阅读说明：本技术 一种具有高粘度、低甜度的多元糖醇及其生产工艺 (Polyhydric sugar alcohol with high viscosity and low sweetness and production process thereof ) 是由 闫传浩 刘建 任尚美 张晓霞 王坤 于 2021-01-29 设计创作，主要内容包括：本发明提供了一种具有高粘度、低甜度的多元糖醇及其生产工艺,多元糖醇的浓缩液中各化学成分以干基计的质量百分比浓度如下：寡糖醇16-25%；麦芽六糖醇10%-15％,麦芽五糖醇15-25％,麦芽四糖醇,7%-11％；麦芽三糖醇13-17％；麦芽糖醇15%-20％；山梨糖醇2%-6％,干物质在70%的浓缩液25℃粘度在1200-1500MPa·s,84%25℃粘度在35000-40000MPa·s,甜度只有蔗糖甜度的15%-20%,多元糖醇的加工步骤如下：酸解→焙烤→调浆→液化→脱色→净化→蒸发→加氢→脱色→净化→蒸发→单效浓缩。本发明的有益效果除具高保湿活性外,还具有高粘度、低甜度的多元糖醇和现有技术相比,除普通多元糖醇具有的非着色性、抗结晶性、高保湿性等良好特性外,高粘度低甜度是本多元糖醇的重要特性。(The invention provides a polyhydric sugar alcohol with high viscosity and low sweetness and a production process thereof, wherein the concentrated solution of the polyhydric sugar alcohol comprises the following chemical components in percentage by mass on a dry basis: 16-25% of oligosaccharide alcohol; 10% -15% of maltol hexaose, 15% -25% of maltopentaitol and 7% -11% of maltotetraitol; 13-17% of maltotriose alcohol; 15% -20% of maltitol; sorbitol 2% -6%, dry matter viscosity at 25 deg.C of 70% concentrated solution at 1200-: acid hydrolysis → baking → size mixing → liquefaction → decolorization → evaporation → hydrogenation → decolorization → purification → evaporation → single effect concentration. Compared with the prior art, the polyol with high viscosity and low sweetness has the advantages that the polyol has high moisturizing activity, high viscosity and low sweetness, and the high viscosity and low sweetness is an important characteristic of the polyol except good characteristics of non-coloring property, crystallization resistance, high moisturizing property and the like of common polyol.)

1. A polyhydric sugar alcohol with high viscosity and low sweetness is characterized in that the mass percentage concentration of each chemical component in a concentrated solution of the polyhydric sugar alcohol on a dry basis is as follows:

16-25% of oligosaccharide alcohol, 10-15% of maltohexaose, 15-25% of maltopentaose, 7-11% of maltotetraol, 13-17% of maltotriose alcohol, 15-20% of maltitol and 2-6% of sorbitol, wherein the viscosity of dry substances in concentrated solution at 70% and 25 ℃ is 1200-1500 MPa.s, the viscosity in concentrated solution at 84% and 25 ℃ is 35000-40000 MPa.s, and the sweetness is 15-20% of the sweetness of sucrose.

2. A process for producing a polyhydric sugar alcohol having high viscosity and low sweetness as claimed in claim 1, which comprises the steps of:

(1) acidifying: adding water into food-grade hydrochloric acid to prepare dilute acid solution, atomizing by a high-pressure spray nozzle, and mixing with edible corn starch in a high-speed mixer;

(2) baking: drying the starch mixed in the step (1) by a disc type dryer;

(3) size mixing: adding process water into the dried starch in the step (2) in a size mixing tank, and uniformly stirring, and controlling the baume degree to be 21-25 DEG Be;

(4) liquefaction: adding alpha-amylase (with the enzyme activity of 30000-36000LU/g) into the prepared starch milk according to the proportion of 0.04-0.05L/m, controlling the preheating temperature of a laminar flow tank to 98-102 ℃, the temperature of a liquefaction ejector to 110-112 ℃, controlling the laminar flow heat preservation time to 100-360120 min, and controlling the DE value to 5-7%;

(5) and (3) decoloring: adding active carbon into the liquefied liquid obtained in the step (4) according to the proportion of 0.5kg/m for carrying out heat preservation at 80-85 ℃ for 30min, precoating filter cloth with diatomite, and carrying out plate-frame filtration to obtain a sugar liquid with the light transmittance of more than 97%;

