Effect of high pressure pretreatment on drying kinetics and oleoresin extraction from ginger. Issue 9 (4th July 2018)

• Record Type: Journal Article
• Authors: George, Jincy M.; Sowbhagya, Halagur B.; Rastogi, Navin K.
• Is Part Of: Drying technology. Volume 36:Issue 9(2018)
• Page Start: 1107
• Page End: 1116
• Publication Date: 2018-07-04
• Subjects: 6-gingerol -- diffusion coefficient -- drying -- extraction -- high pressure processing -- oleoresin; Drying -- Periodicals; Desiccation; 660.28426
• DOI: 10.1080/07373937.2017.1382505
• Languages: English
• ISSNs: 0737-3937

Abstract

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 m 2 /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 m 2 /s) as well as enhanced extraction yield of 6-gingerol (34.05%) and oleoresin (28.29%).