Extraction of high stearic high oleic sunflower oil (HSHO): Effect of dehulling and hydrothermal pretreatment

被引：11
作者：
de Figueiredo, A. K. [1 ]
Fernandez, M. B. [1 ,2 ]
Nolasco, S. M. [1 ,3 ]
机构：
[1] Univ Nacl Ctr Prov Buenos Aires, Fac Ingn, Nucleo Invest TECSE, Av Valle 5737, Olavarria, Buenos Aires, Argentina
[2] Univ Nacl Ctr Prov Buenos Aires, CONICET, CICPBA, CIFICEN, Olavarria, Buenos Aires, Argentina
[3] Comis Invest Cient Prov Buenos Aires, La Plata, Buenos Aires, Argentina
来源：
JOURNAL OF FOOD ENGINEERING | 2019年 / 240卷
关键词：
High stearic high oleic sunflower; Hydrothermal pretreatment; Dehulling; TOCOPHEROL; BODIES; ACCUMULATION; KINETICS; FIELD; ACID;
D O I：
10.1016/j.jfoodeng.2018.07.015
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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) m(2) s(-1)) and the untreated samples (7.07.10(-12) m(2) 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.
引用
收藏
页码：49 / 55
页数：7
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