Preliminary isolation, recovery and characterization of polyphenols from waste Tamarindus indica L. (2017)

• Record Type: Journal Article
• Authors: Ganesapillai, Mahesh; Venugopal, Aswin; Simha, Prithvi
• Is Part Of: Materials today. Volume 4:Number 9(2017)
• Page Start: 10658
• Page End: 10661
• Publication Date: 2017
• Subjects: Microwave Assisted Extraction -- Pharmaceuticals -- (-)-epicatechin -- Ultrasonication -- Flavonoids -- Bioactive component recovery; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.06.438
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Preliminary studies were performed to demonstrate a 'value from waste' concept for recovering polyphenols from waste Tamarindus indica L. by solvent extraction assisted by microwaves and/or ultrasound. To aid formulation of process guidelines, the influence of precursor size, microwave power, ultrasonication intensity and time were investigated. It was found that extract from tamarind shells contained (-)-epicatechin although the seed coat allowed for higher extraction. An optimum extract yield of 62.35 mg and 60.45 mg (per 100 g of dry solid) were obtained for microwave (180 W) and ultrasonication (intensity: 40%) pre-treatment of tamarind seeds of 0.2 mm size using ethanol.