Combined type production technology for refining animal oil and fat

Abstract

The invention provides a combined type production technology for refining animal oil and fat. Through a combined type discontinuous vacuum drying and melting matched clean technology, edible animal oil which is good in color, fragrance and taste is produced, production processes of decoloration, deacidification and peculiar smell removal are omitted, exhausted gas is free from peculiar smell, the discharge amount of solid trash and waste water is reduced, the environment is protected, and the production cost is notably reduced.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a combined animal fat refining production process. Background technique [0002] Animal fats include cattle, pigs, and suet. They all have their own unique flavors and are irreplaceable by other vegetable oils. They are widely used in food processing and catering industries, such as hot pot bottoms, fried instant noodles, pastry crisping, and quick-freezing. Food, daily chemical industry soap, processing of soap soap base raw materials, extraction of glycerin, etc. For a long time, the oil refining process adopted by my country's animal oil production enterprises is the traditional dry refining or wet refining. During the processing and storage of raw material oil, due to air, temperature, light, moisture, metal ions and oil Affected by factors such as its own fatty acid composition, complex chemical changes will occur, resulting in oxidative rancidity of oils. The acid...

AI Technical Summary

Problems solved by technology

For a long time, the oil refining process adopted by my country's animal oil production enterprises is the traditional dry refining or wet refining. During the processing and storage of raw material oil, due to air, temperature, light, moisture, metal ions and oil Affected by factors such as its own fatty acid composition, complex chemical changes will occur, resulting in oxidative rancidity of oils. The acid value and peroxide value of oils are high and not suitable for direct consumption. The acid value of oils is an important indicator of oil quality. One, the high acid value not only deteriorates the flavor and quality of the oil, but also causes harm to human health

Dry refining is smelting under normal pressure, and the raw fat is in contact with the air for a long time. At high temperature, although the Maillard reaction can produce fat-flavored oil, it is dissipated quickly and easily produces oily acid. value, peroxide value exceeds the standard, and the emitted gas has a smell, which has a certain impact on the environment

Wet method vacuum smelting, because direct steam is used for smelting, the oil has a lighter color, but the oil has a high water content. If it is not treated in time, it is easy to cause oil rancidity, and the oil residue has a high water content and becomes a paste. At present, there is no suitable equipment for processing , direct discharge not only pollutes the environment, but also causes waste