A method for concentrating bone extract with gradient series membranes

Abstract

The invention discloses a method for concentrating bone extract with gradient serial membranes, comprising: providing a microfiltration concentration system, the microfiltration concentration system includes a first circulation flow path with a ceramic membrane filter; The extract is concentrated by microfiltration circulation to obtain a microfiltration concentrate; a first-stage reverse osmosis concentration system is provided, and the first-stage reverse osmosis concentration system includes a second circulation flow path with a first-stage reverse osmosis membrane filter; using the second circulation flow path Concentrate the filtrate with a reverse osmosis cycle to obtain a concentrated liquid; provide a secondary reverse osmosis concentration system, the secondary reverse osmosis concentration system includes a third circulation flow path with a secondary reverse osmosis membrane filter; use the third circulation The flow path performs secondary reverse osmosis cycle concentration on the primary concentrated liquid to obtain the secondary concentrated liquid. The invention achieves the purpose of concentrating the bone extract under the condition of reducing energy consumption, and greatly reduces the loss of nutrition and flavor substances of the bone extract.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a method for concentrating bone extract with gradient serial membranes. Background technique [0002] my country produces about 12 million tons of edible livestock and poultry bones every year, accounting for about 30% of the world's output, equivalent to about 2 million tons of animal protein, which can meet the annual protein demand of 75 million people. Livestock and poultry bones are rich in nutrients such as protein, lipids, and minerals, and have high development value. [0003] The processing and utilization of bone products can realize the reuse of resources and increase 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, and improve the comprehensive benefits of meat processing enterp...

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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