CN110604299B - Rosa roxburghii mushroom oral liquid and preparation method thereof - Google Patents

Rosa roxburghii mushroom oral liquid and preparation method thereof Download PDF

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CN110604299B
CN110604299B CN201911011066.XA CN201911011066A CN110604299B CN 110604299 B CN110604299 B CN 110604299B CN 201911011066 A CN201911011066 A CN 201911011066A CN 110604299 B CN110604299 B CN 110604299B
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mushroom
oral liquid
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roxburgh rose
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CN110604299A (en
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夏晚霞
杨继国
刘丹
徐晓飞
刘玮
王云
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South China Institute of Collaborative Innovation
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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
    • A23L31/00Edible extracts or preparations of fungi; Preparation or treatment thereof
    • 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
    • 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
    • A23L33/135Bacteria or derivatives thereof, e.g. probiotics
    • 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
    • A23L33/14Yeasts or derivatives thereof
    • 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 roxburgh rose mushroom oral liquid and a preparation method thereof. The invention firstly ferments mushrooms, then mixes mushroom fermentation liquor containing various organic acids and with low pH value with fresh roxburgh rose fruits, juices the mixture, and then mixes and ferments the mixture through probiotics to obtain the roxburgh rose mushroom oral liquid. The method effectively inhibits the oxidation of Vc and polyphenol through probiotic mixed fermentation, the roxburgh rose can still keep higher Vc and polyphenol contents in the pretreatment and long-time fermentation processes, and meanwhile, acetobacter is used for fermentation in the later long-time fermentation, so that various fungus polysaccharides in the fermentation liquor are not consumed, and the fermentation liquor obtained after the fermentation is finished contains high-content fungus polysaccharides.

Description

Rosa roxburghii mushroom oral liquid and preparation method thereof
Technical Field
The invention belongs to the technical field of food biological fermentation, and particularly relates to a roxburgh rose mushroom oral liquid and a preparation method thereof.
Background
The rosa roxburghii tratt fruit has unique flavor and higher nutritional value, is characterized by high content of ascorbic acid (Vc) and SOD activity, has wild distribution in Guizhou, yunnan, sichuan, hunan and other places in China, particularly the Guizhou high-yield, which is called the king of vitamin C. The fructus Rosae Normalis has Vc content of 21.85-22.54mg/g, and has effects of resisting aging, prolonging female puberty, enhancing immunity, and resisting tumor. Because of the poor stability of Vc, metal ions, antioxidants, pH values, and too low or too high temperatures can accelerate the decomposition speed of Vc. Wherein the metal ions are mainly Cu 2+ 、Zn 2+ And Fe 3+ Has obvious catalytic effect on Vc. The research finds that: in the alkaline range, vcThe oxidation rate is generally higher than the acidic range, indicating that vitamin C is more stable in acidic media than in alkaline media.
The Rosa roxburghii polyphenol is an important active substance with the antioxidation effect of Rosa roxburghii, and the polyphenol widely exists in the Rosa roxburghii fruits and has quite important effects on the health and the nutrition balance of human bodies. Polyphenols are polar compounds containing hydroxyl and benzene ring, including flavonoids, phenolic acid, tannin (hydrolysis and condensation), stilbene, lignin, etc., and have good effects in resisting inflammation, resisting tumor, protecting liver, resisting oxidation, scavenging free radicals, inhibiting bacteria, etc. In addition, the component can also effectively inhibit body damage caused by active oxygen and free radicals, absorb most of strong ultraviolet radiation of 200-300 nm in sunlight, and play a role of an ultraviolet filter. Thus, plant polyphenols are called "seventh group nutrients" in japan, following the sixth nutrient dietary fiber.
Polyphenol Oxidase (PPO) is a major enzyme causing enzymatic browning of fruits and vegetables, and PPO catalyzes the oxidation of polyphenols to quinones, which polymerize and react with amino acids of intracellular proteins, resulting in the precipitation of melanin. PPO is present in cells except chloroplasts and mitochondria, and the cell wall can also exist, and the PPO has the function only by slight damage of the cells. To prevent polyphenol oxidation, polyphenol oxidase activity should be inhibited during Rosa roxburghii Tratt treatment and deep processing.
