CN102266065B - Potato insoluble dietary fiber and processing method thereof - Google Patents
Potato insoluble dietary fiber and processing method thereof Download PDFInfo
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Abstract
The invention discloses a potato insoluble dietary fiber and a processing method thereof, wherein the method comprises the following steps of: dispersing and dissolving fresh potato slags and grinding the slags; and then breaking the gel, washing, performing enzymolysis and drying to obtain the product. According to the method of the invention, the purity of the insoluble dietary fiber is improved; the energy consumption during production is greatly reduced; the viscosity and liquidity of the potato slags are particularly reduced after the gel is broken, so the solid and liquid separation effect is better; and further, the separation difficulty is reduced during industrial production. The insoluble dietary fiber prepared by the method of the invention, after testing, has the purity more than 70 percent, and the yield is 40-65 percent according to dry basis.
Description
Technical field
The present invention relates to a kind of insoluble diedairy fiber and processing method thereof, particularly a kind of potato insoluble diedairy fiber and processing method thereof.
Background technology
Dietary fiber be a kind ofly be difficult for being absorbed by the body, based on the general name of the macromolecular substances of polysaccharide, comprise materials such as vegetable matter lignin, cellulose, hemicellulose, pectin, collagen and a spot of wax, cutin, polyphenol ester, be called by nutrition educational circles " the seventh-largest nutrient ".
Can be divided into two fundamental types according to the character that is dissolved in water: water-soluble dietary fiber and water insoluble dietary fiber, water-soluble mainly being present in oat, beans, fruit, seaweeds and some vegetables, water-soluble fibre can slow down digestion rate and rapid drainage cholesterol, help to regulate function of immune system, promote the discharge of toxic heavy metal in the body, so can allow blood sugar in the blood and cholesterol control on optimal level, can also help the diabetic to improve insulin level and triglyceride; Water insoluble dietary fiber mainly is present in full cereal products such as wheat bran, vegetables and the nut, non-soluble fiber can reduce the risk of suffering from intestinal cancer, can prevent constipation and diverticulitis via noxious material in assimilating food simultaneously, and lower the toxin that bacterium is discharged in the alimentary canal.
Potato residues is the high-moisture accessory substance that produces in the farina production process, the contents on dry basis of dietary fiber can reach 17%-20%, all the other main components are materials such as protein, remaining starch granules, pectin, are the natural quality raw materials of producing dietary fiber.China produces about 7,000 ten thousand tons of potatos at present per year, and the output that can be used for processing is about about ten thousand tons of 500-700, occupies the second place of the world.And it is comparatively backward in the deep processing of China's potato residue, especially do not carry out as yet for the industrialization of potato dietary fiber, research mainly is in laboratory's stage mostly, therefore with potato as a kind of safe, cheap dietary fiber resource, both can reduce the production cost of farina, also can solve the outlet of high-moisture potato slag.
Summary of the invention
The objective of the invention is to disclose a kind of potato insoluble diedairy fiber, the present invention also aims to disclose a kind of processing method of potato insoluble diedairy fiber.
The present invention seeks to realize by the following method.
Potato insoluble diedairy fiber of the present invention is processed by the following method: bright potato slag is carried out molten loosing and pulverizing, break glue, washing, enzymolysis, drying afterwards again, namely.
Described bright potato slag can carry out coming into operation after the Preservation Treatment again, and Preservation Treatment can adopt following method: bright potato slag is joined in the food-grade hydrogen peroxide of mass concentration 0.5～3%, mix, fully place after the exhaust.
Describedly moltenly loose and pulverize and to adopt following method: get the fresh potato slag, add the water of 0.8～6 times of its quality, fully stir and form potato slag charge slurry; Be 150～200 orders with potato slag charge slurry with colloid mill circular grinding to potato slag particle degree then; Described potato slag is the potato slag of bright potato slag or antistaling storing.The water that its quality of the present invention is 0.8～6 times refers to that every 1kg potato residues adds the water of 0.8～6kg, by that analogy, and down together.
Described broken glue can adopt following method: add alkaline pectase or the pectin lyase of potato slag amount 0.5 ‰～2 ‰ under the normal temperature condition, regulate pH to 7.5～9.5, reacted 0.5～3 hour.Quality 0.5 ‰～2 ‰ are to calculate with the weight of potato slag in the potato slag of the present invention, namely 0.5 ‰ of potato slag dry matter weight～2 ‰, by that analogy, down with.
For making the potato slag obtain better purifying and dehydrating effect, the potato slag that breaks glue can be milled to potato slag particle degree after colloid mill is the 150-200 order, descends the step operation again.
