CN104886547B - A kind of beet dietary fiber decoloration preparation method - Google Patents
A kind of beet dietary fiber decoloration preparation method Download PDFInfo
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- CN104886547B CN104886547B CN201410077824.9A CN201410077824A CN104886547B CN 104886547 B CN104886547 B CN 104886547B CN 201410077824 A CN201410077824 A CN 201410077824A CN 104886547 B CN104886547 B CN 104886547B
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- beet pulp
- dietary fiber
- hydrogen peroxide
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Abstract
The present invention relates to a kind of beet dietary fibers and preparation method thereof, and in particular to one kind has preferable color, and the beet beet dietary fiber of more excellent powder size and preparation method thereof.Extracting method of the present invention has advanced optimized color, dietary fiber content, retentiveness and the holding oiliness for extracting obtained beet food fibre powder using decoloration pretreatment-drying-ultramicro grinding method.Especially suitable for the use of complementary diets fibre composition inexpensive in food industry, to improve sugar industry economic benefit, and preferable approach can be provided for the further comprehensive utilization of waste.
Description
Technical field
The present invention relates to the field of deep of the sugar beet dregs of rice, are specifically a kind of decolorations of beet dietary fiber, surpass
Crushing of Ultrafine preparation method and optimization, and in particular to it is a kind of with preferable color, compared with high dietary fiber content and functional characteristic
Beet dietary fiber and preparation method thereof.
Background technique
Dietary fiber mostlys come from the cell wall of plant, includes cellulose, hemicellulose, resin, pectin and lignin
Deng it can not be listed at present the seventh-largest nutrient needed by human by the intracorporal digestion enzyme hydrolysis of people, with higher
Nutritive value.Meanwhile dietary fiber has important work in terms of prevention and cure of cardiovascular disease, cancer, diabetes and Other diseases
With.Dietary fiber can not only clean alimentary canal and enhancing digestive function, dilution and accelerate the carcinogen and toxic in food
The removal of substance protects fragile alimentary canal and prevents colon cancer；Enough intakes of dietary fiber can also allow in blood
Blood glucose and cholesterol control are ideal horizontal.
Fiber content in beet pulp is about 80%, is the sufficient source of edible dietary fiber.Meals in beet pulp fiber
Food content is higher, and the other materials content such as starch is lower, is domestic and international universally recognized edible dietary fibre materials.With people
The continuous improvement of living standard, people increasingly focus on the quality and nutrition of food, the intake of high dietary-fiber based food by
The favor of consumer.This also greatly have stimulated research of the scientific worker to dietary fiber, but beet meal dietary fiber
Color it is deeper, if directly applying to food processing, can have a adverse impact to the aesthetic quality of product, which limits
Application of the beet meal dietary fiber in food.Therefore, decoloration research is carried out to beet dietary fiber to have great importance.
Hydrogen peroxide be it is a kind of be generally used without chlorine decolorising agent, if utilize hydrogen peroxide decompose generate hydroperoxy- yin
The oxidation of ion by change lignin chromophoric group structure, or makes lignin degradation and is dissolved out, reaches the effect of decoloration
Fruit.Hydrogen peroxide decoloration is the more common method of dietary fiber based food decoloration, not only easy to operate, significant effect, Er Qiecheng
This is lower.
Superfine communication technique is the new and high technology that developed recently gets up.Due to the particle very little of Ultramicro-powder, thus produce
Raw many distinctive micromeritics features：As medium active force is significantly reinforced, improved with the mixing uniformity of other materials,
Huge change has occurred in its dispersibility, inclusiveness, extensibility, adsorptivity, dissolubility, affinity, explosivity, thermal property etc.
Change.Therefore, many in chemical industry, metal, nonmetallic materials, medicine, bioengineering, food, military project, space flight, electronics and machinery etc.
