CN101289684A - Method for preparing modified corn porous starch by composite cross linkage - Google Patents
Method for preparing modified corn porous starch by composite cross linkage Download PDFInfo
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- CN101289684A CN101289684A CNA2008100647389A CN200810064738A CN101289684A CN 101289684 A CN101289684 A CN 101289684A CN A2008100647389 A CNA2008100647389 A CN A2008100647389A CN 200810064738 A CN200810064738 A CN 200810064738A CN 101289684 A CN101289684 A CN 101289684A
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Abstract
The invention aims to provide a new method for taking corn starch as raw material and obtaining corn multi-orifice starch through enzymolysis after compound cross linking modification, that is to say a preparing method for compound cross linking modification corn multi-orifice starch. The invention adopts the preparation process of a one-step continuous method; the compound enzyme with the proportion of alpha-amylase to maltogenic amyiase being one to eight serves as an enzymolysis agent to improve the structural stability, the water and oil absorption performance of the multi-orifice starch through compound modification; compared with the multi-orifice starch, the water absorption performance and the oil absorption performance of the compound cross linking multi-orifice starch are respectively improved by 25 percent and 66 percent. The invention relates to a plurality of application fields such as flavoring essence, pigment, probiotics, pesticide, fertilizer, agricultural chemicals, medicine, cosmetics, printing ink and paper pulp. The multi-orifice starch which is used to absorb a great variety of objects before direct use has the functions of releasing the objects slowly and protecting the objects.
Description
Technical field
The present invention relates to a kind of preparation method of composite modified starch, is exactly a kind of preparation method of modified corn porous starch by composite cross linkage specifically.
Technical background
Along with progress of science and technology, people promptly use methods such as physics, chemistry or enzyme according to starch structure and physico-chemical property exploitation starch denaturalization technology, ative starch is handled, make it have the character that is fit to certain special purpose, this process is called starch denaturalization, and its product is called modified starch.Abroad, modified starch belongs to high-tech fine chemical product, and its output has accounted for 20%～30% of starch ultimate production.Modified starch can be widely used in papermaking, food, weaving, washing composition and makeup, printing and dyeing, leather, and fields such as soil stabilization and environmental protection, thereby its market outlook are wide.
Composite modified starch is the novel modified starch of developing in recent years of a class, and composite modified starch means the starch derivative that starch is adopted two or more denaturation method and obtain.The starch products that adopts the complex denaturation method to obtain has multiple modified starch common advantage.Studies have shown that complex denaturation can improve the stability of starch to acid, heat and mechano-degradation, and aging when delaying to store.
Porous-starch is meant and adopts physics, mechanical means and biological method to make starch granules be formed a kind of novel modified starch of hole to inside by the surface, porous-starch can provide cheap industrial raw material for industries such as food, medical and health, agricultural, papermaking, printing, makeup, washing composition, tackiness agent as sorbent material, microcapsule core.Porous-starch research at present mainly concentrates on the Japan and the U.S., the domestic preparation and the research of performance thereof to porous-starch is deep not enough, therefore inquire into the optimal path and the processing parameter of porous-starch technology of preparing, improve the application performance of porous-starch, widen the main task that its range of application is a current research.
Summary of the invention
The object of the present invention is to provide a kind of physico-chemical property and application performance that improves porous-starch by composite crosslinking, widen its range of application, with the W-Gum is raw material, enzymolysis is the novel method of corn porous starch again after the composite crosslinking modification, just a kind of preparation method of modified corn porous starch by composite cross linkage.
The object of the present invention is achieved like this: with the starch milk of W-Gum raw material furnishing 40%, after mixing, regulate the pH10 of starch milk, the epoxy chloropropane that adds 0.3% (with respect to the mass ratio of starch), under 25 ℃ of temperature, react 2.5h, add 1.5% Trisodium trimetaphosphate again, after mixing, regulate the pH10.25 of starch milk, behind reaction 1.5h under 50 ℃ of temperature, regulate pH6.7, filter, wash, be drying to obtain the composite crosslinking starch of solid powdery; With pH5.0 citric acid-Sodium phosphate dibasic damping fluid composite crosslinking starch is adjusted to 20% starch emulsion, preheating 10min under 45 ℃ of temperature, add the prozyme 1.5% (with respect to the mass ratio of starch) that α-Dian Fenmei and saccharifying enzyme cooperate in 1: 8 ratio, stirring reaction 20h, take off enzyme, filter, washing, drying, get final product after the pulverizing composite crosslinking porous-starch product.
The present invention also comprises some features like this:
The present invention adopts one to go on foot continuous processing preparation technology; The ratio of α-Dian Fenmei, saccharifying enzyme is that 1: 8 prozyme is the enzymolysis agent, and the method by complex denaturation has improved the structural stability of porous-starch and suction, oil absorptiveness; Compare with porous-starch, the suction of composite crosslinking porous-starch, oil absorbency improve 25% and 66% respectively.
The preparation method's of a kind of modified corn porous starch by composite cross linkage of the present invention application relates to a plurality of Application Areass, as food flavour, pigment, probiotic bacterium, sterilant, chemical fertilizer, agricultural chemicals, medicine, makeup, printing ink, pulp.Adsorb all kinds of objects with porous-starch, directly use again, can reach the function of slow release and protection object.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
The present invention will be further described for example below.
