CN114504067A - Low-osmotic-pressure weight-losing and lipid-lowering beverage and production method thereof - Google Patents

Low-osmotic-pressure weight-losing and lipid-lowering beverage and production method thereof Download PDF

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CN114504067A
CN114504067A CN202210202141.6A CN202210202141A CN114504067A CN 114504067 A CN114504067 A CN 114504067A CN 202210202141 A CN202210202141 A CN 202210202141A CN 114504067 A CN114504067 A CN 114504067A
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weight
polysaccharide
parts
enzymolysis
ultrasonic treatment
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何静仁
李玉保
张瑞
吴慕慈
吴东
江思佳
叶树芯
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Yunhong Group Co ltd
Wuhan Polytechnic University
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Yunhong Group Co ltd
Wuhan Polytechnic University
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/02Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/52Adding ingredients
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/52Adding ingredients
    • A23L2/60Sweeteners
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/105Plant extracts, their artificial duplicates or their derivatives
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/125Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P10/00Shaping or working of foodstuffs characterised by the products
    • A23P10/30Encapsulation of particles, e.g. foodstuff additives
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Abstract

The invention discloses a low-osmotic pressure weight-losing and lipid-lowering beverage and a production method thereof, wherein the beverage comprises the following components in parts by weight: 1-2 parts of L-carnitine, 0.5-1 part of tea polyphenol, 0.05-0.1 part of sodium citrate, 3-5 parts of mulberry leaf extract, 3-4 parts of potato non-starch polysaccharide, 1-2 parts of fructo-oligosaccharide, 2-3 parts of xylo-oligosaccharide, 5-8 parts of konjac polysaccharide, 0.5-1 part of cordyceps militaris polysaccharide, 1-2 parts of lentinan, 2-3 parts of micromolecule pectin, 3-5 parts of chitosan and 50-80 parts of concentrated fruit juice and/or concentrated vegetable juice. The weight-losing and lipid-lowering beverage effectively combines the components of L-carnitine, konjac polysaccharide, micromolecular pectin and the like according to a reasonable proportion, and has low osmotic pressure, so that the body can be promoted to absorb nutrient components.

Description

Low-osmotic-pressure weight-losing and lipid-lowering beverage and production method thereof
Technical Field
The invention relates to the field of food engineering, in particular to a low-osmotic pressure weight-losing and lipid-lowering beverage and a production method thereof.
Background
L-carnitine is a nutrient essential to human body, and its function is closely related to the metabolism of human organs and tissues. It is used as carrier to transport medium-and long-chain fatty acid from outside of mitochondrial membrane to inside of mitochondrial membrane and to perform beta-oxidation in matrix of mitochondria so as to degrade fat.
Meanwhile, the konjac polysaccharide has multiple effects of improving the glycolipid metabolism level, losing weight and reducing fat, promoting the immune function, preventing cell lipid from being oxidized, resisting skin inflammatory factors and the like.
The micromolecular Pectin is called Modified Citrus Pectin (MCP for short), also called Low Molecular Citrus Pectin (LCP for short), is a polysaccharide compound which is extracted from peels and pulps of oranges, lemons, oranges and grapefruits and takes galactose as a main component, and has the pharmacological effects of resisting tumors, aging, viruses, inflammation, ulcer, blood sugar, blood fat, blood coagulation, improving the immunologic function and the like,
however, the existing various beverages for reducing weight and fat have low absorptivity and single nutrition, and none of the beverages can effectively combine the L-carnitine, the konjac polysaccharide and the micromolecule pectin, so that the problem to be solved is urgently needed to develop a beverage which has the components of the L-carnitine, the konjac polysaccharide and the micromolecule pectin and has the effects of reducing weight and fat and high absorptivity.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the weight-losing and lipid-lowering beverage with low osmotic pressure and the production method thereof, the components such as L-carnitine, konjac polysaccharide and micromolecule pectin are effectively combined through reasonable proportion, and meanwhile, the weight-losing and lipid-lowering beverage has low osmotic pressure, so that the absorption of organisms on nutrient components can be promoted.
In order to achieve the purpose, the invention provides the following technical scheme:
provides a low osmotic pressure weight-losing and lipid-lowering beverage, which comprises the following components in parts by weight: 1-2 parts of L-carnitine, 0.5-1 part of tea polyphenol, 0.05-0.1 part of sodium citrate, 3-5 parts of mulberry leaf extract, 3-4 parts of potato non-starch polysaccharide, 1-2 parts of fructo-oligosaccharide, 2-3 parts of xylo-oligosaccharide, 5-8 parts of konjac polysaccharide, 0.5-1 part of cordyceps militaris polysaccharide, 1-2 parts of lentinan, 2-3 parts of micromolecule pectin, 3-5 parts of chitosan and 50-80 parts of concentrated fruit juice and/or concentrated vegetable juice.
Also provides a production method of the low-osmotic-pressure weight-losing and lipid-lowering beverage, which comprises the following steps:
s1, preparing potato non-starch polysaccharide, konjac polysaccharide, cordyceps militaris polysaccharide, lentinan, mulberry leaf extract and micromolecule pectin;
s2, dissolving the L-carnitine, the tea polyphenol, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide in parts by weight in pure water at 50 ℃ to obtain a core material solution; the weight ratio of the total weight of the L-carnitine, the tea polyphenol, the sodium citrate, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide to the pure water is 1: (3-4);
s3, dissolving the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecule pectin and the chitosan in parts by weight in pure water at 60 ℃ to obtain a wall material solution; and the weight ratio of the total weight of the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecular pectin and the chitosan to the pure water is 1: (3-5);
s4, mixing the core material solution, the wall material solution and the emulsifier, performing ultrasonic treatment, performing high-pressure homogenization to obtain an emulsion, and performing spray drying on the emulsion to obtain the weight-reducing and fat-reducing powder;
and S5, mixing the concentrated fruit juice and/or concentrated vegetable juice and sodium citrate with the weight-reducing and fat-reducing powder, sterilizing and filling to obtain the low-osmotic pressure weight-reducing and fat-reducing beverage.