(6) purifying: removing impurity ions in the sugar solution by a destaining solution through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column in sequence to ensure that the conductivity of the destaining solution is lower than 10 us/cm;

the feeding temperature is less than or equal to 40 ℃, and the light transmittance is more than 99 percent;

(7) and (3) evaporation: concentrating the purified solution obtained in the step (6) to a dry matter content of 48-52% to obtain a polyhydric sugar alcohol raw material solution;

(8) hydrogenation: adding a radium-Ni nickel catalyst according to the concentration and the quality of the raw material liquid, and hydrogenating at high temperature and high pressure;

(9) and (3) decoloring: adding activated carbon in a certain proportion into the hydrogenation solution obtained in the step (8), precoating filter cloth with diatomite, filtering, and removing the catalyst;

(10) purifying: removing impurity ions in the sugar liquor by sequentially passing the decolored filtrate obtained in the step (9) through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column to enable the conductivity of the filtrate to be lower than 10 us/cm;

the feeding temperature is less than or equal to 40 ℃;

(11) and (3) evaporation: concentrating the purified solution to dry matter content of 65-70%;

(12) concentration: and (4) concentrating the purified solution in the step (11) until the dry matter content is 70-85%, and obtaining the polyhydric sugar alcohol product.

3. The process for producing a polyhydric sugar alcohol having a high viscosity and a low sweetness as claimed in claim 2, wherein the concentration of the dilute acid solution in the step (1) is 2 to 5%, the mixing ratio with the starch is 8 to 10%, and the moisture of the final starch is controlled to be 20 to 22%.

4. The process for producing a polyhydric sugar alcohol having a high viscosity and a low sweetness as claimed in claim 2, wherein the baking temperature in the step (2) is 120 ℃ and 150 ℃ and the baking time is 50 to 70 min.

Technical Field

The invention relates to the field of food preparation, in particular to a polyhydric sugar alcohol with high viscosity and low sweetness and a production process thereof.

Background

The polyhydric sugar alcohol as functional hydrogenated starch hydrolysate has good food additive properties such as moisture retention and crystallization prevention, and low-energy and non-dental caries health promotion function. These properties make it widely used in chemical, light industry, food and other industries. Particularly in the food industry, the functional sweetener has promising application history for over ten years in Japan and is approved to be used in many other countries, China has not studied systematically and deeply aiming at the field, and after various excellent physicochemical and physiological properties of the hydrogenated starch hydrolysate are internationally and widely recognized, the domestic needs to carry out intensive research in the field and form systematic research data and product series.

How to solve the above technical problems is the subject of the present invention.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a polyhydric sugar alcohol with high viscosity and low sweetness and a production process thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides a polyhydric sugar alcohol with high viscosity and low sweetness, wherein the concentrated solution of the polyhydric sugar alcohol comprises the following chemical components in percentage by mass on a dry basis:

16-25% of oligosaccharide alcohol, 10-15% of maltohexaose, 15-25% of maltopentaose, 7-11% of maltotetraose, 13-17% of maltotriose alcohol, 15-20% of maltitol and 2-6% of sorbitol, wherein the viscosity of dry substances in a concentrated solution at 70% and 25 ℃ is 1200-1500 MPa.s, the viscosity in a concentrated solution at 84% and 25 ℃ is 35000-40000 MPa.s, the sweetness is 15-20% of the sweetness of cane sugar, the contents of sorbitol and maltitol in the polyhydric sugar alcohol are lower, and the contents of pentaose and the above sugar alcohols are higher.

