Preparation process of peanut oil

Abstract

The invention relates to a preparation process of peanut oil and belongs to the technical field of plant oil preparation. The preparation process of the peanut oil comprises the following steps of material selection, frying, peeling, squeezing, degreasing, press-filtering, settling and filling. The preparation process of peanut oil combines low-temperature squeezing with sectional intermittent pressurizing, the obtained peanut oil can retain thermosensitive functional active materials, effectively preserve flavor and nutrition of peanuts and improve the quality of the peanut oil; the peanut oil is nutritive, healthful and rich in flavor; after peanuts are fried, low-temperature airflow is applied to accelerating cooling and meanwhile replenishing water content to reduce influence of subsequent hot roller pressing, effectively reduce lecithin content, improve the oil extraction rate, accelerate cooling and meanwhile replenish part of the moisture content, thereby reducing influence of pressing in a heating roller crusher; besides, by combining physical mixing and multiple filtering, the lecithin content can be effectively reduce, and the oil extraction rate can be improved; during preparation, no chemical agent is added, so that good safety and high quality of the peanut oil can be achieved.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil preparation, in particular to a preparation process of peanut oil. Background technique [0002] Peanut is an important oil crop and economic crop in my country. The peanut sowing area in China accounts for 20% of the world's peanut sowing area, while the total output accounts for more than 40% of the world's peanut production, and the peanut export volume accounts for more than 45% of the international peanut trade. Therefore, my country's peanut occupies a pivotal position in the world's peanut production, trade and processing. Peanuts are high in protein and unsaturated fatty acids, rich in vitamins A, B, C, E, etc., and contain Ca, P, Fe, Zn, K and other mineral elements that are beneficial to the human body, especially peanuts The types and quantities of amino acids in protein are rich. The essential amino acids account for 25% of the total amino acids, and the types are complete and re...

AI Technical Summary

Problems solved by technology

However, the pressing method is generally high-temperature pressing to make oil. The high temperature severely damages the nutritional components in the oil, which greatly affects the nutritional quality of the product. At the same time, the peanut protein is severely denatured, and the denatured peanut protein cannot be effectively used, resulting At the same time, although many manufacturers use multiple pressings, the operating environment for multiple pressings is the same, and there are defects such as low oil extraction rate and high residual oil rate.

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