نتایج جستجو برای: antioxidants analysis

تعداد نتایج: 2844698  

2016
A. T. Dzhalilov

A study was made of the synthesis of oligomeric derivatives of gossypol with epichlorohydrin and allyl halides. The structure of the oligomeric derivatives of gossypol was confirmed by IR spectroscopic and elemental analysis. The antioxidative capacity of the oligomeric derivatives of gossypol in the inhibition of low-density polyethylene (LDPE) was investigated. Study of the antioxidative prop...

Journal: :The American journal of clinical nutrition 2013
Yu-Hong Cui Chun-Xia Jing Hong-Wei Pan

BACKGROUND Observational studies have been inconsistent regarding the association between blood antioxidants or vitamins and risk of age-related cataract. OBJECTIVE We performed a meta-analysis to determine whether an association exists between blood levels of antioxidants or vitamins and age-related cataract in observational studies. DESIGN We searched PubMed, EMBASE, and the Web of Scienc...

Journal: :Journal of separation science 2005
Miguel Herrero Elena Ibáñiez Alejandro Cifuentes

In this work, an exhaustive survey of capillary electromigration methods used to analyze natural antioxidants is presented together with some discussion of the use of these substances use as functional foods. This review provides an updated and exhaustive overview of the separation and identification by capillary electrophoresis of natural compounds with antioxidant activity found in natural ma...

2017
Ying Zhou Jing Chen Zhen Wang Hui Liu

Objectives. To discuss the characteristics of the amount of urinary total antioxidants in tumor diseases and the possibility of utilizing the changing regulation of urinary antioxidants to diagnose tumor diseases. Method. Urine and serum specimens from 130 healthy people were used to investigate the variation of antioxidant capacity against age. Urine and serum specimens from 44 unselected pati...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2003
Nicola Lysek Ralf Kinscherf Ralf Claus Thomas Lindel

The intertidal sponge Hymeniacidon heliophila which survives under intense sunlight contains the antioxidant amino acid L-5-hydroxytryptophan (L-5-HTP) as major constituent. The content of L-5-HTP was determined as (0.45 +/- 0.23)% of the dry weight by quantitative NMR-spectroscopical analysis with an internal standard. Other known antioxidants such as flavonoids, carotenoids or tocopherol deri...

Journal: :The Journal of Nutrition 2004

Journal: :California Agriculture 2003

Journal: :European Heart Journal Supplements 2002

Journal: :Kvasny Prumysl 1996

Journal: :Antioxidants 2020

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