Preferably, the preparation method of the potato non-starch polysaccharide comprises the following steps:
s11, adding distilled water which is 2-3 times of the weight of the potato powder into the potato powder, adjusting the pH value to 5.5-6.5, adding a first complex enzyme which is 1.5-2.5% of the weight of the potato powder for primary enzymolysis, wherein the temperature is 45-55 ℃, and the primary enzymolysis time is 2-3 h; the first compound enzyme is composed of cellulase and beta-glucanase, and the weight ratio of the cellulase to the beta-glucanase is 1: 1; then carrying out microwave treatment on the primary enzymolysis system;
s13, adding a second complex enzyme which is 1-2% of the weight of the potato powder into the primary enzymolysis system which finishes the microwave treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is pH6.5-8.5, the temperature is 50-60 ℃, and the secondary enzymolysis time is 3-5 h; the second complex enzyme is composed of alkaline protease and trypsin, and the weight ratio of the alkaline protease to the trypsin is 1: 1.5; then carrying out double-frequency sweep frequency ultrasonic treatment on the secondary enzymolysis system;
s13, filtering the secondary enzymolysis system processed in the step S13 to obtain clear liquid and filter residues;
s14, adjusting the pH value of the clear liquid to 8-9, adjusting the dimension to 45-55 ℃, adding a third complex enzyme which is 1.0-2.0% of the weight of the clear liquid into the clear liquid for carrying out enzymolysis for three times, wherein the time of enzymolysis for three times is 3-5 h; the third complex enzyme consists of alkaline protease, papain and trypsin in a weight ratio of 1:1: 2;
and S15, adding chloroform-n-butanol into the enzymolysis system after the three times of enzymolysis for extraction, wherein the volume ratio of the enzymolysis system to the chloroform-n-butanol is 4:1, so as to precipitate protein and obtain the potato non-starch polysaccharide solution; and decolorizing, filtering and drying the potato non-starch polysaccharide solution to obtain the potato non-starch polysaccharide.
Preferably, in step S11, the microwave treatment condition is microwave power of 600-.
Preferably, in step S13, the fixed distance between the upper plate and the lower plate is 15cm during the dual-frequency sweep ultrasonic processing, the sweep period is 300S, the ultrasonic is 5S, the pause is 5S, the power of the upper vibrating plate and the lower vibrating plate is 450W, and the ultrasonic power density is 150W/L; the dual-frequency combination is: 40kHz/68kHz, 30-40min of treatment time and 55 ℃ of temperature.
Preferably, the preparation method of the small molecule pectin comprises the following steps:
s21, drying and crushing the raw materials, sieving the raw materials with a 80-mesh sieve to obtain raw material powder, adding 3 times of water by weight into the raw material powder, adjusting the pH to 3.0-3.5, heating the water to 50-60 ℃, and continuously stirring for 35 min;
s22, adding cellulase accounting for 1.0-2.0% of the weight of the raw material powder for primary enzymolysis, wherein the primary enzymolysis condition is pH4.5-6.0, the temperature is 50 ℃, and the primary enzymolysis time is 2-3 h; then carrying out double-frequency sweep frequency ultrasonic treatment on the primary enzymolysis system;
s23, adding pectinase accounting for 1-1.5% of the weight of the raw material powder into a primary enzymolysis system which finishes double-frequency sweep ultrasonic treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is that the pH value is 3.0-4.0, the temperature is 50 ℃, and the secondary enzymolysis time is 3-5 hours; carrying out ultrasonic treatment and stirring simultaneously by secondary enzymolysis, wherein the ultrasonic power is 250W, the ultrasonic treatment time is 12min, and the stirring speed is 100 revolutions per minute;
s24, after the secondary enzymolysis is finished, adding an acetic acid solution with the mass fraction of 5% into an enzymolysis system for acidolysis, wherein the acidolysis time is 2-3 h; the volume ratio of the enzymolysis system to the acetic acid solution is 2: 1;
s25, centrifuging an enzymolysis system after acidolysis to obtain supernatant, and filtering the supernatant sequentially through a ceramic ultrafiltration membrane with the molecular weight cutoff of 3 ten thousand and a ceramic ultrafiltration membrane with the molecular weight cutoff of 1 ten thousand to obtain pectin solution with the molecular weight of 1-3 ten thousand;
s26, carrying out vacuum concentration on the pectin solution with the molecular weight of 1-3 ten thousand to obtain a concentrated solution, carrying out alcohol precipitation on the concentrated solution with the mass fraction of 95%, and separating to obtain a precipitate; and then carrying out vacuum drying on the precipitate to obtain the micromolecule pectin.
