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Acorn starch and preparation method thereof

A kind of technology of acorn starch and starch, applied in the field of acorn starch and its preparation, can solve the problems of poor comprehensive adsorption and desorption capacity, slow elution rate, etc., and achieve high starch content, less water consumption, and simple process Effect

Inactive Publication Date: 2016-04-06
HEILONGJIANG PROV FOREST PROD & SPECIALTY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional tannin removal method is a single macroporous resin method (DM301, NAK-II is commonly used in the literature), but its elution rate is slow, and its comprehensive adsorption and desorption capabilities are poor.

Method used

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  • Acorn starch and preparation method thereof
  • Acorn starch and preparation method thereof
  • Acorn starch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1, preparation acorn starch

[0055] according to figure 1 Process flow chart shown in the preparation of acorn starch, wherein, the flow chart of the first to third cycle is as follows figure 2 As shown, the specific steps are as follows:

[0056] (1) Water washing: Take 50kg of acorn kernels and wash off the dust adhering to them with distilled water, remove impurities and residual acorn shells, seed coats, etc.

[0057] (2) Soaking and the first cycle of impurity removal: put 50kg of dry acorn kernels into the extraction tank at a ratio of 1:5 (kg:L) to hot water at 40°C for 6 hours, and then carry out The first cycle of impurity removal (hot water cycle-composite resin process treatment), the specific steps are as follows:

[0058] The acorn kernels and soaked water are further stirred and extracted in the extraction tank, the water-soluble starch and impurities in the acorn kernels are extracted into the water, and after being filtered by the filter ...

Embodiment 2

[0074] Embodiment 2, preparation acorn starch

[0075] according to figure 1 Process flow chart shown in the preparation of acorn starch, wherein, the flow chart of the first to third cycle is as follows figure 2 As shown, the specific steps are as follows:

[0076] (1) Water washing: Take 50kg of acorn kernels and wash off the dust adhering to them with distilled water, remove impurities and residual acorn shells, seed coats, etc.

[0077] (2) Soaking and the first cycle of impurity removal: Add 50kg of dry acorn kernels to water in a mass-volume ratio (kg:L) of 1:10 and soak in hot water at 40°C for 4 hours in the extraction tank. Then carry out the first cycle of impurity removal (hot water cycle-composite resin process), the specific steps are as follows:

[0078] The acorn kernels and soaked water are further stirred and extracted in the extraction tank, the water-soluble starch and impurities in the acorn kernels are extracted into the water, and after being filtered...

Embodiment 3

[0094] Embodiment 3, the character of acorn starch and quality detection

[0095] (1) Granular morphology and starch content of acorn starch

[0096] Use SEM (KYKY-EM3900) to observe the acorn starch prepared in Example 1 and Example 2 at a magnification of 400-1000, and photograph a representative starch granule morphology, such as image 3 As shown, the morphology of starch granules in Example 1 and Example 2 is basically the same. The results showed that: acorn starch was oval or spherical, which was related to its amylose content.

[0097] Detect the quality starch and total starch content in the acorn starch that embodiment 1, 2 make, the result shows: the amylose content of acorn starch is respectively 29.78%, 29.66%, and total starch content is respectively 90.24%, 90.45%, the detection of amylose content is based on GB / T15683-2008, and the detection of total starch content is based on GB / T20378-2006.

[0098] (2) Solubility and swelling of acorn starch

[0099] Wei...

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Abstract

The invention discloses acorn starch and a preparation method thereof. The method comprises the following steps that 1, acorn kernels are soaked in water, primary circulating purification is conducted, suspension I is obtained, the liquid phase in the suspension I is liquid matter containing water-soluble starch, and the solid phase is the acorn kernels containing the water-insoluble starch; 2, primary smashing is conducted on the suspension I, secondary circulating purification is conducted on smashing products, and suspension II is obtained; 3, secondary smashing is conducted on the suspension II, third circulating purification is conducted on the smashing products, and suspension III is obtained, wherein circulating purification repeats the following steps that water-soluble starch and impurities in the acorn kernels in the suspension are extracted into the liquid phase, and adsorption and purification are conducted on the liquid phase; 4, the suspension III is centrifuged, sediment is taken, drying is conducted, and the acorn starch is obtained. According to the acorn starch and the preparation method thereof, water consumption is less, engineering is simple, and industrialization is easy; tannin is adsorbed through a composite resin method, enrichment and purification of the tannin are completed in one step, and a comprehensive utilization technology is provided for acorn kernel development.

Description

technical field [0001] The invention relates to acorn starch and a preparation method thereof. Background technique [0002] Acorn has long been known as "wood grain" and "wood corn" in our country. It is a good wild economic plant resource that can be developed and utilized in our country. my country can produce 1.0×10 acorns every year 7 t, only Yunnan Province can produce 1.0×10 5 t, Heilongjiang can produce 6.0×10 5 t. In the 1950s and 1960s, some areas of my country used acorn kernels as feed to feed pigs. However, untreated acorns contain 3% to 18% tannins, have poor palatability, and also contain toxic substance hydrocyanic acid. Feeding too much or not doing detoxification treatment will cause constipation or even poisoning death of animals. These unfavorable factors limit people's understanding and development of its usable value, greatly waste huge wild economic plant resources, and cause pollution to the natural environment. [0003] Acorn starch is current...

Claims

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Application Information

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IPC IPC(8): C08B30/04A23L29/30
CPCC08B30/04
Inventor 柴军红张学义何婷婷幺宏伟付亭亭韩书呈谢晨阳
Owner HEILONGJIANG PROV FOREST PROD & SPECIALTY RES INST
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