Results 61 to 70 of about 4,734 (223)

Enriquecimento de compostos fenólicos de folhas de Inga edulis por extração em fase sólida: quantificação de seus compostos majoritários e avaliação da capacidade antioxidante Purification of phenolic compounds from Inga edulis leaves using solid-phase extraction: major compounds quantification and antioxidant capacity evaluation

open access: yesQuímica Nova, 2010
A phenolic fraction was obtained from of the acetone-water-acetic acid extract of Inga edulis leaves, by liquid-liquid partition and SPE-C18 cartridges.
Aécio Luís de Sousa Dias   +2 more
doaj   +1 more source

Proteins Identified from Saliva and Salivary Glands of the Chinese Gall Aphid Schlechtendalia chinensis [PDF]

open access: yes, 2018
Aphid saliva plays an essential role in the interaction between aphids and their host plants. Several aphid salivary proteins have been identified but none from galling aphids.
chen, Xiaoming   +6 more
core   +1 more source

Interrelation of Different Lipid Sources and Tannins on the Performance and Egg Quality of Japanese Quails

open access: yesEuropean Journal of Lipid Science and Technology, Volume 128, Issue 4, April 2026.
Dietary fats can influence egg production and egg nutritional quality in quails. In this study, different lipid sources were evaluated in combination with hydrolyzable tannins in diets for Japanese quails. The results showed that specific fat sources can improve production performance and modify the fatty acid composition and antioxidant capacity of ...
João Ricardo Rodrigues Ferreira Vieira   +10 more
wiley   +1 more source

Qualitative composition of phenolic compounds in leaves of Rhodiola rosea L. plants introduced in the conditions of the Moscow region

open access: yesОвощи России
Relevance. Rhodiola rosea L. is a perennial herbaceous plant from the Crassulaceae family. The roots and rhizomes of R. rosea contain a range of biologically active compounds. This species is included in the State Pharmacopoeia of the Russian Federation.
T. A. Krol, V. I. Ossipov, D. N. Baleev
doaj   +1 more source

Mapping the Primary and Secondary Metabolomes of Carob (Ceratonia siliqua L.) Fruit and Its Postharvest Antioxidant Potential at Critical Stages of Ripening

open access: yesAntioxidants, 2021
Six critical stages corresponding to major morphophysiological events in carob fruit ripening were defined, and changes in the primary and secondary metabolome and in vitro antioxidant capacity were examined in two genotypes collected at low (15 m) and ...
Marios C. Kyriacou   +4 more
doaj   +1 more source

Natural Remedies for Gut Health: The Role of Plant Extracts in Combating Inflammatory Bowel Disease and Colon Cancer

open access: yesFood Science &Nutrition, Volume 14, Issue 4, April 2026.
Created in BioRender. Haralambie, O. (2025) https://BioRender.com/dh5ly89. ABSTRACT Digestive disorders such as inflammatory bowel disease (IBD) and colorectal cancer are among the most significant global health challenges, largely driven by chronic inflammation and oxidative stress.
Oana‐Roxana Haralambie, Sanda Andrei
wiley   +1 more source

Spectrophotometric Determination of Gallotannins in Beer

open access: yesJournal of AOAC INTERNATIONAL, 1973
Abstract A method for the determination of traces of gallotannins in beer, in the presence of other natural tannins, has been developed. The procedure is based on the formation of a deep blue iron-tannin complex which is evaluated spectrophotometrically at 530 nm.
Howard W Ziegler   +2 more
openaire   +1 more source

Beware the Artifact: Generation of Ellagic Acid and Related Species During Atmospheric Solid Analysis Probe (ASAP) Measurements of Iron Gall Inks and Tannins in the Negative Ionization Mode

open access: yesJournal of Mass Spectrometry, Volume 61, Issue 4, April 2026.
ABSTRACT A detailed comparative analysis of the results of atmospheric solid analysis probe (ASAP) mass spectrometry of inks, tannins, and gallic acid (GA) in the negative ionization mode was performed. Results obtained for tannin by ASAP have been compared with those obtained with electrospray ionization (ESI).
Thomas Willms
wiley   +1 more source

Structure and Oligomers Distribution of Commercial Tara (Caesalpina spinosa) Hydrolysable Tannin [PDF]

open access: yes, 2013
Solvent extracted commercial Tara tanninextract have been examined by Matrix Assisted LaserDesorption/Ionisation Time-of-Flight (MALDI-TOF)mass spectrometry and by High Pressure LiquidChromatography (HPLC).
Antonio PIZZI   +3 more
core  

Spectrophotometric determination of phenolic compounds sum in plants using aluminum chloride, 18-molybdodiphosphate and Folin-Ciocalteu reagents [PDF]

open access: yes, 2015
На основании результатов анализа ряда лекарственных препаратов на основе растительного сырья (таблетки, настойки, сиропы), лекарственных растений, фруктов, чаев и т.п.
Denisenko, T. A.   +5 more
core   +1 more source

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