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Fresh milk with long preserving period and manufacturing apparatus thereof

A technology of production equipment and shelf life, applied in the direction of milk preparations, milk preservation, dairy products, etc., can solve problems such as undiscovered

Active Publication Date: 2008-05-21
BEIJING SANYUAN FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In the prior art, there is no method and equipment for sterilizing milk using gradient ceramic membrane microfiltration technology combined with low heat intensity sterilization technology

Method used

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  • Fresh milk with long preserving period and manufacturing apparatus thereof
  • Fresh milk with long preserving period and manufacturing apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Fresh raw milk (CFU=100,000 / ml) is pre-filtered, heated to 55°C, and subjected to centrifugal separation of cream, and the obtained skim milk enters the ceramic gradient membrane tangential flow microfiltration system at 55°C for microfiltration sterilization , the milk is sterilized (72°C, 15s), and finally cooled and aseptically filled. Aseptic filling after cooling can produce skim milk products with long shelf life.

Embodiment 2

[0033] Fresh raw milk (CFU=150,000 / ml) is pre-filtered, heated to 50°C, and the cream is centrifuged. The obtained skim milk enters the ceramic gradient membrane tangential flow microfiltration system at 50°C for microfiltration sterilization , the resulting cream is subjected to high temperature treatment (HTT) and filtered skim milk for fat standardization, the standardized milk is sterilized (95°C, 2s), homogenized, and finally cooled and aseptically filled. Aseptic filling after cooling can produce skim milk products with long shelf life.

Embodiment 3

[0035] Fresh raw milk (CFU=200,000 / ml) is pre-filtered, heated to 55°C, and subjected to centrifugal separation of cream, and the obtained skim milk enters the ceramic gradient membrane tangential flow microfiltration system at 55°C for microfiltration sterilization , The milk is sterilized after homogenization (95°C, 2s), and finally cooled and aseptically filled. Aseptic filling after cooling can produce skim milk products with long shelf life.

[0036] Effect of the present invention is as follows:

[0037] The filtration efficiency of the gradient ceramic membrane microfiltration system is better than that of the uniform ceramic membrane microfiltration system, and the utilization rate of the filtration area reaches 100%. Under the condition of outflow, the transmembrane pressure remains constant, and vice versa. At the same time, the introduction of reverse pulse technology can save a lot of power energy consumption.

[0038] The uniform ceramic membrane microfiltratio...

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Abstract

A fresh milk with long quality guarenteed period (30 days at 7 deg.C) is disclosed. Its productive apparatus is composed of centrifugal defatting unit, degerming microfilter, pasteurizer, aseptic pouring unit, ultrahigh-temp butter sterilizing unit, homogenizer, reverse pulse unit, and heat exchanger.

Description

【Technical field】 [0001] The invention relates to fresh milk with a long shelf life and its processing and production equipment, in particular to fresh milk with a long shelf life obtained by gradient membrane filtration and its production equipment. It belongs to the field of dairy processing and preservation. 【Background technique】 [0002] Milk is the most ideal natural food for various mammals to feed their young. It is rich in high-quality protein, milk fat, lactose and other nutrients, calcium, phosphorus, potassium and other minerals and multivitamins. In developed countries, milk and dairy products have become an important part of people's diet; my country's newly revised "Dietary Guidelines for Chinese Residents" clearly emphasizes "one cup of milk (250ml) per person per day", and WHO also puts the per capita consumption of dairy products It is listed as the main indicator to measure the living standard of people in a country. It can be seen that milk plays an impo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23C3/00A23C3/02A23C9/148
Inventor 陈历俊王辉丁玉振吕加平周伟明
Owner BEIJING SANYUAN FOOD
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