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RESEARCH PRODUCT

The Antioxidant Potential of White Wines Relies on the Chemistry of Sulfur-Containing Compounds: An Optimized DPPH Assay

Jordi BallesterMaria NikolantonakiChristian CoelhoRémy RomanetFlorian BahutRégis D. GougeonYouzhong Liu

subject

AntioxidantDPPHmedicine.medical_treatmentPharmaceutical ScienceMethanethiolWineantioxidant capacity01 natural sciencesAntioxidantsCatechinAnalytical ChemistryEC<sub>20</sub>Ferulic acidchemistry.chemical_compoundcaractérisation sensorielleDrug Discovery[SDV.IDA]Life Sciences [q-bio]/Food engineeringCaffeic acidFood sciencefood and beveragesCatechinChimical engineering04 agricultural and veterinary sciences040401 food science3. Good healthChemistryChemistry (miscellaneous)Alimentation et NutritionMolecular Medicinesulfur compoundscapacité antioxydanteCoumaric AcidsDPPH;antioxidant capacity;Chardonnay;white wine;EC20;sensory oxidation level;sulfur compoundswhite winesensory oxidation levelChardonnayArticlelcsh:QD241-4410404 agricultural biotechnologyCaffeic Acidslcsh:Organic chemistryPhenolsPicratesmedicineEC20Food and NutritionGénie chimiqueHumansPhysical and Theoretical ChemistryBiologyvin blanc010401 analytical chemistryOrganic ChemistryBiphenyl CompoundsGlutathione0104 chemical sciencesHigh-Throughput Screening AssayschemistryPolyphenolDPPH

description

The DPPH (2,2-Diphenyl-1-picrylhydrazyl) assay is an easy and efficient method commonly used to determine the antioxidant capacity of many food matrices and beverages. In contrast with red wines, white wines are poorer in antioxidant polyphenolics, and the more hydrophilic sulfur-containing compounds in them may contribute significantly to their antioxidant capacity. The modification of the classical DPPH method, with a methanol-buffer and the measure of EC20 (quantity of sample needed to decrease the initial DPPH concentration by 20%) has shown that sulfur-containing compounds such as cysteine (0.037 &plusmn

yearjournalcountryeditionlanguage
2019-04-05Molecules
10.3390/molecules24071353http://dx.doi.org/10.3390/molecules24071353