期刊
JOURNAL OF OLEO SCIENCE
卷 65, 期 9, 页码 733-738出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess15252
关键词
P. khinjuk; pretreatment time; quality; ultrasound-assisted solvent extraction; yield
In this study, the effect of three amplitudes of ultrasound -assisted solvent extraction (UASE) (0, 25 and 50 %; 100 W, 30 kHz; the 0% treatment serving as control) on yield and quality of extracted oil from P. khinjuk hull at various pretreatment times (15, 30 and 45 min) was evaluated. The highest oil yields at the three amplitude levels tested were 24.4, 29.8 and 37.8% for 0, 25 and 50 %, respectively. Although increase in pretreatment time increased oil yield, pretreatment time at 30 and 45 min did not significantly different for both 25 and 50% amplitude. Furthermore, UASE did not significantly affect fatty acid composition, peroxide value (PV), conjugated diene value (CDV) and anisidine value (AnV) of extracted oils. UASE also increased tocopherols and tocoterienols content of oils but pretreatment time at 30 and 45 min did not significantly different for them. Therefore, UASE increase yield and quality of extracted oil and reduce extraction time. All these advantages make UASE a good substitute for the extraction of oil.
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