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Liquid milk with fructose and milk power and preparation thereof

A lactulose and liquid milk technology, applied in dairy products, milk preparations, applications, etc., can solve the problems of unrecyclable resin, low yield of emulsified sugar, high cost, etc., prevent colorectal cancer, simple preparation method, and increase physical fitness Effect

Inactive Publication Date: 2006-08-16
徐跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet these inventions all are converted with the solution prepared by pure lactose, and will add a large amount of ion-exchange resins to terminate the reaction, the resin is destroyed and cannot be recovered, so the cost is high, and the yield of emulsified sugar is low, only about 15-45%, these Method is impractical for large-scale industrial operation

Method used

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  • Liquid milk with fructose and milk power and preparation thereof
  • Liquid milk with fructose and milk power and preparation thereof
  • Liquid milk with fructose and milk power and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation of embodiment 1 lactulose milk and milk powder

[0041] Concentrate 100 liters of skimmed milk containing 4.82 kg of lactose on a cross-flow ultrafiltration device with an ultrafiltration membrane with a molecular weight cut-off of 5,000 daltons, and then add 50 liters of water to obtain 100 liters of filtered milk. Liquid and 50 kg of concentrated milk. The filtrate contained 3.37 kg of lactose. The filtrate was vacuum concentrated to 4.5 kg, and the total solid content was about 75%. Dissolve 142 grams of sodium hydroxide in 710 milliliters of water, mix the sodium hydroxide solution and the concentrated solution evenly, heat to about 80°C, react for 30 minutes, cool at 25°C for 30 minutes, and filter to remove crystallized unreacted lactose. Add appropriate amount of water and 400 grams of Purolite's strong acid type (sulfonic acid group) cation exchange resin PCR 883 (or use electrodialysis), desalting to terminate the reaction, decolorization, and...

Embodiment 2

[0046] Embodiment 2: the preparation of lactulose milk and milk powder

[0047] Add 6.7 kg of 80°BX lactulose syrup to 100 liters of skim milk, containing 3.8 kg of lactulose. After mixing, add 400 ml of β-galactosidase Lactozym 3000L, incubate at 40°C for 1 hour to completely hydrolyze the remaining lactose, and then pasteurize or UHT to make low-fat lactose-free milk containing 3.7% lactulose . Continue to spray dry, can make 15 kilograms of low-fat lactose-free milk powder containing lactulose 26%.

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Abstract

A lactopectose liquid milk and its milk powder for preventing constipation, improving physique and taking care of intestinal health are prepared from the liquid milk through converting the lactose in liquid milk to lactopectose or adding lactopectose to the liquid milk while removing the residual lactopectose. It has high output rate of lactopectose.

Description

technical field [0001] The present invention relates to dairy products, in particular to lactulose liquid and milk powder and methods for their preparation. Background technique [0002] Lactose contained in milk is a disaccharide. Because the molecule is too large, it must be digested into smaller glucose and galactose in the small intestine before it can pass through the intestinal wall and enter the blood vessels to be absorbed. However, when the lactase in the small intestine fails to function, lactose will be fermented in the large intestine, and symptoms such as flatulence, abdominal pain, vomiting or stomach will appear within about half an hour to 2 hours, which is called lactose intolerance in medicine. There are probably three reasons for lactose intolerance, namely, congenital lack of lactase, reduction and disappearance of lactase during the development of children to adults, and reduction and disappearance of lactase due to certain diseases such as sprue. The i...

Claims

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Application Information

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IPC IPC(8): A23C9/152A23C9/18
Inventor 徐跃
Owner 徐跃
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