
Physical and Thermal Studies of Extruded Bio-Plastics Based on Potato Flour and Starch
Thermoplastic flour (TPF) and starch (TPS) were developed from potato flour and starch using extrusion technology at 125 C in this study. A plasticizer mixture of glycerol and triethyl citrate was used at 25, 30, and 35% of total weight (w/w), respectively. Experimental studies showed
that TPF was comparable to TPS in moisture content (13.5–22.6%), density (1.1–1.4 g cm –3, water solubility index (21–38%), melt flow index (0.00–12.87 g/10 min), and moisture sorption isotherm behaviour. However, TPF samples showed lower Tg and better water wettability
capacity than TPS samples. In addition, TPF samples were weaker and softer than TPS. Extrusion experiments suggested that lowest plasticizer content required for TPS extrusion was 30% and 25% for TPF.
Keywords: MOISTURE SORPTION ISOTHERM; PHYSICAL PROPERTIES; POTATO FLOUR; SURFACE TENSION
Document Type: Review Article
Publication date: April 1, 2015
- The goal of the creation of a biobased economy is challenging to agriculture, forestry, academia, government and industry. The extractable resources of the Earth are finite, regardless of the quibble over when they will be depleted. The economic, political and social demands for biobased chemicals, materials and energy are expected to radically transform the materials industries, particularly the plastics industry as well as the biofuel industry. These changes will be based on the principles of sustainability, eco-efficiency, industrial ecology, and green chemistry and engineering. In keeping with the growth of knowledge in this field, there is a strong need for a forum to share original research related to biobased materials and bioenergy. The Journal of Biobased Materials and Bioenergy (JBMB) has been created as an international peer-reviewed periodical to fulfill the need for communication in these research areas. This journal will encompass related research activities in all fields of science, engineering and the life sciences.
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