Ultrasound-assisted extraction of D-pinitol from carob pods using Response Surface Methodology

Tetik N., Yüksel E.

ULTRASONICS SONOCHEMISTRY, vol.21, no.2, pp.860-865, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.1016/j.ultsonch.2013.09.008
  • Journal Name: ULTRASONICS SONOCHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.860-865
  • Keywords: Ultrasound, D-Pinitol, Extraction, Efficiency, CERATONIA-SILIQUA L., ACID PRODUCTION, PURIFICATION, SOYBEANS, LIQUID, ROOTS
  • Akdeniz University Affiliated: Yes

Abstract

This study reports on the optimization of the conditions of extraction of D-pinitol compound from carob pods by using ultrasonication. For this purpose, the Box-Behnken design, which is a widely used form of Response Surface Methodology, was used to investigate the effects of parameters on the ultrasound-assisted extraction. Four independent variables, temperature (degrees C), ultrasonic power (W), dilution rate (material:water ratio) and time (min), were studied. The results showed that the highest D-pinitol concentration of 11.98 g/L was obtained with an extraction temperature of 50 degrees C, ultrasonic power of 207W, a dilution rate of 1:4 and an extraction time of 120 min. It was found that the D-pinitol concentration of carob extract increased with the effect of ultrasonication during the extraction process. Therefore, ultrasound-assisted extraction could be used as an alternative to conventional hot water extraction with respect to the recovery of D-pinitol from carob pods with the advantages of lower extraction temperatures, shorter extraction time and reduced energy consumption. (C) 2013 Elsevier B.V. All rights reserved.