Method of gradient in-series membrane concentration for bone extract liquid

Abstract

The invention discloses a method of gradient in-series membrane concentration for a bone extract liquid. A device for the method is provided with: a micro-filtering concentration system, which includes a first circulating flow path having a ceramic membrane filter, wherein the first circulating flow path is used for performing micro-filtration circulating concentration through the first circulating flow path to obtain a micro-filtered concentrate; a primary reverse osmosis concentrating system, which includes a second circulating flow path having a primary reverse osmosis membrane filter, wherein the second circulating flow path is used for performing primary reverse osmosis circulating concentration to the filtrate to prepare a primary concentrate; and a secondary reverse osmosis concentrating system, which includes a third circulating flow path having a secondary reverse osmosis membrane filter, wherein the third circulating flow path is used for performing secondary reverse osmosis circulating concentration to the primary concentrate to obtain a secondary concentrate. The method concentrates the bone extract liquid with reduction on energy consumption, and greatly reduces loss of nutrients and flavor substances in the bone extract liquid.

Description

Technical field [0001] The invention relates to the field of food processing, in particular to a method for concentrating bone extract with gradient series membranes. Background technique [0002] my country produces about 12 million tons of edible animal bones each year, accounting for about 30% of the world's output, equivalent to 2 million tons of animal protein, which can meet the annual protein demand of 75 million people. The bones of livestock and poultry are rich in protein, lipids, minerals and other nutrients, which have high development value. [0003] The processing and utilization of bone products can realize resource reuse and enhance the value of slaughter by-products. After deep processing of livestock and poultry bones, new, natural, green, and nutritious food additives can be developed to produce high-nutrition bone foods such as bone broth, bone element, and bone meal to improve the comprehensive benefits of meat processing enterprises. However, the entire extr...

AI Technical Summary

Problems solved by technology

However, the entire process of extraction, vacuum concentration, and blending in the traditional process requires coal to supply water steam for heating, which consumes a lot of energy.

Especially in the concentration section, it becomes a large energy consumer in the entire production line, accounting for more than 60% of the energy consumption of the entire production line, and the water vapor generated by a large amount of evaporation during the concentration process will take away the flavor substances of chicken bones, resulting in a decrease in quality

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