Anti-oxidative activities of fermented soy milk: Soybean varieties were investigated for antioxidant activity including Diphenyl
picryl hydrazyl (DPPH) and 2,2-azinobis-3-ethylbenzothiazoline-6-sulphonate (ABTS) assay.
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Picryl CAIRO -- 15 May 2019: As weather experts warned of a heat wave hitting the country, raising the temperature degrees to highs of 40AC and 42AC on Wednesday and Thursday, citizens are advised to avoid heat-related illness during the fasting hours of Ramadan.
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PicrylThe antioxidant capacity was determined by ferric ion reducing antioxidant power method (FRAP) and DPPH (2, 2-diphenyl-1
picryl hydrazyl) free radical scavenging method by spectrophotometry.
Diphenil
picryl hydrazyl (DPPH) was used for the calibration of the g values of the defect centers.
Crude metabolites of Aspergillus terreus (JAS-2) was evaluated for antioxidant assay by using DPPH (2, 2-diphyenyl 2
picryl hydrazyl) free radical scavenging method [14].
The antioxidant compounds react with the radical and convert to
picryl hydrazine from as evidenced through discoloration (from purple to yellow).
Examples of such reactive, haptenic compounds that frequently lead to sensitization after dermal contact or inhalation are toluene diisocyanate, trimellitic anhydride, phthalic anhydride, benzoquinone, formaldehyde, ethylene oxide, dinitrochlorobenzene,
picryl chloride, penicillins, and D-penicillinamine.
In his "Anaphylaxis Experiments," he reported skin sensitization in guinea pigs after treatment with
picryl chloride and 2,4-dinitrochlorobenzene (DNCB).