Method for moderately processing and preparing peanut oil

Abstract

The invention discloses a method for moderately processing and preparing peanut oil. The method comprises the following steps that peanut kernels with quality indexes of 1 grade and 2 grade are selected, dried and peeled to prepare and obtain net peanut kernels, and the net peanut kernels are all crushed and subjected to blank rolling to obtain net peanut blank pieces; the net peanut blank piecesare sequentially roasted and pressed to obtain crude peanut oil and peanut cakes; the crude peanut oil is subjected to hydrated degumming treatment after centrifugal filtration to obtain degummed crude oil; the degummed crude oil is subjected to physical deacidification treatment to obtain deacidified crude oil; the deacidified crude oil is pre-decolorized by adsorption of bentonite, pre-decolorized crude oil is obtained by centrifugally picking supernatant oil, then the pre-decolorized crude oil is subjected to compound decolorization treatment by adsorption of the bentonite, and decolorizedcrude oil is obtained by centrifugally picking supernatant oil; and the decolorized crude oil is deodorized to obtain the finished peanut oil. The method for moderately processing and preparing the peanut oil has a safe process, convenient preparation, great retention of beneficial concomitant in the peanut oil and reduction of the production cost.

Description

technical field [0001] The invention relates to the technical field of peanut oil, in particular to a method for moderately processing and preparing peanut oil. Background technique [0002] With the rapid increase in the number of domestic peanuts and imported peanuts, the supply and per capita annual consumption of peanut oil for Chinese residents have grown rapidly, and some problems have also been exposed. For example, with the innovation of edible peanut oil processing technology and the improvement of refining degree, the quality of peanut oil has been improved, but peanut oil is prone to unsafe factors such as oxidative rancidity, color aftertaste and shortened shelf life during processing, storage and distribution. At the same time, the excessive processing phenomenon in the existing peanut oil production process is prominent, resulting in the production of harmful substances, such as trans fatty acids, glycerol polymers and heavy metal pollution, which all constitut...

AI Technical Summary

Problems solved by technology

For example, with the innovation of edible peanut oil processing technology and the improvement of refining degree, the quality of peanut oil has been improved, but peanut oil is prone to unsafe factors such as oxidative rancidity, color aftertaste and shortened shelf life during processing, storage and distribution. At the same time, the excessive processing phenomenon of the existing peanut oil production process is prominent, resulting in the production of harmful substances, such as trans fatty acids, glycerin polymers and heavy metal pollution, etc., all of which constitute safety hazards in the process of edible oil processing

The excessive processing of peanut oil not only causes waste of resources and energy, aggravates environmental pollution, increases oil loss, but also causes a large loss of natural nutrients (such as vitamin E, phytosterols, etc.), seriously reducing the nutritional and safety quality of peanut oil