A process for producing a polyhydric sugar alcohol having high viscosity and low sweetness, which comprises the following steps:

(1) acidifying: adding water into food-grade hydrochloric acid to prepare 2-5% dilute acid solution, atomizing the dilute acid solution by a high-pressure spray nozzle, mixing the dilute acid solution with edible corn starch in a high-speed mixer according to 8-10% of the mass of a starch wet base, and controlling the water content of the finally mixed starch to be 20-22%;

(2) baking: drying the starch mixed in the step (1) by a disc type dryer, controlling the drying temperature to be 120-;

(3) size mixing: adding process water into the dried starch in the step (2) in a size mixing tank, and uniformly stirring, and controlling the baume degree to be 21-25 DEG Be;

(4) liquefaction: the prepared starch milk is mixed according to the proportion of 0.04-0.05L/m³Adding alpha-amylase (with the enzyme activity of 30000-36000LU/g), controlling the preheating temperature of a laminar flow tank to be 98-102 ℃, the temperature of a liquefaction ejector to be 110-112 ℃, controlling the laminar flow heat preservation time to be 100-120min, and controlling the DE value to be 5-7%;

(5) and (3) decoloring: 0.5kg/m of the liquefied solution obtained in the step (4)³Adding active carbon according to the proportion, keeping the temperature at 80-85 ℃ for 30min, pre-coating diatomite with filter cloth, filtering by a plate frame,obtaining sugar liquid with the light transmittance of more than 97 percent;

(6) purifying: removing impurity ions in the sugar solution by a destaining solution through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column in sequence to ensure that the conductivity of the destaining solution is lower than 10 us/cm;

the feeding temperature is less than or equal to 40 ℃, and the light transmittance is more than 99 percent;

(7) and (3) evaporation: concentrating the purified solution obtained in the step (6) to a dry matter content of 48-52% to obtain a polyhydric sugar alcohol raw material solution;

(8) hydrogenation: adding a radium-Ni nickel catalyst according to the concentration and the quality of the raw material liquid, and hydrogenating at high temperature and high pressure;

(9) and (3) decoloring: adding activated carbon in a certain proportion into the hydrogenation solution obtained in the step (8), precoating filter cloth with diatomite, filtering, and removing the catalyst;

(10) purifying: removing impurity ions in the sugar liquor by sequentially passing the decolored filtrate obtained in the step (9) through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column to enable the conductivity of the impurity ions to be lower than 10us/cm and the feeding temperature to be less than or equal to 40 ℃;

(11) and (3) evaporation: concentrating the purified solution to dry matter content of 65-70%;

(12) concentration: and (4) concentrating the purified solution in the step (11) until the dry matter content is 70-85%, and obtaining the polyhydric sugar alcohol product.

Compared with the prior art, the polyol with high viscosity and low sweetness has the good characteristics of non-colorability, crystallization resistance, high moisture retention and the like, also has high viscosity and low sweetness, has lower production cost compared with an enzyme method, and has good application prospect in the field of food production, particularly in the aspects of stuffing, candies, decayed tooth prevention food and special food for diabetes patients and baking industry.

Drawings

FIG. 1 is a high performance liquid chromatogram of a polyhydric sugar alcohol and the amounts of each main component in an example of the present invention.

FIG. 2 is a high performance liquid chromatogram of a dihydric sugar alcohol of example 2 of the present invention, together with the amounts of the respective main components.

FIG. 3 is a high performance liquid chromatogram of a tripolysugar alcohol of example of the present invention, together with the amounts of the respective main components.

Detailed Description

Technical characteristics of the scheme can be clearly explained, and the scheme is explained through a specific implementation mode.

The first embodiment is as follows:

this example is a process for producing a polyhydric sugar alcohol having high viscosity and low sweetness, which comprises the following steps:

(1) acidifying: adding water into food-grade hydrochloric acid to prepare 3% dilute acid solution, atomizing by a high-pressure spray nozzle, mixing with edible corn starch in a high-speed mixer according to 8% of the mass of a starch wet base, and controlling the water content of the finally mixed starch to be 20%;

(2) baking: drying the starch mixed in the step (1) by a disc type dryer, controlling the drying temperature to be 120 ℃, and drying for 70 min;

(3) size mixing: adding process water into the dried starch in the step (2) in a size mixing tank, and uniformly stirring to control the baume degree of 21 DEG Be;

(4) liquefaction: the content of the starch in the prepared starch milk is 0.042L/m³Adding alpha-amylase (enzyme activity is 30000-36000LU/g), preheating the laminar flow tank at 99 ℃, liquefying the ejector at 110 ℃, controlling laminar flow heat preservation time for 100min and controlling DE value at 5%;

