نتایج جستجو برای: 4 caffeoy1 quinic acid

تعداد نتایج: 1924359  

Journal: :Molecules 2015
Özlem Bahadır Acikara Jan Hošek Petr Babula Josef Cvačka Miloš Budešínský Martin Dračinský Gülçin Saltan İşcan Daniela Kadlecová Ludmila Ballová Karel Šmejkal

Scorzonera species are used in different folk medicines to combat many diseases, including the illnesses connected with inflammation. Previous experiments showed anti-inflammatory activity of Scorzonera extracts in vivo. S. latifolia, S. cana var. jacquiniana, S. tomentosa, S. mollis ssp. szowitsii, S. eriophora, S. incisa, S. cinerea, and S. parviflora extracts were, therefore, evaluated for t...

2012
Charles F. Forney Wilhelmina Kalt Michael A. Jordan Melinda R. Vinqvist-Tymchuk

Compositional changes that occur during fruit development affect both the organoleptic and nutritional quality of small fruit. Compositional changes in blueberry (Vaccinium corymbosum L) and cranberry (Vaccinium macrocarpon Aiton) fruit were determined at 3 maturities (white, turning and fully colored) during 2 seasons by analyzing sugar, acid, total phenolic, and total anthocyanin composition,...

Journal: :Molecules 2013
Mei Zhang Wan-Xue Liu Meng-Fei Zheng Qiao-Lin Xu Fang-Hao Wan Jing Wang Ting Lei Zhong-Yu Zhou Jian-Wen Tan

A novel quinic acid derivative, 5-O-trans-o-coumaroylquinic acid methyl ester (1), together with three known ones, chlorogenic acid methyl ester (2), macranthoin F (3) and macranthoin G (4), were isolated from the aerial parts of the invasive plant Ageratina adenophora (Spreng.). The structure of new compound 1 was elucidated on the basis of extensive spectroscopic analysis, including 1D- and 2...

Journal: :Planta medica 2011
Xianghui He Wenzhi Yang Min Ye Qing Wang Dean Guo

Cuscuta chinensis and Cuscuta australis, the two botanical sources of the Chinese herbal medicine Tu-Si-Zi, were distinguished from each other based on qualitative and quantitative chemical analysis. By HPLC‑DAD‑MS, a total of 36 compounds were characterized from these two Cuscuta species, including 14 flavonoids, 17 quinic acid derivatives, and 5 lignans. In addition, HPLC‑UV was applied to de...

2005
Malcom Gordon Francis A. Haskins Herschel Mitchell

The inhibitory influence of the toxin on the growth of Chlorella was completely reversible in the presence of l-methionine. A similar reversal has not yet been accomplished in tobacco. That the mechanism of action is similar in both organisms, however, is suggested by the fact that methionine sulfoximine, a known methionine antagonist, produced chlorotic lesions in tobacco leaves that were indi...

Journal: :Journal of Asian natural products research 2009
Yuan-Yuan Xie Dan Yuan Jing-Yu Yang Li-Hui Wang Chun-Fu Wu

A new p-hydroxyphenylacetyl flavonoid, diosmetin 7-(6''-O-p-hydroxyphenylacetyl)-O-beta-d-glucopyranoside (1), was isolated from the flowers of Chrysanthemum morifolium Ramat. 'huaiju' cv. nov. (Compositae), together with five known flavonoids, luteolin (2), diosmetin (3), diosmetin 7-O-beta-d-glucopyranoside (4), diosmin (5), and scolimoside (6), and four known caffeoylquinic acid derivatives,...

Journal: :Molecules 2012
Tzenge-Lien Shih Shu-Yu Yang

Efficient syntheses of four aminocyclitols are reported. Each synthesis is accomplished in eight steps starting from D-(-)-quinic acid. The key step involves a highly regioselective ring opening of epoxides by sodium azide.

2013
Ozlem Demirkiran M. Ahmad Mesaik Hayrettin Beynek Ahmed Abbaskhan Iqbal Choudhary

The MeOH extract of aerial parts of H. monbretii Spach. have yielded quercetin (1), kaempferol (2), quercitrin (3), hyperin (4), myricitrin (5), rutin (6), I 3 II 8′′ biapigenin (7), methyl chlorogenate (8), 5-O-pcoumaroylquinic acid (9), and chlorogenic acid (5-O-caffeoyl quinic acid) (10), mangiferin (11), and shikimic acid (12). Three compounds 1, 2 and 4 were found to have an immunomodulati...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1986
J A Baum N H Giles

DNase I hypersensitive regions were mapped within the 17.3-kilobase qa (quinic acid) gene cluster of Neurospora crassa. The 5'-flanking regions of the five qa structural genes and the two qa regulatory genes each contain DNase I hypersensitive sites under noninducing conditions and generally exhibit increases in DNase I cleavage upon induction of transcription with quinic acid. The two large in...

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