Solubility of red pepper (C<Emphasis Type="Italic">apsicum annum</Emphasis>) oil in near- and supercritical carbon dioxide and quantification of capsaicin |
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Authors: | Kyung-Tae Kwon Md Salim Uddin Go-Woon Jung Jeong-Eun Sim Seung-Mi Lee Hee-Chul Woo Byung-Soo Chun |
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Affiliation: | 1.Department of Food Science and Technology,Pukyong National University,Busan,Korea;2.Department of Chemical Engineering,Pukyong National University,Busan,Korea |
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Abstract: | Red pepper oil was extracted using near- and supercritical carbon dioxide. Extraction was carried out at pressures ranging
from 10 to 35 MPa and temperatures from 30 to 60 °C, with a CO2 flow rate of 24.01 g/min using a semi-continuous high-pressure extraction apparatus. The duration for extraction was 2 h.
The highest oil yield was found at high pressure and temperature. The highest solubility of oil (1.18 mg/g of CO2) was found at 35 MPa and 60 °C. The solubility data of red pepper oil in near- and supercritical CO2 were fitted in Chrastil model. The fatty acid composition of red pepper oil was analyzed by gas chromatography (GC). Linoleic
acid was found to be the major fatty acid in the oil. Capsaicin was quantified in different extracts by high performance liquid
chromatography (HPLC). The highest capsaicin yield was found at 35 MPa and 60 °C. |
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