CN114081125A - Production method of zero-fat low-sugar low-GI grain powder - Google Patents

Production method of zero-fat low-sugar low-GI grain powder Download PDF

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CN114081125A
CN114081125A CN202111280731.2A CN202111280731A CN114081125A CN 114081125 A CN114081125 A CN 114081125A CN 202111280731 A CN202111280731 A CN 202111280731A CN 114081125 A CN114081125 A CN 114081125A
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low
fat
acid water
solid
sugar
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CN114081125B (en
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储文宾
程丹丹
储亚稳
储明合
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Heze Zhonghe Jianyuan Biotechnology Co ltd
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Heze Zhonghe Jianyuan Biotechnology Co ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
    • A23L7/10—Cereal-derived products
    • A23L7/198—Dry unshaped finely divided cereal products, not provided for in groups A23L7/117 - A23L7/196 and A23L29/00, e.g. meal, flour, powder, dried cereal creams or extracts
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23B9/08—Drying; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23L29/06—Enzymes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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Abstract

The invention discloses a production method of zero-fat low-sugar low-GI grain powder, which comprises the following steps: (1) and (5) peeling. (2) And (5) carrying out cold pressing and degreasing at low temperature to obtain low-temperature cold pressed grease. (3) Supercritical C02And (3) extraction: almost all of the oil-based fat was obtained. (4) Hydrolyzing to separate amylopectin. (5) Hydrolyzing and separating amylose, collecting the hydrolysate, drying and dehydrating to obtain the mixed saccharide. (6) Hydrolyzing with acid protease to obtain hydrolysate containing small protein molecules. (7) Drying, dehydrating and curing by microwave. (8) Micronizing to micrometer. The process of the invention results in four products of the oil plant, namely lowWarm pressing oil extraction, hydrolysis of sugar and 0-fat low-sugar low-GI grain powder, and improves the comprehensive utilization value of grains. The obtained plant powder particles are in micron-sized, the fat content is lower than 0.5%, the carbohydrate content is lower than 5g/100g, and amino acid and peptide components contained in the solid after the hydrolysis of the acid protease are increased, so that the grain powder is easier to digest and absorb, and the grain dissolubility is increased.

Description

Production method of zero-fat low-sugar low-GI grain powder
Technical Field
The invention belongs to the field of oil plant processing, and particularly relates to a production method of zero-fat low-sugar low-GI grain powder.
Background
In recent years, with the improvement of living standard and the change of dietary structure, the intake of sugar and fat in the diet of residents in China is rising, and the incidence of chronic diseases such as diabetes, hyperlipidemia, hypertension and the like is rising. It is a trend in food development to reduce the sugar content, fat content, GI value (glycemic index) and glycemic index of food.
The oil plant processing generally aims at obtaining grease by pressing and extracting methods, and the rest is directly sold at a low price. However, the process does not completely utilize the nutrients of part of oil plants, such as sesame, walnut, pumpkin seed, perilla seed, linseed, etc., and the raw materials contain a large amount of oil and fat and also contain a plurality of proteins, minerals, trace elements, etc. These nutrients are not fully utilized.
The oil cake as feed has low selling price and little income; the process for preparing the protein product is complex, the cost is high, the cellulose and trace beneficial components in the protein product are lost or completely removed in the extraction process, and the finally obtained protein finished product is relatively macromolecular and is not easy to digest and absorb.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a production method of zero-fat low-sugar low-GI grain powder, which can be used for obtaining squeezed oil and extracting the oil, can fully utilize the residual grain powder, and has the advantages of sugar reduction, carbohydrate reduction, enzymatic hydrolysis of biological molecules into small molecules, easy absorption and good digestion.
The invention is realized by the following technical scheme.