Preferably, the preparation methods of the konjac polysaccharide, the cordyceps militaris polysaccharide and the lentinan are the same, and the method comprises the following steps:
drying and crushing the raw materials, sieving the raw materials by a sieve of 80 meshes to obtain raw material powder, and adding deionized water into the raw material powder according to the solid-to-liquid ratio of 1:50 to obtain polysaccharide extraction stock solution;
adjusting pH to 4.5-5.5, adding cellulase 2-3% of the raw material powder, heating water to 50 deg.C, performing enzymolysis for 45-60min, and heating to 80-90 deg.C for 10min to inactivate enzyme; carrying out enzymolysis and ultrasonic treatment; the ultrasonic treatment conditions are ultrasonic power of 180W and 50 ℃ for 60 min;
after the enzymolysis is finished, carrying out vacuum filtration, and carrying out rotary evaporation on the clear liquid until the volume is reduced to 1/3 so as to obtain a polysaccharide crude extract;
decoloring and deproteinizing the polysaccharide crude extract by adopting macroporous adsorption resin, and then freeze-drying to obtain konjac polysaccharide/cordyceps militaris polysaccharide/lentinan; the macroporous adsorption resin decoloration and deproteinization conditions are as follows: the sample loading volume is 150mL, the mass concentration is 2mg/mL, the pH is adjusted to 5, the temperature is 20-25 ℃, and the flow rate is 1.5 BV/h.
Preferably, the preparation method of the mulberry leaf extract comprises the following steps:
s31, drying and crushing folium mori, then heating until boiling, keeping the boiling state for 45min, and filtering to obtain a first filtrate and a first filter residue;
s32, drying the first filter residue, adding ethanol with the volume fraction of 90% 4 times of the weight of the first filter residue into the dried first filter residue, soaking for 1 hour, heating to 60 ℃, and leaching for 1 hour, wherein the stirring is performed once every 10 minutes in the leaching process, and the stirring speed is 220 r/min; then standing for 24 hours at the temperature of 8 ℃, and obtaining a second filtrate and a second filter residue through filtration and separation;
s33, adding ethanol with volume fraction of 90% and weight 3 times of that of the second filter residue into the second filter residue, soaking for 2 hours, heating to 60 ℃, leaching for 2 hours, stirring once every 10 minutes in the leaching process, wherein the stirring speed is 2000 r/min, standing for 24 hours at the temperature of 8 ℃, and filtering and separating to obtain a third filtrate and a first filter residue; combining the first filtrate, the second filtrate and the third filtrate, and freeze-drying to obtain powdered mulberry leaf extract.
Preferably, in step S4, the ultrasonic treatment is a countercurrent ultrasonic treatment, the pulse width is 3S, the pulse interval is 4S, the ultrasonic power density is 55W/L, and the ultrasonic frequency is 28 kHz.
Preferably, in step S4, the high-pressure homogenization conditions are: homogenizing under 20Mpa for 2 times; the feeding temperature in the spray drying process is 50 ℃, the feeding concentration is 12%, the air inlet temperature is 100 ℃, the air outlet temperature is 85 ℃, and the feeding speed is 25 ml/min.
The invention effectively combines the components of L-carnitine, konjac polysaccharide, micromolecular pectin and the like according to a reasonable proportion; meanwhile, a special preparation process is adopted to extract the potato non-starch polysaccharide, so that the potato non-starch polysaccharide, the taro polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecule pectin and the chitosan are used as core materials to embed the L-carnitine, so that the weight-losing and lipid-lowering beverage has low osmotic pressure, and the absorption of organisms on nutrient components can be promoted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the embodiment provides a low-osmotic-pressure weight-losing and lipid-lowering beverage, which comprises the following components in parts by weight: 1 part of L-carnitine, 0.5 part of tea polyphenol, 0.05 part of sodium citrate, 3 parts of mulberry leaf extract, 3 parts of potato non-starch polysaccharide, 2 parts of fructo-oligosaccharide, 3 parts of xylo-oligosaccharide, 5 parts of konjac polysaccharide, 0.5 part of cordyceps militaris polysaccharide, 1 part of lentinan, 2 parts of micromolecule pectin, 3 parts of chitosan and 50 parts of concentrated fruit juice and/or concentrated vegetable juice.
Example 2:
the embodiment provides a low-osmotic-pressure weight-losing and lipid-lowering beverage, which comprises the following components in parts by weight: 2 parts of L-carnitine, 1 part of tea polyphenol, 0.1 part of sodium citrate, 3 parts of mulberry leaf extract, 3 parts of potato non-starch polysaccharide, 2 parts of fructo-oligosaccharide, 3 parts of xylo-oligosaccharide, 8 parts of konjac polysaccharide, 1 part of cordyceps polysaccharide, 2 parts of lentinan, 3 parts of micromolecular pectin, 5 parts of chitosan and 80 parts of concentrated fruit juice and/or concentrated vegetable juice.
Example 3:
the embodiment provides a low-osmotic-pressure weight-losing and lipid-lowering beverage, which comprises the following components in parts by weight: 1.5 parts of L-carnitine, 0.8 part of tea polyphenol, 0.08 part of sodium citrate, 4 parts of mulberry leaf extract, 3.5 parts of potato non-starch polysaccharide, 1.5 parts of fructo-oligosaccharide, 2.5 parts of xylo-oligosaccharide, 7 parts of konjac polysaccharide, 0.8 part of cordyceps militaris polysaccharide, 1.5 parts of lentinan, 2.5 parts of micromolecular pectin, 4 parts of chitosan, and 70 parts of concentrated fruit juice and/or concentrated vegetable juice.
