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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2015 , Volume 3, Issue 5
Page No. : 14-20
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 Nawaz^1*, Muhammad Aslam Shad¹, Ayesha Ramzan²

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.
Key words: Zia mays L., Maize flour, Phytochemical composition, Particle size, Gamma irradiation, Response surface methodology, Central composite design

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782/2320-7051.2116

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). http://dx.doi.org/10.18782/2320-7051.2116

No. 772, Basant Vihar, Kota

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