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Extraction of Palas dye for its use in Textile Coloration

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Title Extraction of Palas dye for its use in Textile Coloration
Not Available
 
Creator S. Srivastava
Deb Prasad Ray
S.K. Giri
 
Subject Butea monosperma
palas dye
butein
food
pharmaceuticals
 
Description Not Available
Natural colorants are emerging globally as the safer and eco-friendly leaving synthetic colorant behind in the race. An attempt has
been made to extract the dye from fresh, shade dried; field dropped and sun dried flowers of Butea monosperma (Palas). A good quantity of crude dye was recovered to the extent of 4, 18 and 9 per cent respectively on weight basis. The compounds present in the flowers were analyzed through spectral means and identified as Chalcone, butein (C15H12O5), orange yellow needles and a small quantities of colourless isomeric flavanone, butin (C15H12O5), and its glycoside, butrin. The crude dye after further purification
and refining has tremendous scope as a medicine or ingredient for other medicine and can also serve as colouring material in soft drinks and other food products like ham/sausages, jam, chowmin noodles etc.
Highlights
• Method of palas dye extraction methodology have been standardized
• The yield of dye using cold percolation and soxhlet method of extraction were 4% and 2%, respectively
• The dye extract was fractionated through solvent extraction techniques using solvent like hexane, chloroform, ethyl acetate and n-butanol
• The separated constituents were characterized through physical determination of melting points, boiling points and instrumental methods like UV and Infra red (IR) and GC-MS
• Compounds identified from the palas dye were chalcone, small quantities of colourless isomeric flavanone, butin and its glycoside, butrin.
 
Date 2018-11-19T10:21:53Z
2018-11-19T10:21:53Z
2013-09-03
 
Type Research Paper
 
Identifier Not Available
0974-1712 for offline, 2230-732X for online
http://krishi.icar.gov.in/jspui/handle/123456789/12087
 
Language English
 
Relation 6;3
 
Publisher ©2013 New Delhi Publishers