(1) Peeling: removing the outer skin of the oil crops to obtain peeled plant kernels, and removing impurities;
(2) cold pressing and degreasing at low temperature, adding tartaric acid solution into the peeled and impurity-removed plant kernels, heating and softening, and removing partial fat in the plant kernels through a hydraulic oil press to obtain partial pressed oil, namely the low-temperature cold pressed grease;
(3) supercritical CO2And (3) extraction: crushing raw materials, extracting oil by using a supercritical low-temperature extraction method, removing residual oil, and enabling the fat content of the plant kernel to be lower than 0.5% to obtain almost all oil-bearing oil;
(4) hydrolyzing and separating amylopectin: pulverizing all solids to 80-120 mesh, adding acid water and calcium carbonate, grinding the mixture twice with a micron high-shear grinding pump, adding debranching enzyme, hydrolyzing at constant temperature, filtering, separating solid and liquid, and collecting the liquid;
(5) hydrolysis separation of amylose: adding acid water into the obtained solid, passing the mixture through a micron high-shear grinding pump twice, adding calcium chloride, uniformly mixing, adding alpha-amylase, hydrolyzing at constant temperature until the content of the detected carbohydrate is less than 5% by solid content, filtering, carrying out solid-liquid separation, collecting hydrolysate, drying and dehydrating to obtain mixed saccharides;
(6) acid protease hydrolysis: adding acid water into the obtained solid material, neutralizing calcium carbonate in the material, washing with water for multiple times to separate calcium chloride, adjusting pH of the solution to acidity with acid water, grinding with a micron high shear grinding pump, adding acidic protease, and hydrolyzing the material at constant temperature to obtain hydrolysate containing small protein molecules;
(7) microwave drying, dehydrating and curing: transferring the mixed material to a microwave dryer after vacuum dehydration, dehydrating and sterilizing;
(8) superfine grinding: the ultrafine pulverizer is used for pulverizing the material particles to micron level, so that the plant fibers become small, are easy to absorb and digest and have fine and smooth mouthfeel.
In the step (2), tartaric acid solution with weight concentration of 0.2-0.5% is added during softening process until the water content of the raw material is 7-12%, the softening temperature is 48-52 ℃, and the time is 8-10 min.
In the step (3), the raw materials are crushed into 40-60 meshes or pressed into 0.7-3mm cake blanks, the extraction temperature is 30-52 ℃, the extraction pressure is 35-40MPa, and the extraction time is 40-90 min.
In the step (4), the pH value of acid water is 3.7-5.4, the proportion of solid to acid water is 1 (0.6-4), the dosage of calcium carbonate accounts for 0.7-3% of the mass of the material, the dosage of debranching enzyme accounts for 0.1-2.5% of the mass of the solid, and the hydrolysis is carried out for 3-8h at the constant temperature of 55-70 ℃.
In the step (5), the pH value of acid water is 4.8-6.7, the proportion of solid to acid water is 1 (0.6-4), calcium chloride accounts for 0.17-0.25% of the mass of the solid, alpha-amylase (5000-15000 IU/g) accounts for 0.06-1% of the mass of the solid, and the temperature is 57-89 ℃.
In the step (6), the pH value of the solution is adjusted to be 2.5-3.5, and 1800U/g acid protease solution is added to hydrolyze the materials in water bath at the temperature of 38-50 ℃ for 4-8 h. The amount of the acidic protease accounts for 1-2% of the solid mass.
In the step (7), the mixed material is dehydrated in vacuum at 90-110 ℃ until the water content is 30% -70%, and the mixed material is transferred to a microwave dryer to be dehydrated to be within 5%.
In the steps (4), (5) and (6), the acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
In the step (7), the vacuum degree is 0.1-1 Mpa; the microwave dryer has a first area of 55-70 deg.C, a second area of 70-90 deg.C, a third area of 90-105 deg.C, a fourth area of 70-85 deg.C, and a fifth area of 50-60 deg.C, and the materials pass through a second area, a third area, a fourth area and a fifth area in turn at a speed of 0.05-0.6 m/s; high temperature sterilization in three zones.
In the step (8), the rotation speed of the ultrafine pulverizer is 3000-6000 r/min, and the rotation speed of the fan is 20-70 r/min.
The invention has the beneficial effects that:
1. two-step deoiling is adopted to respectively obtain low-temperature squeezed oil and extracted oil, so that beneficial organic matters in the grease are prevented from being damaged, and harmful and toxic organic matters are prevented from being generated. The fat content of the plant kernel is lower than 0.5 percent, almost all oil-bearing grease is obtained, and the waste of the plant grease is effectively avoided
2. Tartaric acid is added in the extraction process for acidification, so that the permeability of cells is increased, the softening time is shortened, and the softening effect is improved.
