Supercritical Carbon Dioxide Extraction of Seabuckthorn Seed Oil and Analysis of Thermosensitive Substances

doi:10.7506/spkx1002-6630-201224020

Abstract

Abstract:

In the present study, the supercritical carbon dioxide extraction of seabuckthron seed oil was optimized using an orthogonal array design. Besides, thermosensitive substances in seabuckthron seed oil were analyzed. The optimum extraction conditions were determined as extraction at 40 ℃ at an extraction pressure of 25 MPa and a separation pressure of 8 MPa for 120 min with a CO2 flow rate of 18 kg/h. Under these conditions, the oil yield was 52%. The content of α-VE as a thermosensitive substance in seabuckthron seed oil was 2.6% as determined by HPLC and supercritical carbon dioxide extraction resulted in a 3.7% α-VE loss when compared with cold pressing. The content of carotene in seed oil obtained by supercritical carbon dioxide extraction was 100850 μg/100 g.

Key words: supercritical carbon dioxide, seabuckthorn seed oil, α-VE, carotene

CLC Number:

TS229

References

[1]银建中,孙献文,原华山,丁信伟.超临界CO2流体萃取沙棘油实验研究[J].化学工业与工程技术,2001, 26(6):9-11.

[2]忻扭年等.沙棘油的特性及其制油工艺[J].中国油脂,1993:(2):8.

[3]赵元藩.沙棘油的精制及其在化妆品中的应用[J].云南师范大学报,2000,20(2):48-49.

[4]曹志丹.沙棘国内外研究状况的评述[J].中国油脂,1993,(3):3-8.

[5]忻耀年,刘永霞.沙棘油质量控制及品质评定分析研究[J].沙棘,1999,12(4):22-27.

[6]梁爱军,张素华,王巨成.超临界CO2萃取沙棘油工艺研究[J].山西林业科技,2000，(3):22-25.

[7]刘永霞,王晓君.沙棘油中幽醇组分的分析[J].四川棘油科技,1998,(2):51-54.

[8]忻耀年,项东方.沙棘油的气液色谱分析及制油工艺研究[J].沙棘,1995,8(1):27-32.

[9]张素华.CO2超临界萃取沙棘油酸价测定[J].山西林业科技,2001(2):15-17.

[10]Sovova H, Kucera J, Jez J?Rate of the vegetable oil ex-tration with supercritical carbon dioxide —Ⅱ.Extraction of grape oil[J].Chem?Engng Sci?,1994,49:415-420.

[11]Cygnarowicz,Miriam L,Seider,Warren?Design and con-trol of a process to extractβ-carotene with supercritical carbon dioxide[J].Biotechnology Progress, 1990,6(1):82-91.

[12]Cuperus F P, Boswinkel G, Derksen T P?Processing of new oilseed crops - an economic evaluation[J].JAOCS,Journal of the American Oil Chemists’Society, 1996,73(12):1635-1640.

[13]Perrut M,Clavier J Y, Poletto M,Reverchon E?Mathe-matical modeling of sunflower seed extraction by super-critical CO2[J].Industrial & Engineering Chemistry Re-search,1997,36(2):

430-435.

[14]Fullana M,Trabelsi F,Recasens F?Use of neural net computing for statistical and kinetic modelling and simu-lation of supercritical fluid extractors[J].Chemical Engi-neering Science, 1999,54(24):5845-5862.

[15]李桂华.油料油脂检验与分析[M].化学工业出版社,2006,179-181.