Field is especially used widely in processing of farm products, brings a new situation to agricultural product intensive processing.Do not changing
In the case where molecular structure, the physical property of agricultural product is changed, quality is improved, developed more new products, expand agricultural product
Beet pulp after China Heilongjiangdistrict and Xinjiang region refine sugar at present, in addition to being used for feed industry on a small quantity, big portion
Divide no appropriate purposes, the economic benefit is not high, also creates environmental pollution and the waste of resource.The present invention is directed to produce it is a kind of compared with
Good organoleptic beet meal dietary fiber is decolourized not to be only to carry out using beet meal dietary fiber using beet pulp as raw material
Food processing provides foundation and technical support, also improves beet comprehensive utilization ratio and added value of product, to reducing environmental pollution
Also significant.
Summary of the invention
For this purpose, going forward side by side technical problem to be solved by the present invention lies in a kind of preparation method of beet dietary fiber is provided
And obtain it is a kind of with preferable color, compared with the beet dietary fiber of high dietary fiber content and functional characteristic.
In order to solve the above technical problems, of the invention is achieved by the following technical solution：
The present invention provides a kind of preparation methods of beet dietary fiber, comprise the steps of：
(1) dehydration sorting：Beet water silk after taking beet sugar manufacture is dehydrated, and sorting obtains beet pulp raw material；
(2) decolorization：It is uniformly mixed the beet pulp raw material to obtain feed liquid, hydrogen peroxide with aqueous hydrogen peroxide solution
Concentration of aqueous solution is 2%-5%；
(3) pH value is adjusted：The pH that strong base solution adjusts the feed liquid is 7-11, controls reaction temperature at 40-80 DEG C, decolourizes
Time 1-2.5 hour；
(4) it cleans：Feed liquid after reaction is cooled to 40 DEG C hereinafter, filtering out the liquid after reaction, and clean instead with clear water
Beet pulp raw material after answering；
(5) it dehydrates：It by the beet pulp raw material dehydration after cleaning, and is dried in air dry oven, obtains dry sweet tea
Rapeseed meal；
(6) it crushes：The dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Preferably, the extracting method, includes the following steps：
(1) dehydration sorting：Beet water silk after taking beet sugar manufacture is dehydrated, and sorting obtains beet pulp raw material；
(2) decolorization：It is uniformly mixed the beet pulp raw material to obtain feed liquid, hydrogen peroxide with aqueous hydrogen peroxide solution
Concentration of aqueous solution is 3%-5%；
(3) pH value is adjusted：The pH of the feed liquid is adjusted as 9-11 with strong base solution, is controlled reaction temperature at 50-80 DEG C, is taken off
The color time 1.5-2 hours；
(4) it cleans：Feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation, and with clear water cleaning reaction after
Beet pulp raw material；
(5) it dehydrates：By the beet pulp raw material dehydration after cleaning, and in air dry oven at a temperature of 90-120 DEG C
Drying obtains dry beet pulp；
(6) it crushes：The dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
In the step (2), the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 6 to 1: 12, and further
It is preferred that 1: 8 to 1: 10.
In the step (4), the process of the cleaning is the clear water with material 2 times or more volume, cleaning 2 times or more.
In the step (3), the strong base solution is sodium hydroxide solution, potassium hydroxide solution, calcium hydroxide, hydroxide
One of barium.
In the step (4), the method for the separation of solid and liquid includes suction filtration, filters pressing, diafiltration or centrifuge separation.
In the step (5), the temperature of the drying is preferably to 100-120 DEG C.
In the step (5), the time of the drying is 2-8 hours, and further preferably to 4-6 hours.
In the step (5), the method for the dehydration includes suction filtration, filters pressing, diafiltration or centrifuge separation.
The beet dietary fiber and the beet diet being prepared invention additionally discloses above-mentioned extracting method are fine
Wesy is in raw-food material and the purposes of products and health products additive agent.
The above technical solution of the present invention has the following advantages over the prior art：
1, beet dietary fiber extraction process of the present invention, it is main to be carried out by the way of hydrogenperoxide steam generator processing
It extracts, and in decolorization process, by way of the pH adjusting feed liquid is 3-11, controls reaction temperature at 20-80 DEG C, accelerate
The progress of decoloring reaction so that the pigment composition in beet pulp raw material is easier to oxidation removal, while hydrogen peroxide effect it is lower so that
Dietary fiber component is broken with the chemical bond in impurity component, and impurity component is in the process of cleaning by partial removal, into one
Step improves dietary fiber content, the Color whiteness for extracting obtained beet dietary fiber.