(5) and (3) decoloring: 0.5kg/m of the liquefied solution obtained in the step (4)³Adding activated carbon according to the proportion, preserving heat at 80 ℃ for 30min, pre-coating diatomite with filter cloth, and filtering by a plate frame to obtain sugar liquid with the light transmittance of more than 97%;

(6) purifying: impurity ions in the sugar solution are removed by the destaining solution through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column in sequence, so that the conductivity of the destaining solution is lower than 10us/cm, the feeding temperature is 39 ℃, and the light transmittance is higher than 99%;

(7) and (3) evaporation: concentrating the purified solution obtained in the step (6) to a dry matter content of 49% to obtain a polyhydric sugar alcohol raw material solution;

(8) hydrogenation: adding a radium-Ni nickel catalyst according to the concentration and the quality of the raw material liquid, and hydrogenating at high temperature and high pressure;

(9) and (3) decoloring: adding activated carbon in a certain proportion into the hydrogenation solution obtained in the step (8), precoating filter cloth with diatomite, filtering, and removing the catalyst;

(10) purifying: removing impurity ions in the sugar liquor by sequentially passing the decolored filtrate obtained in the step (9) through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column to enable the conductivity of the filtrate to be lower than 10 us/cm;

the feeding temperature is 39 ℃;

(11) and (3) evaporation: concentrating the purified solution to a dry matter content of 68%;

(12) concentration: and (4) concentrating the purified solution in the step (11) until the dry matter content is 72%, so as to obtain the polyhydric sugar alcohol product.

In the concentrated solution, the mass percentage concentration of each chemical component on a dry basis is as follows:

oligo sugar alcohol 21.67%; 12.98% of maltohexaol, 19.52% of maltopentaitol and 7.96% of maltotetraol; 14.18 percent of maltotriose alcohol; 17.7% of maltitol; sorbitol 4.12%. The viscosity is 1300 MPa.S, and the sweetness is about 15% of cane sugar.

Table one: viscosity test data

Table two: in the concentrated solution, the mass percentage concentration of each chemical component is calculated by dry basis

Example two:

this example is a process for producing a polyhydric sugar alcohol having high viscosity and low sweetness, which comprises the following steps:

(1) acidifying: adding water into food-grade hydrochloric acid to prepare 4% dilute acid solution, atomizing by a high-pressure spray nozzle, mixing with edible corn starch in a high-speed mixer according to 9% of the mass of a starch wet base, and controlling the water content of the finally mixed starch to be 21%;

(2) baking: drying the starch mixed in the step (1) by a disc type dryer, controlling the drying temperature to be 130 ℃, and drying for 60 min;

(3) size mixing: adding process water into the dried starch in the step (2) in a size mixing tank, and uniformly stirring, and controlling the baume degree of 22 DEG Be;

(4) liquefaction: the content of the starch in the prepared starch milk is 0.044L/m³Adding alpha-amylase (enzyme activity is 30000-36000LU/g), preheating the laminar flow tank at 100 ℃, liquefying the ejector at 110.8 ℃, controlling laminar flow heat preservation time for 110min and controlling DE value to 6%;

(5) and (3) decoloring: 0.5kg/m of the liquefied solution obtained in the step (4)³Adding activated carbon according to the proportion, keeping the temperature at 82 ℃ for 30min, pre-coating diatomite with filter cloth, and filtering by a plate frame to obtain sugar liquid with the light transmittance of more than 97%;

(6) purifying: removing impurity ions in the sugar solution by a destaining solution through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column in sequence to ensure that the conductivity of the destaining solution is lower than 10 us/cm;

the feeding temperature is 38 ℃, and the light transmittance is more than 99 percent;

(7) and (3) evaporation: concentrating the purified solution obtained in the step (6) to a dry matter content of 49% to obtain a polyhydric sugar alcohol raw material solution;

(8) hydrogenation: adding a radium-Ni nickel catalyst according to the concentration and the quality of the raw material liquid, and hydrogenating at high temperature and high pressure;

(9) and (3) decoloring: adding activated carbon in a certain proportion into the hydrogenation solution obtained in the step (8), precoating filter cloth with diatomite, filtering, and removing the catalyst;

(10) purifying: removing impurity ions in the sugar liquor by sequentially passing the decolored filtrate obtained in the step (9) through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column to enable the conductivity of the filtrate to be lower than 10 us/cm;

the feeding temperature is 39 ℃;

(11) and (3) evaporation: concentrating the purified solution to a dry matter content of 65%;

(12) concentration: and (4) concentrating the purified solution in the step (11) until the dry matter content is 70%, and obtaining the polyhydric sugar alcohol product.

