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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
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 <i>p</i>H 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.
Description: 272-276
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.35(3) [September 2010]

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