CN1279060C - Production technology of soluble high lipophili hydrophili micro capsule starch - Google Patents

Abstract

The present invention relates to a starch deep-processing technology, particularly to microcapsule starch production technology. The technology comprises: dodecaoctylenyl butanedioic acid anhydride of which the dosage is 3 to 8% of common microcapsule starch is added to starch slurry formed by mixing the common microcapsule starch with water so as to carry out cross-linking modification; ethanol is added to the obtained slurry, and a precipitate is obtained after evenly stirring and blending the ethanol and the slurry; the precipitate is filtered and cleaned; after the precipitated is dehydrated, dried, crushed and sieved, a finished product is obtained. The microcapsule starch has strong lipotropy and hydrophilicity. The present invention not only can embed materials containing high fat, but also can embed materials containing high moisture. The microcapsule starch has favorable water solubility and can be dissolved in water easily. The microcapsule starch can be even dissolved in cold water. The microcapsule starch has strong capability for resisting mechanical damage, so an embedded target object can have good stability.

Description

The production technique of easy molten high lipophilic, wetting ability micro-capsule starch

Technical field

The present invention relates to a kind of starch deep process technology, particularly a kind of production technique of micro-capsule starch.

Technical background

At present at food, medicine, daily use chemicals, printing, in the industries such as agricultural chemicals, the modified starch that is used for object absorption embedding has cyclodextrin, fat starch, medicament carrier microspheres and common micro-capsule starch etc. are several, cyclodextrin wherein, fat starch, its starch granules of modified starches such as medicament carrier microspheres does not have the hole, be by object is realized embedding to object from the mode of outside surface parcel, this kind embedding form is because by easy cracked the coming off of the integument of embedding object outside surface, so its anti-poor performance that jumps and separate, thereby make stable bad by the embedding object, and it is all not soluble in water.Common micro-capsule starch has many small holes in its starch granules, object absorption can be embedded in these holes, and embedded starch ball has stability preferably.Common micro-capsule starch can be divided into lipotropy, wetting ability and neutral three kinds by function, the common micro-capsule starch of lipotropy has stronger embedding ability to fatty high material, the common micro-capsule starch of wetting ability has stronger embedding ability to the high material of water content, and neutral common micro-capsule starch can only carry out embedding to fatty apolar substance low, that water content is few, and its common defective all is not soluble in water, and dispersiveness is also poor.

Summary of the invention

Technical problem to be solved by this invention provides a kind of production technique of micro-capsule starch, and make the micro-capsule starch of producing promptly have extremely strong lipotropy and have extremely strong wetting ability again, and soluble in water.

The easily production technique of molten high lipophilic, wetting ability micro-capsule starch of the present invention is:

A, the organic monoacid damping fluid of PH4～4.6 added give birth to starch and be made into 20～25% starch fluid;

B, with α-Dian Fenmei and saccharifying enzyme by in the organic monoacid damping fluid that is added in PH4～4.6 at 1: 4 after the mixed, filter, make prozyme liquid, this prozyme liquid of starch consumption 0.8～1% among the step a is mixed with the starch fluid that step a makes, do not stop to stir 12～18 hours, keep 40～46 ℃ of slurry temperatures, PH4～4.6;

C, step b gained slurries water cleaned after, remove moisture content and get wet starch;

D, with wet starch dehydrate to water content 8～14% dry starch, this dry starch is pulverized, cross 100 orders or 120 mesh sieves and get common micro-capsule starch;

E, get above-mentioned common micro-capsule starch water and mix that to be made into pH value be 9～9.8 30～38% starch fluid, the 12 octenyl Succinic anhydrieds that add common micro-capsule starch consumption 3～8%, and keep PH9～9.8, do not stop to stir that to transfer pH value after 10～13 hours be 4～5;

F, will step e gained slurries add behind the ethanol stirring and evenly mixing throw out, this throw out filtered cleans, pulverize, sieve after dehydrating finished product.

Micro-capsule starch with production technique preparation of the present invention, use electron microscope observation, its hole diameter is 1～5 micron, the hole volume accounts for 52% of micro-capsule starch cubic capacity, do commercial experiment with its embedding fish oil, Chinese prickly ash seed oil, record with liquid phase chromatography: oil absorbency 38%, embedding rate 99%.

Because having added 12 octenyl Succinic anhydrieds in its production technique carries out modification to the common micro-capsule starch of gained and handles, make and crosslinkedly between starch molecule have the lipophilic alkyl of long-chain and have hydrophilic carboxyl, thereby make this micro-capsule starch have extremely strong lipotropy and wetting ability, both can carry out embedding, can carry out embedding to the high material of water content again fatty high material; Because 12 octenyl Succinic anhydrieds can improve the solubleness of starch, thereby make this micro-capsule starch have better water solubility, soluble in water, even in cold water also solubilized; Because the 12 octenyl Succinic anhydrieds that add make crosslinkedly on the starch molecular structure have the lipophilic alkyl of long-chain and have hydrophilic carboxyl, and connect building bridge between the starch molecule, formation one is reticulated structure closely, have good anti-physical disturbance ability thereby make by the micro-capsule after the embedding success, stability might as well.

Embodiment

Now the easily production technique scheme of molten high lipophilic, wetting ability micro-capsule starch of the present invention is described in further detail with following embodiment.

