CN1554666A - Simultaneously acid hydrolysis and esterizing modified composite modified starch and its preparing method and use - Google Patents
Simultaneously acid hydrolysis and esterizing modified composite modified starch and its preparing method and use Download PDFInfo
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- CN1554666A CN1554666A CNA2003101128038A CN200310112803A CN1554666A CN 1554666 A CN1554666 A CN 1554666A CN A2003101128038 A CNA2003101128038 A CN A2003101128038A CN 200310112803 A CN200310112803 A CN 200310112803A CN 1554666 A CN1554666 A CN 1554666A
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Abstract
The present invention prepares composite modified starch via simultaneous high temperature acid hydrolysis and esterification, and especially provides one kind of starch stearate with diet fiber function. The product has the properties of both esterified starch and acidolyzed starch, and may be used to replace fat substitute in producing low-fat vegetable butter, ice cream, etc. and to replace expensive acasia, propylene glycol alginate, etc. in producing microcapsule wall. The present invention has the advantages of organic combination of the two kinds of starch modifying methods, reaction in dry reactor, less environmental pollution, etc.
Description
Technical field
A kind of acidolysis and esterification modification composite modified starch and its production and application of carrying out simultaneously belongs to technical field of modified starch.
Background technology
Starch stearate belongs to a kind of longer chain fatty acid starch ester, and along with the introducing of the organic carbochain of hydrophobicity, the hydrophobicity of starch increases, and can be used as emulsifying agent, is applied in fields such as food, medicine, material, household chemicals.About the research of starch stearate, the work of abroad doing is more, particularly Japan.Mostly the preparation method is starch and stearic acid acyl chlorides reacted in organic solvent (as pyridine, dimethyl formamide etc.) and makes, and product is mainly used in makeup or degradable plastics.The domestic human hydrophily legal systems such as Cheng Fa of having only University Of Tianjin of appearing in the newspapers are equipped with starch stearate, are with K
2CO
3As catalyzer, water is made solvent, acidified starch and methyl stearate is carried out transesterification reaction makes.Starch adopted carry out acidolysis and esterification simultaneously and prepare composite modified starch, do not see pertinent data report at present.
Summary of the invention
The purpose of this invention is to provide a kind of acidolysis and esterification modification composite modified starch and its production and application of carrying out simultaneously, the present invention adopts dried preparation, and acidolysis and esterification are carried out simultaneously in this preparation technology, and product has numerous excellent specific properties.
Technical scheme of the present invention: a kind of acidolysis and esterification modification composite modified starch are to adopt the dry method method that the preparation method that starch carries out acidolysis, esterification sex change is simultaneously made, and make it have the characteristic of acidolysis, esterification modified starch simultaneously.
The described preparation method who carries out acidolysis and esterification modification composite modified starch simultaneously, be to be raw material with starch, esterifying agent is dissolved in the anhydrous hot ethanol of solvent, slowly join in the starch, constantly stir, add a certain amount of acid again, and constantly stir, the slurry that obtains is by the sieve granulating, oven drying at low temperature ethanol then, water transfer divides about massfraction to 20% and the about 24h of balance again, at high temperature carries out acidolysis, esterification simultaneously, makes acidolysis and esterification modification composite modified starch.
Starch material can be W-Gum, wheat starch, potato starch etc.
The used esterifying agent of esterification sex change can be a higher fatty acid, and as stearic acid, lauric acid, tetradecanoic acid, palmitinic acid, oleic acid, linolic acid, eicosanoic acid etc., the used solvent of dissolving esterifying agent can be a dehydrated alcohol.
The used acidolysis reagent of acidolysis sex change is hydrochloric acid or easy volatile acid such as acetic acid, formic acid.
Preparation technology's basic recipe:
Starch (butt meter) 100g
Esterifying agent 2-4g
Dehydrated alcohol 80-120ml
Hydrochloric acid (by HCl) 0.06-0.12g
Water 0-20ml
The principal reaction processing condition: esterifying agent is to adopt the method that slowly joins in the starch again after being dissolved in hot dehydrated alcohol earlier, and removing of etoh solvent is the method that adopts oven drying at low temperature, and the precipitation temperature is 30-50 ℃, precipitation time 1-3h; Acidolysis, esterification moisture content massfraction are controlled at 5-25%, and temperature of reaction is 120-160 ℃, and the reaction times is 2-5h, get product.The slow adding of esterifying agent is under agitation to carry out, and moisture is regulated and adopted the mode that water is slowly added also constantly to stir.