3. The method adopts a step-by-step desugaring method, firstly uses debranching enzyme to hydrolyze part of amylopectin which is difficult to hydrolyze, and then uses alpha-amylase to hydrolyze more amylose and amylose. The amylase stepwise hydrolysis method is used for respectively hydrolyzing amylose and amylopectin, so that the hydrolysis is more complete, and the low-sugar cereal powder is easier to obtain. The starch with high sugar-raising speed contained in the grains is reduced, and the ratio of fiber to protein is increased, so that the GI value of the grains is reduced.
4. Calcium carbonate is added in the hydrolysis process, and the dispersibility of the system is improved by matching with a micron high-shear grinding pump, so that the hydrolysis of the amylase to the materials is facilitated. Collecting hydrolysate after desugarization, and concentrating to obtain mixed sugar.
5. Hydrolyzing the grain particles with acidic protease, and micronizing. On the one hand, the small molecular weight is increased and on the other hand the particle size is reduced. The plant fiber is reduced, so that the product has fine and smooth mouthfeel and is easy to absorb, and the powder dispersibility is moderately increased.
6. The method is suitable for processing oil crops such as walnut, sesame, pumpkin seed, perilla seed, linseed and the like.
7. The four products of the oil plants, namely the low-temperature pressed oil, the extracted oil, the hydrolyzed sugar and the low-GI grain powder with 0 fat and low sugar, are obtained by the process, so that the comprehensive utilization value of the grains is improved.
8. The obtained plant powder particles are in micron-sized, the fat content is lower than 0.5%, the carbohydrate content is lower than 5g/100g, and amino acid and peptide components contained in the solid after the hydrolysis of the acid protease are increased, so that the grain powder is easier to digest and absorb, and the grain dissolubility is increased.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
Example 1
A production method of zero-fat low-sugar low-GI grain powder comprises the following steps:
(1) peeling: removing the outer skin of fructus Perillae and removing impurities.
(2) Cold pressing and degreasing at low temperature, adding 0.2% tartaric acid solution into peeled and impurity-removed perilla seeds until the water content of the raw material is 11.5%, heating and softening at 48 ℃ for 8min, and removing partial fat in plants by a hydraulic oil press to obtain partial pressed oil, namely the low-temperature cold pressed grease.
(3) Supercritical CO2And (3) extraction: pressing the raw materials into 0.8mm cake blank at 50 deg.C under 38MPa for 85min to obtainExtracting oil; the fat content of the plant kernel is lower than 0.5 percent.
(4) Hydrolyzing and separating amylopectin: crushing all solids to 100 meshes, adding acid water with the pH value of 3.8, adding calcium carbonate accounting for 0.9% of the mass of the materials according to the proportion of the solids to the acid water of 1:0.7, passing the mixture through a micron high-shear grinding pump twice, adding debranching enzyme accounting for 0.3% of the mass of the solids, hydrolyzing at the constant temperature of 55 ℃ for 8 hours, filtering, carrying out solid-liquid separation, and collecting liquid. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(5) Hydrolysis separation of amylose: adding acid water with the pH value of 6.5 into the obtained solid, wherein the ratio of the solid to the acid water is 1:1.2, adding calcium chloride accounting for 0.25% of the mass of the solid, passing the mixture through a micron high-shear grinding pump twice, adding 15000IU/g alpha-amylase 0.09%, hydrolyzing at 86 ℃ at constant temperature until the content of carbohydrate detected is less than 5% of the solid, filtering, carrying out solid-liquid separation, collecting hydrolysate, dehydrating and drying to obtain the mixed saccharide. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(6) Acid protease hydrolysis: adding acid water into the solid material, neutralizing calcium carbonate in the material, and washing with water to separate calcium chloride; adjusting the pH of the material solution to be 3.3, adding an acid protease solution of 600U/g of acid protease after twice treatment by a micron high-shear grinding pump, and hydrolyzing the material in a water bath at the temperature of 45 ℃ for 4.5 h. Obtaining hydrolysate containing protein micromolecules. The amount of the acidic protease accounts for 1-2% of the solid mass. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(7) Microwave drying, dehydrating and curing: dehydrating the mixed material at 95 ℃ in vacuum until the water content is 30%, transferring the mixed material to a microwave dryer, dehydrating and sterilizing. The vacuum degree is 0.1-1 Mpa; the microwave dryer has a first area of 55 ℃, a second area of 70 ℃, a third area of 95 ℃, a fourth area of 75 ℃ and a fifth area of 50 ℃, and materials sequentially pass through a second area, a third area, a fourth area and a fifth area at a speed of 0.05-0.6 m/s; high temperature sterilization in three zones.
