Decolorizing agent capable of decreasing aflatoxin content in peanut oil

Abstract

The invention belongs to the technical field of decolorizing agents, and discloses a decolorizing agent capable of decreasing aflatoxin content in peanut oil. The decolorizing agent is prepared by the following processes: step (1), performing acid treatment and ultrasonic treatment; step (2), performing crushing and grinding; step (3), performing stirring and granulation; and step (4) performing drying and sintering. The decolorizing agent provided by the invention can effectively remove pigment and aflatoxin, can be used repeatedly, and saves costs for enterprises.

Description

technical field [0001] The invention belongs to the technical field of decolorizing agents, and in particular relates to a decolorizing agent capable of reducing the content of aflatoxin in peanut oil. Background technique [0002] The commonly used adsorbent in the peanut oil refining process is activated clay. Due to its large specific surface area and surface polarity, activated clay can remove pigments and other impurities dissolved in oil or dispersed in oil with colloidal particles, so it has been used in edible oils such as peanut oil, sunflower oil and rapeseed oil. Widely used in decolorization. However, activated clay is prone to side reactions during the decolorization process. The fatty acid double bond is isomerized to produce trans fatty acids, resulting in a decline in oil quality; The economic value of the product; there are also waste residues that pollute the environment, cannot be completely removed from the oil product, and there will be residues that c...

AI Technical Summary

Problems solved by technology

The method of using a decolorizing agent to remove aflatoxin is more commonly used activated clay, but it has many defects. The amount of activated clay is relatively large. If the amount is small, the expected decolorization effect will not be achieved, and the amount used is too much , it is easy to cause the peroxide value to increase, thereby increasing the clay flavor; when the activated clay is in contact with the oil, it is easy to cause a small amount of hydrolysis of the oil, resulting in an increase in the acid value of the oil after decolorization; the fuel consumption rate of the activated clay is high, and the activated clay usually contains 25% to 40% fat; food

[0004] Contamination of oil by aflatoxin is more and more common, but the adsorption and detoxification rate of aflatoxin in edible oil by activated clay is low

The existing technology has improved the decolorizing agent, such as "Ye Shengqun et al.: Effects of Edible Oil Adsorption and Decolorizing Agents on the Aflatoxin Content in Vegetable Oil", which verified that activated clay, attapulgite, zeolite, activated carbon and modified montmorillonite were used in In terms of the performance of removing aflatoxin, it has been found that the detoxification rate of the modified montmorillonite with the best effect is only 89%, and it is difficult to remove it from the oil, and there is a certain pollution to the oil

The Chinese invention patent "A Peanut Oil Extraction Method Effectively Removes Aflatoxin" discloses the technology of using enzymatic method to degrade aflatoxin. This method has good effect and good environmental protection performance, but the price of enzyme preparation is relatively expensive, which is easy to increase the burden on enterprises