The described application of carrying out acidolysis and esterification modification composite modified starch simultaneously is mainly used in the emulsifying agent in the foodstuffs industry, is used for numerous products such as present Emulsion flavour, micro encapsulation product, also can be used as the fat substitute in the milk fat spread.
Beneficial effect of the present invention: the present invention is directed to the singularity requirement of food-processing, developed a kind of novel process and product innovation of modified starch targetedly to modified starch.Utilize the dry process reaction device that starch is carried out acidolysis, esterification sex change simultaneously, particularly prepared a kind of starch stearate with food fibre function, acidolysis and esterification are carried out simultaneously in this preparation technology.Product has numerous excellent specific properties, because the stearic acid group is introduced starch structure, makes starch molecule have parents' (hydrophilic, oleophylic) group, thereby certain emulsifying property is arranged, and adds acid hydrolysis, has suitably reduced the viscosity of starch.Because change of molecular structure has formed heavy dextrin (food fibre function), has certain health-care effect.The product of gained can be applied to Emulsion flavour, be used for numerous products such as micro encapsulation product as microcapsule wall material, the higher gum arabic of alternative present price, Protanal Ester SD-LB etc., also can be used for replacing the part grease in the plant butter, production low fat plant butter, ice-creams, salad dressing etc. still belong to the first at home and abroad.And reduced the emulsifying agent in the prescription, the consumption of stablizer, thereby reduced cost, good economic benefit has been arranged.This technology combines acidolysis and two kinds of denaturation methods of esterification, and utilizes the dry process reaction device to react, and the practicality of technological design science has improved reaction efficiency greatly, and is easy to implement, and environmental pollution is little.
Description of drawings
Fig. 1 carries out acidolysis and esterification modification composite modified starch preparation technology synoptic diagram simultaneously
Embodiment
Embodiment 1:
Take by weighing the 3g stearic acid, be dissolved in 80ml, in 70 ℃ of dehydrated alcohols, slowly join then in the 100g starch (butt), and constantly stir, add the hydrochloric acid 1ml of 2mol/L again, and constantly stir, by the sub-granulating of 10 mesh sieves, place 50 ℃, oven dry 1h, cooling, measure the moisture massfraction, re-adjustment moisture massfraction to 20%, and balance 24h, place 150 ℃ then, reaction 3h, cooling, pulverize, packing, hard ester acid-starch ester gets product.
Table 1: massfraction is that 1% ative starch and starch stearate starch paste emulsifying property compare
| Substitution value | 0 | ?0.0029 | ?0.0037 | ?0.0046 | ?0.0062 |
| Emulsifying property/% | 0 | ?18.6 | ?21.3 | ?24.5 | ?27.9 |
| Emulsifying stability/% | 0 | ?15.2 | ?18.5 | ?22.5 | ?26.5 |
Table 2: massfraction be 10% ative starch and starch stearate starch milk viscosity ratio
| Substitution value | ?0 | ?0.0027 | ?0.0046 | ?0.0056 | ?0.0068 | ?0.0069 |
| Viscosity/mPa.s | ?800 | ?140 | ?110 | ?30 | ?12 | ?7 |
Annotate: 90 ℃ are adopted NDJ-79 type rotational viscosimeter to measure its viscosity.
Embodiment 2
Take by weighing linolic acid as esterifying agent, all the other prescriptions and operational condition make finished product linolic acid starch ester with embodiment 1.
Claims (10)
1, a kind of acidolysis and esterification modification composite modified starch is characterized in that adopting the dry method method that the preparation method that starch carries out acidolysis, esterification sex change is simultaneously made, and make it have the characteristic of acidolysis, esterification modified starch simultaneously.
2, the preparation method of composite modified starch as claimed in claim 1, it is characterized in that with starch being raw material, the esterifying agent that will be dissolved in hot ethanol slowly joins in the starch, constantly stir, and add a certain amount of acid, constantly stir, the slurry that obtains is by the sieve granulating, low temperature desolventizing then, water transfer part and balance are more at high temperature carried out acidolysis, esterification is prepared from simultaneously.
3, preparation method according to claim 2 is characterized in that with W-Gum, wheat starch, potato starch be raw material.