In the concentrated solution, the mass percentage concentration of each chemical component on a dry basis is as follows: 21.64% of an oligosaccharide alcohol; 13.1% of maltohexaose, 19.7% of maltopentaose and 9.05% of maltotetraol; 15.01 percent of maltotriose alcohol; 16.35% of maltitol; sorbitol 3.68%. The viscosity is 1350 MPa.S, and the sweetness is about 15% of cane sugar.

Table one: viscosity test data

Table two: in the concentrated solution, the mass percentage concentration of each chemical component is calculated by dry basis

Example three:

this example is a process for producing a polyhydric sugar alcohol having high viscosity and low sweetness, which comprises the following steps:

(1) acidifying: adding water into food-grade hydrochloric acid to prepare 5% dilute acid solution, atomizing by a high-pressure spray nozzle, mixing with edible corn starch in a high-speed mixer according to 10% of the mass of a starch wet base, and controlling the water content of the finally mixed starch to be 22%;

(2) baking: drying the starch mixed in the step (1) by a disc type dryer, controlling the drying temperature to be 150 ℃, and drying for 50 min;

(3) size mixing: adding process water into the dried starch in the step (2) in a size mixing tank, and uniformly stirring, and controlling the baume degree to be 23 degrees;

(4) liquefaction: the prepared starch milk is mixed according to the proportion of 0.046L/m³Alpha-amylase (enzyme activity is 30000-36000LU/g) is added according to the proportion, and the preheating temperature of the laminar flow tank is 101Controlling the temperature of a liquefaction ejector to be 111.8 ℃, controlling laminar flow heat preservation time to be 120min and controlling DE value to be 7%;

(5) and (3) decoloring: 0.5kg/m of the liquefied solution obtained in the step (4)³Adding activated carbon according to the proportion, keeping the temperature at 83 ℃ for 30min, pre-coating diatomite with filter cloth, and filtering by a plate frame to obtain sugar liquid with the light transmittance of more than 97%;

(6) purifying: removing impurity ions in the sugar solution by a destaining solution through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column in sequence to ensure that the conductivity of the destaining solution is lower than 10 us/cm;

the feeding temperature is 36 ℃, and the light transmittance is more than 99 percent;

(7) and (3) evaporation: concentrating the purified solution obtained in the step (6) to a dry matter content of 51% to obtain a polyhydric sugar alcohol raw material solution;

(8) hydrogenation: adding a radium-Ni nickel catalyst according to the concentration and the quality of the raw material liquid, and hydrogenating at high temperature and high pressure;

(9) and (3) decoloring: adding activated carbon in a certain proportion into the hydrogenation solution obtained in the step (8), precoating filter cloth with diatomite, filtering, and removing the catalyst;

(10) purifying: removing impurity ions in the sugar liquor by sequentially passing the decolored filtrate obtained in the step (9) through a cation exchange column, an anion exchange column, a cation exchange column and an anion exchange column to enable the conductivity of the filtrate to be lower than 10 us/cm;

the feeding temperature is 38 ℃;

(11) and (3) evaporation: concentrating the purified solution to a dry matter content of 66%;

(12) concentration: and (4) concentrating the purified solution in the step (11) until the dry matter content is 71%, so as to obtain the polyhydric sugar alcohol product.

In the concentrated solution, the mass percentage concentration of each chemical component on a dry basis is as follows: 21.37% of an oligosaccharide alcohol; 11.48% of maltohexaose, 20.19% of maltopentaose and 8.98% of maltotetraol; 15.78% of maltotriose alcohol; 15.98% of maltitol; and 5.3 percent of sorbitol. The viscosity is 1402 MPa.S, and the sweetness is about 15 percent of cane sugar.

Table one: viscosity test data

Table two: in the concentrated solution, the mass percentage concentration of each chemical component is calculated by dry basis

The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.