CN102286892A - Preparation method of microcrystalline cellulose for food thickening agents - Google Patents
Preparation method of microcrystalline cellulose for food thickening agents Download PDFInfo
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- CN102286892A CN102286892A CN2011102604708A CN201110260470A CN102286892A CN 102286892 A CN102286892 A CN 102286892A CN 2011102604708 A CN2011102604708 A CN 2011102604708A CN 201110260470 A CN201110260470 A CN 201110260470A CN 102286892 A CN102286892 A CN 102286892A
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- microcrystalline cellulose
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Abstract
The invention relates to a preparation method of microcrystalline cellulose for food thickening agents. The method comprises the following steps of: 1, hydrolysis; 2, centrifugal washing; 3, granulation; 4, baking; and 5, sieving and packing. The preparation method has the technical effects that in the preparation method, refined cotton and wood fiber with the hemicellulose content being 30 to 40 percent are proportioned according to a certain mixture ratio to become raw materials, low-concentration diluted hydrochloric acid is adopted for hydrolysis, the hydrolysis reaction time is shortened, and the microcrystalline cellulose is prepared. The microcrystalline cellulose prepared by the preparation method has the loose density being 0.25 to 0.35g/cm<3>, the water absorption performance is high, the viscosity after the water dissolution is high, the delamination does not occur, and a good thickening effect is realized.
Description
Technical field
The present invention relates to a kind of Preparation of microcrystalline cellulose method, relate in particular to a kind of food thickening agent Preparation of microcrystalline cellulose method.
Background technology
Food thickening agent is to improve the viscosity of food or form gel, thus change food physical behavior, give food thickness, suitable mouthfeel, and have emulsification, stable or make the material that is the suspended state effect concurrently.
Microcrystalline cellulose, therefore is widely used in the food, and in use is not subjected to PH, Temperature Influence because of nontoxic, nonirritant as the Purely natural vegetality cellulose, is desirable food thickening agent.But at present some drawbacks limit of plain edition microcrystalline cellulose its application in the food thickening agent industry, mainly be that plain edition microcrystalline cellulose water absorption rate is low, viscosity causes thickening effect poor inadequately.
Summary of the invention
The object of the present invention is to provide a kind of food thickening agent Preparation of microcrystalline cellulose method, the present invention is directed to the defective that water absorption rate is low, viscosity is low that the plain edition microcrystalline cellulose exists when using as food thickening agent and prior preparation method is improved, aim to provide the microcrystalline cellulose that a kind of suitable food thickening agent is used.
The present invention is achieved like this, and method step is:
1) hydrolysis: put the 1300Kg drinking water in reactor, open the technical hydrochloric acid measuring tank, it is 0.15-0.20mol/L that the input technical hydrochloric acid makes acidity, opens and is steam heated to 60-80 ℃, closes admission valve, start stirring, to be torn into the 40kg purified cotton of flakelet, average degree of polymerization is that 1301-1600 and 60kg hemicellulose level are that 30 ~ 40% xylon drops in the reactor, feed intake finish after, open steam valve and be warmed up to 100 ℃, reaction 8-10 minute is hydrolyzed under this temperature;
2) centrifuge washing: open the reactor bottom valve, blowing gets rid of material in centrifuge, after feed liquid dries, wash after the water pH value that flows out to the centrifuge delivery port is 6-7 with drinking water, stop to wash, continued centrifugal 10-15 minute, do not have direct current water to the centrifuge delivery port and flow out, can discharging;
3) granulate: the filter cake of drying send dry house to wait to dry by the fire after granulator 12 orders are granulated;
4) oven dry: baking material personnel should close all openings of all ebullated beds, and the power turn-on switch starts blower fan; Open the thermal source switch, heating; Room temperature to be mixed reaches 100 ℃ of beginning chargings, regulate air-valve, make the interior material of bed reach best fluidized state, regulate the thermal source switch, guarantee that the mixing chamber temperature is controlled at 100-120 ℃, 50-60 minute drying time, when material to be dried satisfied drying and requires, discharging, oven dry finished, stop earlier heating, room temperature to be mixed drops to 60-80 ℃, stop blower fan, the material in cleaning bed and the hopper.Close the turnover flitch;
5) packing of sieving: will send make-up room to be packaged after the dried material cooling.
Technique effect of the present invention is: this preparation method with purified cotton and hemicellulose level be 30 ~ 40% xylon to carry out certain proportioning be raw material, adopt the hydrolysis of low concentration watery hydrochloric acid, shorten hydrolysis time and make; Making the microcrystalline cellulose bulk density with the present invention is 0.25-0.35g/cm
3, the water imbibition height, water-soluble back viscosity is not stratified greatly, has good thickening power.
The specific embodiment
Non-limiting examples is described below:
Hydrolysis: put the 1300Kg drinking water in reactor, open the technical hydrochloric acid measuring tank, it is 0.15-0.20mol/L that the input technical hydrochloric acid makes acidity, open and be steam heated to 60-80 ℃, close admission valve, start stirring, with being torn into the 40kg purified cotton (average degree of polymerization is 1301 ~ 1600) of flakelet and 60kg hemicellulose level is that 30 ~ 40% xylon drops in the reactor, feed intake finish after, open steam valve and be warmed up to 100 ℃, under this temperature, be hydrolyzed the reaction 8-10 minute.