4, preparation method according to claim 2 is characterized in that the acidolysis sex change, and acidolysis reagent is hydrochloric acid.
5, preparation method according to claim 2 is characterized in that the esterification sex change, and the esterifying agent higher fatty acid of use is: stearic acid, lauric acid, tetradecanoic acid, palmitinic acid, oleic acid, linolic acid, eicosanoic acid; The solvent that uses is dehydrated alcohol.
6, preparation method according to claim 2 is characterized in that pyroreaction moisture content massfraction is controlled at 5-25%.
7, preparation method according to claim 2 is characterized in that basic recipe is:
Starch (butt meter) 100g
Esterifying agent 2-4g
Dehydrated alcohol 80-120ml
Hydrochloric acid (by HCl) 0.06-0.12g
Water 0-20ml
8, preparation method according to claim 2 is characterized in that the principal reaction processing condition: the low temperature desolventizing temperature is 30-50 ℃, precipitation time 1-3h; Pyroreaction is controlled at 5%-25% for the moisture content massfraction, and temperature of reaction is 120-160 ℃, and the reaction times is 2-5h; The adding of esterifying agent and moisture content are regulated and are all under agitation carried out.
9, preparation method according to claim 2 is characterized in that adopting stearic acid to prepare a kind of starch stearate with food fibre function as esterifying agent.
10, the application of composite modified starch according to claim 1 is characterized in that being used for the emulsifying agent of foodstuffs industry, is used for Emulsion flavour, micro encapsulation product, also can be used as the fat substitute in the milk fat spread.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200310112803 CN1273490C (en) | 2003-12-26 | 2003-12-26 | Simultaneously acid hydrolysis and esterizing modified composite modified starch and its preparing method and use |
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| CN 200310112803 CN1273490C (en) | 2003-12-26 | 2003-12-26 | Simultaneously acid hydrolysis and esterizing modified composite modified starch and its preparing method and use |
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| CN1554666A true CN1554666A (en) | 2004-12-15 |
| CN1273490C CN1273490C (en) | 2006-09-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293159C (en) * | 2005-05-18 | 2007-01-03 | 江南大学 | Method for preparing starch glue for lumber |
| CN100334115C (en) * | 2005-10-12 | 2007-08-29 | 江南大学 | Process for preparing modified composite denatured starch by microwave acidiolysis and esterification |
| CN101891829A (en) * | 2010-07-08 | 2010-11-24 | 广西大学 | Acid hydrolysis modified starch and method for preparing same |
| CN104629694A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Drilling fluid foaming agent and preparation method thereof |
| CN108201532A (en) * | 2016-12-19 | 2018-06-26 | 湖南尔康制药股份有限公司 | A kind of preparation process of starch self-reinforced composite material for hard shell capsules articles for use |
| CN109097419A (en) * | 2018-07-17 | 2018-12-28 | 合肥工业大学 | The esterification process of starch in a kind of eutectic solvent |
-
2003
- 2003-12-26 CN CN 200310112803 patent/CN1273490C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293159C (en) * | 2005-05-18 | 2007-01-03 | 江南大学 | Method for preparing starch glue for lumber |
| CN100334115C (en) * | 2005-10-12 | 2007-08-29 | 江南大学 | Process for preparing modified composite denatured starch by microwave acidiolysis and esterification |
| CN101891829A (en) * | 2010-07-08 | 2010-11-24 | 广西大学 | Acid hydrolysis modified starch and method for preparing same |
| CN101891829B (en) * | 2010-07-08 | 2012-07-04 | 广西大学 | Acid hydrolysis modified starch and method for preparing same |
| CN104629694A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Drilling fluid foaming agent and preparation method thereof |
| CN108201532A (en) * | 2016-12-19 | 2018-06-26 | 湖南尔康制药股份有限公司 | A kind of preparation process of starch self-reinforced composite material for hard shell capsules articles for use |
| CN108201532B (en) * | 2016-12-19 | 2022-06-17 | 湖南尔康制药股份有限公司 | Preparation process of starch self-reinforced composite material for hard capsule articles |
| CN109097419A (en) * | 2018-07-17 | 2018-12-28 | 合肥工业大学 | The esterification process of starch in a kind of eutectic solvent |
| CN109097419B (en) * | 2018-07-17 | 2022-03-15 | 合肥工业大学 | Esterification method of starch in eutectic solvent |
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| CN1273490C (en) | 2006-09-06 |
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