Results 51 to 60 of about 161,909 (300)

Natural Anthraquinone‐Like Compound Extracted from Green Husk of Walnut Improves Photocatalytic H2O2 Production Catalyzed by TiO2 Nanoparticles

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a novel biomolecule/semiconductor hybrid catalyst was prepared by loading anthraquinone‐liked juglone onto anatase TiO2. This catalyst exhibited high photocatalytic activity for H2O2 production. Hydrogen peroxide (H2O2) is a vital oxidant with broad industrial applications, and its production via photocatalysis represents a highly ...
Zengyin He   +4 more
wiley   +1 more source

New flavonoid glycoside from Vicia faba L.

open access: yesTrends in Phytochemical Research, 2020
Kaempferol 4´-O-α-rhamnopyranosyl-3-O-α-rhamnopyranosyl-(1→6)-β- glucopyranoside (1), a new flavonoid glycoside, along with eight known ones (2-9) were isolated from the flowers of Vicia faba L.
A.E. Allam
doaj  

Optimising the Eco‐Friendly Extraction of Carotenoids From Gac Fruit: A Sustainable Solution for Natural Red Food Colourants

open access: yesFood Chemistry International, EarlyView.
Gac fruit's high carotenoid content, especially in the aril, makes it an excellent natural red pigment source for food applications, offering a safer alternative to synthetic dyes. Ethanol extraction achieved the highest overall pigment recovery (89.53%), whereas ethyl lactate extraction yielded the highest levels of total carotenoids, β‐carotene ...
N. Netravati   +4 more
wiley   +1 more source

Enzyme promiscuity-driven co-production of flavonoid 7-O-glycosides in engineered Saccharomyces cerevisiae

open access: yesSynthetic and Systems Biotechnology
Flavonoid 7-O-glycosides are a key class of bioactive flavonoid derivatives with broad application prospects in functional foods and nutraceuticals. Currently, their production is mainly dependent on unsustainable plant extraction or inefficient chemical
Xinjia Tan   +11 more
doaj   +1 more source

New Flavonoid Glycosides from Vernonia ferruginea [PDF]

open access: yesNatural Product Communications, 2009
Four new flavonoid glycosides, quercetin 3-O-β-D-xylopyranosyl-(1-4)-β-D-glucopyranoside, quercetin 3-O-β-D-apiofuranosyl-(1-4)-β-D-glucopyranoside, kaempferol 3-O-β-D-apiofuranosyl-(1-4)-β-D-glucopyranoside, and kaempferol 4′-methyl ether 3-O-β-D-xylopyranoside, along with other known flavonoids and phenolic derivatives, were isolated from the leaves ...
MALAFRONTE N   +4 more
openaire   +5 more sources

Advances in Anthocyanin Recovery and Purification From Natural Sources: Bioavailability, Mechanistic Action in the Human Body and Applications in Novel Food Development

open access: yesFood Chemistry International, EarlyView.
This review highlights green recovery, purification, stabilisation, bioavailability, health relevance, and novel food applications of anthocyanins from natural and agro‐industrial sources. ABSTRACT Anthocyanins are water‐soluble natural pigments and multifunctional food ingredients that support clean‐label colour, antioxidant activity, and value‐added ...
Chandan Kumar Sahu   +4 more
wiley   +1 more source

Comparative Study of Flavonoid Profiles, Antioxidant, and Antiproliferative Activities in Hot-Air and Vacuum Drying of Different Parts of Pitaya (Hylocereus undatus Britt) Flowers

open access: yesAntioxidants
Pitaya flower, a medicinal and edible plant commonly used in tropical and subtropical regions, was the focus of this study, which compared the effects of hot-air drying (HAD) and vacuum drying (VD) on phytochemical profiles and biological activities of ...
Caifeng Shi   +3 more
doaj   +1 more source

Effect of soaking conditions in the reduction of antinutritional factors in sunnhemp (Crotalaria juncea) seeds

open access: yesFood Chemistry Advances, 2022
The study was conducted to optimize the effect of soaking conditions (soaking temperature and soaking time) on the antinutritional factors (total alkaloid content, total saponin content, total tannin content, total flavonoid content, total glycoside ...
Rashmi Rawat, Charanjiv Singh Saini
doaj   +1 more source

Nutraceutical Benefits of Anchomanes difformis Rhizome and Its Effects on Blood Glucose and Hepatorenal Function in Normoglycemic Rats

open access: yesFood Chemistry International, EarlyView.
Scientific analysis of Anchomanes difformis roots confirms significant nutraceutical potential, containing high levels of carbohydrates, proteins, and essential minerals. Phytochemical screening revealed antioxidants such as phenols and flavonoids, and although the extracts effectively lowered plasma glucose, safety testing showed dose‐dependent risks.
Lawrence Folorunso Dada   +2 more
wiley   +1 more source

Foliar iron application delays flavonoid degradation during the later grain-filling stage and regulates sugar metabolism in colored rice

open access: yesFrontiers in Plant Science
IntroductionColored rice is recognized for nutritious function due to its flavonoid compounds. Flavonoid aglycones are conjugated with various sugar moieties.
Xia Zhao   +8 more
doaj   +1 more source

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