CN112544872A - Preparation and application of fat substitute - Google Patents

Preparation and application of fat substitute Download PDF

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Publication number
CN112544872A
CN112544872A CN202011449785.2A CN202011449785A CN112544872A CN 112544872 A CN112544872 A CN 112544872A CN 202011449785 A CN202011449785 A CN 202011449785A CN 112544872 A CN112544872 A CN 112544872A
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fat
fat substitute
starch milk
preparation
red yeast
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CN112544872B (en
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诸葛斌
赵宽
宗红
陆信曜
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Jiangnan University
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Jiangnan 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
    • A23L7/00Cereal-derived products; Malt products; Preparation or treatment thereof
    • A23L7/10Cereal-derived products
    • A23L7/104Fermentation of farinaceous cereal or cereal material; Addition of enzymes or microorganisms
    • 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
    • A23L15/00Egg products; Preparation or treatment thereof
    • A23L15/30Addition of substances other than those covered by A23L15/20 – A23L15/25
    • 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
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/60Salad dressings; Mayonnaise; Ketchup
    • 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
    • A23L7/00Cereal-derived products; Malt products; Preparation or treatment thereof
    • A23L7/10Cereal-derived products
    • A23L7/104Fermentation of farinaceous cereal or cereal material; Addition of enzymes or microorganisms
    • A23L7/107Addition or treatment with enzymes not combined with fermentation with microorganisms
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

The invention discloses a preparation method and application of a fat substitute, and belongs to the field of food additives. The starch milk is obtained by adding red yeast rice powder and water in a certain proportion into a container which is cleaned and sterilized, and stirring and mixing. Adjusting pH of starch milk to be neutral, heating and continuously stirring, then adding high temperature resistant alpha-amylase, carrying out enzymolysis for a certain time, then rapidly cooling in an ice bath, rapidly inactivating enzyme, standing, adjusting pH to be neutral, filtering, drying filtrate, crushing and sieving to obtain a fat substitute product, and further applying to the development of mayonnaise. The red yeast rice fat substitute prepared by the invention has good eating and sensory properties, has similar fat properties, has certain cholesterol-lowering efficacy, and can be used for developing low-fat or fat-free products.

Description

Preparation and application of fat substitute
Technical Field
The invention relates to preparation and application of a fat substitute, and belongs to the field of food additives.
Background
Red yeast rice, as an edible rice koji, is obtained by fermenting a fungus Monascus purpureus (Monascus) parasitized on grains, and has been in the history of nearly millennium in China. The red yeast contains various secondary metabolites beneficial to human bodies, including Monacolin K, monascus pigment, gamma-aminobutyric acid, unsaturated fatty acid, flavonoid compounds, ergosterol and the like, and the metabolites are rich in content, have the effects of resisting aging, resisting fatigue, preventing and treating cardiovascular diseases, enhancing the immunity of organisms, preventing obesity, resisting tumors, preventing and treating various diseases and the like, and have very important application and research values in the fields of food, medicine and the like. Nowadays, due to the attention of people on body health and the improvement of food quality requirements, functional red yeast rice gradually enters the visual field of people, and at present, the functional red yeast rice is mainly used for both eating and medicinal purposes, but the Monacolin K content in commercial red yeast rice is lower and is only 3.0-4.0 mg (Monacolin K)/g (red yeast rice). In addition, red rice can generate red monascus pigment in the fermentation process, and although the monascus pigment is a safe food pigment, the red monascus pigment is generally red, so that the color of the product has certain limitation when the red monascus pigment is added into food and health care products.
Fat is one of three nutrients required by human, can provide nutrients for human body, is an important energy source for people to resist hunger, and can regulate physiological function and protect protein. Scientific research shows that the fat intake is controlled to be between 20 and 25 percent, and after the fat intake exceeds 30 percent, the fat intake threatens the health of human bodies and easily causes cardiovascular and cerebrovascular diseases such as obesity, hypertension, hyperlipidemia, coronary heart disease and the like. With the increase of economy and the improvement of quality of life, people's health consciousness is continuously increased, and in order to meet market demands, manufacturers try to increase the contents of vegetable protein, starch, lean meat and the like in food to reduce the proportion of fat in the food, but the effect is not ideal. Up to now, international efforts have been made to develop and utilize fat substitutes which are colorless, odorless, easy to store for a long time, resistant to high temperature, not easy to denature, interactive with other substances, free from side effects on the body, close in taste to fat, and capable of generating less heat.
