Effects of process parameters on supercritical CO 2 extraction of total phenols from strawberry (Arbutus unedo L.) fruits: An optimization study
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this work was to optimize total phenolic yield of Arbutus unedo fruits using supercritical fluid extraction. A Box-Behnken statistical design was used to evaluate the effect of various values of pressure (50-300 bar), temperature (30-80°C) and concentration of ethanol as co-solvent (0-20%) by CO 2 flow rate of 15 g/min for 60 min. The most effective variable was co-solvent ratio (p<0.005). Evaluative criteria for both dependent variables (total phenols and radical scavenging activity) in the model were assigned maximum. Optimum extraction conditions were elicited as 60 bar, 48°C and 19.7% yielding 25.72 mg gallic acid equivalent (GAE) total phenols/g extract and 99.9% radical scavenging capacity, which were higher than the values obtained by conventional water (24.89 mg/g; 83.8%) and ethanol (15.12 mg/g; 95.8%) extractions demonstrating challenges as a green separation process with improved product properties for industrial applications. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Açıklama
Anahtar Kelimeler
Arbutus unedo, Box-Behnken, Optimization, Supercritical fluid extraction, Total phenols
Kaynak
Journal of Separation Science
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
34
Sayı
15
