Application of response surface methodology to extract yields from stinging nettle under supercritical ethanol conditions
Küçük Resim Yok
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Response surface methodology was employed using a central composite design of experiments to optimize experimental conditions for stinging nettle extract yields under supercritical ethanol conditions. The following independent variables were investigated: extraction temperature, extraction time and plant concentration. The most significant factor was found to be the extraction temperature. A correlation coefficient was estimated to be 0.94, which demonstrates the effectiveness of the model. The values of the parameters in optimized conditions for the stinging nettle extract yield included an extraction temperature of 335 degrees C, an extraction time of 87 min, and a plant concentration of 9. A subsequent validation experiment was carried out at the optimal conditions. The validation experiment showed that the actual and predicted values for the stinging nettle extract yields were 45.3 and 42.7 wt%, respectively. The stinging nettle extracts consisted of a collection of compounds including fatty acid esters (FAE), phenols, indoles, and nitrogen containing compounds. (C) 2013 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Stinging nettle extract, Central composite design, Response surface methodology
Kaynak
Journal of Supercritical Fluids
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
84