Described washing can be adopted following method: add 2～4 times of water of its quality in the potato slag, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 2～5 times.
Described enzymolysis can adopt following method: the potato slag is dissolved in 2～4 times of water of its quality, add the AMS of potato slag amount 1 ‰～3 ‰, the protease of potato slag amount 1 ‰～3 ‰, in 40～60 ℃ of hydrolysis 0.5～2 hour, the carbohydrase that adds potato slag amount 1 ‰～3 ‰ then, in 40～55 ℃ of saccharification 0.5～2 hour, the dehydration of screw mud extruder was again with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag, get potato slag behind the enzymolysis.
Described drying can adopt methods such as centrifugal spray drying, expansion drying or hollow blade drying.
When adopting centrifugal spray drying, potato slag behind the enzymolysis can be dissolved in the water of 2～5 times of its quality, spray-drying makes product moisture content in 5% again, and the spray-drying parameter is: 160～240 ℃ of inlet temperatures, 70～90 ℃ of outlet temperatures.
Potato insoluble diedairy fiber of the present invention is preferably processed by following method:
(1) fresh potato residue, the concentration according to 1% adds the food-grade hydrogen peroxide, places 2 days, fully discharges gas, adds 5 times of water then, forms potato slag charge slurry, and it is 150 orders that the potato slag charge is starched with colloid mill circular grinding to potato slag particle degree.
(2) in potato slag charge slurry, add 1 times of water, regulate pH to 8.5, add 2 ‰ alkaline pectase under the normal temperature condition, reacted 2 hours, cross colloid mill and be milled to 150 orders.
(3) in the potato slag, add 4 times of water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 2 times, collect the potato slag.
(4) the potato slag is dissolved in 4 times of water, add the AMS of potato slag amount 1 ‰, the protease of potato slag amount 1 ‰, in 55 ℃ of hydrolysis 0.5 hour, the carbohydrase that adds potato slag amount 1 ‰ then, in 55 ℃ of saccharification 1.5 hours, the dehydration of spiral sludge dewatering equipment was again with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag, get potato slag behind the enzymolysis.
(5) potato slag behind the enzymolysis is dissolved in 3 times of water, carries out centrifugal spray drying, 160 ℃ of inlet temperatures, 90 ℃ of outlet temperatures obtain product.
The potato insoluble diedairy fiber of the present invention's preparation, after testing, purity can reach more than 70%, and productive rate is 40～65% (in butts).
The present invention's advantage compared with prior art is:
1, the present invention is raw material with the fresh potato slag, with the food-grade hydrogen peroxide raw material is handled, and has effectively prevented the brown stain of potato slag, suppresses growth of microorganism, makes the easier storage of fresh potato slag, plays the effect of decolouring bleaching simultaneously.
2, the present invention is raw material with the fresh potato slag, adopting wet method to pulverize handles, the degree of polymerization of insoluble diedairy fiber is reduced, impurity such as the starch that is wrapped up, albumen fully discharge, re-use the mode of amylase, protease and Glucoamylase hydrolysis, remove residual starch and protein in the potato slag, thereby reach the purpose that is removed, improved the purity of insoluble diedairy fiber, reduced the production difficulty, after testing, the insoluble diedairy fiber content of the inventive method preparation can reach more than 70%.
3, the present invention adopts screw mud extruder that bright potato slag is carried out processed, and plays effect centrifugal, that separate at enzymolysis with washing, greatly reduces energy consumption; In the liquid that separates, continue to adopt horizontal spiral centrifuge, disk plate centrifuge to separate, improve the rate of recovery of product; Three kinds of centrifugation are used, and are energy-saving and cost-reducing.
4, the present invention has carried out broken glue processing with alkaline pectase and pectin lyase to the potato slag with the potato slag, select suitable alkaline pectase or pectin wall breaking enzyme, decompose the very high pectin cell membrane of viscosity, reduce viscosity and the flowability of potato slag, make and the better effects if of Separation of Solid and Liquid reduced the separating difficulty in the industrial production, do not break glue and can't finish centrifugal spray drying, and the viscosity of material reduces, and more is conducive to the carrying out of flash distillation and hollow blade drying.
Following experimental example and embodiment are used for further specifying but are not limited to the present invention.
Experimental example 1 the present invention adopts screw mud extruder and horizontal spiral dewaterer, belt dewaterer drying effect and the contrast of power consumption data:
In bright potato slag, add 0.5%～3% food-grade hydrogen peroxide, fully mixing to place made the gas that produces discharge in 2～3 days, the water that adds 0.8～6 times of its quality, form potato slag charge slurry, be 150～200 orders with potato slag charge slurry with colloid mill circular grinding to potato slag particle degree then, regulate pH to 7.5-9.5 afterwards, add alkaline pectase or the pectin lyase of potato slag amount 0.5 ‰～2 ‰ under the normal temperature condition, reacted 0.5～3 hour.
