Extraction of carotenoid compounds from watermelon pulp with microemulsion based technique: Optimization studies


Inam-Cinkir N., AĞÇAM E. , Altay F., AKYILDIZ A.

FOOD CHEMISTRY, vol.380, 2022 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 380
  • Publication Date: 2022
  • Doi Number: 10.1016/j.foodchem.2022.132169
  • Title of Journal : FOOD CHEMISTRY
  • Keywords: Surfactant, Microemulsion, Extraction, Watermelon, Carotenoids, Optimization, CLOUD POINT EXTRACTION, PHENOLIC-COMPOUNDS, ANTIOXIDANT ACTIVITY, BIOACTIVE COMPOUNDS, SEPARATION, SAMPLES, WASTE, PRECONCENTRATION, SURFACTANTS, PESTICIDES

Abstract

The application of two microemulsion based extraction methods (Extraction-1 and Extraction-2) were investigated for the extraction of carotenoids from watermelon pulp in the present study. Span 20 and glycerol for Extraction-1, and sucrose monopalmitate (SMP) with salt (NaCl) for Extraction-2 demonstrated the highest extraction efficiency. Optimization studies by response surface methodology were applied to these conditions. The optimum conditions were conducted as 6.025 g/g of Span 20/pulp sample-(S), 8.827 of glycerol/S, 38.75 degrees C of temperature and 18.75 min of time; 1.13 g/g of SMP/S, 7.53 g/g of Salt/S, 66.25 C and 46.3 min of temperature and time for Extraction-1 and Extraction-2, respectively. The extraction efficiency for the optimum conditions were determined as 96.5% and 83.6% for Extraction-1 and Extraction-2, respectively. The results showed that the proposed methods can be successfully performed in the extraction of carotenoids from watermelon pulp compared to conventional solvent extraction.