The mushroom polysaccharide belongs to fungus polysaccharide, has various biological activities of improving immunity, resisting tumor, resisting aging, reducing blood sugar and blood fat, resisting inflammation, resisting virus and the like, can improve human immunity and regulate intestinal microorganisms, and has high physiological and pharmacological effects, so the mushroom polysaccharide is also called as a biological response effector. Researches show that the microbial fermentation can utilize macromolecular polysaccharide substances as energy substances under certain conditions, so that the consumption of probiotics to mushroom polysaccharide needs to be avoided in the process of preparing mushroom fermented oral liquid.
At present, the common health-care roxburgh rose beverage is mainly a magnetic fruit juice beverage, and is treated by adopting a squeezing juice-taking method, most of nutritional ingredients of roxburgh rose fruits are reserved, but the fruit juice is turbid, the impurity content is high, and the polyphenol oxidase is easy to oxidize and brown under the action of juicing and deep processing processes, so that the loss of roxburgh rose polyphenol and Vc is caused, the color and luster become dark, the nutritional ingredients in the beverage are unbalanced, and the nutritional structure is changed. The roxburgh rose juice contains a large amount of polyphenol substances such as tannin, and has strong astringent taste and influences the mouthfeel.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention mainly aims to provide a preparation method of a roxburgh rose mushroom oral liquid. The degradation of Vc, the oxidation of polyphenol and the consumption of polysaccharide are effectively avoided in the process of preparing the roxburgh rose mushroom oral liquid by fermentation. The method comprises fermenting mushroom to generate fragrant components, improve taste, generate multiple organic acids, and reduce pH; the mushroom fermentation liquid containing various organic acids and low pH value and fresh roxburgh rose fruit are mixed and squeezed, and the endogenous polyphenol oxidase activity and Vc oxidation can be effectively inhibited. The oxidation of Vc and polyphenol is reduced in the long-term fermentation process of the fermentation liquor by the mixed fermentation of probiotics. The rosa roxburghii tratt can still keep higher Vc and polyphenol content in the pretreatment and long-time fermentation processes, meanwhile, the acetobacter utilizes ethanol as an energy substance to produce various organic acids by fermentation, and various mushroom polysaccharides in fermentation liquor are not consumed, so that the fermentation liquor obtained after the fermentation is finished contains high-content mushroom polysaccharides.
The invention also aims to provide the roxburgh rose mushroom oral liquid prepared by the method.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a roxburgh rose mushroom oral liquid comprises the following steps:
(1) Removing roots of mushrooms, cleaning and pulping to obtain mushroom pulp;
(2) Adding a sugar source into the mushroom pulp, inoculating saccharomycetes and lactic acid bacteria, performing primary fermentation for 20-72 hours, filtering and removing slag after the primary fermentation is finished to obtain primary fermentation liquid, inoculating acetobacter and performing secondary fermentation for 36-96 hours to obtain secondary fermentation liquid;
wherein the inoculation amount of the microzyme and the lactobacillus accounts for 0.5 to 2 per mill and 0.1 to 0.5 per mill of the mass of the mushroom pulp respectively, and the inoculation amount of the acetobacter accounts for 0.2 to 0.8 per mill of the mass of the first fermentation liquor;
(3) Adding the roxburgh rose into the second fermentation liquor, pulping, standing, and filtering to remove residues to obtain a slurry;
(4) Inoculating acetobacter into the slurry, fermenting until the mass concentration of ethanol in the fermentation liquor is reduced to 5 per mill or below, and ending fermentation to obtain fermentation liquor; wherein the inoculation amount of the acetobacter accounts for 0.05-0.2 per mill of the mass of the slurry;
(5) Adding sugar into the fermentation broth, sterilizing, and canning to obtain the oral liquid.
The mushroom in the step (1) is preferably at least one of oyster mushroom, mushroom and phoenix mushroom.
The sugar source in the step (2) is preferably sucrose. The amount of the sugar source added is preferably 3 to 16% by mass, more preferably 6 to 10% by mass of the mushroom syrup.
The yeast in the step (2) is preferably Saccharomyces cerevisiae (Saccharomyces cerevisiae); the lactobacillus is at least one of lactobacillus plantarum, lactobacillus bulgaricus and lactobacillus paracasei.
And (3) preferably, uniformly mixing the yeast and the lactic acid bacteria, and then inoculating the mixed bacteria.