2, each step parameter of the extracting method is optimized in scheme of the present invention, further regulates and controls the pH
For 7-11, and adjust in the decolorization process, control reaction temperature at 40-70 DEG C, make within bleaching time 1-2.5 hour described in mention
The dietary fiber content of the beet dietary fiber obtained, Color whiteness further substantially transition；
3, the method for the invention is more suitable industrialized production, and beet dietary fiber has relatively high yield, answers
It is preferable with the beet dietary fiber retentiveness of the method for the present invention preparation, holding oiliness；
4, the beet dietary fiber that the method for the present invention is extracted as in food industry nutritional ingredient or water binding agent,
Holding finish and using has more good performance, to improve sugar industry economic benefit, and can be the further comprehensive of waste
It closes and the preferable approach of offer is provided.
Specific embodiment
Embodiment 1
Beet dietary fiber described in the present embodiment extracts as follows：
(1) the beet water silk after taking beet sugar manufacture is appropriate, is dehydrated, and sorting obtains beet pulp raw material；
(2) beet pulp raw material is uniformly mixed to obtain feed liquid with aqueous hydrogen peroxide solution, aqueous hydrogen peroxide solution concentration is
4%, the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 8；
(3) pH for adjusting the feed liquid with the sodium hydroxide solution of 1mol/L controls reaction temperature at 65 DEG C, decolourizes for 9
Time 2.5 hours；
(4) feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation using filters pressing mode, and with 2 times of material
The clear water of volume cleans 2 times；
(5) the beet pulp raw material after cleaning is dehydrated using filters pressing mode, and in air dry oven at a temperature of 90 DEG C
Drying 8 hours obtains dry beet pulp；
(6) dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Embodiment 2
Beet dietary fiber described in the present embodiment extracts as follows：
(1) the beet water silk after taking beet sugar manufacture is appropriate, is dehydrated, and sorting obtains beet pulp raw material；
(2) beet pulp raw material is uniformly mixed to obtain feed liquid with aqueous hydrogen peroxide solution, aqueous hydrogen peroxide solution concentration is
5%, the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 6；
(3) pH for adjusting the feed liquid with the sodium hydroxide solution of 1mol/L controls reaction temperature at 65 DEG C, decolourizes for 9
Time 1.5 hours；
(4) feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation using filters pressing mode, and with 2 times of material
The clear water of volume cleans 2 times；
(5) the beet pulp raw material after cleaning is dehydrated using filters pressing mode, and in air dry oven at a temperature of 110 DEG C
Drying 4 hours obtains dry beet pulp；
(6) dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Embodiment 3
Beet dietary fiber described in the present embodiment extracts as follows：
(1) the beet water silk after taking beet sugar manufacture is appropriate, is dehydrated, and sorting obtains beet pulp raw material；
(2) beet pulp raw material is uniformly mixed to obtain feed liquid with aqueous hydrogen peroxide solution, aqueous hydrogen peroxide solution concentration is
3%, the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 8；
(3) pH for adjusting the feed liquid with the sodium hydroxide solution of 1mol/L controls reaction temperature at 80 DEG C, decolourizes for 7
Time 1 hour；
(4) feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation using filters pressing mode, and with 2 times of material
The clear water of volume cleans 2 times；
(5) the beet pulp raw material after cleaning is dehydrated using filters pressing mode, and in air dry oven at a temperature of 100 DEG C
Drying 6 hours obtains dry beet pulp；
(6) dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Embodiment 4
Beet dietary fiber described in the present embodiment extracts as follows：
(1) the beet water silk after taking beet sugar manufacture is appropriate, is dehydrated, and sorting obtains beet pulp raw material；
(2) beet pulp raw material is uniformly mixed to obtain feed liquid with aqueous hydrogen peroxide solution, aqueous hydrogen peroxide solution concentration is
