Optimization of Ultrasound-Assisted Extraction of Total Extractive Substances from Galium verum L.

  • Katarina Rajković
  • Sanja Jeremić
  • Petar S. Milić
  • Marina Kostić
  • Valentina Arsić-Arsenijević
  • Marijana Gavrilović
  • Boro Krstić

Abstract

Ultrasound-assisted extraction (US-AE) of total extractive substances from the herb Lady`s Bedstraw (Galium verum L.) is useful extraction method for its application in food manufacturing. The effect of different temperatures (T) and solvent-to-solid ratios (S) on the US-AE extraction yield was studied in this paper. The influence and optimum of the operating parameters (T and S) was investigated using response surface methodology (RSM). The T and S had impact on extraction yield. RSM showed that the optimal extraction parameters, which gave a maximum extraction yield of 18.7%, were T of 40 oC and S of 30 kg kg-1. Using modeled optimized conditions, detected relative difference between predicted and experimental yield was 3.3 %. RSM successfully predicted optimal parameters and proved as useful tool for standardization of extraction conditions for bioactive components from plants important for food industry.

Keywords

Galium verum L., Optimization, Response surface methodology, Ultrasound-assisted extraction
Published in Onlinefirst
13-10-2016
How to Cite
RAJKOVIĆ, Katarina et al. Optimization of Ultrasound-Assisted Extraction of Total Extractive Substances from Galium verum L.. Periodica Polytechnica Chemical Engineering, [S.l.], v. 61, n. 3, p. 200-205, 2017. ISSN 1587-3765. Available at: <https://pp.bme.hu/ch/article/view/9580>. Date accessed: 23 nov. 2017. doi: https://doi.org/10.3311/PPch.9580.
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