Example 4:
the embodiment provides a production method of a low-osmotic-pressure weight-losing and lipid-lowering beverage, which comprises the following steps:
s1, preparing potato non-starch polysaccharide, konjac polysaccharide, cordyceps militaris polysaccharide, lentinan and mulberry leaf extract;
s2, taking the L-carnitine, the tea polyphenol, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide in the weight parts as described in any one of the embodiments 1 to 3, and adding all the L-carnitine, the tea polyphenol, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide into pure water at 50 ℃ for dissolving to obtain a core material solution; the weight ratio of the total weight of the L-carnitine, the tea polyphenol, the sodium citrate, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide to the pure water is 1: (3-4) (preferably 1: 3.5);
s3, dissolving the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the small molecular pectin and the chitosan in parts by weight in any one of embodiments 1 to 3 in pure water at 60 ℃ to obtain a wall material solution; and the weight ratio of the total weight of the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecular pectin and the chitosan to the pure water is 1: (3-5) (preferably 1: 4);
s4, mixing the core material solution, the wall material solution and the emulsifier, performing ultrasonic treatment, performing high-pressure homogenization to obtain an emulsion, and performing spray drying on the emulsion to obtain the weight-reducing and fat-reducing powder; wherein the ultrasonic treatment is countercurrent ultrasonic treatment, the pulse width is 3s, the pulse interval is 4s, the ultrasonic power density is 55W/L, and the ultrasonic frequency is 28 kHz; the high-pressure homogenizing conditions are as follows: homogenizing under 20Mpa for 2 times; the feeding temperature in the spray drying process is 50 ℃, the feeding concentration is 12%, the air inlet temperature is 100 ℃, the air outlet temperature is 85 ℃, and the feeding speed is 25 ml/min; therefore, related structural groups combined by the core material and the wall material can be fully exposed through countercurrent ultrasonic treatment, so that the combination of the core material and the wall material is firmer, and the embedding rate and the stability of a final embedded product are further improved;
and S5, taking the concentrated fruit juice and/or the concentrated vegetable juice and sodium citrate in the weight portions in any one of the embodiments 1-3, blending, sterilizing and filling the concentrated fruit juice and/or the concentrated vegetable juice and the sodium citrate with the weight-losing and lipid-lowering powder to obtain the low-osmotic-pressure weight-losing and lipid-lowering beverage,
further, the preparation method of the potato non-starch polysaccharide comprises the following steps:
s11, adding distilled water which is 2-3 times of the weight of the potato powder into the potato powder, adjusting the pH value to 5.5-6.5 (preferably 6.0), adding a first complex enzyme which is 1.5-2.5% (preferably 2%) of the weight of the potato powder for primary enzymolysis, wherein the temperature is 45-55 ℃ (preferably 50 ℃), and the primary enzymolysis time is 2-3h (preferably 2.5 ℃); the first compound enzyme is composed of cellulase and beta-glucanase, and the weight ratio of the cellulase to the beta-glucanase is 1: 1; then carrying out microwave treatment on the primary enzymolysis system; the microwave treatment conditions comprise microwave power of 600-800W (preferably 700W) and treatment time of 5-8min (preferably 7 min);
s13, adding a second complex enzyme which is 1-2% of the weight of the potato powder into the primary enzymolysis system which completes the microwave treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is pH6.5-8.5, the temperature is 50-60 ℃ (preferably 55 ℃), and the secondary enzymolysis time is 3-5h (preferably 4 ℃); the second complex enzyme is composed of alkaline protease and trypsin, and the weight ratio of the alkaline protease to the trypsin is 1: 1.5; then carrying out double-frequency sweep frequency ultrasonic treatment on the secondary enzymolysis system; during the double-frequency sweep ultrasonic treatment, the distance between the upper plate and the lower plate is fixed to be 15cm, the sweep period is 300s, the ultrasonic is 5s, the intermittence is 5s, the power of the upper vibrating plate and the lower vibrating plate is 450W, and the ultrasonic power density is 150W/L; the dual-frequency combination is: 40kHz/68kHz, processing time of 30-40min, and temperature control of 55 ℃;
s13, filtering the secondary enzymolysis system processed in the step S13 to obtain clear liquid and filter residues;
s14, adjusting the pH value of the clear liquid to 8-9, adjusting the dimension to 45-55 ℃ (preferably 50 ℃), adding a third complex enzyme with the weight of 1.0-2.0% (preferably 1.5%) of the clear liquid into the clear liquid for carrying out enzymolysis for three times, wherein the enzymolysis time for three times is 3-5 h; the third complex enzyme consists of alkaline protease, papain and trypsin in a weight ratio of 1:1: 2;
and S15, adding chloroform-n-butanol into the enzymolysis system after the three times of enzymolysis for extraction, wherein the volume ratio of the enzymolysis system to the chloroform-n-butanol is 4:1, so as to precipitate protein and obtain the potato non-starch polysaccharide solution; and decolorizing, filtering and drying the potato non-starch polysaccharide solution to obtain the potato non-starch polysaccharide.
In the steps, different enzymes and enzymolysis conditions and double-frequency sweep frequency ultrasonic treatment are adopted, so that the corresponding enzyme activity can be improved, the potato raw material is subjected to full enzymolysis, macromolecules such as starch and the like contained in the potato raw material are hydrolyzed into non-starch polysaccharides, the relative content of the non-starch polysaccharides in the wall material is improved, the non-starch polysaccharides have good water solubility, the dissolution rate of effective components can be improved, and the absorption rate is promoted to be improved. Through detection, the purity of the potato non-starch polysaccharide prepared by the preparation method is 95.7%, and the yield is 87.2%.
