阅读说明：本技术 一种f42果糖加工工艺 (F42 fructose processing technology ) 是由 谢虎 于 2019-09-11 设计创作，主要内容包括：本发明提供一种F42果糖加工工艺,涉及果糖领域,包括如下步骤：S1、将大米粉碎；S2、调浆,得到淀粉乳；S3、液化,向淀粉乳中加入液化酶,进行反应；S4、糖化；S5、超声波处理；S6、过滤；S7、脱色；S8、离子交换；S9、异构；S10、再次进行离子交换；S11、蒸发浓缩得到果糖成品。本发明通过在高温高压喷射前第一次加入少量的酶,使得反应充分后,再进行喷射,然后在进入层流罐之前再次加入酶,再次进行反应,从而使得酶得到充分的利用,通过将淀粉乳酶解后再进行超声处理,加强了细胞内糖分的释放,从而提高了淀粉乳中多糖的提取率,整个发明结构简单,减少对酶造成损坏,大大提高了多糖的提取率,一定程度上节省了成本,实用性高。(The invention provides a F42 fructose processing technology, which relates to the field of fructose and comprises the following steps: s1, crushing rice; s2, mixing slurry to obtain starch milk; s3, liquefying, namely adding liquefying enzyme into the starch milk to perform reaction; s4, saccharifying; s5, ultrasonic treatment; s6, filtering; s7, decoloring; s8, ion exchange; s9, isomerism; s10, carrying out ion exchange again; s11, evaporating and concentrating to obtain the fructose finished product. According to the invention, a small amount of enzyme is added for the first time before high-temperature and high-pressure spraying, so that the reaction is carried out again after the reaction is complete, then the enzyme is added again before the reaction enters the laminar flow tank, the reaction is carried out again, so that the enzyme is fully utilized, and the release of intracellular sugar is enhanced by carrying out ultrasonic treatment after the starch milk is subjected to enzymolysis, so that the extraction rate of polysaccharide in the starch milk is improved.)

1. A F42 fructose processing technology is characterized in that: the method comprises the following steps:

s1, preprocessing, namely cleaning rice with clear water, drying the rice by adopting a microwave vacuum dryer until the water content is 3-6%, and then crushing the rice into fine powder with the fineness of 60-200 meshes to obtain rice powder;

S2, size mixing, namely adding water into the rice flour, and adding acid to adjust the pH value of the solution to 6.2-6.8 to obtain starch milk;

s3, liquefying, namely adding liquefying enzyme into starch milk for reaction, then spraying by using a high-temperature high-pressure sprayer, keeping the pressure of the sprayed liquid for 7min, then carrying out flash evaporation, adding the liquefying enzyme again after the flash evaporation, and then entering a laminar flow tank for reaction for 2h, wherein the reaction temperature is 95-98 ℃;

s4, saccharifying, namely adjusting the liquefied liquid obtained in the S3 to a DE value of 20%, a pH value of 4.3-4.5 and a temperature of 58-62 ℃, and then adding saccharifying enzyme for saccharifying, wherein the DE value of the saccharified liquid is 95-97%;

s5, carrying out ultrasonic treatment, namely feeding the saccharified liquid obtained in the step S4 into ultrasonic equipment, carrying out hydrolysis treatment for 40-80 min under the conditions that the ultrasonic frequency is 20-40 KHz and the temperature is 50-70 ℃, then filtering, and collecting filtrate;

s6, filtering, namely feeding the filtrate in the S5 into ultrafiltration equipment for ultrafiltration treatment, and removing impurities to obtain ultrafiltrate;

s7, decoloring, and removing organic pigments, soluble proteins and grease by adding wet carbon for sugar twice;

s8, ion exchange; carrying out ion exchange on the liquid by using ion exchange resin to obtain transparent, clear and colorless liquid without foreign matters and foam;

S9, isomerizing, namely adding isomerase into an isomerization column to form an immobilized isomerization bed, reacting the materials at 56-58 ℃ after the materials pass through the isomerization bed, and converting 42% of glucose into fructose to obtain F42 high fructose syrup;

s10, secondary ion exchange, and secondary ion exchange, wherein anion and cation impurities and a small amount of organic impurities are removed by using ion exchange resin;

and S11, evaporating and concentrating by using an MVR evaporator to obtain a fructose finished product.

2. the process of claim 1, wherein the F42 fructose is prepared by the following steps: the liquefying enzyme is amylase.

3. the process of claim 1, wherein the F42 fructose is prepared by the following steps: the saccharifying enzyme is a compound saccharifying enzyme and is formed by mixing 5% of pullulanase and 95% of saccharifying enzyme, and the saccharifying time is 26 h.

4. the process of claim 1, wherein the F42 fructose is prepared by the following steps: the temperature of the high-pressure high-temperature ejector is 108 ℃.

5. the process of claim 1, wherein the F42 fructose is prepared by the following steps: the sugar wet charcoal is 303 type sugar wet charcoal, and the adding amount is 0.3%/T.

6. the process of claim 1, wherein the F42 fructose is prepared by the following steps: the starch milk in the S1 is a 34% starch solution with a pH value of 5.8-6.

7. a preparation method of the F42 fructose processing technology according to claim 1, which is characterized in that: the weight ratio of the rice flour and the water added in the S2 is 1: 6-7.