(8) Micronizing to obtain micron-sized particles. The rotation speed of the ultrafine grinder is 4500 r/min, and the rotation speed of the fan is 60 r/min.
The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 20min and a pressure of 1 MPa.
Example 2
(1) Peeling: screening semen Sesami, and removing impurities.
(2) Cold pressing at low temperature for defatting, adding 0.3% tartaric acid solution into the semen Sesami after removing impurities until the water content of the raw material is 7.5%, heating and softening at 52 deg.C for 9min, and removing part of fat in plant by hydraulic oil press to obtain part of pressed oil, i.e. low temperature cold pressed oil.
(3) Supercritical CO2And (3) extraction: pressing the raw materials into 2mm cake blank at 35 deg.C under 35.3MPa for 50min to obtain extracted oil with vegetable kernel fat content of less than 0.5%.
(4) Hydrolyzing and separating amylopectin: crushing all solids to 80 meshes, adding acid water with the pH value of 5.0, adding calcium carbonate accounting for 2.5% of the mass of the materials according to the proportion of the solids to the acid water of 1:2.8, passing the mixture through a micron high-shear grinding pump twice, adding debranching enzyme accounting for 2.3% of the mass of the solids, hydrolyzing at the constant temperature of 68 ℃ for 5 hours, filtering, carrying out solid-liquid separation, and collecting liquid. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(5) Hydrolysis separation of amylose: adding acid water with the pH value of 4.8 into the obtained solid, wherein the proportion of the solid to the acid water is 1:3, adding calcium chloride accounting for 0.17% of the mass of the solid, passing the mixture through a micron high-shear grinding pump twice, adding 7000IU/g alpha-amylase 0.5%, hydrolyzing at the constant temperature of 60 ℃ until the content of carbohydrate detected is less than 5% of the solid content, filtering, carrying out solid-liquid separation, collecting hydrolysate, dehydrating and drying to obtain the mixed saccharide. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(6) Acid protease hydrolysis: adding acid water into the solid material, neutralizing calcium carbonate in the material, and washing with water to separate calcium chloride; adjusting the pH of the material solution to be 2.6, adding an acidic protease solution of 1600U/g of acidic protease after twice treatment by a micron high-shear grinding pump, and hydrolyzing the material in a water bath at the temperature of 38 ℃ for 7 hours. Obtaining hydrolysate containing protein micromolecules. The amount of the acidic protease accounts for 1-2% of the solid mass. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(7) Microwave drying, dehydrating and curing: dehydrating the mixed material at the temperature of 107 ℃ in vacuum until the water content is 70 percent, transferring the mixed material to a microwave dryer, dehydrating and sterilizing. The vacuum degree is 0.1-1 Mpa; the microwave dryer has a first area of 70 ℃, a second area of 90 ℃, a third area of 105 ℃, a fourth area of 85 ℃ and a fifth area of 60 ℃, materials sequentially pass through a first area, a second area, a third area, a fourth area and a fifth area at a speed of 0.05-0.6 m/s; high temperature sterilization in three zones.
(8) Micronizing to obtain micron-sized particles. The rotation speed of the ultrafine grinder is 6000 r/min, and the rotation speed of the fan is 70 r/min.
The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 30min, and a pressure of 0.5 MPa.
Example 3
(1) Peeling: screening semen Juglandis, and removing impurities.
(2) Cold pressing at low temperature for defatting, pulverizing semen Juglandis, adding 0.5% tartaric acid solution until the water content of the raw material is 9.5%, heating and softening at 50 deg.C for 10min, and removing partial fat in plant by hydraulic oil press to obtain partial pressed oil, i.e. low temperature cold pressed oil.
(3) Supercritical CO2And (3) extraction: pressing the raw materials into 3mm cake blank at 30 deg.C under 40MPa for 70min to obtain extracted oil with vegetable kernel fat content lower than 0.5%.