Use screw mud extruder, horizontal spiral dewaterer, belt dewaterer to the processed of potato slag slurry respectively, after testing, bright potato slag water content is that the result is as shown in table 1, the equal in quality material, handle through three kinds of centrifugation apparatus, spiral sludge dewatering equipment energy consumption is low, and dehydrating effect is good.
The drying effect of three kinds of centrifugation apparatus of table 1 and the contrast of power consumption data
Experimental example 2 the present invention add the variation contrast of material viscosity behind alkaline pectase, the pectin wall breaking enzyme:
A technology adds 0.5%～3% food-grade hydrogen peroxide in bright potato slag, fully mixing to place made the gas that produces discharge in 2～3 days, the water that adds 0.8～6 times of its quality, form potato slag charge slurry, be 150～200 orders with potato slag charge slurry with colloid mill circular grinding to potato slag particle degree then, with the spiral sludge dewatering equipment potato slag slurry is washed again, dewater 2～3 times, the AMS that adds potato slag amount 1 ‰～3 ‰ then, the protease of potato slag amount 1 ‰～3 ‰, in 40～60 ℃ of hydrolysis 0.5～2 hour, the carbohydrase that adds potato slag amount 1 ‰～3 ‰ then, in 40～55 ℃ of saccharification 0.5～2 hour, centrifugal, get enzymolysis product.
B technology adds 0.5%～3% food-grade hydrogen peroxide in bright potato slag, fully mixing to place made the gas that produces discharge in 2～3 days, the water that adds 0.8～6 times of its quality, form potato slag charge slurry, be 150～200 orders with potato slag charge slurry with colloid mill circular grinding to potato slag particle degree then, regulate pH to 7.5-9.5 afterwards, the alkaline pectase or the pectin lyase that add potato slag amount 0.5 ‰-2 ‰ under the normal temperature condition, reacted 0.5～3 hour, with the spiral sludge dewatering equipment potato slag slurry is washed again, dewater 2～3 times, the AMS that adds potato slag amount 1 ‰～3 ‰ then, the protease of potato slag amount 1 ‰～3 ‰, in 40～60 ℃ of hydrolysis 0.5～2 hour, add the carbohydrase of potato slag amount 1 ‰～3 ‰ then, in 40～55 ℃ of saccharification 0.5～2 hour, centrifugal, get enzymolysis product.
Through the material after A technology and the B technology, use viscometer determining viscosity, result such as table 2, the material viscosity of handling through broken glue reduces greatly.
The broken glue of table 2 is to the influence of material viscosity
Following embodiment all can realize the described effect of above-mentioned experimental example.
The specific embodiment
Embodiment 1: centrifugal spray drying processing potato dietary fiber
(2) fresh potato residue 500kg adds 5kg food-grade hydrogen peroxide, places 2 days, fully discharges gas, adds 2500kg water then, stirs and forms potato slag charge slurry, and it is 150 orders that the potato slag charge is starched with colloid mill circular grinding to potato slag particle degree.
(2) regulate pH to 8.5, add the 100g alkaline pectase under the normal temperature condition, reacted 2 hours, cross colloid mill and be milled to 150 orders, centrifugal, collect the potato slag.
(3) in the potato slag, add 2000kg water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 2 times, collect the potato slag.
(4) the potato slag is dissolved in the 1600kg water, add 50g AMS, 50g protease, in 55 ℃ of hydrolysis 0.5 hour, add the 50g carbohydrase then, in 55 ℃ of saccharification 1.5 hours, the dehydration of spiral sludge dewatering equipment was again with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag, get potato slag behind the enzymolysis.
(5) potato slag behind the enzymolysis is dissolved in the 1200kg water, carries out centrifugal spray drying, 160 ℃ of inlet temperatures, 90 ℃ of outlet temperatures obtain product 22.5kg.
Embodiment 2: expansion drying processing potato dietary fiber
(1) fresh potato residue 500kg adds 5kg food-grade hydrogen peroxide, places 2 days, fully discharges gas, adds 2000kg water then, forms potato slag charge slurry, and it is 200 orders that the potato slag charge is starched with colloid mill circular grinding to potato slag particle degree.
(2) regulate pH to 9.5, add the pectin wall breaking enzyme of 50g under the normal temperature condition, reacted 1 hour, cross colloid mill and be milled to 180 orders, centrifugal, collect the potato slag.