Further, the preparation method of the small molecule pectin comprises the following steps:
s21, drying and crushing the raw materials, sieving the raw materials with a 80-mesh sieve to obtain raw material powder, adding 3 times of water by weight into the raw material powder, adjusting the pH to 3.0-3.5, heating the water to 50-60 ℃ (preferably 55 ℃), and continuously stirring for 35 min; the raw material is rich in pectin component, which comprises one or more of citrus reticulata, citrus pomace and lemon pomace;
s22, adding cellulase with the weight of 1.0-2.0% (preferably 1.5%) of the raw material powder for primary enzymolysis, wherein the primary enzymolysis condition is pH4.5-6.0, the temperature is 50 ℃, and the primary enzymolysis time is 2-3 h; then carrying out double-frequency sweep frequency ultrasonic treatment on the primary enzymolysis system;
s23, adding pectinase with the weight of 1-1.5% (preferably 1.2%) of the raw material powder into a primary enzymolysis system which finishes double-frequency sweep ultrasonic treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is that the pH value is 3.0-4.0, the temperature is 50 ℃, and the secondary enzymolysis time is 3-5 h; carrying out ultrasonic treatment and stirring simultaneously by secondary enzymolysis, wherein the ultrasonic power is 250W, the ultrasonic treatment time is 12min, and the stirring speed is 100 revolutions per minute;
s24, after the secondary enzymolysis is finished, adding an acetic acid solution with the mass fraction of 5% into an enzymolysis system for acidolysis, wherein the acidolysis time is 2-3 h; the volume ratio of the enzymolysis system to the acetic acid solution is 2: 1;
s25, centrifuging an enzymolysis system after acidolysis to obtain supernatant, and filtering the supernatant sequentially through a ceramic ultrafiltration membrane with the molecular weight cutoff of 3 ten thousand and a ceramic ultrafiltration membrane with the molecular weight cutoff of 1 ten thousand to obtain pectin solution with the molecular weight of 1-3 ten thousand;
s26, carrying out vacuum concentration on the pectin solution with the molecular weight of 1-3 ten thousand to obtain a concentrated solution, carrying out alcohol precipitation on the concentrated solution with the mass fraction of 95%, and separating to obtain a precipitate; and then carrying out vacuum drying on the precipitate to obtain the micromolecule pectin.
In the steps, macromolecular pectin can be fully degraded by adopting different enzymes, enzymolysis conditions, ultrasonic treatment and acidolysis. Through detection, the yield of the micromolecule pectin with the molecular weight of 1-3 ten thousand prepared by the preparation method can reach 32%, and the PDI value (the dispersion coefficient of a high molecular substance, namely the weight average molecular weight/the number average molecular weight) is 1.86, so that the effects of losing weight and reducing fat can be fully exerted through the synergistic effect of the micromolecule pectin and other components.
Further, the preparation methods of the konjac polysaccharide, the cordyceps militaris polysaccharide and the lentinan are the same, and the method comprises the following steps:
drying and crushing the raw materials, sieving the raw materials by a sieve of 80 meshes to obtain raw material powder, and adding deionized water into the raw material powder according to the solid-to-liquid ratio of 1:50 to obtain polysaccharide extraction stock solution;
adjusting pH to 4.5-5.5, adding cellulase 2-3% of the raw material powder, heating water to 50 deg.C, performing enzymolysis for 45-60min, and heating to 80-90 deg.C for 10min to inactivate enzyme; carrying out enzymolysis and ultrasonic treatment; the ultrasonic treatment conditions are ultrasonic power of 180W and 50 ℃ for 60 min;
after the enzymolysis is finished, carrying out vacuum filtration, and carrying out rotary evaporation on the clear liquid until the volume is reduced to 1/3 so as to obtain a polysaccharide crude extract;
decoloring and deproteinizing the polysaccharide crude extract by adopting macroporous adsorption resin, and then freeze-drying to obtain konjac polysaccharide/cordyceps militaris polysaccharide/lentinan; the macroporous adsorption resin decoloration and deproteinization conditions are as follows: the sample loading volume is 150mL, the mass concentration is 2mg/mL, the pH is adjusted to 5, the temperature is 20-25 ℃, and the flow rate is 1.5 BV/h.
In the steps, proper enzyme is adopted for enzymolysis, the cell walls of the raw materials are broken by utilizing the cavitation and mechanical action of ultrasonic waves, and the macroporous adsorption resin adsorbs, decolors and deproteinizes, so that the polysaccharides can be better released, the extraction rate is improved, and the functional activities of the konjac polysaccharides, the cordyceps militaris polysaccharides and the lentinan are fully exerted. Through detection, the extraction rates of the konjac polysaccharide, the cordyceps militaris polysaccharide and the lentinan prepared by the preparation method can respectively reach 16%, 23% and 9%.
Further, the preparation method of the mulberry leaf extract comprises the following steps:
s31, drying and crushing folium mori, then heating until boiling, keeping the boiling state for 45min, and filtering to obtain a first filtrate and a first filter residue;
s32, drying the first filter residue, adding ethanol with the volume fraction of 90% 4 times of the weight of the first filter residue into the dried first filter residue, soaking for 1h, heating to 60 ℃, and leaching for 1h, wherein the stirring is carried out once every 10min in the leaching process, and the stirring speed is 220 r/min; then standing for 24 hours at the temperature of 8 ℃, and obtaining a second filtrate and a second filter residue through filtration and separation;
s33, adding ethanol with volume fraction of 90% and weight 3 times of that of the second filter residue into the second filter residue, soaking for 2 hours, heating to 60 ℃, leaching for 2 hours, stirring once every 10 minutes in the leaching process, wherein the stirring speed is 2000 r/min, standing for 24 hours at the temperature of 8 ℃, and filtering and separating to obtain a third filtrate and a first filter residue; combining the first filtrate, the second filtrate and the third filtrate, and freeze-drying to obtain powdered mulberry leaf extract.
