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Production method for soluble starch

A production method and soluble technology, which is applied in the field of soluble starch production, can solve problems such as difficulty in grasping the degree of starch degradation and difficult centrifugation, and achieve the effects of improved reaction efficiency, good solubility, and simple reaction

Active Publication Date: 2014-01-15
HUZHOU ZHANWANG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these production processes generate a large amount of waste water, and at the same time, the degree of starch degradation is not easy to control. Excessive degradation often causes difficulties in centrifugation.

Method used

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  • Production method for soluble starch
  • Production method for soluble starch
  • Production method for soluble starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add cornstarch (bulk density 0.5-0.6g / cm2) into a 3000-liter enamel rotary vacuum dryer (equipped with circulating water heating jacket, thermometer, air inlet, air inlet, and vacuum gauge) 3 ) 800kg, heat the jacket with water at 60°C, evacuate to -0.09MPa, put in dry hydrogen chloride, stop putting in hydrogen chloride when the vacuum degree is -0.03Mpa, and calculate the amount of hydrogen chloride to be introduced as 160-400g. Heat and rotate at 60°C for 3 hours. Vacuum down to below -0.09Mpa and keep for 30 minutes, pass through ammonia gas to neutralize to pH6.0-7.5, continue vacuuming for about 30 minutes, pulverize to get finished products, and take samples for testing.

[0029] The blue color detected by the potassium iodide indicator indicates that the starch has been degraded, the hydrogen chloride is not excessive, and the obtained finished product is soluble. And if it turns red with potassium iodide indicator, it means excess hydrogen chloride.

[0030] ...

Embodiment 2

[0037] React 1000kg of potato starch with a water content of 8-15% and 0.2kg of dry hydrogen chloride in a fluidized bed reactor at a temperature of 10°C and a vacuum of -0.001MPa for 0.5h, and keep it warm for 0.3-0.8h to obtain acid-soluble starch. Then use potassium bicarbonate to neutralize the acid soluble starch to pH 6.0-7.5 to obtain neutral soluble starch, and finally pulverize to obtain the finished product.

Embodiment 3

[0039] First add 1000kg of cassava starch with a water content of 10-12% into the enamel reaction kettle, then vacuumize to -0.08~-0.095MPa, then feed 0.5kg of dry hydrogen chloride, and stop the drying when the vacuum degree is -0.005MPa React hydrogen chloride at 80°C for 5 hours, keep warm for 0.8 hours to obtain acid-soluble starch, then use sodium bicarbonate to neutralize the acid-soluble starch to pH 6.0-7.5, then vacuumize for 0.8 hours, and finally pulverize to obtain the finished product.

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Abstract

The invention relates to starch production, in particular to production method for soluble starch. The method comprises the steps of: leading starch with moisture content of 8-15% and dried hydrogen chloride to react in mass ratio of 1000 / 0.2-1.0 at temperature of 10-80 DEG C under closed environment with vacuum degree of minus 0.001-minus 0.1MPa, insulating for 0.3-0.8h to obtain acid soluble starch, neutralizing the acid soluble starch to pH 6.0-7.5 with weak-basicity substances to obtain soluble starch, and finally crushing to obtain the finished product. By adopting dried hydrogen chloride to mix with starch for degradation to prepare soluble starch, the method has the advantages that the degradation degree of the starch can be mastered through different ratios of hydrogen chloride and starch, and soluble starch of different properties and models can be generated as required; mixing is more even compared with preparation by adopting a wet method such as spraying hydrochloric acid, and the reaction efficiency is improved; centrifugation and drying are not needed, the reaction is simple, andhe reaction efficiency is further improved; and no waste water is generated, and production is environment-friendly.

Description

technical field [0001] The invention relates to starch production, in particular to a production method of soluble starch. Background technique [0002] Starch is a high polymer of glucose, also known as Gorgon powder in the catering industry, the general formula is (C 6 h 10 o 5 )n, hydrolyzed to the disaccharide stage to maltose, the chemical formula is (C12H22O11), after complete hydrolysis to obtain glucose, the chemical formula is (C 6 h 12 o 6 ). There are two types of starches, amylose and amylopectin. Starch is a nutrient stored in plants, stored in seeds and tubers, and the content of starch in all kinds of plants is relatively high. [0003] Soluble starch is a starch derivative obtained by treating starch with oxidants, acids, glycerin, enzymes or other methods. White or light yellow powder, tasteless and odorless. According to the definition of the national standard "GB / T 8887-2009 Starch Classification", soluble starch is a kind of "modified starch" → "...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B31/00
Inventor 刘光海王根龙
Owner HUZHOU ZHANWANG PHARMA
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