Search results with tag "Antioxidant activity"
Determination of Antioxidant Activity in Tea Extracts, and ...
www.nwpii.com2. Determination of Antioxidant Activity Antioxidant activity of green tea, as measured by different methods, is usually higher than the antioxidant activity of black tea or oolong tea [18, 22-25]. However, it was determined that the theaflavins in black tea and catechins in green tea are equally effective antioxidants [26, 27].
Use of a Free Radical Method to Evaluate Antioxidant Activity
radio.cuci.udg.mxLebensm.-Wiss. u.-Technol., 28.25-30 (1995) Use of a Free Radical Method to Evaluate Antioxidant Activity W. Brand-Williams, M. E. Cuvelier and C. Berset*
Phytochemical content and antioxidant properties …
www.ifrj.upm.edu.my1054 Moko et al./IFRJ 21(3): 1053-1059 phenolic compounds and exhibits higher antioxidant activity than white rice varieties (Fujita et al., 2010; Muntana and Prasong, 2010; Sompong et al., 2011). Previous research about antioxidant properties
Quantitative Determination of Vitamin C Concentration of ...
nanobioletters.comQuantitative Determination of Vitamin C Concentration of Common Edible Food Sources by Redox Titration ... It is an antioxidant that safeguards the cells from free radical damage. It is ... In addition to its antioxidant activity and biosynthetic functions, vitamin C plays a vital role in
抗氧化能力的体外测定方法研究进展 - 21luohu.com
www.21luohu.comProgress of Analytical Methods for Antioxidant Capacity in Vitro ... Due to high antioxidant activity，many foodstuffs and beverages such as fruits，vege－ ... reducing power，determination of total ...
PHYTOCHEMICAL SCREENING, TOTAL FLAVONOID AND …
www.ukm.my[12] and malaria [13]. Phenolics are the largest group of phytochemicals that account for most of the antioxidant activity in plants or plant products [14]. More than 4000 polyphenols (flavonoids, monophenols and poly phenols) are found in vascular plants. Phenolic
酸化防止剤力価評価を目的としたDPPHおよびABTSラジカ …
agriknowledge.affrc.go.jppolyphenols， vitamins， amino acids， and peptides， were determined by these methods. In both assays， a catechol and a pyrogallol moiety contributed to antioxidant activity. In addition， a 3-hydroxyl group in
Potential of Calamansi (Citrofortunella microcarpa) Fruit ...
www.ijfe.orgmanually. A study on Antimicrobial & Antioxidant Activity of Orange Pulp and Peel, with modification served as guide in oven drying [10]. The peels were oven dried for 15 minutes at 95 degrees centigrade until the peel became crispy for grinding (see Figures 2.a. and 2.b). It was grinded in an electric blender. It was macerated for three
Phytochemical Screening and Antioxidant Activity of ...
impactfactor.orgKitaz et al. / Phytochemical Screening and … IJPPR, Volume 8, Issue 12: December 2016 Page 2026
Phenolic compounds and antioxidant activity of …
ifrj.upm.edu.my1986 Monteiro et al.IFRJ 22(): 18-12 or as deactivators of pro-oxidant metals (Ghiretti et al., 1997). Pequi is the popular name of Caryocar brasiliense Camb. It belongs to the Caryocaceae family and it is
Total Phenolic, Total Flavonoid, Tannin Content, …
www.japsonline.com054 Rebaya et al. / Journal of Applied Pharmaceutical Science 5 (01); 2015: 052-057 A smaller IC50 value corresponds to a higher antioxidant activity. All test analyses were realized in triplicate.
Antioxidant Properties of the Methanol Extracts of …
acgpubs.orgAntioxidant activity of Celtis africana 26 2.7 Determination of antioxidant activity 2.7.1 ABTS radical scavenging assay To determine ABTS radical scavenging assay, the method of Re et al. [28] was adopted.
Antioxidant Activity by DPPH Assay of Potential Solutions ...
www.scielo.brBraz Dent J 23(1) 2012 DPPH assay of solutions used for bleached teeth 23 substances in higher plants, attention has increased on the protective activity of these natural antioxidants
ANTIOXIDANT ACTIVITY, PHENOL AND …
applications.emro.who.intpak. j. pharm. sci., vol.22, no.3, july 2009, pp.277-281 277 antioxidant activity, phenol and flavonoid contents of 13 citrus species peels and tissues
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Determination of Antioxidant Activity, Determination of Antioxidant Activity Antioxidant activity, Antioxidant activity, Phytochemical content and antioxidant properties, Phenolic, Antioxidant, Determination of Vitamin C Concentration, Determination, Polyphenols, Poly phenols, 酸化防止剤力価評価を目的としたDPPHおよびABTSラジカ, Potential of Calamansi Citrofortunella microcarpa, Total Phenolic, Total Flavonoid, Tannin Content, Antioxidant Properties of the Methanol Extracts, Assay, Activity, J. pharm. sci