In the steps, functional active substances in the mulberry leaves are fully dissolved out through multiple soaking and extraction, and a large number of bioactive components are reserved, so that the effects of losing weight and reducing fat can be fully exerted through the synergistic effect of the functional components of the mulberry leaf extract and other components.
1. Osmotic pressure of test sample
Using a freezing point osmotic pressure tester, 80mOsm/kg, 500mOsm/kg calibration solution and 290mOsm/kg calibration solution are all produced and provided by a manufacturer in a matching way, and by adopting a freezing point method, the osmotic pressure of the low-osmotic pressure weight-reducing and lipid-lowering beverage is respectively tested on examples 1-3, a control group (commercially available weight-reducing and lipid-lowering beverage) and a blank group (placebo), and the test results are shown in Table 1.
TABLE 1 osmotic pressure of the experimental samples
Figure BDA0003529802130000101
As can be seen from Table 1, the osmotic pressure of the low-osmotic-pressure weight-losing and lipid-lowering beverage of the invention is significantly lower than that of the commercially available weight-losing and lipid-lowering beverage, and the potato non-starch polysaccharide, the konjac polysaccharide and the like dissolved in water can be preferentially absorbed by the intestinal wall along with the water due to the relatively low osmotic pressure and the passive transport.
2. Experiments on fat-reducing animals
60 ICR male mice (20g +/-2 g) are taken, after the common maintenance feed is adapted for 1 week, the ICR male mice are randomly divided into 8 groups, 10 ICR male mice are taken in each group, 7 ICR male mice except a blank control group continue to be fed with the common feed, the 7 ICR male mice are fed with high-fat feed to carry out molding on the obese rats, the molding period is about 3 weeks, and the molding success is determined when the weight of the ICR male mice exceeds 20% of that of the blank group. After the model building is successful, the obese rats are randomly divided into an obese model group, a positive control group (orlistat), a sports intervention group, a diet intervention group (namely, the hyposmosis weight-reducing and lipid-lowering drink of the invention for intragastric administration, hereinafter referred to as the weight-reducing and lipid-lowering drink), a sports and diet intervention low-medium/high dose group, the weight-reducing and lipid-lowering drink in the embodiments 1 to 3 of the invention and the commercial L-carnitine capsules (namely, the comparative example 1) are intragastric administered according to different groups at the doses of 150mg/kg, 100mg/kg and 50mg/kg, the intragastric administration is continuously carried out for 6 weeks, and the distilled water with the same dose is administered for intragastric administration in a normal control group and an obese model group. The exercise intervention adopts the running platform training, the running speed is 25m/min, the training is carried out for 6 days every week, and the rest is carried out every day. The mice were observed daily for food intake, water intake, mental state, etc., and body weights were measured 1 time per week. The results are shown in Table 2.
TABLE 2 weight status of mice before and after feeding
Figure BDA0003529802130000111
As shown in Table 2, the low-osmotic-pressure weight-losing and lipid-lowering beverage has a certain weight-losing effect by simple exercise intervention or diet intervention, but the exercise intervention and diet intervention are combined, namely the high, medium and low dose group which is intragastrically infused with the low-osmotic-pressure weight-losing and lipid-lowering beverage and exercises has different effects of controlling the weight gain of mice. The low-osmotic pressure weight-losing and lipid-lowering beverage is particularly suitable for athletes and other heavy physical exercisers to quickly supplement water and electrolytes lost by mass sweating, supply sugar, prevent the blood sugar content from decreasing, and further enhance the activity of human bodies. For supplementing water and improving endurance after exercise, the hypotonic beverage has advantages over isotonic beverages.
Furthermore, after the mice of the experimental groups were fed for the last time, the mice were fasted for 10 hours, and blood was taken from the abdominal aorta after the anesthesia with chloral hydrate. After the blood sample was allowed to stand at room temperature for 30min, serum was obtained by centrifugation at 4000r/min, and the concentrations of high density lipoprotein (HDL-C) and low density lipoprotein (LDL-C) were measured according to the kit instructions, and the results are shown in Table 3.
TABLE 3 HDL-C (mmol/L) and LDL-C (mmol/L) concentration profile in rats before and after feeding
Figure BDA0003529802130000121
As can be seen from table 3 above: the LDL-C content in the serum of the mouse in the model group is obviously higher than that of the normal control group, and the HDL-C content is obviously lower than that of the normal control group, which indicates that the mouse hyperlipidemia model is successfully established; the low-density lipoprotein serving as lipoprotein particles for carrying cholesterol into peripheral tissue cells is deposited on parts such as heart and cerebral vessels when the content in a machine body is too high, so that the harm of blocking the vessels is gradually caused, the diseases such as coronary heart disease and the like are indirectly caused, and certain damage is caused to the heart; the high-density lipoprotein can prevent free cholesterol from depositing on extrahepatic tissue cells, can cause the occurrence of coronary heart disease of a body when the content is too low, and can delay the development of atherosclerosis of the body to a certain extent when the content is increased. The high, medium and low dose of the low-osmotic pressure weight-losing and lipid-lowering beverage can obviously improve the concentration of HDL-C, LDL-C in serum of mice respectively, wherein the improvement effect of a high dose group is most obvious. Therefore, the selenium-rich weight-losing and lipid-lowering product can effectively control the concentration of HDL-C, LDL-C and has a high-efficiency lipid-lowering effect.
