Investigating Thickness and Porosity of Covering Layer of Chitosan on Pistachio Kernel
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 16
Abstract
The main aim of this study was finding a new method to prevent aflatoxin hazard in pistachio kernels. In this study qualitative and quantitative properties of pistachio kernels covered with concentrations 260 ppm, 500 ppm and 750 ppm chitosan have been investigated by imaging through electron microscope with SEM. Some indicators such as thickness, smoothness and the size of porosities of edible and anti microbial cover in chitosan have been analyzed. The results indicated that there is no breakage in any of covers and covering has been done well. Regarding to pictures attained by surfaces of samples we observed that covers of 500 ppm and 750 ppm were smoother than cover of 250 ppm. Comparing covers of 500 ppm and 750 ppm showed that cover of 500 ppm is smoother than cover of 750 ppm. Investigating cross section of samples indicated that cover of 500 ppm is better than 250ppm and 750 ppm in terms of compression and cohesiveness. Conclusion The results of picture analysis indicate that cover of 500 ppm has porosity number and average size of porosity less than two other samples. In total, investigating and comparing pictures and tables related to the surface and cross section of kernels covered with chitosan and observed sample showed that the cover of 500 ppm is the best and most proper cover in any terms.
Authors and Affiliations
Mehdi Kavyani, Matin Razmkhah, Marziye Bolandi, Mahdi Jalali , Mandana Alipour, Mohammad Ali Shariati, Mohammad Zamany Moghadam
Keywords
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