The inoculation amount of the microzyme in the step (2) is preferably 0.8-1.5 per mill of the mass of the mushroom serous fluid. The inoculation amount of the acetobacter is preferably 0.4-0.6 per mill of the mass of the first fermentation liquor.
The temperature of the first fermentation in the step (2) is preferably 28-35 ℃, and the time is preferably 24-36 h; the temperature of the second fermentation is preferably 28-32 ℃, and the time is preferably 36-72 h.
The roxburgh rose in the step (3) is preferably fresh roxburgh rose fruit, and the roxburgh rose needs to be cleaned and drained before being added into the second fermentation liquid.
The mass ratio of the roxburgh rose in the step (3) to the second fermentation broth is preferably 1: (0.1 to 0.8), more preferably 1: (0.3-0.5).
The pH value of the second fermentation liquid in the step (3) is preferably 3.4-4.1.
The standing time in the step (3) is preferably 16 to 48 hours, and preferably 24 to 36 hours.
The inoculation amount of the acetobacter in the step (4) accounts for 0.08-0.12 per mill of the mass of the serous fluid.
And (4) the fermentation temperature in the step (4) is the same as that of the second fermentation in the step (2).
The sugar in step (5) is preferably at least one of isomaltooligosaccharide, fructooligosaccharide and maltitol.
The adding amount of the sugar in the step (5) is preferably 10-50% of the mass of the fermentation liquor.
A fructus Rosae Normalis mushroom oral liquid is prepared by the above method.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the method effectively inhibits the oxidation of Vc and polyphenol through probiotic mixed fermentation, the rosa roxburghii tratt can still keep higher Vc and polyphenol contents in the pretreatment and long-time fermentation processes, meanwhile, acetobacter is used for fermentation in the later long-time fermentation, and various fungus polysaccharides in the fermentation liquor are not consumed, so that the fermentation liquor obtained after the fermentation is finished contains high-content fungus polysaccharides.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The method of the present invention has general applicability to yeast, lactic acid bacteria and acetic acid bacteria, and the strains used in the examples and comparative examples are commercially available powder yeast, wherein the yeast is Saccharomyces cerevisiae, which is available under the trade name Mei Shangan yeast (Saccharomyces cerevisiae, 15g dry yeast from meishan), which is available from invitro marie, lactobacillus acidophilus (product No. CB 969), lactobacillus plantarum (product No. LP-600), lactobacillus bulgaricus (product No. LB-690), and Lactobacillus paracasei (product No. LP-639), which are available from agroin biotechnology (shanghai) limited.
The methods in the examples and comparative examples are conventional methods unless otherwise specified, and the reagents used are conventional commercially available reagents or reagents prepared by conventional methods unless otherwise specified; no water is needed for pulping.
Example 1
1. Mushroom pretreatment: cleaning the root-removed and non-rotten oyster mushrooms and phoenix mushrooms, drying surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 6% sucrose into mushroom slurry, inoculating mixed bacteria of yeast and lactobacillus for primary fermentation, wherein the lactobacillus is Lactobacillus plantarum and Lactobacillus bulgaricus, mixing yeast and lactobacillus, inoculating, and slightly stirring; inoculating 0.8 per mill of yeast, mixing lactobacillus plantarum and lactobacillus bulgaricus lactic acid in equal amount, inoculating 0.1 per mill, fermenting at 33 deg.C for 36 hr, and filtering to remove residue to obtain first fermentation broth; inoculating 0.4 per mill (accounting for the first fermentation broth) of acetobacter, performing second fermentation at 32 ℃, and fermenting for 72 hours, wherein the pH value of the fermentation broth is 4.07 after the fermentation is finished.
3. Pre-treating the roxburgh rose: cleaning and draining the whole fresh roxburgh rose fruit without branches, canker and insect pests, mixing the roxburgh rose fruit with the second mushroom fermentation liquid obtained in the step 2 according to the mass ratio of 1.3, pulping, standing for 36 hours, and filtering to remove residues to obtain pulp.
4. Mixing and fermenting: inoculating 0.08 per mill (accounting for the mass of the serous fluid) of acetobacter into the serous fluid in the step 3, and continuing standing and fermenting at 32 ℃ until the content of ethanol in the fermentation liquor is reduced to 0, and ending the fermentation to obtain the fermentation liquor.