In conclusion, the invention effectively combines the components of L-carnitine, konjac polysaccharide, micromolecular pectin and the like according to a reasonable proportion; meanwhile, a special preparation process is adopted to extract the potato non-starch polysaccharide, so that the potato non-starch polysaccharide, the taro polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecule pectin and the chitosan are used as core materials to embed the L-carnitine, so that the weight-losing and lipid-lowering beverage has low osmotic pressure, and the absorption of organisms on nutrient components can be promoted.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A low-osmotic pressure weight-losing and lipid-lowering beverage is characterized by comprising the following components in parts by weight: 1-2 parts of L-carnitine, 0.5-1 part of tea polyphenol, 0.05-0.1 part of sodium citrate, 3-5 parts of mulberry leaf extract, 3-4 parts of potato non-starch polysaccharide, 1-2 parts of fructo-oligosaccharide, 2-3 parts of xylo-oligosaccharide, 5-8 parts of konjac polysaccharide, 0.5-1 part of cordyceps militaris polysaccharide, 1-2 parts of lentinan, 2-3 parts of micromolecule pectin, 3-5 parts of chitosan and 50-80 parts of concentrated fruit juice and/or concentrated vegetable juice.
2. The production method of the low-osmotic-pressure weight-losing and lipid-lowering beverage is characterized by comprising the following steps of:
s1, preparing potato non-starch polysaccharide, konjac polysaccharide, cordyceps militaris polysaccharide, lentinan, mulberry leaf extract and micromolecule pectin;
s2, taking the L-carnitine, the tea polyphenol, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide in the weight parts as described in claim 1, and adding all the L-carnitine, the tea polyphenol, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide into pure water at 50 ℃ for dissolving to obtain a core material solution; the weight ratio of the total weight of the L-carnitine, the tea polyphenol, the sodium citrate, the mulberry leaf extract, the fructo-oligosaccharide and the xylo-oligosaccharide to the pure water is 1: (3-4);
s3, dissolving the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecule pectin and the chitosan in parts by weight of the components in the claim 1 in pure water at 60 ℃ to obtain a wall material solution; and the weight ratio of the total weight of the potato non-starch polysaccharide, the konjac polysaccharide, the cordyceps militaris polysaccharide, the lentinan, the micromolecular pectin and the chitosan to the pure water is 1: (3-5);
s4, mixing the core material solution, the wall material solution and the emulsifier, performing ultrasonic treatment, performing high-pressure homogenization to obtain an emulsion, and performing spray drying on the emulsion to obtain the weight-reducing and fat-reducing powder;
and S5, taking the concentrated fruit juice and/or the concentrated vegetable juice and the sodium citrate according to the parts by weight of the claim 1, blending, sterilizing and filling the concentrated fruit juice and/or the concentrated vegetable juice and the sodium citrate with the weight-reducing and fat-reducing powder to obtain the low-osmotic-pressure weight-reducing and fat-reducing beverage.
3. The method of claim 2, wherein the potato non-starch polysaccharide is prepared by a method comprising:
s11, adding distilled water which is 2-3 times of the weight of the potato powder into the potato powder, adjusting the pH to 5.5-6.5, adding a first compound enzyme which is 1.5-2.5% of the weight of the potato powder, and performing primary enzymolysis at 45-55 ℃ for 2-3 h; the first compound enzyme is composed of cellulase and beta-glucanase, and the weight ratio of the cellulase to the beta-glucanase is 1: 1; then carrying out microwave treatment on the primary enzymolysis system;
s13, adding a second complex enzyme which is 1-2% of the weight of the potato powder into the primary enzymolysis system which finishes the microwave treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is pH6.5-8.5, the temperature is 50-60 ℃, and the secondary enzymolysis time is 3-5 h; the second complex enzyme is composed of alkaline protease and trypsin, and the weight ratio of the alkaline protease to the trypsin is 1: 1.5; then carrying out double-frequency sweep frequency ultrasonic treatment on the secondary enzymolysis system;
s13, filtering the secondary enzymolysis system processed in the step S13 to obtain clear liquid and filter residues;
s14, adjusting the pH value of the clear liquid to 8-9, adjusting the dimension to 45-55 ℃, adding a third complex enzyme with the weight of 1.0-2.0% of the clear liquid into the clear liquid for carrying out third enzymolysis for 3-5 h; the third complex enzyme consists of alkaline protease, papain and trypsin in a weight ratio of 1:1: 2;
and S15, adding chloroform-n-butanol into the enzymolysis system after the three times of enzymolysis for extraction, wherein the volume ratio of the enzymolysis system to the chloroform-n-butanol is 4:1, so as to precipitate protein and obtain the potato non-starch polysaccharide solution; and decolorizing, filtering and drying the potato non-starch polysaccharide solution to obtain the potato non-starch polysaccharide.
4. The method as claimed in claim 3, wherein in step S11, the microwave processing conditions are microwave power of 600- & 800W and processing time of 5-8 min.
5. The production method according to claim 3, wherein in step S13, the fixed upper and lower plate spacing is 15cm during the dual frequency sweep ultrasonic treatment, the sweep period is 300S, the ultrasonic treatment is 5S, the pause is 5S, the upper and lower vibrating plate powers are both 450W, and the ultrasonic power density is 150W/L; the dual-frequency combination is: 40kHz/68kHz, 30-40min of treatment time and 55 ℃ of temperature.
