Results 1 to 10 of about 160,951 (204)

Comparative study of phenolic acids from underground parts of Rheum palmatum L., R. rhaponticum L. and R. undulatum L.

open access: yesActa Societatis Botanicorum Poloniae, 2011
In three species of Rheum L. genus growing in Poland the composition of phenolic acids was determined. By 2D-TLC method the following acids were identified: ellagic, chlorogenic, gallic, protocatechuic, homoprotocatechuic, caffeic, α-resorcilic, p ...
Helena Danuta Smolarz, Ewa Medyńska
doaj   +1 more source

Physiological mechanism of improved tolerance of Saccharomyces cerevisiae to lignin-derived phenolic acids in lignocellulosic ethanol fermentation by short-term adaptation

open access: yesBiotechnology for Biofuels, 2019
Background Phenolic acids are lignin-derived fermentation inhibitors formed during many pretreatment processes of lignocellulosic biomass. In this study, vanillic, p-hydroxybenzoic, and syringic acids were selected as the model compounds of phenolic ...
Hanqi Gu   +9 more
doaj   +1 more source

Effects of Organic Acids, Amino Acids and Phenolic Compounds on Antioxidant Characteristic of Zhenjiang Aromatic Vinegar

open access: yesMolecules, 2019
Zhenjiang aromatic vinegar (ZAV) is one of the famous Chinese vinegars, which contains various physicochemical and bioactive compositions. In the present study, physicochemical properties and total antioxidant activity were detected in ZAV samples.
Bo Zhang   +7 more
doaj   +1 more source

Content of phenolic acids in rye caryopses determined using DAD-HPLC method

open access: yesCzech Journal of Food Sciences, 2001
Phenolic compounds were extracted from rye caryopses with 80% (v/v) methanol. Phenolic acids were determined as free compounds and those liberated from soluble esters and glycosides.
R. Amarowicz, S. Weidner
doaj   +1 more source

Accumulation of Phenolic Acids during Storage over Differently Handled Fresh Carrots

open access: yesFoods, 2020
Carrots contain a significant content of phenolic compounds, mainly phenolic acids. Technological processing of carrots inflicts wounding stress and induces accumulation of these compounds, especially caffeic acid derivatives, in the periderm tissue.
Jarkko Hellström   +2 more
doaj   +1 more source

Evaluation of Phenolic Root Exudates as Stimulants of Saptrophic Fungi in the Rhizosphere

open access: yesFrontiers in Microbiology, 2021
The rhizosphere microbial community of crop plants in intensively managed arable soils is strongly dominated by bacteria, especially in the initial stages of plant development.
Anna Clocchiatti   +6 more
doaj   +1 more source

Improvement of the Oxidative Stability of Rosehip, Hemp, and Passion Fruit Oils by the Addition of Monocyclic Phenols as Antioxidants

open access: yesAntioxidants
Caffeic, syringic, and protocatechuic acids are phenolic acids with important antioxidant activity. In this work we studied how the oxidative stability of rosehip, hemp, and passion fruit oils improves with the addition of these antioxidant acids.
Gloria Castellano   +5 more
doaj   +1 more source

Effect of accelerated ageing on the content and composition of polyphenolic complex of wheat (Triticum aestivum L.) grains

open access: yesPlant, Soil and Environment, 2003
The influence of accelerated ageing test (AAT), i.e. of higher temperature and humidity, on the content and composition of phenolic compounds in the grains of five cultivars of wheat (Triticum aestivum L.) was studied in the years 1998 and 1999.
J. Lachman   +3 more
doaj   +1 more source

Composition of Phenolic Acids and Antioxidant Properties of Selected Pulses Cooked with Different Heating Conditions

open access: yesFoods, 2020
Pulses are recommended for healthy eating due to their high content of nutrients and bioactive compounds that can undergo changes during cooking. This study investigated the effects of four cooking methods (boiling, pressure, microwave, slow) and three ...
Yihan Liu   +3 more
doaj   +1 more source

Phenolic acid profiles of endemic species Verbascum anisophyllum and Verbascum davidoffii

open access: yesJournal of BioScience and Biotechnology, 2017
The profiles of methanol extractable and methanol insoluble bound phenolic acids of two species: Verbascum anisophyllum Murb (Balkan endemic) and Verbascum davidoffii Murb. (Bulgarian endemic) were determined.
Milena Nikolova   +5 more
doaj  

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