نتایج جستجو برای: flavonoid glycosides

تعداد نتایج: 19570  

Journal: :Molecules 2012
Shuping Wang Lei Liu Lingling Wang Yaohua Hu Weidong Zhang Runhui Liu

In the present study a universally applicable HPLC-DAD/ESI-MS/MS method was developed for carrying out the comprehensive characterization of Jitai tablets (JTT). Based on the ESI-MS(n) fragmentation patterns of the reference standards, a total of 101 components were identified or tentatively characterized by comparing their retention times, UV and MS spectra with those of reference standards or...

2015
Kousuke Sagawa Ryota Tsuchihashi Kiyoshi Yoshida Daisuke Nakano Masafumi Okawa Toshihiro Nohara

Kudzu (Pueraria lobata) is widely considered a weed in the USA. However, the roots and flowers of kudzu are commercially available as crude Oriental medicines. Since the leaves of kudzu contain similar phytochemicals, kudzu leaves seem to be a promising health food or herbal supplement. Therefore, we investigated the variation in amounts of phytochemicals in kudzu leaves during growth using a h...

2017
Yahui Han Keyi Huang Yajun Liu Tianming Jiao Guoliang Ma Yumei Qian Peiqiang Wang Xinlong Dai Liping Gao Tao Xia

Flavonoids are major secondary metabolites in Camellia sinensis. Flavanone-3-hydroxylase (F3H) is a key enzyme in flavonoid biosynthesis in plants. However, its role in the flavonoid metabolism in C. sinensis has not been well studied. In this study, we cloned two F3Hs from C. sinensis, named CsF3Ha and CsF3Hb, where CsF3Ha containing 1107 bases encoded 368 amino acids, and CsF3Hb containing 10...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
ar gohari medicinal plants research center, faculty of pharmacy, tehran university of medical sciences s saeidnia medicinal plants research center, tehran university of medical sciences, p.o.box: 14155-6451, tehran, iran tel & fax: +98 – 21 - 64122330 m malmir medicinal plants research center, faculty of pharmacy, tehran university of medical sciences m yazdanpanah medicinal plants research center, faculty of pharmacy, tehran university of medical sciences y ajani department of pharmacognosy, institute of medicinal plants, acecr

background: the genus lomatopodium fisch. & c.a.mey., belongs to apiaceae family and contains one herbaceous species growing wildly in iran. there are only a few papers about the chemical constituents of these plants. here, we focused on the isolation and identification of the main flavonoid glycosides and sterols from the aerial parts of l. staurophyllum, which has not been previously reported...

The aim of this study was to determine total flavonoids and individually flavanone glycosides as well as antioxidant capacity in peel of Satsuma mandarin(Citrus unshiu) on different rootstocks.  On other hand, the purpose of this study was to identify the rootstock that could produce the highest amount of flavonoids.Total flavonoids content was measured using aluminum chloride colorimetric meth...

Journal: :The New phytologist 2006
Chung-Jui Tsai Scott A Harding Timothy J Tschaplinski Richard L Lindroth Yinan Yuan

Salicin-based phenolic glycosides, hydroxycinnamate derivatives and flavonoid-derived condensed tannins comprise up to one-third of Populus leaf dry mass. Genes regulating the abundance and chemical diversity of these substances have not been comprehensively analysed in tree species exhibiting this metabolically demanding level of phenolic metabolism. Here, shikimate-phenylpropanoid pathway gen...

Journal: :Applied and environmental microbiology 2012
Jeong-A Yoon Bong-Gyu Kim Woo Ju Lee Yoongho Lim Youhoon Chong Joong-Hoon Ahn

Most flavonoids exist as sugar conjugates. Naturally occurring flavonoid sugar conjugates include glucose, galactose, glucuronide, rhamnose, xylose, and arabinose. These flavonoid glycosides have diverse physiological activities, depending on the type of sugar attached. To synthesize an unnatural flavonoid glycoside, Actinobacillus actinomycetemcomitans gene tll (encoding dTDP-6-deoxy-L-lyxo-4-...

2012
Wenjun Huang Wei Sun Haiyan Lv Gong Xiao Shaohua Zeng Ying Wang

Epimedium sagittatum (Sieb. et Zucc.) Maxim, a popular traditional Chinese medicinal plant, has been widely used for treating sexual dysfunction and osteoporosis in China. The main bioactive components in herba epimedii are prenylated flavonol glycosides, which are end products of a branch of the flavonoid biosynthetic pathway. The MYB transcription factors (TF) act as activators or repressors ...

Journal: :Plant & cell physiology 2007
Yukie Oguchi Sayaka Masada Toshiya Kondo Kazuyoshi Terasaka Hajime Mizukami

Catharanthus roseus cell suspension cultures converted exogenously added curcumin to a series of curcumin glucosides that possessed drastically enhanced water solubility. A cDNA clone encoding a glucosyltransferase responsible for glucosylation of curcumin to form curcumin 4'-O-glucoside was previously isolated, and in the present study a novel sugar-sugar glycosyltransferase, UDP-glucose:curcu...

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