8. a preparation method of the F42 fructose processing technology according to claim 1, which is characterized in that: the dosage of the liquefying enzyme is 0.03-0.04% of the total volume of the starch milk.

Technical Field

The invention relates to the field of fructose, and in particular relates to a F42 fructose processing technology.

background

Fructose, which contains 6 carbon atoms and is also a monosaccharide, is an isomer of glucose, and is present in large amounts in the free state in fruit juices and honey, and can also combine with glucose to form sucrose. The pure fructose is colorless crystal with melting point of 103-105 ℃, is not easy to crystallize, is usually viscous liquid and is easy to dissolve in water, ethanol and ether.

F42 is 42% fructose, enzyme is needed to be added twice in the process of liquefaction in the existing fructose production and processing technology, an ejector is used for spraying after the enzyme is added, the temperature and pressure are too high during spraying, the enzyme is easily damaged, and certain waste is caused, meanwhile, because cell walls exist in rice flour, the release of sugar in cells is greatly hindered, and therefore the extraction rate of polysaccharide in the rice is not high, and therefore, the F42 fructose processing technology is provided.

Disclosure of Invention

the invention aims to provide a F42 fructose processing technology to solve the technical problems.

in order to solve the technical problems, the invention adopts the following technical scheme:

a F42 fructose processing technology is characterized in that: the method comprises the following steps:

s1, preprocessing, namely cleaning rice with clear water, drying the rice by adopting a microwave vacuum dryer until the water content is 3-6%, and then crushing the rice into fine powder with the fineness of 60-200 meshes to obtain rice powder;

s2, size mixing, namely adding water into the rice flour, and adding acid to adjust the pH value of the solution to 6.2-6.8 to obtain starch milk;

S3, liquefying, namely adding liquefying enzyme into starch milk for reaction, then spraying by using a high-temperature high-pressure sprayer, keeping the pressure of the sprayed liquid for 7min, then carrying out flash evaporation, adding the liquefying enzyme again after the flash evaporation, and then entering a laminar flow tank for reaction for 2h, wherein the reaction temperature is 95-98 ℃;

s4, saccharifying, namely adjusting the liquefied liquid obtained in the S3 to a DE value of 20%, a pH value of 4.3-4.5 and a temperature of 58-62 ℃, and then adding saccharifying enzyme for saccharifying, wherein the DE value of the saccharified liquid is 95-97%;

s5, carrying out ultrasonic treatment, namely feeding the saccharified liquid obtained in the step S4 into ultrasonic equipment, carrying out hydrolysis treatment for 40-80 min under the conditions that the ultrasonic frequency is 20-40 KHz and the temperature is 50-70 ℃, then filtering, and collecting filtrate;

s6, filtering, namely feeding the filtrate in the S5 into ultrafiltration equipment for ultrafiltration treatment, and removing impurities to obtain ultrafiltrate;

s7, decoloring, and removing organic pigments, soluble proteins and grease by adding sugar and wet carbon twice;

S8, ion exchange; carrying out ion exchange on the liquid by using ion exchange resin to obtain transparent, clear and colorless liquid without foreign matters and foam;

s9, isomerizing, namely adding isomerase into an isomerization column to form an immobilized isomerization bed, reacting the materials at 56-58 ℃ after the materials pass through the isomerization bed, and converting 42% of glucose into fructose to obtain F42 high fructose syrup;

s10, ion exchange, carrying out ion exchange again, and removing anion and cation impurities and a small amount of organic impurities by using ion exchange resin;

and S11, evaporating and concentrating by using an MVR evaporator to obtain a fructose finished product.

Preferably, the liquefying enzyme is an amylase.

Preferably, the saccharifying enzyme is a composite saccharifying enzyme and is prepared by mixing 5% of pullulanase and 95% of saccharifying enzyme, and the saccharifying time is 26 h.

Preferably, the temperature of the high-pressure high-temperature ejector is 108 ℃.

Preferably, the wet carbon for sugar is 303 type wet carbon for sugar, and the adding amount is 0.3%/T.

preferably, the starch milk in the S1 is a 34% starch solution with a pH value of 5.8-6.

preferably, the weight ratio of the rice flour and the water added in the S2 is 1: 6-7.

preferably, the using amount of the liquefying enzyme is 0.03-0.04% of the total volume of the starch milk.

the invention has the beneficial effects that:

the invention adds a small amount of enzyme for the first time before high-temperature and high-pressure spraying, so that the enzyme is fully reacted and then sprayed, then the enzyme is added again before entering the laminar flow tank for reaction again, thereby fully utilizing the enzyme, effectively reducing the damage rate of the enzyme damaged by high temperature, the invention utilizes the cavitation effect, the thermal effect and the mechanical effect of ultrasonic to carry out ultrasonic treatment after the starch milk is enzymolyzed, when the ultrasonic wave with large energy acts on the starch milk, the cell wall and the organism in the starch milk are instantaneously ruptured, the extraction time of the starch lactopolysaccharide is greatly shortened, the vibration effect of the ultrasonic wave strengthens the release of intracellular sugar, the sugar is extracted, thereby the extraction rate of the polysaccharide in the starch milk is improved, the whole invention has simple structure, the damage to the enzyme is reduced, the extraction rate of the polysaccharide is greatly improved, the cost is saved to a certain extent, the practicability is high.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.