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Processing method of healthcare type instant maize germ milk powder

A technology of corn endosperm and corn germ, which is applied in food preparation, food forming, food science and other directions, can solve problems such as waste of resources and residues, and achieve the effects of increasing added value, improving water dispersibility, and improving embedding effect.

Active Publication Date: 2015-06-24
SHANDONG LUZHOU FOOD GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional process generally adopts wet degerming, and the obtained germ contains a large amount of sulfurous acid residues, and then extracts corn oil by leaching, which will cause sulfurous acid and solvent residues in the finished germ oil and germ meal, and the germ meal can only be used For feed production, a great waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0010] A preparation method of health-care instant corn germ milk powder, comprising steps as follows:

[0011] (1) Raw material pretreatment: screen, purify and clean the dry corn germ, add the clean corn germ to water 1.5-4 times the weight of the corn germ and soak for 4-6 hours, and keep the water temperature at 30-50°C during the soaking process;

[0012] (2) adding water to the soaked corn germ for beating, and simultaneously separating pulp and slag to obtain corn germ pulp;

[0013] (3) Adjust the pH value of the corn germ pulp prepared in step (2) to 5.0-7.0, heat up to 46-55° C., add phytase according to 0.05-0.1% of the weight of the corn germ pulp solids, and perform enzymatic hydrolysis for 0.5-1.5 hours , continue to heat up the obtained enzymolysis solution to 60-70° C., add amylase according to 0.1-0.4% of the weight of corn germ pulp solids, and perform enzymolysis for 1.5-3 hours to obtain enzymatic hydrolysis corn germ pulp;

[0014] (4) Micronize the enzym...

specific Embodiment approach

[0032] The present invention will be further described below in conjunction with the examples, but not limited thereto.

[0033] The source of raw material in the embodiment:

[0034] Phytase: purchased from Shanghai Tianteng Biotechnology Co., Ltd., model: 5000u / g.

[0035] Medium-temperature α-amylase, purchased from Shandong Longkete Enzyme Preparation Co., Ltd., model: 3000u / ml.

[0036] Both the colloid mill and the high-pressure homogenizer in the examples are commercially available.

Embodiment 1

[0038] A preparation method of health-care instant corn germ milk powder, comprising steps as follows:

[0039] (1) Raw material pretreatment: screen and purify the dry corn germ, wash the corn germ three times with clean water to remove impurities, and obtain clean corn germ. Add the clean corn germ to 2 times the weight of the corn germ and soak for 5 hours. The soaking process Keep the water temperature at 45°C;

[0040] (2) The maize germ soaked in step (2) is beaten with water according to the weight ratio of corn germ and water of 1:3, and the prepared corn germ pulp is passed through a 100-mesh sieve, and the pulp residue is separated at the same time to obtain the corn germ pulp ;

[0041] (3) The corn germ pulp obtained in step (2) is adjusted to a pH value of 6.0 with food-grade citric acid, heated to 50° C., added with phytase at 0.05% of the weight of the corn germ pulp solids, and enzymatically hydrolyzed for 1.5 hours to obtain Continue to heat up the enzymolys...

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PUM

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Abstract

The invention relates to a processing method of healthcare type instant maize germ milk powder. The processing method comprises the following steps of using dry-method degermed maize germs which are not subjected to oil pressing as raw materials; and performing pretreatment, beating, enzymolysis, micronization treatment, ultrasonic treatment, burdening, sterilization, homogenizing emulsification and spray drying on the raw materials to obtain the instant maize germ milk powder. Sodium caseinate and isomaltose hypgather IMO-900 serve as embedding wall materials; germ protein is modified ultrasonically and then serves as emulsifier; and the temperature is low during processing, so that all nutrition in the maize germ is kept. The healthcare type instant maize germ milk powder which is processed by the method is milky white, the protein content is greater than or equal to 10%, the fat content is greater than or equal to 25%, an embedding effect is improved, water dispersibility of products is improved, maize germ oil ingredients are not damaged, the healthcare type instant maize germ milk powder cannot be oxidized, and is uniform and stable milky liquid after being dissolved, a new way is provided for comprehensive utilization of maize resources, and the additional value of maize is improved.

Description

technical field [0001] The invention relates to a preparation method of health-care instant corn germ milk powder, which belongs to the technical field of corn deep processing and food processing. Background technique [0002] Corn is currently the cereal grain crop with the highest yield in the world. China is the second largest producer and consumer of corn after the United States. In 2014, the national corn output has reached more than 200 million tons, of which more than 50 million tons are used For deep processing of corn. [0003] Corn germ concentrates 84% ​​of the fat and 22% of the protein in the corn kernels, and also contains nutrients such as phospholipids, inositol phosphates, and peptides. Corn germ oil is rich in linoleic acid, linolenic acid, arachidonic acid, phytosterols, vitamins A, D, and E, and is one of the three healthy oils recommended by the World Health Organization. The essential amino acid content of corn germ protein is very high, which is in g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/172A23L1/09A23P1/06A23L29/30A23P10/47
Inventor 王德友赵玉斌牛纪超孔磊
Owner SHANDONG LUZHOU FOOD GROUP
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