3%, the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 8；
(3) pH for adjusting the feed liquid with the sodium hydroxide solution of 1mol/L controls reaction temperature at 50 DEG C, decolourizes for 11
Time 1.5 hours；
(4) feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation using filters pressing mode, and with 2 times of material
The clear water of volume cleans 2 times；
(5) the beet pulp raw material after cleaning is dehydrated using filters pressing mode, and in air dry oven at a temperature of 90 DEG C
Drying 8 hours obtains dry beet pulp；
(6) dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Embodiment 5
Beet dietary fiber described in the present embodiment extracts as follows：
(1) the beet water silk after taking beet sugar manufacture is appropriate, is dehydrated, and sorting obtains beet pulp raw material；
(2) beet pulp raw material is uniformly mixed to obtain feed liquid with aqueous hydrogen peroxide solution, aqueous hydrogen peroxide solution concentration is
2%, the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1: 12；
(3) pH for adjusting the feed liquid with the sodium hydroxide solution of 1mol/L controls reaction temperature at 65 DEG C, decolourizes for 9
Time 2.5 hours；
(4) feed liquid after reaction is cooled to 40 DEG C hereinafter, be separated by solid-liquid separation using filters pressing mode, and with 2 times of material
The clear water of volume cleans 2 times；
(5) the beet pulp raw material after cleaning is dehydrated using filters pressing mode, and in air dry oven at a temperature of 120 DEG C
Drying 2 hours obtains dry beet pulp；
(6) dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
Effect example
Performance detection is carried out to the beet dietary fiber that extraction obtains, Testing index includes the whiteness of the dietary fiber
Value, fiber content, retentiveness and holding oiliness index.
Experimental group：The beet dietary fiber that embodiment 1-5 the method is prepared；
Control group：It is extracted according to scheme described in embodiment 4, difference, which is only that omit in step (3), " adjusts the feed liquid
PH be 11, control reaction temperature at 50 DEG C " the step of, and directly carry out decoloring reaction, obtained dietary fiber.
Measuring method and concept
Beet dietary fiber sample quality (sample 130 DEG C heat 2 hours) all in terms of no moisture, in the present invention program,
The measurement of dietary fiber is operated dietary fiber content in GB/T5009.88-2008 food according to national standards.
In the present invention program, the color of sample is characterized using whiteness value (Tint CIE), and using such as under type
Test：
Sample powder after drying takes 1g, is dissolved in 25mL deionized water, is dispersed with stirring uniformly and stands overnight.Test
It is measured using the quartz sample pool of 10mL using reflection mode using Hunter Lab UltraScan VIS color measurement instrument.
Each color sample measurement three times, obtains the L of sample, a, b, L*, a*, b* and whiteness value (Tint CIE D65/10), takes three
Characterization of the average value of secondary measurement as sample.Sample suspension stirs evenly before testing, and completes color as early as possible and survey
Amount.
The calculation method of whiteness is referring to ASTM E313 (American Society for Testing and
Materials), calculation is as follows：
- 650 (yn-y)=Tint CIE of Tint E313=Tx (xn-x)
Wherein x and y is the chromatic value of sample, and xn and yn are the chromatic value of CIE standard light source, and Tx value is design factor, can
It tables look-up acquisition.
Retentiveness test method：It takes 0.5g fiber powder to be placed in centrifuge tube, 20mL deionized water is added, in 4 DEG C of refrigerator-freezers
It places 24 hours, takes out later, be centrifuged 30 minutes (4300r/min, GL-20G-II, Town in Shanghai pavilion), discard at 2000g
Clear liquid, the food fibre powder after weighing water suction are saturated weight in wet base.
Calculation method：Retentiveness (g/g)=(fiber powder water saturation weight in wet base-fiber dried bean noodles weight)/fiber dried bean noodles weight
Test method：It takes 0.5g fiber powder to be placed in centrifuge tube, 10mL corn oil is added, after mixing at 2000g
It is centrifuged 30 minutes (4300r/min, GL-20G-II, Town in Shanghai pavilion), discards supernatant liquid, the food fibre powder after weighing oil suction is full
And weight in wet base.