(4) Hydrolyzing and separating amylopectin: crushing all solids to 120 meshes, adding acid water with the pH value of 4.5, adding calcium carbonate accounting for 2.0% of the mass of the materials according to the proportion of the solids to the acid water of 1:4, passing the mixture through a micron high-shear grinding pump twice, adding debranching enzyme accounting for 1.3% of the mass of the solids, hydrolyzing at the constant temperature of 62 ℃ for 7 hours, filtering, carrying out solid-liquid separation, and collecting liquid. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(5) Hydrolysis separation of amylose: adding acid water with the pH value of 5.7 into the obtained solid, wherein the ratio of the solid to the acid water is 1:2.2, adding calcium chloride accounting for 0.21% of the mass of the solid, passing the mixture through a micron high-shear grinding pump twice, adding 11000 IU/g alpha-amylase 1.0%, hydrolyzing at 73 ℃ at constant temperature until the content of carbohydrate detected is less than 5% of the solid, filtering, carrying out solid-liquid separation, collecting hydrolysate, dehydrating and drying to obtain the mixed saccharide. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(6) Acid protease hydrolysis: adding acid water into the solid material, neutralizing calcium carbonate in the material, and washing with water to separate calcium chloride; adjusting the pH of the material solution to be 3.0, adding an acidic protease solution of 1200U/g of acidic protease after twice treatment by a micron high-shear grinding pump, and hydrolyzing the material in a water bath at the temperature of 50 ℃ for 5 hours. Obtaining hydrolysate containing protein micromolecules. The amount of the acidic protease accounts for 1-2% of the solid mass. The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
(7) Microwave drying, dehydrating and curing: dehydrating the mixed material at 100 ℃ in vacuum until the water content is 50%, transferring the mixed material to a microwave dryer, dehydrating and sterilizing. The vacuum degree is 0.1-1 Mpa; the microwave dryer has a first area of 62 ℃, a second area of 80 ℃, a third area of 98 ℃, a fourth area of 80 ℃ and a fifth area of 55 ℃, and materials sequentially pass through a second area, a third area, a fourth area and a fifth area at a speed of 0.05-0.6 m/s; high temperature sterilization in three zones.
(8) Micronizing to obtain micron-sized particles. The rotation speed of the ultrafine grinder is 3000 r/min, and the rotation speed of the fan is 40 r/min.
The acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10min, and a pressure of 0.1 MPa.

Claims (8)

1. A production method of zero-fat low-sugar low-GI grain powder is characterized by comprising the following steps:
(1) peeling: removing the outer skin of the oil crops to obtain peeled plant kernels, and removing impurities;
(2) cold pressing and degreasing at low temperature, adding tartaric acid solution into the peeled and impurity-removed plant kernels, heating and softening, and removing partial fat in the plant kernels through a hydraulic oil press to obtain partial pressed oil, namely the low-temperature cold pressed grease;
(3) supercritical CO2And (3) extraction: pulverizing raw materials, extracting oil by supercritical low-temperature extraction method, removing residual oil to reduce fat content in plant kernelAt 0.5%, almost all the oil grease is obtained;
(4) hydrolyzing and separating amylopectin: pulverizing all solids to 80-120 mesh, adding acid water and calcium carbonate, grinding the mixture twice with a micron high-shear grinding pump, adding debranching enzyme, hydrolyzing at constant temperature, filtering, separating solid and liquid, and collecting the liquid;
(5) hydrolysis separation of amylose: adding acid water into the obtained solid, passing the mixture through a micron high-shear grinding pump twice, adding calcium chloride, uniformly mixing, adding alpha-amylase, hydrolyzing at constant temperature until the content of the detected carbohydrate is less than 5% by solid content, filtering, carrying out solid-liquid separation, collecting hydrolysate, drying and dehydrating to obtain mixed saccharides;
(6) acid protease hydrolysis: adding acid water into the obtained solid material, neutralizing calcium carbonate in the material, and washing with water for multiple times to separate calcium chloride; adding acid water into the material solution to adjust ph to acidity, adding acid protease after passing through a micron high-shear grinding pump, and hydrolyzing the material at constant temperature to obtain hydrolysate containing protein micromolecules;
(7) microwave drying, dehydrating and curing: transferring the mixed material to a microwave dryer after vacuum dehydration, dehydrating and sterilizing;
(8) superfine grinding: the ultrafine pulverizer is used for pulverizing the material particles to micron level, so that the plant fibers become small, are easy to absorb and digest and have fine and smooth mouthfeel.