5. Adding isomaltooligosaccharide (accounting for 25% of the mass of the fermentation broth) into the fermentation broth obtained in the step 4, and blending; sterilizing the obtained blended liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
Example 2
1. Mushroom pretreatment: cleaning the oyster mushrooms and the mushrooms without rotting after roots are removed, drying the surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 8% sucrose into mushroom slurry, inoculating mixed bacteria of yeast and lactobacillus for primary fermentation, wherein the lactobacillus is Lactobacillus plantarum and Lactobacillus paracasei, mixing yeast and lactobacillus, inoculating, and slightly stirring; inoculating 1.2 per mill of yeast, and 0.3 per mill of lactobacillus plantarum and lactobacillus bulgaricus lactic acid, mixing, performing primary fermentation at 31 deg.C for 30 hr, and filtering to remove residue to obtain primary fermentation liquid; inoculating 0.5 per mill (accounting for the first fermentation broth) of acetobacter, and performing second fermentation at 30 ℃ for 48h, wherein the pH value of the fermentation broth is 3.89 after the fermentation is finished.
3. Pre-treating the roxburgh rose: cleaning and draining the whole fresh roxburgh rose fruit without branches, canker and insect pests, mixing the roxburgh rose fruit with the second mushroom fermentation liquid obtained in the step 2 according to the mass ratio of 1.
4. Mixing and fermenting: inoculating 0.1 per mill (accounting for the mass of the serous fluid) of acetobacter into the serous fluid in the step 3, and continuing standing and fermenting at 30 ℃ until the content of ethanol in the fermentation liquor is reduced to 0, and ending the fermentation to obtain the fermentation liquor.
5. Adding maltitol (accounting for 20 percent of the mass of the fermentation liquor) into the fermentation liquor obtained in the step 4 for blending; sterilizing the obtained blended liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
Example 3
1. Mushroom pretreatment: cleaning the mushroom and the phoenix mushroom without rotting after removing roots, drying the surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 10% sucrose into mushroom slurry, inoculating mixed bacteria of yeast and lactobacillus for primary fermentation, wherein the lactobacillus is Lactobacillus paracasei and Lactobacillus bulgaricus, mixing yeast and lactobacillus, inoculating, and slightly stirring; inoculating 1.5 per mill of yeast, mixing lactobacillus plantarum and lactobacillus bulgaricus lactic acid in equal amount, inoculating 0.5 per mill, performing first fermentation at 30 deg.C for 24 hr, and filtering to remove residue to obtain first fermentation liquid; inoculating 0.6 per mill (accounting for the first fermentation broth) of acetobacter, performing second fermentation at 28 ℃, and fermenting for 36 hours, wherein the pH value of the fermentation broth is 3.47 after the fermentation is finished.
3. Pre-treating the roxburgh rose: cleaning and draining the whole fresh roxburgh rose fruit without branches, canker and insect pests, mixing the roxburgh rose fruit with the second mushroom fermentation liquid obtained in the step 2 according to the mass ratio of 1.
4. Mixing and fermenting: inoculating 0.3 per mill (accounting for the mass of the serous fluid) of acetobacter into the serous fluid in the step 3, and continuing standing and fermenting at 28 ℃ until the content of ethanol in the fermentation liquor is reduced to 0, and ending the fermentation to obtain the fermentation liquor.
5. Adding fructo-oligosaccharide (accounting for 30% of the mass of the fermentation liquor) into the fermentation liquor obtained in the step (4) for blending; sterilizing the obtained blended liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
Comparative example 1
1. Mushroom pretreatment: cleaning the rotten oyster mushrooms and phoenix mushrooms after root removal, drying the surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 6% sucrose into mushroom slurry, inoculating mixed bacteria of yeast and lactobacillus for primary fermentation, wherein the lactobacillus is Lactobacillus plantarum and Lactobacillus bulgaricus, mixing yeast and lactobacillus, inoculating, and slightly stirring; inoculating 0.8 per mill of yeast, mixing lactobacillus plantarum and lactobacillus bulgaricus lactic acid in equal amount, inoculating 0.1 per mill, fermenting at 33 deg.C for 36 hr, and filtering to remove residue to obtain first fermentation broth; inoculating 0.4 per mill (accounting for the first fermentation broth) of acetobacter, performing second fermentation at 32 ℃, and fermenting for 72 hours, wherein the pH value of the fermentation broth is 4.07 after the fermentation is finished.
