Low-temperature soybean peeling process

Abstract

The invention discloses a low-temperature soybean peeling process. The low-temperature soybean peeling process comprises the following steps of firstly, screening dry soybeans, removing stones, finelyselecting, pre-freezing the soybeans, putting the soybeans into a freezing tank, performing pre-freezing at the temperature of -20 to -16 DEG C for 50-70 minutes, putting the pre-frozen soybeans intosaline water at the temperature of 40-50 DEG C, and soaking for 2-3 hours at the constant temperature; conveying the soybeans into a drying tower, wherein steam of an air heater is started through ahot air supply fan or an induced draft fan of a drying section of the drying tower to heat air blown into the air supply fan, an adjusting air door of an air inlet of the air supply fan and the temperature of hot air are adjusted to control the moisture of the soybeans, and proper moisture content is achieved through drying treatment; conveying the soybeans with the temperature of about 60 DEG C into vacuum microwave equipment to be subjected to constant-temperature vacuum heating and hull breaking, and conveying the soybeans obtained after hull breaking to a vibrating screen to be subjected to vibrating screening, so that soybean hull separation is achieved. Soybeans can be effectively peeled, the complete rate of soybean kernels is high, and subsequent processing is facilitated.

Description

technical field [0001] The invention relates to the technical field of soybean processing, in particular to a soybean low-temperature peeling process. Background technique [0002] Soybean is one of the important food crops in China. It is cultivated all over China. It contains a lot of unsaturated fatty acids, various trace elements, vitamins and high-quality protein. It is a beneficial food for cardiovascular patients such as hypertension, arteriosclerosis and heart disease. Soybeans are most commonly used to make various soy products, extract soybean oil, brew soy sauce and extract protein. Bean dregs or soybeans ground into coarse powder are also commonly used in poultry feed. Due to the high oxalate content in soybean seed coats, soybeans are usually peeled first when processing soybeans to be more beneficial to human health. The integrity rate of soybean kernels in the soybean peeling method is low, and the peeling efficiency of soybeans is not high. [0003] Aiming ...

AI Technical Summary

Problems solved by technology

Bean dregs or soybeans ground into coarse powder are also commonly used in poultry feed. Due to the high oxalate content in soybean seed coats, soybeans are usually peeled first when processing soybeans to be more beneficial to human health. Soybean dehulling method The integrity rate of soybean kernel is low, and the dehulling efficiency of soybean is not high