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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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Patent
17 Apr 2013
TL;DR: In this article, a processing method of polygonum multiflorum tender tip tea is described, which is free of bitter taste or has a little bitter taste and can nourish blood and Yin, relax bowel and reduce insomnia and palpitation.
Abstract: The invention discloses a processing method of a polygonum multiflorum tender tip tea. The processing method comprises the following steps in sequence: picking polygonum multiflorum tender tips; washing through boiled water for 1 to 20 seconds; horizontally paving on a material which is relatively high in water permeability and has thickness of 1 to 3 centimeters such as bamboo parts or wooden parts; drying for 8 to 16 hours in the air; transferring into a pot; carrying out stir-frying, wherein alcohol with concentration of 95% is sprayed based on the ratio of 1000: (1-10), the firepower is changed from high to low, and the temperature is lowered from 150 to 40 DEG C; and stopping the stir-frying until the tea is completely dried. The polygonum multiflorum tender tip tea is free of bitter taste or has a little bitter taste, and the tea water is clear and delicious and can nourish blood and Yin, relax bowel and reduce insomnia and palpitation.

4 citations

Journal Article
TL;DR: Results showed that nine plants extracts of Polygonaceae have better inhibitory activity against the tested bacteria, especially P.capitatum and P.hydropiper L.var hispidum(Jook.F.) Steward.
Abstract: Objective:To evaluate the antimicrobial activity of nine plants of Polygonaceae in vitroMethod:Disc diffusion methods and porous plate methods were used to evaluate the inhibitory activity of different extracts of nine Polygonaceae plants against Staphylococcus aureus(SA),Methicillin-resistant Staphylococcus aureus(MRSA) and ESBLs-SAResult:The results indicated that methanol extract of Polygonum capitatum DDon and ethyl acetate extract of Pcapitatum at the concentration of 50 g·L-1 had a larger inhibiting diameter than that of other extracts of plants,among them MIC in the ethyl acetate extract of Pcapitatum against SA,MRSA and ESBLs-SA was 0062 5 g·L-1The ethyl acetate extract of Phydropiper Lvar hispidum(JookF) Stewardshowed the highest inhibitory effect(IC50 045 g·L-1) in porous plate methodsConclusion:Results showed that nine plants extracts of Polygonaceae have better inhibitory activity against the tested bacteria,especially Pcapitatum and Phydropiper Lvar hispidum(JookF) Stewardshowed more significant antimicrobial activity

4 citations

Journal ArticleDOI
06 Jul 2020
TL;DR: The results suggested that stem-derived extracts of Polygonum hydropiper L. are more active against bacterial species, including two Gram-positive and three Gram-negative strains, and the stem, rather than leaves, has a high antioxidant potential.
Abstract: Polygonum hydropiper L. is a traditionally used medicinal plant. The present study was designed to explore the α-amylase inhibitory, antioxidant, and antimicrobial activities of Polygonum hydropiper L. Polarity-based solvent extracts (n-hexane, acetone, chloroform, methanol, ethanol, and water) of Polygonum hydropiper leaves and stem were used. Antioxidant activity was assessed by free radical scavenging assay (FRAP) and 2,2-diphenylpicrylhydrazyl (DPPH) free radical scavenging activity methods. Quantitative phytochemical analyses suggested that the stem of Polygonum hydropiper L. contains higher levels of bioactive compounds than its leaves (p < 0.05). The results suggested that stem-derived extracts of Polygonum hydropiper L. are more active against bacterial species, including two Gram-positive and three Gram-negative strains. Moreover, our results showed that the bioactive compounds of Polygonum hydropiper L. significantly inhibit α-amylase activity. Finally, we reported the polarity-based solvent extracts of Polygonum hydropiper L. and revealed that the stem, rather than leaves, has a high antioxidant potential as measured by FRAP and DPPH assay with IC50 values of 1.38 and 1.59 mg/mL, respectively. It may also be deducted from the data that the Polygonum hydropiper L. could be a significant candidate, which should be subjected to further isolation and characterization, to be used as an antidiabetic, antimicrobial and antioxidant resource in many industries, like food, pharmaceuticals and cosmetics.

4 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202333
2022109
202114
202037
201937
201856