Optimization of Process for Extraction of Yellow Pigment from Almond Shell

Abstract:

The effect of extraction temperature,extraction time,alcohol concentration, ratio of material to liquid (g/ml)on extraction yield of natural yellow pigment from waste almond shell were studied. The optimum conditions were determined by L9 (34) the orthogonal test . The optimum extraction conditions are the extraction temperature at 75°C;the extraction time for 2h; the extraction agent concentration of 20%ethanol ; the material-liquid ration (g/ml) 1:15.The extraction yield of natural yellow pigment from almond shell is 6.25%,The order of effects are extraction temperature>extraction time>ratio of material to liquid(g/ml)>alcohol concentration.This research provides the theoretical basis for the industrial production of the extraction of natural almond shell pigment and provides a new way for the re-use of the abandoned almond shell.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 429-432
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.429
• Online since: February 2014
• Authors: Feng Jie Wang
• Keywords: Almond Shell, Extraction, Natural Yellow Pigment, Optimum, Waste

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