Embodiment one: the production technique of easy molten high lipophilic, wetting ability corn micro-capsule starch

A, the acetate buffer solution of PH4 is added W-Gum be made into 20% starch fluid;

B, with α-Dian Fenmei and saccharifying enzyme by in the acetate buffer solution that is dissolved in PH4 at 1: 4 after the mixed, filter, make prozyme liquid, this prozyme liquid of W-Gum consumption 0.8% among the step a is mixed with the starch fluid that step a makes, timing during from mixing, do not stop to stir 12 hours, and keep 40～46 ℃ of slurry temperatures, PH4～4.6;

C, step b gained slurries are inserted in the filter bag, water cleans 3 times, isolates materials such as the ash that contains in the slurries, acid group, unhydrolysed Dian Fentang, and dries moisture content with whizzer and get wet starch;

D, wet starch is dehydrated with pneumatic drier, to water content be 10% dry starch, this dry starch is pulverized, cross 100 mesh sieves and get conventional corn micro-capsule starch;

E, above-mentioned conventional corn micro-capsule starch water mixed be made into starch fluid, and to transfer pH value with sodium hydroxide be 9.2, conventional corn micro-capsule starch content is 33% in this starch fluid, the 12 octenyl Succinic anhydrieds that add conventional corn micro-capsule starch consumption 5%, keep PH9.2 with sodium hydroxide, do not stop to stir after 10 hours that to adjust pH value with hydrochloric acid be 4.2;

F, will step e gained slurries add behind the ethanol stirring and evenly mixing throw out, this throw out is filtered, and water cleans 3 times, dry moisture content with whizzer and get wet corn micro-capsule starch, wet corn micro-capsule starch is dehydrated with pneumatic drier, to water content is 10% must do corn micro-capsule starch, should do corn micro-capsule starch and pulverize, and crosses 100 mesh sieves and promptly gets easily molten high lipophilic, wetting ability corn micro-capsule starch.

Embodiment two: the production technique of easy molten high lipophilic, wetting ability sweet potato micro-capsule starch

A, the citrate buffer solution of PH4.6 is added sweet potato starch be made into 25% sweet potato starch liquid;

B, with α-Dian Fenmei and saccharifying enzyme by in the citrate buffer solution that is dissolved in PH4.6 at 1: 4 after the mixed, filter, make prozyme liquid, this prozyme liquid of sweet potato starch consumption 1% among the step a is mixed with the starch fluid that step a makes, timing during from mixing, do not stop to stir 18 hours, and keep 40～46 ℃ of slurry temperatures, PH4～4.6;

C, step b gained slurries are inserted in the filter bag, water cleans 3 times, isolates materials such as the ash that contains in the slurries, acid group, unhydrolysed Dian Fentang, and dries moisture content with whizzer and get wet starch;

D, wet starch is dehydrated with pneumatic drier, to water content be 14% dry starch, this dry starch is pulverized, cross 120 mesh sieves and get common sweet potato micro-capsule starch;

E, above-mentioned common sweet potato micro-capsule starch water mixed be made into starch fluid, and to transfer pH value with sodium hydroxide be 9.5, common sweet potato micro-capsule starch content is 38% in this starch fluid, the 12 octenyl Succinic anhydrieds that add common sweet potato micro-capsule starch consumption 8%, keep PH9.5 with sodium hydroxide, do not stop to stir after 13 hours that to adjust pH value with hydrochloric acid be PH4.8;

F, will step e gained slurries add behind the ethanol stirring and evenly mixing throw out, this throw out is filtered, and water cleans 3 times, dry the moisture content sweet potato micro-capsule starch that must wet with whizzer, the sweet potato micro-capsule starch that will wet dehydrates with pneumatic drier, to water content is 14% must do sweet potato micro-capsule starch, should do sweet potato micro-capsule starch and pulverize, and crosses 120 mesh sieves and promptly gets easily molten high lipophilic, wetting ability sweet potato micro-capsule starch.

Claims (1)

1, a kind of easily production technique of molten high lipophilic, wetting ability micro-capsule starch is characterized in that:

A, the organic monoacid damping fluid of PH4～4.6 added give birth to starch and be made into 20～25% starch fluid;

B, with α-Dian Fenmei and saccharifying enzyme by in the organic monoacid damping fluid that is added in PH4～4.6 at 1: 4 after the mixed, filter, make prozyme liquid, this prozyme liquid of starch consumption 0.8～1% among the step a is mixed with the starch fluid that step a makes, do not stop to stir 12～18 hours, keep 40～46 ℃ of slurry temperatures, PH4～4.6;

C, step b gained slurries water cleaned after, remove moisture content and get wet starch;

D, with wet starch dehydrate to water content 8～14% dry starch, this dry starch is pulverized, cross 100 orders or 120 mesh sieves and get common micro-capsule starch;

E, get above-mentioned common micro-capsule starch water and mix that to be made into pH value be 9～9.8 30～38% starch fluid, the 12 octenyl Succinic anhydrieds that add common micro-capsule starch consumption 3～8%, and keep PH9～9.8, do not stop to stir that to transfer pH value after 10～13 hours be 4～5;

F, will step e gained slurries add behind the ethanol stirring and evenly mixing throw out, this throw out filtered cleans, pulverize, sieve after dehydrating finished product.