Antioxidant Activity, Color, Carotenoids Composition, Minerals, Vitamin C and Sensory Quality of Organic and Conventional Mandarin Juice, cv. Orogrande
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Navarro, Patricia; Gabaldón, José Antonio; Pérez López, Antonio José; Mercader Ros, María Teresa; Carbonell Barrachina, Ángel AntonioFecha
2011Disciplina/s
Ciencias de la AlimentaciónMateria/s
Bb-cryptoxanthin,Sensory evaluation
Mandarins
Organic farming
Juices
Orogrande
Resumen
The effects of organic farming on antioxidant activity, CIE L*a*b* color, carotenoids composition, minerals
contents, vitamin C and sensory quality of Orogrande mandarin juices were studied. Independent of
the farming type, mandarin juices can be considered as good source of some important nutrients, such as
potassium and antioxidant chemicals, for example, b-cryptoxanthin. Organic farming of mandarins
resulted in juices with higher antioxidant activity, total carotenoids concentrations, minerals (Ca, K and
Fe) contents, vitamin C content, more appealing and intense orange color and better sensory quality. For
instance, organic Orogrande juice contained significantly (p<0.001) higher total carotenoids content
(22.7±0.3 mg/L) than conventional juice (15.7±0.4 mg/L); a similar pattern was observed for the antioxidant
activity, with values being 0.076±0.004 and 0.053±0.003mM Trolox m/L in organic and convectional
juices, respectively. A trained panel stated that organic Orogrande...