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Title: Evaluation of various techniques for extraction of natural colorants from pomegranate rind- Ultrasound and enzyme assisted extraction
Authors: Tiwari, Harish C
Singh, Pratibha
Mishra, Pradeep Kumar
Srivastava, Pradeep
Keywords: Cotton;Enzyme assisted extraction;Enzyme-mediated ultrasound assisted extraction;Pomegranate dye;Pomegranate rind;Ultrasound assisted extraction;Wool
Issue Date: Sep-2010
Publisher: NISCAIR-CSIR, India
Abstract: Ultrasound, enzyme and enzyme-mediated ultrasound assisted extraction processes have been used for the extraction of dye from pomegranate rind. Optimum parameters for dye extraction are found to be pH 10, extraction time 40 min and temperature 50 °C. The yields for ultrasound, enzyme, enzyme-mediated ultrasound assisted and solvent extraction are found to be 29.2%, 26.5%, 35.6% and 8.8% respectively. The dye obtained has been used for dyeing wool and cotton, keeping the optimum dye bath concentration as 10% and 8% (w/v) respectively. The fastness properties of wool are found to be very good while that of cotton is only satisfactory.
Page(s): 272-276
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.35(3) [September 2010]

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