(3) in the potato slag, add 1200kg water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 3 times, collect the potato slag.
(4) the potato slag is dissolved in the 1600kg water, add potato slag amount 100g AMS, 100g protease, in 45 ℃ of hydrolysis 2 hours, add the 200g carbohydrase then, in 45 ℃ of saccharification 2 hours, the dehydration of spiral sludge dewatering equipment was again with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag, get potato slag behind the enzymolysis.
(5) with potato slag behind the enzymolysis, carry out expansion drying, obtain product 32kg.
Embodiment 3: the dry processing potato dietary fiber of hollow blade
(1) fresh potato residue 800kg adds 4kg food-grade hydrogen peroxide, places 2 days, fully discharges gas, adds 1600kg times of water then, forms potato slag charge slurry, and it is 180 orders that the potato slag charge is starched with colloid mill circular grinding to potato slag particle degree.
(2) regulate pH to 7.5, add 40g pectin wall breaking enzyme under the normal temperature condition, reacted 1 hour.
(3) in the potato slag, add 1600kg water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 4 times, collect the potato slag.
(4) the potato slag is dissolved in the 1600kg water, add potato slag amount 120g AMS, 120g protease, in 50 ℃ of hydrolysis 1 hour, add the 120g carbohydrase then, in 40 ℃ of saccharification 0.5 hour, the dehydration of spiral sludge dewatering equipment with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, is collected the potato slag again.
(5) with potato slag behind the enzymolysis, carry out the hollow blade drying, obtain product 48.5kg.
Embodiment 4:
(1) fresh potato residue 50kg adds 150kg water, forms potato slag charge slurry, is 160 orders with potato slag charge slurry with colloid mill circular grinding to potato slag particle degree.
(2) regulate pH to 8.0, add the 10g alkaline pectase under the normal temperature condition, reacted 2 hours, cross colloid mill and be milled to 200 orders.
(3) in the potato slag, add 150kg water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 5 times, collect the potato slag.
(4) the potato slag is dissolved in the 120kg water, adds 15g AMS, 15g protease, in 55 ℃ of hydrolysis 1.5 hours, the 15g carbohydrase, in 55 ℃ of saccharification 1 hour, the dehydration of spiral sludge dewatering equipment, with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag again, get potato slag behind the enzymolysis.
(5) potato slag drying behind the enzymolysis is obtained product 2.5kg.
Claims (1)
1. the processing method of a potato insoluble diedairy fiber is characterized in that being processed by following method:
(1) fresh potato residue 500kg adds 5kg food-grade hydrogen peroxide, places 2 days, fully discharges gas, adds 2500kg water then, stirs and forms potato slag charge slurry, and it is 150 orders that the potato slag charge is starched with colloid mill circular grinding to potato slag particle degree;
(2) regulate pH to 8.5, add the 100g alkaline pectase under the normal temperature condition, reacted 2 hours, cross colloid mill and be milled to 150 orders, centrifugal, collect the potato slag;
(3) in the potato slag, add 2000kg water, fully stir the back and dewater, wash with the spiral sludge dewatering equipment, repeat 2 times, collect the potato slag;
(4) the potato slag is dissolved in the 1600kg water, add 50g AMS, 50g protease, in 55 ℃ of hydrolysis 0.5 hour, add the 50g carbohydrase then, in 55 ℃ of saccharification 1.5 hours, the dehydration of spiral sludge dewatering equipment was again with the processing of liquid through horizontal sedimentation centrifuge and video disc machine, collect the potato slag, get potato slag behind the enzymolysis;
(5) potato slag behind the enzymolysis is dissolved in the 1200kg water, carries out centrifugal spray drying, 160 ℃ of inlet temperatures, 90 ℃ of outlet temperatures obtain product 22.5kg.
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| CN103181569A (en) * | 2013-03-11 | 2013-07-03 | 安徽浩大淀粉加工有限公司 | Method for extracting dietary fibers from sweet potato residue in biodegradation process |
| CN104341532A (en) * | 2013-08-07 | 2015-02-11 | 中国食品发酵工业研究院 | Potato slag comprehensive utilization processing method for combined production of starch and meal fiber |
| CN104000138B (en) * | 2014-05-28 | 2015-07-22 | 湖北省农业科学院农产品加工与核农技术研究所 | Process method for preparing biological protein-rich dietary fiber and pectin simultaneously by taking potato residues as raw materials |
| CN103976372B (en) * | 2014-06-03 | 2016-05-18 | 中国农业大学 | A kind of preparation method of Pon mandarin orange dietary fiber |
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