نتایج جستجو برای: phenolic

تعداد نتایج: 24076  

2012
Somprasong Khaopha Thanaset Senawong Sanun Jogloy Aran Patanothai

A successful peanut breeding to obtain genotypes with greater phenolic content requires information on type and content of phenolic compounds in parental peanut genotypes. The aim of this study was to investigate the total phenolic contents and phenolic acid profiles of 15 Valencia-type peanut genotypes both in peanut testae and testa-removed kernels (cotyledons and embryonic axes). Total pheno...

2013
Xiaoyun Yang Jeffrey Kirsch Yuanyuan Zhang Jeffrey Fergus Aleksandr Simonian

Dielectric interface would be formed on the electrode surface during the analysis or disposal of many phenolic compounds due to electro-polymerization. This could cause electrode passivation, also called electrode fouling, which is indicated by the continuously decaying current signal. This paper proposed a model based on the potential drop across the fouling layer, which is helpful for deep un...

2006
Marco S. Lucas Carla Amaral Ana Sampaio José A. Peres Albino A. Dias

This work looks for a better understanding of the biodegradation of xenobiotic azo dyes mediated by yeasts. During a screening program of phenolic acid assimilating capacities it was found that a non-conventional ascomycetous yeast isolate, identified as Candida oleophila, efficiently decolorizes agar plates supplemented with the commercial textile diazo dye Reactive Black 5. Aerobic batch cult...

Journal: :Free radical biology & medicine 2006
María-Isabel Covas Karina de la Torre Magí Farré-Albaladejo Jari Kaikkonen Montserrat Fitó Carmen López-Sabater María A Pujadas-Bastardes Jesus Joglar Tanja Weinbrenner Rosa M Lamuela-Raventós Rafael de la Torre

Olive oil phenolic compounds are potent antioxidants in vitro, but evidence for antioxidant action in vivo is controversial. We examined the role of the phenolic compounds from olive oil on postprandial oxidative stress and LDL antioxidant content. Oral fat loads of 40 mL of similar olive oils, but with high (366 mg/kg), moderate (164 mg/kg), and low (2.7 mg/kg) phenolic content, were administe...

2016
Dongyun Ma Yaoguang Li Jian Zhang Chenyang Wang Haixia Qin Huina Ding Yingxin Xie Tiancai Guo

Polyphenols in whole grain wheat have potential health benefits, but little is known about the expression patterns of phenolic acid biosynthesis genes and the accumulation of phenolic acid compounds in different-colored wheat grains. We found that purple wheat varieties had the highest total phenolic content (TPC) and antioxidant activity. Among phenolic acid compounds, bound ferulic acid, vani...

Journal: :Journal of natural products 2000
A Groweiss J H Cardellina M R Boyd

The organic extract of the plant Maclura tinctoria exhibited moderate anti-HIV activity. Seven prenylated phenolic derivatives were isolated from the active fractions and characterized by spectroanalytical methods. New compounds macluraxanthone B (1), macluraxanthone C (2), and dihydrocudraflavone B (8) were identified.

2015
Lidija Jakobek Andrew R. Barron

Several ancient apple varieties and a wild apple variety grown in Croatia were analysed for the polyphenol content and compared to two varieties grown in USA. In the flesh, flavanols, dihydrochalcones and phenolic acids (24 to 137, 23 to 109, 3 to 238 mg kg 1 of fresh weight (FW), respectively) were found. Peel contained flavanols, dihydrochalcones, phenolic acids, flavonols and anthocyanins (6...

2004
Tohru Mitsunaga Anthony H. Conner Charles G. Hill

Phenolic resins are important adhesives used by the forest products industry. The phenolic compounds in these resins are derived primarily from petrochemical sources. Alternate sources of phenolic compounds include tannins, lignins, biomass pyrolysis products, and coal gasification products. Because of variations in their chemical structures, the reactivities of these phenolic compounds with fo...

2014
Kehan Pei Juanying Ou Caihuan Huang Shiyi Ou

Ferulic acid is a natural compound that possesses multiple physiological and pharmaceutical functions. The chemical, physical, and pharmaceutical properties of this phenolic acid can be improved by derivatives with other active compounds. This sentence (Hence, such improvements can widen the applications of ferulic acid in the food, cosmetic, and pharmaceutical industries.) has been deleted. Th...

2015
Xia Yi Hanqi Gu Qiuqiang Gao Z. Lewis Liu Jie Bao

BACKGROUND Phenolic aldehydes generated from lignocellulose pretreatment exhibited severe toxic inhibitions on microbial growth and fermentation. Numerous tolerance studies against furfural, 5-hydroxymethyl-2-furaldehyde (HMF), acetate, and ethanol were reported, but studies on inhibition of phenolic aldehyde inhibitors are rare. For ethanologenic strains, Zymomonas mobilis ZM4 is high in ethan...

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