Centre for Biotechnology, A.C. Tech., Anna University, Chennai 600025, India.
Carbohydr Polym. 2013 Oct 15;98(1):89-94. doi: 10.1016/j.carbpol.2013.04.062. Epub 2013 May 9.
In the present investigation, the polysaccharide/mucilage from waste of Abelmoscus esculentus by modification in hot extraction using two different solvents (Acetone, Methanol) were extracted, characterized and further compared with seaweed polysaccharide for their potential applications. The percentage yield, emulsifying capacity and swelling index of this mucilage were determined. The macro algae and okra waste, gave high % yield (22.2% and 8.6% respectively) and good emulsifying capacity (EC%=52.38% and 54.76% respectively) with acetone, compared to methanol (11.3% and 0.28%; EC%=50%) (PH=7) while swelling index was greater with methanol than acetone extracts respectively. The infrared (I.R.) spectrum of the samples was recorded to investigate the chemical structure of mucilage. Thermal analysis of the mucilage was done with TGA (Thermal Gravimetric Analyzer) and DSC (Differential Scanning Calorimeter) which showed both okra and algal polysaccharide were thermostable hydrogels.
在本研究中，采用两种不同溶剂（丙酮、甲醇）对废弃的蕹菜多糖/黏液进行热提取改性，提取、表征并进一步与海藻多糖进行比较，以评估其潜在应用。测定了该黏液的得率、乳化能力和溶胀指数。与甲醇（分别为 11.3%和 0.28%；EC%=50%）（pH=7）相比，丙酮提取的宏观藻类和黄秋葵废料具有更高的产率（分别为 22.2%和 8.6%）和良好的乳化能力（EC%=52.38%和 54.76%），而溶胀指数则分别高于甲醇提取物。记录样品的红外（I.R.）光谱以研究黏液的化学结构。用热重分析仪（TGA）和差示扫描量热仪（DSC）对黏液进行热分析，结果表明黄秋葵和藻类多糖都是热稳定的水凝胶。