Calculation method：Holding oiliness (g/g)=(fiber powder oil is saturated weight in wet base-fiber dried bean noodles weight)/fiber dried bean noodles weight
Oil to the whiteness value of experimental group 1-5 and control group dietary fiber, fiber content, retentiveness and is held using the above method
Property index, concrete outcome see the table below：
The above results are it is found that the dietary fiber content of the beet dietary fiber extracted using the method for the invention is had
It is improved, it is even more important that the color of the dietary fiber extracted, which has, to be greatly improved, and resulting dietary fiber function
Energy characteristic is more prominent.As it can be seen that the overall performance for the beet dietary fiber that extracting method of the present invention is prepared is more excellent
More, food and industrial application are more applicable for.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of extracting method of beet dietary fiber, which is characterized in that comprise the steps of：
(1) dehydration sorting：Beet water silk after taking beet sugar manufacture is dehydrated, and sorting obtains beet pulp raw material；
(2) decolorization：It is uniformly mixed the beet pulp raw material to obtain feed liquid with aqueous hydrogen peroxide solution, hydrogen peroxide is water-soluble
Liquid concentration is 2%-5%, and the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1:6 to 1:12；
(3) pH value is adjusted：The pH that strong base solution adjusts the feed liquid is 7-11, and control reaction temperature is at 40-80 DEG C, bleaching time
1-2.5 hour；
(4) it cleans：By the feed liquid after reaction be cooled to 40 DEG C hereinafter, filter out reaction after liquid, and with clear water cleaning reaction after
Beet pulp raw material；
(5) it dehydrates：It by the beet pulp raw material dehydration after cleaning, and is dried in air dry oven, obtains dry beet pulp；
(6) it crushes：The dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
2. extracting method according to claim 1, which is characterized in that include the following steps：
(1) dehydration sorting：Beet water silk after taking beet sugar manufacture is dehydrated, and sorting obtains beet pulp raw material；
(2) decolorization：It is uniformly mixed the beet pulp raw material to obtain feed liquid with aqueous hydrogen peroxide solution, hydrogen peroxide is water-soluble
Liquid concentration is 3%-5%, and the solid-liquid ratio of beet pulp raw material and aqueous hydrogen peroxide solution is 1:6 to 1:12；
(3) pH value is adjusted：The pH of the feed liquid is adjusted as 9-11 with strong base solution, controls reaction temperature at 50-80 DEG C, decoloration
Between 1.5-2 hours；
(4) it cleans：Feed liquid after reaction is cooled to 40 DEG C hereinafter, being separated by solid-liquid separation, and clean the sweet tea after reaction with clear water
Rapeseed meal raw material；
(5) it dehydrates：It is dried at a temperature of 90-120 DEG C by the beet pulp raw material dehydration after cleaning, and in air dry oven
It is dry, obtain dry beet pulp；
(6) it crushes：The dry beet pulp is subjected to ultramicro crushing treatment, obtains beet food fibre powder.
3. extracting method according to claim 1 or 2, it is characterised in that：
In the step (4), the process of the cleaning is the clear water with material 2 times or more volume, cleaning 2 times or more.
4. extracting method according to claim 1 or 2, it is characterised in that：In the step (3), the strong base solution is
One of sodium hydroxide solution, potassium hydroxide solution, calcium hydroxide, barium hydroxide.
5. extracting method according to claim 2, it is characterised in that：In the step (4), the method for the separation of solid and liquid
Including suction filtration, filters pressing, diafiltration or centrifuge separation.
6. extracting method according to claim 1 or 2, it is characterised in that：In the step (5), the time of the drying
It is 2-8 hours.
7. extracting method according to claim 1 or 2, it is characterised in that：In the step (5), the method for the dehydration
Including suction filtration, filters pressing, diafiltration or centrifuge separation.
8. the beet dietary fiber that -7 any extracting methods are prepared according to claim 1.
9. the purposes that beet dietary fiber according to any one of claims 8 is used to prepare raw-food material and products and health products additive agent.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1907095A (en) * | 2005-08-01 | 2007-02-07 | 章传华 | Diversified health food made from red beet pulp dietary fiber and its preparation method |
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2014
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1907095A (en) * | 2005-08-01 | 2007-02-07 | 章传华 | Diversified health food made from red beet pulp dietary fiber and its preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 甜菜废粕中膳食纤维的提取及其改性的研究;龚冉;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20041215(第04期);第33、35、39页 * |
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