International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2015, Volume : 3, Issue : 5
First page : (14) Last page : (20)
Article doi: http://dx.doi.org/10.18782/2320-7051.2116

Optimization of Gamma Radiation Induced Variation in Phytochemical Composition of Maize (Zea mays L.) Flour at Various Levels of Particle Size

Haq Nawaz¹*, Muhammad Aslam Shad¹, Ayesha Ramzan^2
1Department of Biochemistry, Bahauddin Zakariya University, Multan-60800, Pakistan
²Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-60800, Pakistan
*Corresponding Author E-mail: haqnawaz@bzu.edu.pk 
Abstract
Gamma radiation induced variation in phytochemical composition of maize flour was optimized by response surface methodology using central composite design at 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). Response surface analysis of data indicated significant increase (p<0.05) in phytochemical composition in response to a decrease in particle size and increase in gamma radiation dose. Optimum level of radiation dose to achieve maximum value of responses was found to be 75 kGy for total phenolic acids and total tannins and 25 kGy for ascorbic acid content. However, optimum level of mesh number No. to achieve desired levels of each parameter was found to be 80 meshes. 

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Nawaz, H., Shad, M.A., and Ramzan, A., Optimization of Gamma Radiation Induced Variation in Phytochemical Composition of Maize (Zea mays L.) Flour at Various Levels of Particle Size, Int. J. Pure App. Biosci. 3 (5): 14-20 (2015). doi: 10.18782/2320-7051.2116