Method for accurate extraction of sweet potato starch

A sweet potato starch, fine extraction technology, applied in the field of food processing, can solve the problems of long settling time, poor taste, low starch extraction rate, etc., achieve the effect of simplifying production procedures, reducing production costs and improving separation effect

Inactive Publication Date: 2015-09-30
GUIZHOU HUALI AGRI CHEM ENG
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some use artificial cleaning, which is bound to increase labor and labor intensity
In short, whether it is mechanical or manual cleaning, it takes a lot of manpower and material resources, which increases production costs.
Furthermore, when the traditional natural sedimentation method processes starch, the water consumption is large, the sedimentation time is long, the production cycle is long (about 24 hours), and the starch extraction rate is lower than 85%.
When settling, the separation effect of sweet potato starch and soil and other impurities is poor, resulting in low purity of sweet potato starch, poor whiteness, off-white, and poor taste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of fine extraction method of sweet potato starch, concrete steps are:

[0019] (1) Take 10 kg of unwashed sweet potato raw materials, crush them to obtain sweet potato pulp, put them into the tank, and then add them to the tank

[0020] 40 kg of water, fully stirred, filtered to obtain the filtrate.

[0021] (2) Take 1 kg of raw gypsum and grind it into fine powder, then dissolve it in water to make saturated gypsum water, and then add 0.1 kg of gypsum

[0022] Secondary extract, 0.1kg soybean oil, fully stirred evenly to obtain a mixed solution, set aside.

[0023] (3) Add the mixed solution prepared in step (2) into the filtrate prepared in step (1), the amount of the mixed solution is 0.1% of the weight of the filtrate, then fully stir, then leave to settle for 60 minutes, and the soil will settle In the bottom layer, there is sweet potato starch in the middle and water in the top layer.

[0024] (4) Take out the water in the upper layer, and manually take ...

Embodiment 2

[0027] A kind of fine extraction method of sweet potato starch, concrete steps are:

[0028] (1) Take 100 kg of unwashed sweet potato raw materials, crush them to obtain sweet potato pulp, put them into a pool, then add 300 kg of water to the pool, stir well, and filter to obtain the filtrate.

[0029] (2) Take 10 kg of raw gypsum and grind it into fine powder, then dissolve it in water to make saturated gypsum water, then add 1 kg of sweet potato leaf extract and 1 kg of soybean oil, stir well to obtain a mixed solution, and set aside.

[0030] (3) mixed solution is added in the filtrate, and the add-on of mixed solution is 0.1% of filtrate weight, fully stirs then, then after standing and settling for 50 minutes, earth is deposited in the lowermost layer, the center is sweet potato starch, and the uppermost layer is water.

[0031] (4) Take out the water in the upper layer, and manually take out the sweet potato starch.

[0032] (5) After taking the sweet potato starch, add...

Embodiment 3

[0037] A kind of fine extraction method of sweet potato starch, concrete steps are:

[0038] (1) Take 50 kg of unwashed sweet potato raw materials, crush them to obtain sweet potato pulp, put them into a pool, then add 250 kg of water into the pool, stir well, and filter to obtain the filtrate.

[0039] (2) Take 5 kg of raw gypsum and grind it into fine powder, then dissolve it in water to make saturated gypsum water, then add 0.5 kg of Eucommia ulmoides extract and 0.5 kg of soybean oil, stir well to obtain a mixed solution, and set aside.

[0040] (3) Add the mixed solution prepared in step (2) to the filtrate prepared in step (1), the amount of the mixed solution is 0.1% of the weight of the filtrate, then fully stir, then leave to settle for 40 minutes, and the soil will settle In the bottom layer, there is sweet potato starch in the middle and water in the top layer.

[0041] (4) Take out the water in the upper layer, manually take out the sweet potato starch, put the ex...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for accurate extraction of sweet potato starch. The method comprises the following steps: (1) crushing sweet potatoes directly without washing to obtain a sweet potato pulp; (2) diluting the sweet potato pulp with water at a weight ratio of the sweet potato pulp to the water of 1:(3-5), and then filtering to obtain filtrate; (3) adding a mixed solution containing abrasive powder of gypsum, a sweet potato leaf extract and soybean oil into the filtrate with the added amount of 0.1% of the weight of the filtrate, then stirring uniformly, wherein during the preparation of the mixed solution, the weight ratio of the abrasive powder of gypsum to the sweet potato leaf extract to the soybean oil is 10:1:1, the abrasive powder of gypsum is put dissolved in water at first to obtain saturated gypsum water, and then the sweet potato leaf extract and the soybean oil are added and are stirred uniformly to obtain the mixed solution; (4) after stirring uniformly, standing for deposition to ensure that the mud, the sweet potato starch and the water in the filtrate are separated into an upper layer, a middle layer and a lower layer; (5) evacuating the water at the upper layer, and taking out the sweet potato starch; (6) performing sun-drying or oven-drying on the sweet potato starch, and bagging.

Description

technical field [0001] The invention relates to food processing, in particular to a fine extraction method of sweet potato starch. Background technique [0002] The nutritional value of sweet potato is very high, it contains a variety of vitamins and trace elements, and is also rich in lysine. Regular consumption is conducive to balanced nutrition, so it has always been a favorite food for people. In the process of processing starch by traditional natural sedimentation method, sweet potatoes must be cleaned in advance before beating. Many manufacturers use mechanical cleaning, which requires adding sweet potato cleaning machines. Some use manual cleaning, which will inevitably increase labor and labor intensity. In a word, whether it is mechanical or manual cleaning, it will consume a lot of manpower and material resources, which will increase the production cost. Furthermore, when the traditional natural sedimentation method processes starch, the water consumption is lar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04
Inventor 胡秋云
Owner GUIZHOU HUALI AGRI CHEM ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap