Results 101 to 110 of about 3,973 (221)

Chemistry and analytical techniques for ent-kaurene-glycosides of Stevia rebaudiana Bertoni - A review [PDF]

open access: yes, 2017
The Stevia genus encompasses about 200 herbs and shrubs species. Stevia rebaudiana, one of the members has gained commercial importance as a natural low calorie sweetener, due to the presence of high con-centration of stevioside and rebaudioside - A (25%
Kumar, Suresh, Kumari, Neena
core   +2 more sources

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

open access: yesMolecules, 2017
The inhibition of tumor-cell proliferationbyan organicsolvent extract from the solid-state fermentation of Phellinus baumii mycelia inoculated in rice medium was investigated in vitro.
Henan Zhang   +6 more
doaj   +1 more source

Novel colorimetric films based on starch/polyvinyl alcohol incorporated with roselle anthocyanins for fish freshness monitoring [PDF]

open access: yes, 2017
Novel colorimetric films were developed for real-time monitoring of fish freshness based on starch/polyvinyl alcohol (SPVA) incorporated with roselle (Hibiseus sabdariffa L.) anthocyanins (RACNs).
Holmes, M   +8 more
core   +1 more source

Effect of Solvent Extraction Parameters on the Recovery of Oil From Spent Coffee Grounds for Biofuel Production [PDF]

open access: yes, 2017
Spent coffee grounds (SCG) are a potentially valuable source of lipids for sustainable production of biofuels. However, there are several feedstock properties and solvent extraction parameters that can impact on the oil yield and quality, potentially ...
Efthymiopoulos, I   +4 more
core   +2 more sources

Separation of volatile metabolites from the leaf-derived essential oil of piper mollicomum kunth (piperaceae) by high-speed countercurrent chromatography [PDF]

open access: yes, 2018
A técnica de cromatografia em contracorrente de alta velocidade foi aplicada ao isolamento de compostos em óleo essencial derivado das folhas da espécie Piper mollicomum.
Kaplan, Maria Auxiliadora C.   +3 more
core   +1 more source

Fast preparative separation of flavones from capitula of Eriocaulon ligulatum (Vell.) L.B.Smith (Eriocaulaceae) by High-speed countercurrent chromatography (HSCCC)

open access: yesRevista de Ciências Farmacêuticas Básica e Aplicada, 2005
High-speed countercurrent chromatography (HSCCC) is a leading method for the fast separation of natural products from plants. It was used for the preparative isolation of two flavone monoglucosides present in the capitula of Eriocaulon ligulatum (Vell ...
L.C. Santos   +6 more
doaj  

Target-Guided Isolation of Three Main Antioxidants from Mahonia bealei (Fort.) Carr. Leaves Using HSCCC

open access: yesMolecules, 2019
Mahonia bealei (Fort.) Carr. is an economically important plant that is widely cultivated in Southwest China. Its leaves are commonly used for tea and contain an abundance of antioxidant compounds.
Weicheng Hu   +3 more
doaj   +1 more source

Solvent free synthesis of Dibenzyl Sulfide using H2S rich Monoethanolamine under two phase transfer catalysis [PDF]

open access: yes, 2012
With the depletion of crude oil reserves, oil refineries are being forced to process sour crude which is high in sulfur content. Sulfur, if not removed from the system may corrode the system or may lead to unwanted side reactions which would entail ...
Panda, Partha Pratim
core  

The Passiflora tripartita (Banana Passion) Fruit: A Source of Bioactive Flavonoid C-Glycosides Isolated by HSCCC and Characterized by HPLC–DAD–ESI/MS/MS

open access: yesMolecules, 2013
The banana passion fruit (Passiflora tripartita Breiter, Passifloraceae) known as “tumbo” is very appreciated in tropical and subtropical countries of South America. Methanolic extracts from peel and the fruit juice of P. tripartita growing in Chile were
Mario J. Simirgiotis   +3 more
doaj   +1 more source

Chemistry and Pharmacology of the Kazakh Crataegus Almaatensis Pojark: An Asian Herbal Medicine

open access: yesAntioxidants, 2019
Crataegus almaatensis, an endemic ornamental plant in Kazakhstan is used in popular medicine due to its cardiotonic properties. The most studied species of the same genus are commonly found in Europe, which shows the importance of having the Kazakh ...
Sabrina S. Soares   +9 more
doaj   +1 more source

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