1Department of Biochemistry, Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, Rajasthan, India
2School of Biosciences, Suresh Gyan Vihar University, Jaipur, Rajasthan, India
3Department of Biotechnology, Jaipur National University, Jaipur, Rajasthan, India
4Department of Physiology, Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, Rajasthan, India
*Author for Correspondence: Email: avimithi@gmail.com
Online published on 11 January, 2013.
The antioxidant capacity and bioactive compounds in leaves of ten different rapeseed-mustard varieties were studied. Variety purple mutant showed highest ABTS (2, 2-azobis-3-ethyl benzthiazoline-6-sulphonic acid) radical scavenging activity (1.07 mg trolox equivalent antioxidant activity/g) as well as reducing power activity (11.6 mg/g). Total phenol content varied from 3.63–10.56 mg gallic acid equivalent/g.Total phenol content was also found to be the highest (13.12 mg gallic acid equivalent/g) in variety purple mutant. A positive correlation of phenol content with ABTS radical scavenging activity as well as with reducing power assay was observed. The values of glucosinolates, ascorbic acid and f1avonoids varied significantly among the varieties. The results showed that the leaves of Indian rapeseed mustard varieties possess antioxidant activities and could be consumed in raw or processed form.
ABTS, antioxidant activity, glucosinolates, phenol, reducing power
