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Effects of Drying and Extraction Methods on the Quality and Antioxidant Activity of Sea Buckthorn (Hippophae rhamnoides) Berries and Leaves

Effects of Drying and Extraction Methods on the Quality and Antioxidant Activity of Sea Buckthorn (Hippophae rhamnoides) Berries and Leaves

Authors :
Panagiotis Kefalas
Magdalini Krokida
Konstantina Kyriakopoulou
Athina Pappa
Anastasia Detsi
Source :
Drying Technology. 31:1063-1076
Publication Year :
2013
Publisher :
Informa UK Limited, 2013.

Abstract

Sea buckthorn is a promising source of bioactive compounds. However, there is limited information on the effect of post harvest drying and extraction of sea buckthorn on its antioxidant capacity. The effect of freeze, air, and solar dryingon the extraction yield of sea buckthorn berries and leaves was evaluated with respect to their bioactive content. Sequential extraction with solvents of different polarity and solvent-free microwave-assisted extraction were applied. Freeze-drying has better performance in the berries’ extracts, while air-drying has better performance in the leaves’ extracts. All data were analyzed by Multi Factor Analysis of Variance (ANOVA) and Duncan's post-hoc tests at a level of α = .05. Although the extraction yield in the sequential extraction of sea buckthorn berries is significantly better, the leaves’ extracts exhibit superior radical scavenging ability. Accelerated solar drying appears to preserve sea buckthorn leaves without degrading their antioxidant content. The components...

Details

ISSN :
15322300 and 07373937
Volume :
31
Database :
OpenAIRE
Journal :
Drying Technology
Accession number :
edsair.doi...........81da8f545ffbf637f5c3610b2f342bf6
Full Text :
https://doi.org/10.1080/07373937.2013.773907