Results 81 to 90 of about 1,755 (191)

Impact of Sowing Dates and Nitrogen Levels on the Phenolic Profile, Antioxidant, and Enzyme Inhibitory Activities of Ricinus communis L. Roots

open access: yesJournal of Food Biochemistry, Volume 2026, Issue 1, 2026.
A wide range of biological effects, including antioxidant, antimicrobial, anti‐inflammatory, and antiproliferative activities, have been attributed to phenolic compounds, a group of bioactive molecules naturally occurring in plant tissues and increasingly valued for their industrial relevance. Notably, the present study demonstrates that sowing date is
Yunus Guzel   +4 more
wiley   +1 more source

Profiling and accurate quantification of trans-resveratrol, trans-piceid, trans-pterostilbene and 11 viniferins induced by Plasmopara viticola in partially resistant grapevine leaves [PDF]

open access: yes, 2011
Background and Aims: In the Vitaceae, stilbenoid viniferins constitute a relatively restricted group of molecules based on a trans-resveratrol structure and represent the main known phytoalexins.
D. MASUERO   +15 more
core   +1 more source

Improving Grape Seed Oil Yield Through Optimization of Ultrasound–Microwave Pretreatment and Screw Press Extraction Conditions

open access: yesJournal of Food Processing and Preservation, Volume 2026, Issue 1, 2026.
Grape seeds are a valuable agroindustrial by‐product, and optimizing oil extraction from them represents an effective approach for both waste valorization and production of high‐quality edible oil. This study investigated the influence of ultrasonic pretreatment duration (0–60 min), microwave exposure time (0–120 s), and screw press speed (11–57 rpm ...
Nazanin Zakeri Anarak   +7 more
wiley   +1 more source

Resveratrol Oligosaccharide Induces mRNA Expression for

open access: yesNatural Product Communications, 2018
Piceid (resveratrol 3- O -β-D-glucoside) was glycosylated by cyclodextrin glucanotransferase to give oligosaccharides of resveratrol. Resveratrol oligosaccharides induced mRNA expression of SIRT1–6.
Hiroki Hamada   +7 more
doaj   +1 more source

Exploration of The Bioactive Compound Potential of Red Seaweed Eucheuma sp. Extract as An Antioxidant Agent [PDF]

open access: yesBIO Web of Conferences
Rhodophyta is rich of bioactive compounds that exhibit significant potential as natural antioxidants. The potential underscores the need for further investigation of Eucheuma sp.
Fitria Hasna Aliifah   +7 more
doaj   +1 more source

Impact of Species, Growth Conditions, and Plant Processing on the Phytochemistry and Antimicrobial Activity of Agrimonia Extracts

open access: yesChemistry &Biodiversity, Volume 22, Issue 12, December 2025.
Agrimony is a medicinal herb known for its content of polyphenols and beneficial bioactivity, both of which can be strongly influenced by cultivation and processing. This study reveals that agrimony plant structures, species, and postharvest processing are the main drivers of observed variability in both phytochemical composition and antimicrobial ...
Anna Loučková   +7 more
wiley   +1 more source

Disease Occurrence in Transgenic Rice Plant Transformed with Silbene Synthase Gene and Evaluation of Possible Horizontal Gene Transfer to Plant Pathogens

open access: yesResearch in Plant Disease, 2014
Genetic engineering is being used to enhance disease resistance and nutritional value of crops including rice plant. Considering the fast-growing agricultural biotechnology and rapidly increasing global area of transgenic crops, the risk evaluation on ...
Sang-Mi Yu   +5 more
doaj   +1 more source

Cibrede bulunan piceid ve resveratrol konsantrasyonlarının Aspergillus oryzae fermantasyonunda değişimi [PDF]

open access: yes, 2013
Bu çalışmada ilk defa cibrede (Vitis vinifera) bulunan piceid ve resveratrol konsantrasyonlarının Aspergillus oryzae fermantasyonu ile değişimleri incelenmiştir. Fermantasyon ortamı olarak Boğazkere üzüm çeşitlerinden şarap üretiminde meydana gelen cibre
Tunçer, Emre
core  

Multi-year Quantitative Evaluation of Stilbenoids Levels Among Selected Muscadine Grape Cultivars

open access: yesMolecules, 2019
Stilbenoids such as t-piceid, t-resveratrol, ε-viniferins, and t-pterostilbene can differ significantly among grape cultivars and years due to variation in environmental conditions and subsequent stressors encountered during a year.
Devaiah M. Kambiranda   +4 more
doaj   +1 more source

Identification and characterization of stilbene derivatives in infected sorghum seedlings [PDF]

open access: yes, 2007
We have previously identified a pathogen-inducible stilbene synthase gene (SbSTS1) in sorghum. In vitro enzyme assays of recombinant SbSTS1 demonstrated that trans-resveratrol was a reaction product when p-coumaroylCoA was used as a substrate.
Yu, K, Lo, C
core   +1 more source

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