CRYSTALLINE STARCH CITRATE BIOPOLYMER NANORODS AS POTENTIAL STABILIZERS IN NANO AND MICRO EMULSIONS

Authors : Oluwaseyi SALİU, Gabriel OLATUNJİ, Oluwatoyin AJETOMOBİ, Adebayo OLOSHO, İdobu ABİODUN, Gbenga AMUSAN

Pages : 191-200

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Publication Date : 2017-11-12

Article Type : Research Paper

Abstract :The area of green chemistry which involves the synthesis of biodegradable polymers with better stabilizing properties is fast-developing. Starch biopolymer was citrate modified and converted to crystalline nanorods through green methods and was fully characterized using the fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FTIR);, scanning electron microscopy insert ignore into journalissuearticles values(SEM);, transmission electron microscopy insert ignore into journalissuearticles values(TEM);, x-ray diffraction studies insert ignore into journalissuearticles values(XRD); and thermogravimetric analysis insert ignore into journalissuearticles values(TGA);. The crystalline starch citrate showed better morphological and thermal stability properties than the ordinary and modified normal starch which has not been converted to nano form. The starch citrate nanoparticle showed characteristic bragg reflection angles at 2θ of 24°, 29° and 33° while the TGA result revealed a single step thermal degradation at 240 to 410 °C and percentage weight loss of about 89%. The SEM and TEM also confirmed the synthesis of rod-like or cylindrical nanoparticles with little or no aggregation. This property coupled with the thermal stability makes starch citrate nanoparticles a good stabilizer for nano and micro emulsions.
Keywords : Starch citrate, nanoparticles, stabilizer