Abstract
This paper aims to investigate chemical composition, rheological behavior, antioxidant activity and functional properties of Cordia myxa mucilage (CMM). Response surface methodology (RSM) demonstrated that optimum conditions for CMM extraction were as follow: ultrasound power of 99.37 W, extraction temperature of 88.05 °C and solid to water ratio of 16.25 w/w. CMM had, on average, 77.51% carbohydrate, 5.86% total ash, 8.90% protein, 6.90% moisture, and 1.00% fat. Due to a high level of nutrients, CMM can be suggested as a value added by-product in food and pharmaceutical systems. CMM is a low molecular weight polysaccharide containing three fractions with various molecular weights. FT-IR spectrum illustrated that this polymer had all typical bands and peaks characteristics of polysaccharides. Based on steady shear measurements, CMM can be introduced as a new source of hydrocolloid with high-temperature stability. CMM had the desirable antiradical capacity, water solubility and water/oil holding capacity.
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