg/ml,at which the blocking rate of nitrosamine was 41.27%.The scavenging rate to nitrite was 67.03% with Polysaccharide concentration of 0.09 mg/ml.[Conclusion]Polygonum cillinerve(Nakai) ohwi polysaccharide is endowed with a strong anti-oxidation.
1 citations
Patent•
06 May 2015
TL;DR: The Polygonum multiflorum flower health-care tea comprises the following components in percentage by weight: 20%-40% of polygonum multilum flowers, 5%-20% of fructus gardeniae flowers, 3%-15% of wild chrysanthemums and 3%- 15% of xylitol as mentioned in this paper.
Abstract: The invention relates to the field of tea beverages, in particular to a Polygonum multiflorum flower health-care tea. The Polygonum multiflorum flower health-care tea comprises the following components in percentage by weight: 20%-40% of Polygonum multiflorum flowers, 5%-20% of fructus gardeniae flowers, 3%-15% of wild chrysanthemums and 3%-15% of xylitol. When the raw materials are mixed together, the raw materials can complement and promote each other, so that the efficacies are more prominent. The health-care tea has the efficacies of removing toxicity, eliminating carbuncles, loosening bowel to relieve constipation, promoting blood circulation for removing blood stasis and regulating the meridians, expelling blood stasis, relieving pain, stimulating the menstrual flow, cooling and nourishing blood, removing heat from the lung to relieve cough, cooling blood for hemostasis, removing food stagnation and removing stagnation and stasis, and can have a good prevention effect on diabetes and hyperlipemia of middle-aged and old people.
1 citations
Journal Article•
TL;DR: Three newly recorded genera and seven newly recorded species from Hainan Island are reported.
Abstract: Three newly recorded genera and seven newly recorded species from Hainan Island are reported.The new genera from Hainan are Veronica,Microcarpaea,Oenothera;and the newly recorded species: Veronica undulata Wallich ex Jack,Microcarpaea minima(J.Koenig ex Retzius)Merrill,Erechthites hieracifolia(L.)Raf.ex DC.,Oenothera drummondii Hook.,Rorippa cantoniensis(Lour.)Ohwi,Polygonum lapathifolium Linn.var.lanatum(Roxb.)Steward,Vitex negundo L.var.cannabifolia(Siebold et Zucc.) Hand.-Mazz.
1 citations