6. The method of claim 2, wherein the small pectin is prepared by a method comprising:
s21, drying and crushing the raw materials, sieving the raw materials with a 80-mesh sieve to obtain raw material powder, adding 3 times of water by weight into the raw material powder, adjusting the pH to 3.0-3.5, heating the water to 50-60 ℃, and continuously stirring for 35 min;
s22, adding cellulase accounting for 1.0-2.0% of the weight of the raw material powder for primary enzymolysis, wherein the primary enzymolysis condition is pH4.5-6.0, the temperature is 50 ℃, and the primary enzymolysis time is 2-3 h; then carrying out double-frequency sweep frequency ultrasonic treatment on the primary enzymolysis system;
s23, adding pectinase accounting for 1-1.5% of the weight of the raw material powder into a primary enzymolysis system which finishes double-frequency sweep ultrasonic treatment for secondary enzymolysis, wherein the secondary enzymolysis condition is that the pH value is 3.0-4.0, the temperature is 50 ℃, and the secondary enzymolysis time is 3-5 hours; carrying out ultrasonic treatment and stirring simultaneously by secondary enzymolysis, wherein the ultrasonic power is 250W, the ultrasonic treatment time is 12min, and the stirring speed is 100 revolutions per minute;
s24, after the secondary enzymolysis is finished, adding an acetic acid solution with the mass fraction of 5% into an enzymolysis system for acidolysis, wherein the acidolysis time is 2-3 h; the volume ratio of the enzymolysis system to the acetic acid solution is 2: 1;
s25, centrifuging an enzymolysis system after acidolysis to obtain supernatant, and filtering the supernatant sequentially through a ceramic ultrafiltration membrane with the molecular weight cutoff of 3 ten thousand and a ceramic ultrafiltration membrane with the molecular weight cutoff of 1 ten thousand to obtain pectin solution with the molecular weight of 1-3 ten thousand;
s26, carrying out vacuum concentration on the pectin solution with the molecular weight of 1-3 ten thousand to obtain a concentrated solution, carrying out alcohol precipitation on the concentrated solution with the mass fraction of 95%, and separating to obtain a precipitate; and then carrying out vacuum drying on the precipitate to obtain the micromolecule pectin.
7. The production method of claim 2, wherein the preparation methods of the konjac polysaccharide, the cordyceps militaris polysaccharide and the lentinan are the same, and comprise the following steps:
drying and crushing the raw materials, sieving the raw materials by a sieve of 80 meshes to obtain raw material powder, and adding deionized water into the raw material powder according to the solid-to-liquid ratio of 1:50 to obtain polysaccharide extraction stock solution;
adjusting pH to 4.5-5.5, adding cellulase 2-3% of the raw material powder, heating water to 50 deg.C, performing enzymolysis for 45-60min, and heating to 80-90 deg.C for 10min to inactivate enzyme; carrying out enzymolysis and ultrasonic treatment; the ultrasonic treatment conditions are that the ultrasonic power is 180W, the temperature is 50 ℃, and the ultrasonic treatment is carried out for 60 min;
after the enzymolysis is finished, carrying out vacuum filtration, and carrying out rotary evaporation on the clear liquid until the volume is reduced to 1/3 so as to obtain a polysaccharide crude extract;
decoloring and deproteinizing the polysaccharide crude extract by adopting macroporous adsorption resin, and then freeze-drying to obtain konjac polysaccharide/cordyceps militaris polysaccharide/lentinan; the macroporous adsorption resin decoloration and deproteinization conditions are as follows: the sample loading volume is 150mL, the mass concentration is 2mg/mL, the pH is adjusted to 5, the temperature is 20-25 ℃, and the flow rate is 1.5 BV/h.
8. The method of claim 2, wherein the mulberry leaf extract is prepared by a method comprising:
s31, drying and crushing folium mori, then heating until boiling, keeping the boiling state for 45min, and filtering to obtain a first filtrate and a first filter residue;
s32, drying the first filter residue, adding ethanol with the volume fraction of 90% 4 times of the weight of the first filter residue into the dried first filter residue, soaking for 1h, heating to 60 ℃, leaching for 1h, and stirring once every 10min in the leaching process, wherein the stirring speed is 220 r/min; then standing for 24 hours at the temperature of 8 ℃, and obtaining a second filtrate and a second filter residue through filtration and separation;
s33, adding ethanol with volume fraction of 90% and weight 3 times of that of the second filter residue into the second filter residue, soaking for 2 hours, heating to 60 ℃, leaching for 2 hours, stirring once every 10 minutes in the leaching process, wherein the stirring speed is 2000 r/min, standing for 24 hours at the temperature of 8 ℃, and filtering and separating to obtain a third filtrate and a first filter residue; combining the first filtrate, the second filtrate and the third filtrate, and freeze-drying to obtain powdered mulberry leaf extract.
9. The production method according to claim 2, wherein the ultrasonic treatment is a countercurrent ultrasonic treatment with a pulse width of 3S, a pulse interval of 4S, an ultrasonic power density of 55W/L, and an ultrasonic frequency of 28kHz in step S4.
10. The production method according to claim 2, wherein in step S4, the high-pressure homogenization conditions are: homogenizing under 20Mpa for 2 times; the feeding temperature in the spray drying process is 50 ℃, the feeding concentration is 12%, the air inlet temperature is 100 ℃, the air outlet temperature is 85 ℃, and the feeding speed is 25 ml/min.
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