3. Pre-treating the roxburgh rose: cleaning fresh fructus Rosae Normalis without branch, canker and insect pest, draining, pulping, standing for 40 hr, and filtering to remove residue to obtain pulp.
4. Mixing and fermenting: and (3) mixing the pulp obtained in the step (3) and the second fermentation liquor obtained in the step (2) according to a mass ratio to obtain a mixed liquor, inoculating 0.08 per mill (accounting for the mass of the mixed liquor) of acetobacter aceti according to the mass ratio of 1 to 0.3 of the fresh roxburgh rose fruit in the pulp obtained in the step (3) to the fermentation liquor obtained in the step (2), continuing standing and fermenting at 32 ℃, and ending fermentation until the content of ethanol in the fermentation liquor is reduced to 0 to obtain the fermentation liquor.
5. Adding isomaltooligosaccharide (accounting for 25% of the mass of the fermentation product) into the fermentation liquor obtained in the step 4 for blending; sterilizing the obtained blended liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
Comparative example 2
1. Mushroom pretreatment: cleaning the rotten oyster mushrooms and phoenix mushrooms after root removal, drying the surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 6% sucrose into mushroom slurry, inoculating yeast with 0.8 ‰ (based on mushroom slurry mass), fermenting at 32 deg.C for 36 hr, and adjusting pH of the fermentation liquid to 5.72.
3. Pre-treating roxburgh rose: cleaning and draining fresh and complete roxburgh rose fruits without branches, canker and insect pests, mixing the roxburgh rose fruits with the fermentation liquor obtained in the step 2 according to a mass ratio of 1:0.3, pulping, standing for 40h, and filtering to remove residues to obtain pulp.
4. Mixing and fermenting: inoculating 0.4 per mill (accounting for the mass of the serous fluid) of acetobacter into the serous fluid in the step 3, and continuing standing and fermenting at 32 ℃ until the content of ethanol in the fermentation liquor is reduced to 0, and ending the fermentation to obtain the fermentation liquor.
5. Adding isomaltooligosaccharide (accounting for 25% of the mass of the fermentation broth) into the fermentation broth obtained in the step 4 for blending; sterilizing the obtained blending liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
Comparative example 3
1. Mushroom pretreatment: cleaning the rotten oyster mushrooms and phoenix mushrooms after root removal, drying the surface moisture, mixing the two mushrooms in equal amount, and pulping to obtain mushroom pulp.
2. Mushroom fermentation: adding 6% sucrose into mushroom slurry, inoculating yeast for fermentation with the inoculation amount of 0.8 ‰ (based on the mass of mushroom slurry), fermenting at 33 deg.C for 36 hr, and filtering to remove residue to obtain first fermentation liquid; inoculating 0.4 per mill (accounting for the first fermentation broth) of acetobacter, performing second fermentation at 32 ℃, and fermenting for 72 hours, wherein the pH value of the fermentation broth is 4.49 after the fermentation is finished.
3. Pre-treating the roxburgh rose: cleaning and draining the whole fresh roxburgh rose fruit without branches, canker and insect pests, mixing the fresh roxburgh rose fruit with the second fermentation liquor obtained in the step 2 according to the mass ratio of 1.
4. Mixing and fermenting: inoculating 0.4 per mill (accounting for the mass of the serous fluid) of acetobacter into the serous fluid in the step 3, and continuing standing and fermenting at 32 ℃ until the content of ethanol in the fermentation liquor is reduced to 0, and ending the fermentation to obtain the fermentation liquor.
5. Adding isomaltooligosaccharide (accounting for 25% of the mass of the fermentation broth) into the fermentation broth obtained in the step 4 for blending; sterilizing the obtained blended liquid, and filling in a clean area to obtain the Rosa roxburghii mushroom oral liquid.
The Vc, polyphenol and mushroom polysaccharide contents (mg/g) of the oral liquid prepared in the examples and the comparative examples are shown in the following table 1:
TABLE 1 Vc, polyphenols and lentinan content in oral liquid
Figure BDA0002244208430000081
Figure BDA0002244208430000091
TABLE 2 organic acid content (mg/g) in the second fermentation broth of mushrooms
Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3
Citric acid 7.33 8.01 9.75 7.28 1.83 3.01
Lactic acid 2.98 3.55 4.19 3.07 0 0
Acetic acid 2.49 2.78 3.15 2.57 0 1.98
TABLE 3 organic acid content (mg/g) in fermentation broth after completion of fermentation in step (4) in examples and comparative examples
Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3
Citric acid 9.07 10.38 11.06 8.92 2.41 4.11
Lactic acid 0.97 1.23 1.4 1.27 0 0
Acetic acid 12.47 12.88 13.52 14.21 8.59 8.85
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.

