US EPA

9087992 

Journal Article 

Microwave accelerated solvent extraction of turmeric oleoresin 

Aniesrani Delfiya, DS 

2017 

1 

Research Journal of Chemistry and Environment
ISSN: 0972-0626 

21 

7 

18-24 

English 

Turmeric oleoresin can be obtained by the solvent extraction of the ground turmeric powder with organic solvents like acetone, ethylene dichloride, ethanol etc. One of the major drawbacks of solvent extraction is the lengthy extraction time which results in consumption of more solvent and heat energy. Microwave heating of turmeric powder prior to the solvent extraction can reduce the extraction time and solvent requirement. In this study, the effect of various microwave exposure times viz. 0, 1, 2, 3, 4, 5 and 6 min of turmeric powder on curcumin recovery, total volatiles and non-volatiles of turmeric oleoresin was assessed. It was found that dry turmeric powder irradiated in microwaves for 4 min recorded higher curcumin (70.54 per cent) and oleoresin recovery (0.143 g/g of turmeric powder). 

Microwave exposure; Oleoresin extraction; Turmeric powder