Centrifuge washing: open the reactor bottom valve, blowing gets rid of material in centrifuge.After feed liquid dries, wash after the water pH value that flows out to the centrifuge delivery port is 6-7, stop washing, continued centrifugal 10-15 minute, do not have the outflow of direct current water to the centrifuge delivery port with drinking water, can discharging.
Granulate: the filter cake of drying send dry house to wait to dry by the fire after granulator 12 orders are granulated.
Oven dry: baking material personnel should close all openings of all ebullated beds, and the power turn-on switch starts blower fan; Open the thermal source switch, heating; Room temperature to be mixed reaches 100 ℃ of beginning chargings, regulates air-valve, makes the interior material of bed reach best fluidized state.Regulate the thermal source switch, guarantee that the mixing chamber temperature is controlled at 100-120 ℃, 50-60 minute drying time.When material to be dried satisfies drying and requires, discharging.Oven dry finishes, stops earlier heating, room temperature to be mixed drops to 60-80 ℃, stops blower fan.Material in cleaning bed and the hopper.Close the turnover flitch.
The packing of sieving: will send make-up room to be packaged after the dried material cooling.
Claims (1)
1. food thickening agent Preparation of microcrystalline cellulose method is characterized in that method step is:
1) hydrolysis: put the 1300Kg drinking water in reactor, open the technical hydrochloric acid measuring tank, it is 0.15-0.20mol/L that the input technical hydrochloric acid makes acidity, opens and is steam heated to 60-80 ℃, closes admission valve, start stirring, to be torn into the 40kg purified cotton of flakelet, average degree of polymerization is that 1301-1600 and 60kg hemicellulose level are that 30 ~ 40% xylon drops in the reactor, feed intake finish after, open steam valve and be warmed up to 100 ℃, reaction 8-10 minute is hydrolyzed under this temperature;
2) centrifuge washing: open the reactor bottom valve, blowing gets rid of material in centrifuge, after feed liquid dries, wash after the water pH value that flows out to the centrifuge delivery port is 6-7 with drinking water, stop to wash, continued centrifugal 10-15 minute, do not have direct current water to the centrifuge delivery port and flow out, can discharging;
3) granulate: the filter cake of drying send dry house to wait to dry by the fire after granulator 12 orders are granulated;
4) oven dry: baking material personnel should close all openings of all ebullated beds, and the power turn-on switch starts blower fan; Open the thermal source switch, heating; Room temperature to be mixed reaches 100 ℃ of beginning chargings, regulate air-valve, make the interior material of bed reach best fluidized state, regulate the thermal source switch, guarantee that the mixing chamber temperature is controlled at 100-120 ℃, 50-60 minute drying time, when material to be dried satisfies drying and requires, discharging, oven dry finishes, stops earlier heating, room temperature to be mixed drops to 60-80 ℃, stop blower fan, the material in cleaning bed and the hopper is closed the turnover flitch;
5) packing of sieving: will send make-up room to be packaged after the dried material cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102604708A CN102286892A (en) | 2011-09-05 | 2011-09-05 | Preparation method of microcrystalline cellulose for food thickening agents |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102604708A CN102286892A (en) | 2011-09-05 | 2011-09-05 | Preparation method of microcrystalline cellulose for food thickening agents |
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| CN102286892A true CN102286892A (en) | 2011-12-21 |
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| CN2011102604708A Pending CN102286892A (en) | 2011-09-05 | 2011-09-05 | Preparation method of microcrystalline cellulose for food thickening agents |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106146675A (en) * | 2016-08-16 | 2016-11-23 | 河南正弘药用辅料有限公司 | A kind of microcrystalline Cellulose production technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2978446A (en) * | 1957-01-28 | 1961-04-04 | American Viscose Corp | Level-off d.p. cellulose products |
| CN1671743A (en) * | 2002-07-26 | 2005-09-21 | Fmc有限公司 | Production of microcrystalline cellulose |
| CN101368347A (en) * | 2008-09-12 | 2009-02-18 | 王跃成 | Technique for producing mlcrocrystalline cellulose by sulfated waste velveteen |
| CN101481424A (en) * | 2009-02-06 | 2009-07-15 | 北京大学 | Ultra-fine microcrystalline cellulose and preparation thereof |
-
2011
- 2011-09-05 CN CN2011102604708A patent/CN102286892A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2978446A (en) * | 1957-01-28 | 1961-04-04 | American Viscose Corp | Level-off d.p. cellulose products |
| CN1671743A (en) * | 2002-07-26 | 2005-09-21 | Fmc有限公司 | Production of microcrystalline cellulose |
| CN101368347A (en) * | 2008-09-12 | 2009-02-18 | 王跃成 | Technique for producing mlcrocrystalline cellulose by sulfated waste velveteen |
| CN101481424A (en) * | 2009-02-06 | 2009-07-15 | 北京大学 | Ultra-fine microcrystalline cellulose and preparation thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106146675A (en) * | 2016-08-16 | 2016-11-23 | 河南正弘药用辅料有限公司 | A kind of microcrystalline Cellulose production technology |
| CN106146675B (en) * | 2016-08-16 | 2019-01-18 | 河南正弘药用辅料有限公司 | A kind of microcrystalline cellulose production technology |
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Application publication date: 20111221 |