Results 31 to 40 of about 48,229 (284)

Pretreatment of citrus by-products affects polyphenol recovery:a review [PDF]

open access: yes, 2018
A large amount of citrus waste is generated annually. This waste is of great economic worth, since it contains high levels of polyphenols, which have attracted scientific interest due to their potent antimicrobial and antiradical activities. Pretreatment
Bowyer, Michael C.   +7 more
core   +2 more sources

Research on flavonoid glycosides of tea flower in different tea plant cultivars

open access: yes浙江大学学报. 农业与生命科学版, 2019
Twelve different flavonoid glycosides were identified and quantified by ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) method from tea flower of five different tea plant cultivars (Meizhan, Shuigu, Huangyezao, Zhenghe Dabai ...
LI Jin   +4 more
doaj   +1 more source

Identification of a flavonoid C-glycosyltransferase from fern species Stenoloma chusanum and the application in synthesizing flavonoid C-glycosides in Escherichia coli

open access: yesMicrobial Cell Factories, 2022
Background Flavonoid C-glycosides have many beneficial effects and are widely used in food and medicine. However, plants contain a limited number of flavonoid C-glycosides, and it is challenging to create these substances chemically.
Rong Ni   +9 more
doaj   +1 more source

Anthocyanins inhibit tumor necrosis alpha-induced loss of Caco-2 cell barrier integrity [PDF]

open access: yes, 2017
An increased permeability of the intestinal barrier is proposed as a major event in the pathophysiology of conditions characterized by chronic gut inflammation.
Anderson, Maureen   +8 more
core   +1 more source

Pedicularis L. Genus. Systematics, botany, phytochemistry, chemotaxonomy, ethnopharmacology, and other [PDF]

open access: yes, 2019
In this review, the relevance of the plant species belonging to the Pedicularis L. genus has been considered from different points of view. Particular emphasis was given to phytochemistry and ethnopharmacology, since several classes of natural compounds ...
Bianco, Armandodoriano   +13 more
core   +1 more source

In Vitro and In Silico Analyses Explore the Role of Flavonoid Classes in the Antiviral Activity of Plant Extracts Against the Dengue Virus

open access: yesMolecules
This study examined the relationship between flavonoid content and the antiviral effects of plant extracts against the dengue virus (DENV). Fourteen extracts from medicinal plants cultivated in Colombia, which were prepared by ultrasonic-assisted solvent
Sindi A. Velandia   +5 more
doaj   +1 more source

Icariin Enhances the Enzymatic Activity of N‐acetylgalactosaminidase to Augment Akkermansia Abundance in Gut Microbiota for Improved PD‐1 Blockade Efficacy in Tumor Suppression

open access: yesAdvanced Science, EarlyView.
Icariin promoted the growth of Akk by enhancing the activity of N‐acetylgalactosaminidase (Amuc_0920), which enhanced mucin utilization and provided a favorable nutrient environment for bacterial growth. This icariin‐mediated enrichment of Akk further reshaped the tumor microenvironment and promoted CD8+ T cell infiltration, ultimately synergizing with
Shuangying Qiao   +12 more
wiley   +1 more source

Rapid Analysis of the Main Components of the Total Glycosides of by UPLC/Q-TOF-MS

open access: yesNatural Product Communications, 2010
A rapid method for the analysis of the main components of the total glycosides of Ranunculus japonicus (TGOR) was developed using ultra-performance liquid chromatography with quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS).
Wen Rui   +4 more
doaj   +1 more source

Antiviral and antioxidant activity of a hydroalcoholic extract from Humulus lupulus L. [PDF]

open access: yes, 2018
A hydroalcoholic extract from female inflorescences of Humulus lupulus L. (HOP extract) was evaluated for its anti-influenza activity. The ability of the extract to interfere with different phases of viral replication was assessed, as well as its effect ...
Carissimi, Stefania   +12 more
core   +1 more source

Preparation, Component Identification, and Antioxidant Activity of Anthocyanins From Punica granatum “Tunisia”

open access: yesAgriFood: Journal of Agricultural Products for Food, EarlyView.
The preparation for Tunisian pomegranate anthocyanin extract. The molecular mechanisms underlying the antioxidant effects of these compounds were investigated using network pharmacology and molecular docking. Antioxidant activity was evaluated through DPPH, ABTS, and FRAP assays, whereas the effects on oxidative stress and inflammation were examined in
Jing Zhang   +6 more
wiley   +1 more source

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