Pretreatment process for obtaining safe, nutritional and good-sensory-quality pressed sunflower seed oil

Abstract

The invention discloses a pretreatment process for obtaining safe, nutritional and good-sensory-quality pressed sunflower seed oil, and the pretreatment process is carried out before a pressing step.The pretreatment process comprises the following steps that sunflower seeds are husked and the husks are separated after husking to obtain seed husks and seed kernels, the seed kernels are taken as feed for the pressing step, and the clean kernel rate of the seed kernels is 20-80%. In addition, the invention also discloses a manufacturing method of the pressed sunflower seed oil, and the manufacturing method comprises the following steps: the pretreatment process is carried out to obtain the seed kernels; the seed kernels are roasted; the seed kernels are squeezed to obtain crude oil; and thecrude oil is processed to obtain finished sunflower seed oil. In addition, the invention also provides the pressed sunflower seed oil obtained by the preparation method. The safe, nutritional and good-sensory-quality pressed sunflower seed oil can be obtained by the pretreatment process.

Description

technical field [0001] The invention relates to a pretreatment process, a manufacturing method and the edible oil of edible oil, in particular to a pretreatment process, a manufacturing method and the pressed sunflower oil of pressed sunflower oil. Background technique [0002] Sunflower seed is one of the eight major oil crops in my country, which is rich in polyunsaturated fatty acids, of which linoleic acid content is 50-70%. According to statistics, the average annual compound growth rate of global sunflower oil production from 2012 to 2017 was 7.72%, and the consumption of sunflower oil in my country also showed a significant increase trend. Sunflower oil is divided into pressed oil and extracted oil. The pressed oil is sunflower seeds fried in direct fire and then pressed, which retains the mellow flavor of the raw material, while the extracted oil is mostly tasteless or has a light smell. [0003] In addition, for pressed oil, sunflower seeds mostly use unhulled whol...

AI Technical Summary

Problems solved by technology

[0009] To sum up, it can be seen that the existing techniques for squeezing sunflower oil both at home and abroad are unhulled or dehulled sunflower kernels and then squeezed, and the peeling rate of the shelled sunflower kernels is ≥93%, which means that the wind-selected sunflower oil is more than 93%. The net kernel rate after sieving (that is, the sunflower kernel content in the squeezed material) is also ≥90%, but none of them has established a method of retaining appropriate sunflower shells to assist the press chamber in the pressing process to build pressure and improve the oil yield. No research has been done on the effect of net kernel rate on the content of harmful factors, anti-nutritional factors, and factors that reduce sensory quality of sunflower seeds obtained through the pressing process

At the same time, there is also a lack of technical conditions for optimizing the shelling process and subsequent conditions for frying and roasting sunflower seeds.

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