Claims (9)

1. A preparation method of a roxburgh rose mushroom oral liquid is characterized by comprising the following steps:
(1) Removing roots of mushrooms, cleaning and pulping to obtain mushroom pulp;
(2) Adding a sugar source into the mushroom pulp, inoculating saccharomycetes and lactic acid bacteria, performing primary fermentation for 20-72 hours, filtering and removing slag after the primary fermentation is finished to obtain primary fermentation liquid, inoculating acetobacter and performing secondary fermentation for 36-96 hours to obtain secondary fermentation liquid;
wherein the inoculation amount of the microzyme and the lactobacillus accounts for 0.5 to 2 per mill and 0.1 to 0.5 per mill of the mass of the mushroom pulp respectively, and the inoculation amount of the acetobacter accounts for 0.2 to 0.8 per mill of the mass of the first fermentation liquor;
(3) Adding the roxburgh rose into the second fermentation liquor, pulping, standing, and filtering to remove residues to obtain a slurry;
(4) Inoculating acetobacter into the slurry, fermenting until the mass concentration of ethanol in the fermentation liquor is reduced to 5 per mill or below, and ending fermentation to obtain fermentation liquor; wherein the inoculation amount of the acetobacter accounts for 0.05-0.2 per mill of the mass of the slurry;
(5) Adding sugar into the fermentation broth, sterilizing, and canning to obtain Rosa roxburghii mushroom oral liquid;
the mass ratio of the roxburgh rose to the second fermentation broth in the step (3) is 1: (0.1-0.8); and (4) standing for 16-48 h.
2. The preparation method of the roxburgh rose mushroom oral liquid according to claim 1, wherein the mass ratio of the roxburgh rose to the second fermentation broth in the step (3) is 1: (0.3 to 0.5); the inoculation amount of the acetobacter in the step (4) accounts for 0.08-0.12 per mill of the mass of the serous fluid.
3. The preparation method of the rosa roxburghii tratt mushroom oral liquid according to claim 1 or 2, wherein the inoculation amount of the yeast in the step (2) accounts for 0.8 to 1.5 per mill of the mass of mushroom serous liquid, and the inoculation amount of the acetobacter accounts for 0.4 to 0.6 per mill of the mass of the first fermentation liquid.
4. The preparation method of the rosa roxburghii tratt mushroom oral liquid according to claim 3, wherein the temperature of the first fermentation in the step (2) is 28-35 ℃, and the time is 24-36 hours; the temperature of the second fermentation is 28-32 ℃, and the time is 36-72 h.
5. The method for preparing a rosa roxburghii tratt mushroom oral liquid according to claim 4, wherein the yeast in the step (2) is saccharomyces cerevisiae; the lactobacillus is at least one of lactobacillus plantarum, lactobacillus bulgaricus and lactobacillus paracasei.
6. The method for preparing the oral liquid of the rosa roxburghii tratt mushrooms according to claim 4, wherein the sugar source in the step (2) is sucrose; the adding amount of the sugar source in the step (2) is 3-16% or 6-10% of the mass of the mushroom pulp; the adding amount of the sugar in the step (5) accounts for 10-50% of the mass of the fermentation liquor.
7. The method for preparing Rosa roxburghii mushroom oral liquid according to claim 4, wherein the pH value of the second fermentation liquid in step (3) is 3.4-4.1; the standing time in the step (3) is 24-36 h; the fermentation temperature in the step (4) is the same as that of the second fermentation in the step (2).
8. The method for preparing Rosa roxburghii mushroom oral liquid according to claim 4, wherein the mushroom in step (1) is at least one of Pleurotus ostreatus, lentinus edodes and Pleurotus pulmonarius; the sugar in the step (5) is at least one of isomaltooligosaccharide, fructo-oligosaccharide and maltitol.
9. The method for preparing a rosa roxburghii tratt mushroom oral liquid according to claim 4, wherein the yeast and the lactic acid bacteria in the step (2) are uniformly mixed and then the mixed bacteria are inoculated.
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