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Method for preparing dietary fiber by extracting potato residues

A dietary fiber and potato technology, applied in the field of food additives, can solve the problems of polluting the environment and difficulty in using potato dregs, etc., and achieve the effects of reducing production costs, benefiting human health, and good physiological activity

Inactive Publication Date: 2010-12-15
黑龙江北大荒斯达奇生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a method for preparing dietary fiber by extracting potato dregs, which can solve the problems that potato dregs are difficult to use and pollute the environment

Method used

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  • Method for preparing dietary fiber by extracting potato residues

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specific Embodiment approach 1

[0011] Specific embodiment one: the method utilizing potato residues to extract and prepare dietary fiber in the present embodiment is carried out according to the following steps: one, 200 ~ 2000 μm fresh potato residues of particle size and pure water are mixed, and wherein fresh potato residues and The mass ratio of pure water is 1:3, then add in the homogenizer, carry out homogenization treatment 5min with 10000r / min speed, and obtain the potato pulp of grinding;

[0012] 2. Stir the potato pulp at a speed of 100~150 rpm, adjust the pH value to 8~8.5 with sodium carbonate or sodium hydroxide, then add food-grade protease, hydrolyze at 50~55°C for 3 hours, use 0.4~ 0.6MPa steam pressure, heat for 15-30min to fully gelatinize the raw material, then add high temperature resistant α-amylase, adjust the pH value to 5.8~6.2, hydrolyze at 90~95℃ for 0.5h (make the starch fully liquefied), Cool to 60°C, adjust the pH value to 4.0~4.5, then add α-1,4-glucose hydrolase, keep warm at...

specific Embodiment approach 2

[0032] Embodiment 2: This embodiment differs from Embodiment 1 in that: the food-grade protease described in step 2 is endo-protease or exo-protease. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0033] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in step 3, the drying temperature is 45° C., and the drying time is 3 hours. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a method for preparing dietary fiber by extracting potato residues, belongs to the field of food additives and solves the problems of difficult utilization and environmental pollution of fresh potato residues. Small potato blocks in the potato residues are grinded and crushed by using composite biological engineering technology, so that the potato fiber can be separated from other ingredients; protein and starch are removed by enzyme hydrolysis; pectin is dissolved out by acid hydrolysis; the potato pectin can be extracted by using liquid obtained by solid-liquid separation; and the potato dietary fiber can be extracted from the solid matters. In the method of the invention, the potato dietary fiber is extracted from the potato residues, so that the potato residues can be utilized and the environmental pollution can be reduced. The dietary fiber prepared by using the method has the functions of high water holding capacity, high expansibility, high physiological activity and the like, and can be used for a large number of foods, particularly development and utilization of low-sugar foods. Due to the non-special flavor and non-anaphylaxis, the potato dietary fiber can be more widely applied than soy dietary fiber.

Description

technical field [0001] The invention belongs to the field of food additives. Background technique [0002] Potato residue is a by-product produced during the production of refined potato starch. The water content of fresh potato residue is about 80-90%, and it has many bacteria, which is not easy to store and transport. It will produce stench after spoilage and cause environmental pollution; if it is dried, the cost will be too high, which will increase the burden on the enterprise, and it is usually treated as waste residue. bury. But mass burials can lead to contamination of soil and groundwater. Therefore, the development and utilization of potato residues has extremely important practical significance for potato and other potato starch industries. Contents of the invention [0003] The invention provides a method for preparing dietary fiber by extracting potato dregs, which can solve the problems that potato dregs are difficult to use and pollute the environment. T...

Claims

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Application Information

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IPC IPC(8): A23L1/28A23L33/21
Inventor 李智广姜海花高金波王丽丽徐明亮崔媛邹勤熙
Owner 黑龙江北大荒斯达奇生物科技有限公司
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