Fat substitutes are a class of substances that are added to food products to replace fats so that they have an organoleptic effect that is close to or the same as that of full-fat food products of the same type, but also to reduce the overall calories of the food product. At present, carbohydrate-based fat substitutes are the most common substitutes on a shelf, but cannot be directly added into food, and only can be combined with water to form a three-dimensional net structure to simulate the greasy feeling and the viscosity of fat, and starch, fiber, gum and polysaccharide are usually used as raw materials, so that the source is wide, the price is low, the heat production is low, and no side effect is caused.
Therefore, the novel fat substitute which has good edible and sensory properties, similar fat properties and certain cholesterol-reducing efficacy is provided, and the novel fat substitute has good market application prospect.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation method of a fat substitute, which comprises the following steps:
(1) preparing red yeast rice powder: steaming rice to prepare a solid fermentation culture medium, sterilizing, inoculating a monascus bacterial suspension for fermentation culture to obtain a fermentation product, and drying the fermentation product to obtain the monascus rice powder;
(2) preparing starch milk: mixing the red yeast rice powder prepared in the step (1) with water to obtain starch milk;
(3) enzymolysis: adding high-temperature-resistant alpha-amylase into the starch milk obtained in the step (2) for enzymolysis;
(4) and (3) cooling: cooling the enzymolysis liquid obtained in the step (3);
(5) preparing a fat substitute: and filtering and drying the cooled enzymolysis liquid to obtain the fat substitute.
In one embodiment of the invention, the Monascus is Monascus white variety 3001-18(Monascus sp. var. white)3001-18 with the preservation number of CGMCC No. 0517.
In one embodiment of the present invention, the concentration of the monascus bacteria in the monascus bacterial suspension is at least: 0.8X 106one/mL.
In one embodiment of the invention, the step (1) is to cook rice, prepare a solid fermentation culture medium and bottle the rice, sterilize the rice, then introduce monascus suspension into the rice for fermentation culture, dry the obtained fermentation product at 80 ℃ for 3-5 hours, crush the product and then pass through a 60-mesh sieve, thus obtaining the red yeast rice powder.
In one embodiment of the invention, the step (2) is to add 20 parts of red yeast rice powder and 100-300 parts of water into a container which is cleaned and sterilized, and stir and fully mix to obtain the starch milk.
In one embodiment of the invention, the step (3) is to adjust the pH of the starch milk to be neutral, then heat the starch milk to 90-100 ℃ and keep the temperature for 10min, continuously stir the starch milk during the heating, then add high-temperature-resistant alpha-amylase and carry out enzymolysis for 8-16 min.
In one embodiment of the invention, the step (4) is that after the enzymolysis liquid obtained in the step (3) is cooled in ice bath, a pH regulator is added to adjust the pH to 2.0, the enzyme is rapidly deactivated, and the pH is adjusted to 6-8 after standing for 10 min.
In one embodiment of the invention, the step (5) is to filter the filtrate, dry the filtrate in a 60 ℃ constant temperature air-blast drying oven for 10-14 h, and crush and screen the filtrate to obtain the fat substitute.
In one embodiment of the present invention, the rice used in the present invention may be rice that is commonly used in the art, including polished round-grained rice, polished long-grained rice and polished glutinous rice, wherein polished glutinous rice is most preferred.
In one embodiment of the present invention, the thermostable α -amylase described herein is a food grade thermostable α -amylase conventionally used in the art.
In one embodiment of the present invention, the pH adjusting agent described in the present invention is a pH adjusting agent conventionally used in the art, and includes hydrochloric acid, acetic acid, sodium carbonate and sodium hydroxide.
The invention also provides a fat substitute prepared by the preparation method.
The invention also provides the preparation method or the application of the fat substitute in preparing cholesterol-reducing products.
The invention also provides the preparation method or the application of the fat substitute in preparing low-fat food.
In one embodiment of the invention, the use is for replacing vegetable oils.
The invention also provides a method for preparing mayonnaise, wherein vegetable oil is replaced by the novel fat substitute in the preparation process.
In one embodiment of the invention, the method comprises the steps of cleaning 2 parts of eggs, separating yolk from egg white, putting the yolk into a container, adding 4 parts of sweetening agent and 2 parts of edible salt, mixing and stirring to form homogenate, adding 3 parts of edible white vinegar, slowly adding the prepared fat substitute, continuously stirring until the yolk is coagulated, adding 3 parts of edible white vinegar, and uniformly stirring to obtain the mayonnaise.
