Extraction and Characterization of Flaxseed Oil Obtained with Subcritical n-Butane
| Autor: | Xuede Wang, Tian-Feng Zhang, Shuai Wang, Zhen-Shan Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
Chromatography 030309 nutrition & dietetics General Chemical Engineering Extraction (chemistry) Oxidation stability Butane 04 agricultural and veterinary sciences General Medicine General Chemistry 040401 food science 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology chemistry Yield (chemistry) Optimal combination Oil quality Fatty acid composition Response surface methodology |
| Zdroj: | Journal of Oleo Science. 69:1011-1020 |
| ISSN: | 1347-3352 1345-8957 |
| DOI: | 10.5650/jos.ess20051 |
| Popis: | In this study, subcritical n-butane was adopted to extract oil from flaxseed. The extraction conditions i.e. extraction temperature, extraction time, and liquid-solid ratio were investigated and optimized by response surface methodology. The flaxseed oil obtained by subcritical n-butane were characterized and compared with those prepared by n-hexane and cold pressing. Results indicated that the optimal combination of parameters was 53.93℃, 56.82 min, and 19.98:1 mL/g. Subcritical n-butane had higher yield (28.75%) than n-hexane and cold pressing. GC analysis indicated that subcritical n-butane extraction had no obvious influence on the fatty acid composition. Nevertheless, the oil obtained by subcritical n-butane with higher contents of phytosterols (2.93 mg/g) and carotenoids (46.56 mg/kg), and presented a higher oxidation stability (9.27 h). Thus, it was suggested that subcritical n-butane extraction is a promising alternative to extract high quality flaxseed oil. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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