Full Characterisation of Crambe abyssinica Hochst. Seed Oil

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• 作者：Stavros Lalas (1)
  Olga Gortzi (1)
  Vasilios Athanasiadis (1)
  Eftalia Dourtoglou (2)
  Vassilis Dourtoglou (2)
  
• 关键词：Crambe abyssinica seed oil ; Oil characterisation ; Relative position of fatty acids in triglycerides ; Sterols ; Susceptibility to oxidation ; Thermal profile
• 刊名：Journal of the American Oil Chemists' Society
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：89
• 期：12
• 页码：2253-2258
• 全文大小：245KB
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• 作者单位：Stavros Lalas (1)
  Olga Gortzi (1)
  Vasilios Athanasiadis (1)
  Eftalia Dourtoglou (2)
  Vassilis Dourtoglou (2)
  
  1. Department of Food Technology, Technological Educational Institution of Larissa (Karditsa Annex), Terma N. Temponera str., 43100, Karditsa, Greece
  2. Department of Enology and Beverage Technology, Technological Educational Institution of Athens, Agiou Spyridonos str., Egaleo, 12210, Athens, Greece
  
• ISSN：1558-9331

文摘

This work was dedicated to reporting the full chemical and physical characterisation of Crambe abyssinica Hochst. seed oil. The oil from the seeds was extracted using n-hexane. The seeds contain about 30聽% oil. Density, refractive index, colour, smoke point, viscosity, acidity, saponification value, iodine value, fatty acid methyl esters, the relative position of fatty acids in C1 and C3 carbon glycerol, sterols, tocopherols, peroxide value, $ \mathop E\nolimits_{{1{\text{cm}}}}^{1\,\% } $ at 232聽nm, and the susceptibility to oxidation measured by the Rancimat method were determined. The oil was found to contain high levels of unsaturated fatty acids, especially C22:1 (63.77聽%). The dominant saturated acid was C22:0 (2.14聽%). The oil was also found to contain high levels of 尾-sitosterol (51.93聽%), campestanol (21.98聽%), and brassicasterol (12.35聽%). 伪-, 纬-, and 未-Tocopherols were detected up to levels of 7.67, 125.04, and 3.99聽mg/kg, respectively. The induction period (at 110聽掳C and 20聽l/h) of the oil was 8.83聽h. The relative position of fatty acids in C1 and C3 position was as follows: linoleic 0.45聽%, oleic 8.84聽%, and erucic 90.72聽%. The thermal profile of the oil presented a single peak at 鈭?0.94聽掳C.