In one embodiment of the present invention, the sweetener used in the present invention may be any sweetener conventionally used in the art, including preferably one or more of glucose, lactose, sucrose, maltose, fructose, glucose-fructose syrup, acesulfame potassium, aspartame and sodium cyclamate, and more preferably refined or premium white sugar.
Advantageous effects
(1) The invention provides a preparation method of a novel fat substitute, which is characterized in that rice is used as a raw material, and the rice is subjected to solid state fermentation culture through a monascus white variant strain to obtain novel red yeast rice, wherein the red yeast rice is different from the traditional red yeast rice and shows red color in food addition, and Monacolin K with the content of 3.0-4.0 mg/g far higher than that of the Monacolin K sold in the market can be generated. The fat substitute prepared from the red yeast rice powder has a fine structure, has texture and taste similar to fat, and contains Monacolin K capable of inhibiting cholesterol synthesis, so that the fat substitute has a certain effect of reducing cholesterol.
(2) The invention provides a preparation method of a novel fat substitute, and the prepared novel fat substitute has strong solubility, swelling degree, water retention, freeze-thaw stability and anti-coagulation property, is easy to diffuse in water, has strong water molecule interception capability, is easy to form a gel structure, has good fluidity, and has texture and taste close to fat.
Detailed Description
The present invention is further illustrated by the following examples, which are provided for the purpose of illustration only and are not to be construed as limiting the scope of the present invention, and other insubstantial modifications and adaptations of the invention will become apparent to those skilled in the art in light of the foregoing description.
The bacterial strain referred to in the following examples is Monascus albedo 3001-18(Monascus sp. var. white)3001-18, with a preservation number of CGMCC NO.0517, which is disclosed in patent publication No. CN1373208A, 10.9.2002.
The media involved in the following examples are as follows:
slant medium (g/L): 50 parts of glucose; peptone 20; NaNO3 2;MgSO4·7H2O1; agar 20, pH natural.
Plate medium (g/L): 50 parts of glucose; peptone 20; NaNO3 2;MgSO4·7H2O1; agar 20, pH natural.
Seed medium (g/L): 50 parts of glucose; peptone 20; NaNO3 2;MgSO4·7H2O1, pH is natural.
The preparation of the monascus bacterial suspension referred to in the following examples:
inoculating Monascus mycelium from the plate to a seed liquid culture medium, and shake-culturing at 30 deg.C and 200r/min for 36 hr to obtain Monascus suspension with a concentration of 0.8-1 × 106one/mL.
The detection methods referred to in the following examples are as follows:
and (3) detecting the content of Monacolin K: the measurement is carried out by a Waters-1525 liquid chromatograph. Chromatographic conditions are as follows: a chromatographic column: supersil ODS2(4.6 mm. times.250 mm), particle size 5 μm; mobile phase: methanol: 0.1% H3PO477.5:22.5 (V/V); flow rate: 1.0 mL/min; detection wavelength: 273 nm; flow rate: 1.0 mL/min; detection sensitivity: 0.01 AUFS; sample introduction amount: 20 μ L.
The calculation formula of the Monacolin K content is as follows: mass (mg) of Monacolin K/red yeast rice flour (g).
And (3) detecting the physical and chemical properties of the fat substitute:
(1) solubility and swelling degree: dissolving 2g of sample in 20mL of water, stirring and heating in 100 ℃ water bath for 30min, naturally cooling, centrifuging for 20min at 4000r/min, separating out supernatant, drying, weighing to obtain the mass of the water-soluble starch, wherein the precipitate is swelling starch, and the calculation formulas of the solubility and the swelling degree are as follows:
solubility-water soluble starch mass/sample mass X100%
Swelling degree ═ swelling starch mass/sample mass (1-solubility) × 100%.
(2) Water retention: weighing 2g of sample, dissolving the sample in 20mL of water to prepare starch emulsion, uniformly stirring, standing for 30min, centrifuging at the rotating speed of 4000r/min for 20min, and removing supernatant, wherein the water holding capacity is calculated by the following formula:
water retention ═ water content dissolved sample-water content discarded)/sample mass × 100%.
(3) Freeze-thaw stability: the freeze-thaw stability of the samples was expressed in terms of water extraction rate. Dissolving 2g of sample in 20mL of water to prepare starch emulsion, stirring in boiling water bath for 30min to fully gelatinize the starch emulsion, naturally cooling, freezing at-20 ℃ for 24h, naturally thawing, centrifuging at the rotating speed of 4000r/min for 20min, discarding supernatant, and calculating the water analysis rate according to the mass of precipitate.