2. The method for producing grain flour with low content of fat and sugar and low content of GI according to claim 1, wherein in the step (2), tartaric acid solution with weight concentration of 0.2-0.5% is added during the softening process until the moisture content of the raw material is 7-12%, the softening temperature is 48-52 ℃, and the time is 8-10 min.
3. The method for producing grain powder with zero fat, low sugar and low GI according to claim 1, wherein in the step (3), the raw material is crushed into 40-60 mesh or pressed into 0.7-3mm cake blank, the extraction temperature is 30-52 ℃, the extraction pressure is 35-40MPa, and the extraction time is 40-90 min.
4. The method for producing grain powder with zero fat, low sugar and low GI according to claim 1, wherein in the step (4), the pH of the acid water is 3.7-5.4, the ratio of the solid to the acid water is 1 (0.6-4), the amount of calcium carbonate is 0.7-3% of the mass of the material, the amount of debranching enzyme is 0.1-2.5% of the mass of the solid, and the grain powder is hydrolyzed at constant temperature of 55-70 ℃ for 3-8 h; using citric acid aqueous solution for acid water; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
5. The method for producing a zero-fat, low-sugar and low-GI cereal flour as claimed in claim 1, wherein in the step (5), the pH of the acid water is 4.8-6.7, the ratio of the solid to the acid water is 1 (0.6-4), the amount of calcium chloride is 0.17-0.25% by mass of the solid, the amount of alpha-amylase (5000-15000 IU/g) is 0.06-1% by mass of the solid, and the temperature is 57-89 ℃; the acid water is citric acid water solution; the grinding pump has a grinding particle size of 20-100 μm, a time of 10-30min, and a pressure of 0.1-1 MPa.
6. The method for producing zero-fat low-sugar low-GI cereal flour as claimed in claim 1, wherein in the step (6), the pH of the solution is adjusted to 2.5-3.5, and 1800U/g acid protease solution is added, and the material is hydrolyzed in water bath at 38-50 ℃ for 4-8 h; the acid water is citric acid water solution; grinding pump with grinding particle size of 20-100 μm for 10-30min under pressure of 0.1-1 MPa; the amount of the acidic protease accounts for 1-2% of the solid mass.
7. The method for producing zero-fat low-sugar low-GI cereal flour according to claim 1, wherein in the step (7), the mixed material is dehydrated in vacuum at 90-110 ℃ to a water content of 30% -70%, transferred to a microwave dryer and dehydrated to less than 5%; the vacuum degree is 0.1-1 Mpa; the microwave dryer has a first area of 55-70 deg.C, a second area of 70-90 deg.C, a third area of 90-105 deg.C, a fourth area of 70-85 deg.C, and a fifth area of 50-60 deg.C, and the materials pass through a second area, a third area, a fourth area and a fifth area in turn at a speed of 0.05-0.6 m/s; high temperature sterilization in three zones.
8. The method as claimed in claim 1, wherein in step (8), the rotation speed of the micronizer is 3000-.
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CN104313082A (en) * 2014-11-11 2015-01-28 济南凯因生物科技有限公司 Method for extracting polysaccharose from sesame seed meal through biological enzyme method
CN109924262A (en) * 2019-04-09 2019-06-25 滁州学院 A kind of synchronous processing method of high-purity Walnut protein powder and walnut beverage
CN112772768A (en) * 2021-02-02 2021-05-11 黑龙江品臣科技有限公司 Preparation process of fructus cannabis protein powder

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CN101690596A (en) * 2009-10-14 2010-04-07 北京市科威华食品工程技术有限公司 Walnut powder and production method thereof
CN103535508A (en) * 2013-10-22 2014-01-29 陕西天玉实业有限公司 \Walnut protein powder and preparation method thereof
CN104313082A (en) * 2014-11-11 2015-01-28 济南凯因生物科技有限公司 Method for extracting polysaccharose from sesame seed meal through biological enzyme method
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