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Food Technology and Biotechnology, Vol. 44 No. 4, 2006.

Original scientific paper

Antioxidant Capacity of Cotyledons and Germs of Soybeanb in Relation to Their Isoflavone Content

Marie-Carmen Monje ; Université Paul Sabatier, UMR 152 IRD-Université, Route de Narbonne 118, F-31062 Toulouse Cedex 9, France
Monique Berger ; Laboratoire d’Agrophysiologie (UMR ESAP-INRA 1054), Ecole Supérieure d’Agronomie de Purpan, 75 voie du Toec, B.P. 57611, F-31076 Toulouse Cedex 3, France
Vincent Farines ; Université Paul Sabatier, UMR 152 IRD-Université, Route de Narbonne 118, F-31062 Toulouse Cedex 9, France
Karine Reybier ; Université Paul Sabatier, UMR 152 IRD-Université, Route de Narbonne 118, F-31062 Toulouse Cedex 9, France
Aude Verger ; Université Paul Sabatier, UMR 152 IRD-Université, Route de Narbonne 118, F-31062 Toulouse Cedex 9, France
Jean Daydé ; Laboratoire d’Agrophysiologie (UMR ESAP-INRA 1054), Ecole Supérieure d’Agronomie de Purpan, 75 voie du Toec, B.P. 57611, F-31076 Toulouse Cedex 3, France
Vassilia Théodorou ; Laboratoire d’Agrophysiologie (UMR ESAP-INRA 1054), Ecole Supérieure d’Agronomie de Purpan, 75 voie du Toec, B.P. 57611, F-31076 Toulouse Cedex 3, France
Françoise Nepveu ; Université Paul Sabatier, UMR 152 IRD-Université, Route de Narbonne 118, F-31062 Toulouse Cedex 9, France

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Abstract

The aim was to study the relationship between the antioxidant capacity and the isoflavone content of soybean extracts depending on both geographic origin and cultivar. Soybean samples were obtained from two soybean seed parts, germ and cotyledon, from two geographical locations (L1, L2) and two cultivars (Queen, Imari), which gave 8 different samples. HPLC determination confirmed higher isoflavone content in germs than in cotyledons, with higher contents in site L2, and in the Queen cultivar. The antioxidant capacity of soybean samples was determined with two methods, the 2,2-diphenyl-1-picrylhydrazyl scavenging assay and the oxygen radical absorbance capacity assay. The results obtained with both assays showed differences in antioxidant capacity between germ and cotyledon extracts, with a higher antioxidant activity of germ extracts.

Keywords

soybean; cultivar; location; isoflavones; antioxidant capacity

Hrčak ID:

110100

URI

https://hrcak.srce.hr/110100

Publication date:

15.12.2006.

Article data in other languages: croatian

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