(1) selection of linking agent:
Epoxy chloropropane, Trisodium trimetaphosphate
(2) give birth to diastatic screening
α-Dian Fenmei, the compound use of saccharifying enzyme
(3) preparation technology of composite crosslinking porous-starch: (technical process as shown in Figure 1)
The 20g W-Gum is adjusted to 40% starch milk, regulating pH is 10, add the 0.1ml epoxy chloropropane, under 25 ℃ of temperature, react 2.5h, add the 0.3g Trisodium trimetaphosphate, regulating the pH value is 10, reacts 1.5h under 50 ℃ of temperature, regulating the pH value is 6.7, and filtration, washing, drying are composite crosslinking starch; With 100ml pH5.0 citric acid-Sodium phosphate dibasic damping fluid composite crosslinking starch is adjusted to 20% starch emulsion, water-bath preheating 10min at 45 ℃, add prozyme (α-Dian Fenmei: 1.5% (with respect to the mass ratio of starch) saccharifying enzyme=1: 8), stirring reaction 20h, take off enzyme, filtration washing, get final product after the drying and crushing composite crosslinking porous-starch product.
The performance of modified corn porous starch by composite cross linkage is as shown in table 1:
Table 1
| Project | Modified corn porous starch by composite cross linkage | W-Gum | Porous-starch |
| (ml) amassed in sedimentation | 1.1 | ||
| Water-intake rate (g/g) | 1.62 | ?0.54 | ?1.3 |
| Oil absorbency (g/g) | 1.3 | ?0.38 | ?0.78 |
As shown in Table 1, by the composite crosslinking modification, the suction of modified corn porous starch by composite cross linkage, oil absorbency are higher than W-Gum, porous-starch.
Claims (2)
1. the preparation method of a modified corn porous starch by composite cross linkage, be a kind of physico-chemical property and application performance that improves porous-starch by composite crosslinking, widening its range of application, is raw material with the W-Gum, and enzymolysis is the novel method of corn porous starch again after the composite crosslinking modification;
The preparation method of a kind of modified corn porous starch by composite cross linkage of the present invention is achieved in that the starch milk with W-Gum raw material furnishing 40%, after mixing, regulate the pH10 of starch milk, the epoxy chloropropane that adds 0.3% (with respect to the mass ratio of starch), under 25 ℃ of temperature, react 2.5h, add 1.5% Trisodium trimetaphosphate again, after mixing, regulate the pH10.25 of starch milk, behind reaction 1.5h under 50 ℃ of temperature, regulate pH6.7, filter, wash, be drying to obtain the composite crosslinking starch of solid powdery; With pH5.0 citric acid-Sodium phosphate dibasic damping fluid composite crosslinking starch is adjusted to 20% starch emulsion, preheating 10min under 45 ℃ of temperature, add the prozyme 1.5% (with respect to the mass ratio of starch) that α-Dian Fenmei and saccharifying enzyme cooperate in 1: 8 ratio, stirring reaction 20h, take off enzyme, filter, washing, drying, get final product after the pulverizing composite crosslinking porous-starch product.
2. the preparation method of a kind of modified corn porous starch by composite cross linkage according to claim 1 adopts one to go on foot continuous processing preparation technology; The ratio of α-Dian Fenmei, saccharifying enzyme is that 1: 8 prozyme is the enzymolysis agent, and the method by complex denaturation improves the structural stability of porous-starch and suction, oil absorptiveness; Compare with porous-starch, the suction of modified corn porous starch by composite cross linkage, oil absorbency improve 25% and 66% respectively.
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| CN2008100647389A CN101289684B (en) | 2008-06-13 | 2008-06-13 | Method for preparing modified corn porous starch by composite cross linkage |
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| CN2008100647389A CN101289684B (en) | 2008-06-13 | 2008-06-13 | Method for preparing modified corn porous starch by composite cross linkage |
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| CN101289684A true CN101289684A (en) | 2008-10-22 |
| CN101289684B CN101289684B (en) | 2011-06-15 |
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| CN102276851A (en) * | 2011-08-22 | 2011-12-14 | 苏州高峰淀粉科技有限公司 | Method for preparing porous starch with emulsibility |
| CN103012607A (en) * | 2012-12-07 | 2013-04-03 | 天津大学 | Preparation method of porous dialdehyde starch with high urea adsorption |
| CN104263782A (en) * | 2014-08-19 | 2015-01-07 | 华南理工大学 | Drug excipient and preparation method thereof |
| CN105968218A (en) * | 2016-06-30 | 2016-09-28 | 陈灼 | Preparation method of modified starch |
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| CN109385454A (en) * | 2018-10-23 | 2019-02-26 | 东莞东美食品有限公司 | A kind of production method of esterified cross-linked porous starch |
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| CN102106514A (en) * | 2010-12-29 | 2011-06-29 | 哈尔滨商业大学 | Preparation method of powdery lycopene |
| CN102276851A (en) * | 2011-08-22 | 2011-12-14 | 苏州高峰淀粉科技有限公司 | Method for preparing porous starch with emulsibility |
| CN102276851B (en) * | 2011-08-22 | 2012-10-10 | 苏州高峰淀粉科技有限公司 | Method for preparing porous starch with emulsibility |
| CN103012607A (en) * | 2012-12-07 | 2013-04-03 | 天津大学 | Preparation method of porous dialdehyde starch with high urea adsorption |
| CN104263782A (en) * | 2014-08-19 | 2015-01-07 | 华南理工大学 | Drug excipient and preparation method thereof |
| CN104263782B (en) * | 2014-08-19 | 2017-04-05 | 华南理工大学 | A kind of drug excipient and preparation method thereof |
| CN105968218A (en) * | 2016-06-30 | 2016-09-28 | 陈灼 | Preparation method of modified starch |
| CN106400494A (en) * | 2016-08-31 | 2017-02-15 | 西达（无锡）生物科技有限公司 | Environmental protection type starch textile sizing gent and preparing method thereof |
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| CN109385454A (en) * | 2018-10-23 | 2019-02-26 | 东莞东美食品有限公司 | A kind of production method of esterified cross-linked porous starch |
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