Abstract The effect of a hydrothermal pretreatment on the solvent extraction of oil and minor compounds (tocopherols) from high stearic high oleic sunflower seeds (HSHO), partially dehulled and undehulled, was analyzed. Samples of sunflower seeds of different origins and oil contents (high oil, 43.0% d.b., and low oil 35.1% d.b.) were used. The oil yield increased significantly due to the hydrothermal pretreatment (p ≤ 0.05) for HSHO samples with high oil content, both partially dehulled and undehulled. The pretreated HSHO samples with low oil content did not show significant differences in oil yield compared to the untreated samples. The effective diffusion coefficients for the hydrothermally pretreated seeds (2.12.10−11 m2 s−1) and the untreated samples (7.07.10−12 m2 s−1) were determined based on the oil extraction from the partially dehulled high oil HSHO samples. For both types of partially dehulled HSHO seeds, a significant increase in tocopherol content in the oils extracted from the pretreated samples was observed.

中文翻译：

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高硬脂酸高油酸葵花籽油 (HSHO) 的提取：脱壳和水热预处理的影响

摘要 分析了水热预处理对从部分脱壳和未脱壳的高硬脂酸高油酸葵花籽 (HSHO) 中溶剂提取油和微量化合物（生育酚）的影响。使用了不同来源和含油量（高油，43.0% db，低油 35.1% db）的葵花籽样品。由于对含油量高的 HSHO 样品（部分脱壳和未脱壳）进行水热预处理（p ≤ 0.05），油产量显着增加。与未经处理的样品相比，经过预处理的低含油量 HSHO 样品在产油率方面没有显着差异。水热预处理种子 (2.12.10−11 m2 s − 1) 和未处理样品 (7.07. 10-12 m2 s - 1) 是基于从部分脱壳的高油 HSHO 样品中提取的油确定的。对于两种类型的部分脱壳 HSHO 种子，观察到从预处理样品中提取的油中生育酚含量显着增加。