Effect of high pressure pretreatment on drying kinetics and oleoresin extraction from ginger.

Jincy, M. George and Sowbhagya, H. B. and Rastogi, N. K. (2018) Effect of high pressure pretreatment on drying kinetics and oleoresin extraction from ginger. Drying Technology, 36 (9). pp. 1107-1116. ISSN 0006-3002

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Abstract

The present study reports for the first time the effect of high pressure pretreatment (100–400 MPa, 10 min) on drying kinetics of ginger and its oleoresin extraction. High pressure pretreated samples were dried, powdered and solvent extracted. The increase in drying temperature (55–85°C) increased the moisture diffusivity (2.03–4.87 � 10−9 m2/s) but resulted in decrease in 6-gingerol (53.98%) and oleoresin yield (57.31%). However, high pressure pretreatment followed by dehydration (55°C) resulted in higher moisture diffusivity (2.84–6.09 � 10−9 m2/s) as well as enhanced extraction yield of 6-gingerol (34.05%) and oleoresin (28.29%).

Item Type:	Article
Uncontrolled Keywords:	6-gingerol; diffusion coefficient; drying; extraction; high pressure processing; oleoresin
Subjects:	600 Technology > 08 Food technology > 30 Spices/Condiments 600 Technology > 08 Food technology > 06 Preservation and Storage > 02 Drying and Dehydration
Divisions:	Food Engineering Plantation Products Spices and Flavour Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	27 Aug 2018 09:39
Last Modified:	27 Aug 2018 09:39
URI:	http://ir.cftri.res.in/id/eprint/13815

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