Plant Foods for Human Nutrition

, Volume 65, Issue 3, pp 253–259

Determination of Antioxidant Constituents in Cactus Pear Fruits

Authors

    • Departamento de Ingeniería Química y AmbientalUniversidad Politécnica de Cartagena (UPCT)
  • Luís Almela
    • Departamento de Química AgrícolaUniversidad de Murcia
  • José M. Obón
    • Departamento de Ingeniería Química y AmbientalUniversidad Politécnica de Cartagena (UPCT)
  • Rosario Castellar
    • Departamento de Ingeniería Química y AmbientalUniversidad Politécnica de Cartagena (UPCT)
ORIGINAL PAPER

DOI: 10.1007/s11130-010-0189-x

Cite this article as:
Fernández-López, J.A., Almela, L., Obón, J.M. et al. Plant Foods Hum Nutr (2010) 65: 253. doi:10.1007/s11130-010-0189-x

Abstract

An analytical study was carried out on the presence of antioxidant constituents and the in vitro antioxidant capacity in the extracts of three species of Spanish red-skinned cactus pear fruits (Opuntia ficus-indica, Opuntia undulata and Opuntia stricta). The cactus pear fruit extracts were analyzed for determined constituents: ascorbic acid, flavonoids (quercetin, isorhamnetin, myricetin, kaempferol and luteolin), betalains, taurine, total carotenoids and total phenolics. The antioxidant capacity was assessed by means of two different methods: the 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (Trolox equivalent antioxidant capacity) method and the 2,2-diphenyl-1-picrylhydrazyl radical method. Opuntia ficus-indica fruit extract had the strongest antioxidant capacity and taurine content. O. stricta fruits were the richest in ascorbic acid and total phenolics, whereas O. undulata fruits showed the highest carotenoid content. Quercetin and isorhamnetin were the main flavonoids detected. This study provides basic information on the presence of bioactive compounds and antioxidant capacity in extracts of cactus pear fruits, in order to consider these extracts as ingredient for the production of health-promoting food.

Keywords

AntioxidantsBioactive compoundsCactaceaeCactus pear fruitsOpuntia

Copyright information

© Springer Science+Business Media, LLC 2010