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- Title
Qualitative and Quantitative Analysis of Phenolic Acids using High Performance Liquid Chromatography (HPLC) from Organic and Conventional Grapes.
- Authors
BUNEA, Claudiu-Ioan; POP, Nastasia; BABEŞ, Anca; LUNG, Mihai; HODOR, Daniela; CIOBANU, Florentina; BUNEA, Andrea
- Abstract
Organic farming is currently practiced world wide and involve plants which are cultivated without using synthetic pesticides, herbicides or fertilizers and promotes biodiversity, biological cycles and improve the product quality. Qualitative and quantitative analysis of phenolic acids using high performance liquid chromatography (HPLC) from four table grape varieties ('Timpuriu de Cluj', 'Chasselas doré', 'Napoca' and 'Muscat Hamburg') and five wine grape varieties ('Aromat de Iaşi', 'Traminer roz', 'Riesling Italian', 'Fetească regală' and 'Muscat OttoneP) cultivated in organic and conventional systems were studied. The phenolic acids identified from grape skin samples were: gentisic acid, caffeic acid, p-coumaric acid, ferulic acid, o-coumaric acid, resveratrol and quercetin. For all varieties analized the concentrations of ferulic acid, resveratrol and quercetin were higher in conventional grapes than in organic ones (except 'Timpuriu de Cluj'). Among the varieties analyzed we can distinguish the variety 'Napoca', which achieved the highest concentrations of ferulic acid (12.1±1.1mg/kg-organic; 14.9±1.3mg/kg-conventional), resveratrol (4.9±0.5 mg/kg-organic; 5.3±0.8 mg/kg-conventional) and quercetin (16.0±0.8mg/kg-organic; 16.0±1.3mg/kg-conventional) followed at significant differences by 'Muscat Hamburg'and 'Timpuriu de Cluj'.
- Subjects
PHENOLIC acids; HERBICIDES; WEED control; AGRICULTURAL chemicals; ORGANIC farming
- Publication
Bulletin of the University of Agricultural Sciences & Veterinary Medicine Cluj-Napoca. Horticulture, 2012, Vol 69, Issue 1, p104
- ISSN
1843-5254
- Publication type
Article