Influence of high-dose gamma radiation and particle size on antioxidant properties of Maize ( Zea mays L. ) flour
Braz. j. pharm. sci
;
52(4): 771-780, Oct.-Dec. 2016. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-951875
ABSTRACT
ABSTRACT Influence of high-dose gamma radiation and particle size on antioxidant properties of maize (Zea mays L.) flour was studied using response surface methodology. A central composite design based on three levels of each of particle size, in terms of mesh number (40, 60 and 80 meshes), and gamma radiation dose (25, 50 and 75 kGy) was constructed. A statistically significant dose-dependent decrease (p<0.05) in antioxidant properties of gamma irradiated flour was observed. However, an increase in the mesh number (decrease in particle size of flour) resulted in an increase in antioxidant properties. The optimum level of radiation dose to achieve maximum value of responses was found to be 50 kGy for Trolox equivalent total antioxidant activity (TETAOA), 25 kGy for iron chelating ability (ICA), 25 kGy for reducing power (RP) and 75 kGy for linoleic acid reduction capacity (LARC). However, the optimum level of mesh number to achieve desired levels of TETAOA, ICA, RP and LARC was found to be 80 meshes
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Zea mays
/
Material Particulado
/
Antioxidantes
Idioma:
Inglés
Revista:
Braz. j. pharm. sci
Año:
2016
Tipo del documento:
Artículo
País de afiliación:
Pakistán
Institución/País de afiliación:
Bahauddin Zakariya University/PK
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