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: The hairy roots of Polygonum multiflorum were able to convert the aromatic exogenous substrate, thymol, into its glycoside, and the time course indicated the relationship between DMP and co-cultivated period.
Abstract: OBJECTIVE The exogenous substrate, thymol, was firstly biotransformed by using suspension hairy roots of transgenic Polygonum multflorum, and its biotransformed situation was also investigated METHODS After five days co-cultivated period, the transformed product was isolated by Thin Layer Chromatograph and Column Chromatograph, with the structure elucidated by physic-chemical methods and spectra data Meanwhile, the time course of biotransformation (T-C) for thymol was also measured by HPLC to illuminate its bio-transformed situation RESULTS The glycosylated product, namely DMP, was isolated and purified, which structure was determined as 5-methyl-2-(1-methylethyl) phenyl- beta-D-glucopyranoside And the distribution of DMP in the medium or culture was varied in different co-cultivated periods, and for five days co-cultivated period, it mainly existed in the medium CONCLUSION The hairy roots of Polygonum multiflorum were able to convert the aromatic exogenous substrate, thymol, into its glycoside Furthermore, the time course indicated the relationship between DMP and co-cultivated period
6 citations
Patent•
27 Jun 1983
TL;DR: In this article, a stilbene compound extracted from a specific polygonum plant and effective to promote the hepatic function was provided to provide the titled food containing a stildene compound.
Abstract: PURPOSE: To provide the titled food containing a stilbene compound extracted from a specific polygonum plant and effective to promote the hepatic function. CONSTITUTION: The rhizome, root, etc. of a Polygonum plant selected from ITADORI (Polygonum cuspidatum), TSURUMI-DOKUDAMI (Polygonum multiflorum), OOKETADE (Polygonum orientale) and MIZUHIKI (Polygonum filiforme) is dried, pulverized, and extracted with acetone-methanol. The obtained soluble fraction is extracted with ethyl ether, and the fraction hardly soluble in ethyl ether is purified by silica gel column chromatography, and recrystallized with ethanol to obtain the stilbene compound of formula composed of resveratrol (R 1 and R 2 are H), biseide (R 1 is D-glucose; R 2 is H) and 2,3,5,4'-tetrahydroxystilbene-2-O-D-glucoside (R 1 is H; R 2 is O-D-glucose). The stilbene compound is formed to an arbitrary food to enable the administration of 100W800mg of the compound daily. COPYRIGHT: (C)1985,JPO&Japio
6 citations
TL;DR: The results illustrate that knotweed removal can be highly effective in initiating riparian understory recovery and speaks to the importance of understanding the ways in which species' traits can influence management outcomes.
Abstract: Removal of invasive plants to restore native community structure and function is an important component of riparian management in the Pacific Northwest, USA. However, little is known about the role of habitat factors and species' traits in mediating recovery of native riparian systems following removal of invasives. We experimentally investigated the response of riparian understories to removal of Bohemian knotweed (Polygonum x bohemicum). We measured abundance, diversity, and composition of herbaceous and woody species before and for two years after removal. Knotweed removal resulted in rapid and abundant colonization of native woody species and of native and non-native forbs. Variation in the responses of these groups was most commonly associated with two habitat factors, height above channel and depth of knotweed litter. Knotweed litter benefited native forbs (predominantly forest perennials) relative to non-native forbs (predominantly light-demanding annuals). Natives, which are adapted to na...
6 citations
Patent•
26 Mar 2014
TL;DR: In this paper, a preparation method of polygonum multiflorum black tea is described, which includes the following steps: picking polygonal multifloralum stem leaves to dry and air until the leaves are soft; withering and twisting until juice seeps from the stem leaves, wherein the leaves were soft and adhesive, and cannot be broken; frying the stems leaves in a tea frying machine at 60-70 DEC G for 20-30 min, taking out the stems when the juice is dried, and twisting the stems for forming; performing natural fermentation, at the
Abstract: The invention discloses a preparation method of polygonum multiflorum black tea. The preparation method comprises the following steps: picking polygonum multiflorum stem leaves to dry and air until the leaves are soft; withering and twisting until juice seeps from the stem leaves, wherein the leaves are soft and adhesive, and cannot be broken; frying the stem leaves in a tea frying machine at 60-70 DEC G for 20-30 min, taking out the stem leaves when the juice is dried, and twisting the stem leaves for forming, after which the polygonum multiflorum gradually turns yellow; performing natural fermentation, at the humidity of 60-80% for 4-10 hours, wherein the completion sign of the fermentation is that the stem leaves turn from yellow to red; baking: uniformly placing the fermented stem leaves into a baking machine with the initial baking temperature at 90 DEG C, increasing the temperature to 120 DEG C after 1 hour, continuously baking for 3 hours until the tea is puce, opening the baking machine, smelling the tea, and if the tea still has the smell of herbs, continuing to bake until the smell is gone. The polygonum multiflorum black tea has a health-care effect, is low in cost, has a mellow taste, and is intact in appearance.
6 citations
01 Jan 1925
TL;DR: The material was collected on my botanical trip to Mt. Tateyama in July 1924, from the wild plants growing in front of the "Murodo," and proved to have good staining power with this stain.
Abstract: The material was collected on my botanical trip to Mt. Tateyama in July 1924, from the wild plants growing in front of the "Murodo." Of various fixing fluids I have prefered FARMER'S solution to other's as it is not poisonous and does not inflict damage on travelling articles. Material was put into this fixative as soon as collected, and left in it for about a month.* Then it was washed repeatedly in 9O% alcohol until no trace of acetic acid remained. The further procedure was as usual, The sections were cut 14 micra thick and stained with HEIDENHAIN'S iron-alum haematoxylin for about 48 hours. The material fixed in FARMER'S fluid proved to have good staining power with this stain.
6 citations