Results 41 to 50 of about 46,515 (282)

Extraction, purification and biological activity of total triterpenes from Sanghuangporus sanghuang

Guangxi Zhiwu
In order to optimize the extraction process of total triterpenes from Sanghuangporus sanghuang, to purify total triterpenes, and to analyze its chemical components, as well as its antitumor and antioxidant activities. The response surface method was used
LIU Kun1,2, FU Xinyao1, GUO Tong1, ZHANG Wanyue1, ZHAO Qingsheng3, KONG Zejuan4, CHENG Hua4*, SONG Heng5
doaj   +1 more source

Why do Euphorbiaceae tick as medicinal plants? : a review of Euphorbiaceae family and its medicinal features [PDF]

, 2011
Euphorbiaceae is among the large flowering plant families consisting of a wide variety of vegetative forms some of which are plants of great importance. Its classification and chemistry have of late been subjects of interest possibly because of the wide ...
Mwine, Tedson Julius, Van Damme, Patrick
core  

A conserved amino acid residue critical for product and substrate specificity in plant triterpene synthases [PDF]

, 2016
Triterpenes are structurally complex plant natural products with numerous medicinal applications. They are synthesized through an origami-like process that involves cyclization of the linear 30 carbon precursor 2,3-oxidosqualene into different triterpene
Al-Qurainy, Andrew M. Hemmings, Anne Osbourn, Kushiro, Melissa Salmon, Paul E. O’Maille, Rachel E. Melton, Racolta, Ramesha B. Thimmappa, Richard K. Hughes, Robert E. Minto, Wiederstein, Wu   +12 more
core   +1 more source

Steroidal Triterpenes of Cholesterol Synthesis [PDF]

Molecules, 2013
Cholesterol synthesis is a ubiquitous and housekeeping metabolic pathway that leads to cholesterol, an essential structural component of mammalian cell membranes, required for proper membrane permeability and fluidity. The last part of the pathway involves steroidal triterpenes with cholestane ring structures.
Ačimovič, Jure, Rozman, Damjana
openaire   +4 more sources

Unraveling the Impact of Six Pentacyclic Triterpenes Regulating Metabolic Pathways on Lung Carcinoma Cells

Pharmaceuticals
Recently, there has been great interest in plant-derived compounds known as phytochemicals. The pentacyclic oleanane-, ursane-, and lupane-type triterpenes are phytochemicals that exert significant activity against diseases like cancer.
Anamaris Torres-Sanchez, Grace Torres, Sthephanie Estrada, Daraishka Perez, Carlos Garcia, Melissa Milian, Eddian Velazquez, Valerie Molina, Yamixa Delgado   +8 more
doaj   +1 more source

Endosperm sterol phenotype and germination in wheat [PDF]

, 1976
Free and conjugated sterols of endosperm, coats, scutellum, coleoptile and roots have been analysed at different germination stages in two wheat cultivars with different endosperm sterol phenotypes.
Carbonero Zalduegui, Pilar, García Olmedo, Francisco, Torres, V.   +2 more
core   +2 more sources

Triterpenes of Centaurea ptosimopappoides

Phytochemistry, 1997
The roots of Centaurea ptosimopappoides afforded two new triterpenes; a new hopane derivative, 17β,21β-epoxy-16α-ethoxyhopan-3β-ol and a new baccharane type triterpene, 3β-acetoxy-17,24-dioxobaccharane. The known compounds, 17β,21β-epoxyhopan-3β-ol, 3β-acetoxyhop-17(21)-ene and 3β-acetoxy-erythrodiol were also isolated.
Oksuz, S, Serin, S
openaire   +2 more sources

Contribution of Free Fatty Acids to Emulsion Building and Stability: Understanding the Mechanism From the Case Study of a Crude Red Palm Oil (Elaeis guineensis)—Based Emulsion Consumed in Africa and Known as Achu Soup/Sauce Jaune/Ncha

Food Chemistry International, EarlyView.
In an aqueous alkaline medium, fatty acids (from the hydrolysis of triglycerides or freely present in the oil) are ionised in order to form emulsifiers (carboxylates) which will physically stabilise the prepared emulsion. The higher the free fatty acids content of the oil and alkalinity of the solution, the higher will be the stability of the prepared ...
Ngoualem Kégah Franklin, Nguimbou Richard Marcel, Ndjouenkeu Robert, Asad Muhammad Khan   +3 more
wiley   +1 more source

Distribution of miliacin (olean-18-en-3β-ol methyl ether) and related compounds in broomcorn millet (Panicum miliaceum) and other reputed sources: Implications for the use of sedimentary miliacin as a tracer of millet [PDF]

, 2013
International audienceUsing sedimentary miliacin (olean-18-en-3β-ol methyl ether) as a molecular tracer of the history of Panicum miliaceum (broomcorn millet) cultivation depends upon broomcorn millet being sedimentary miliacin's dominant source. It also
Bossard, Nicolas, Jacob, Jérémy, Lallier-Vergès, Elisabeth, Le Milbeau, Claude, Poissonnier, Bertrand, Sauze, Joana, Terwilliger, Valery T.   +6 more
core   +3 more sources

Fluorescent light and sunlight radiations may improve rice bran oil colour and influence its oxidative stability and chemical composition

Food Biomacromolecules, EarlyView.
Abstract The influence of pretreatment of rice bran oil using fluorescent and sunlight radiations on its colour and their influence on its chemical composition and oxidative stability were assessed. Rice bran oil was stored under sunlight, fluorescent light and ambient conditions for 60 days. Oil samples were collected every 15 days for analysis.
Sab Sharon Mbape, Fabrice Tonfack Djikeng, Mallampalli Sri Lakshmi Karuna, Rachapudi Badari Narayana Prasad   +3 more
wiley   +1 more source