Results 71 to 80 of about 5,919,756 (285)

Discrimination and classification of tobacco wastes by identification and quantification of polyphenols with LC–MS/MS [PDF]

open access: yes, 2010
The chemical composition of polyphenols in tobacco waste was identified by HPLC-PDA–ESI/MS/MS and the contents of chlorogenic acids and rutin in 10 varieties of tobacco wastes were determined by HPLC–UV.
BEN JIANG   +7 more
core   +1 more source

Harnessing Free Radical Scavenging Potential of Caffeic Acid as a Nutraceutical—A Review

open access: yesFood Safety and Health, EarlyView.
Caffeic acid has emerged as a promising bioactive molecule with multiple pharmacological properties, including antioxidant, antimicrobial, anti‐inflammatory, organ protective properties and metal‐chelating ability. This review emphasizes the dietary sources, structural characteristic, molecular mechanism underlying health promoting effects of caffeic ...
Pavitra Behra   +2 more
wiley   +1 more source

Semi-Preparative Separation of 10 Caffeoylquinic Acid Derivatives Using High Speed Counter-Current Chromatogaphy Combined with Semi-Preparative HPLC from the Roots of Burdock (Arctium lappa L.)

open access: yesMolecules, 2018
Burdock roots are healthy dietary supplements and a kind of famous traditional Chinese medicine, which contains large amounts of caffeoylquinic acid derivatives.
Zhenjia Zheng   +5 more
doaj   +1 more source

Phenolic Biotransformations in Wheatgrass Juice after Primary and Secondary Fermentation

open access: yesFoods, 2023
Fermented wheatgrass juice was prepared using a two-stage fermentation process by employing Saccharomyces cerevisiae and recombinant Pediococcus acidilactici BD16 (alaD+).
Baljinder Kaur   +4 more
doaj   +1 more source

Chlorogenic Compounds from Coffee Beans Exert Activity against Respiratory Viruses [PDF]

open access: yes, 2016
Chlorogenic acids are secondary metabolites in diverse plants. Some chlorogenic acids extracted from traditional medicinal plants are known for their healing properties, e.g., against viral infections.
Benedetti, Fabio   +8 more
core   +1 more source

Optimization of bioactive compounds extraction from Rosa canina L. pseudofruit through the action of two hydrolytic enzyme preparations

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKROUND The pseudo‐fruit of Rosa canina L. is a rich source of bioactive compounds with antioxidant, anti‐inflammatory, anti‐cancer, anti‐diabetic, anti‐aging, and antimicrobial activities. The aim of the present study is the optimization of a green process based on the action of two hydrolytic enzyme preparations, namely Pectinex® Ultra ...
Zafeiria Lemoni   +6 more
wiley   +1 more source

Using gamma irradiation to attenuate the effects caused by drying or freezing in Macrolepiota procera organic acids and phenolic compounds [PDF]

open access: yes, 2014
Macrolepiota procera (Scop.) Singer, commonly parasol mushroom, is an appreciated wild edible species. Due to its very perishable nature, M. procera must be processed to extend its shelf life. The chemical changes caused by common processing types should
Amilcar L. Antonio   +6 more
core   +1 more source

Indole‐Based π‐Extended Monophosphine Ligands for Enhanced Palladium‐Catalyzed Sonogashira Coupling

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
A general palladium‐catalyzed Sonogashira cross‐coupling of (hetero)aryl chlorides with aliphatic, (hetero)aryl alkynes is described using Pd(dba)₂/PCy2‐Napdole‐phos catalyst system. The reaction protocol exhibits broad substrate scope and the catalyst loading can be down to 0.2 mol% Pd.
Yu Kiu Lau   +9 more
wiley   +1 more source

Variability of characteristic components of aronia

open access: yesCzech Journal of Food Sciences, 2014
The variability of characteristic components of aronia (Aronia melanocarpa, black chokeberry) and to evaluate the chemical composition and quality of aronia products in order to complete the already available data and to facilitate authentication of ...
Jitka ŠNEBERGROVÁ   +5 more
doaj   +1 more source

Anti-mycobacterial assessment and characterization of 5-O-caffeoylquinic acid methyl ester and rutin from Pavetta crassipes [PDF]

open access: yes, 2016
Pavetta crassipes leaf (Fam. Rubiaceae) is used as part of a combination herbal remedy for the treatment of tuberculosis (TB) and other respiratory infections in Nigerian ethno medicine.
Haroune, Nicolas   +5 more
core   +1 more source

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