The water separation rate (mass of starch paste-mass of precipitate)/mass of sample × 100%.
(4) Coagulation property: preparing a sample into starch emulsion with the mass fraction of 1%, stirring and gelatinizing for 30min in a boiling water bath, naturally cooling, taking a proper amount of gelatinized emulsion, standing in a graduated cylinder at room temperature, and recording the volume change of the supernatant. The retrogradation properties of the starch paste are expressed as the percentage of the volume of supernatant on day 7 of standing under the same conditions in relation to the total volume.
The national trade industry standards referred to in the following examples:
the trade industry standard of the national republic of China's mayonnaise' SB/T10754-.
Example 1: preparation of novel fat substitute
The method comprises the following specific steps:
(1) adding water into 100g of rice, submerging the rice to be 4cm above the surface of the rice grains, soaking the rice grains in water for 12h at room temperature, draining, washing with water, steaming at normal pressure for 45min, cooling to room temperature, adding 25mL of nutrient solution and 20mL of soybean meal, uniformly stirring, and subpackaging in 500mL triangular bottles with 75g per bottle to obtain the rice solid fermentation medium. Inoculating the prepared monascus bacterial suspension into the obtained sterilized rice solid-state fermentation culture medium according to the inoculation amount with the mass fraction of 10%, standing and culturing at 33 ℃ for 84h, turning over twice a day to properly shake the flask, and then regulating the temperature to 27 ℃ for culturing for 12d to obtain a fermentation product; drying the fermented product at 80 ℃ for 5h, crushing and sieving by a 60-mesh sieve to obtain red yeast rice powder, wherein the yield of Monacolin K in the red yeast rice powder is 9.5mg/g through detection.
(2) Adding 20 parts of red yeast rice powder and 100 parts of water into a cleaned and sterilized container, and stirring and fully mixing to obtain the starch milk. Adjusting the pH value of the starch milk to 7, heating to 90 ℃, keeping the temperature for 10min, continuously stirring during the period, adding high-temperature-resistant alpha-amylase, carrying out enzymolysis for 8min to obtain an enzymolysis liquid, rapidly cooling the enzymolysis liquid in an ice bath, adding a pH regulator (1.0mol/L hydrochloric acid solution) to adjust the pH value to 2.0, rapidly inactivating the enzyme, standing for 10min, adjusting the pH value to 7, filtering, drying the filtrate in a 60 ℃ constant-temperature air-blast drying oven for 10h, and crushing and sieving to obtain the fat substitute 1.
Example 2: preparation of novel fat substitute
The method comprises the following specific steps:
(1) adding water into 100g of rice, submerging the rice to 5cm above the surface of the rice grains, soaking the rice grains in water for 14h at room temperature, draining, washing with water, steaming at normal pressure for 45min, cooling to room temperature, adding 25mL of nutrient solution and 20mL of soybean meal, uniformly stirring, and subpackaging in 500mL triangular bottles with 75g per bottle to obtain the rice solid fermentation medium. Inoculating the prepared monascus strain suspension into the obtained sterilized rice solid-state fermentation culture medium according to the inoculation amount with the mass fraction of 10%, standing and culturing at 33 ℃ for 96h, turning over twice a day to properly shake the flask, and then regulating the temperature to 27 ℃ for culturing for 13d to obtain a fermentation product; drying the fermented product at 80 ℃ for 5h, crushing and sieving by a 60-mesh sieve to obtain red yeast rice powder, wherein the Monacolin K yield in the red yeast rice powder is 10.7mg/g through detection.
(2) Adding 20 parts of red yeast rice powder and 200 parts of water into a cleaned and sterilized container, and stirring and fully mixing to obtain the starch milk. Adjusting the pH value of the starch milk to 7, heating to 95 ℃, keeping the temperature for 30min, continuously stirring during the period, adding high-temperature-resistant alpha-amylase, carrying out enzymolysis for 12min to obtain an enzymolysis liquid, rapidly cooling the enzymolysis liquid in an ice bath, adding a pH regulator (1.0mol/L hydrochloric acid solution) to adjust the pH value to 2.0, rapidly inactivating the enzyme, standing for 10min, adjusting the pH value to 7, filtering, drying the filtrate in a 60 ℃ constant-temperature air-blast drying oven for 12h, and crushing and sieving to obtain a fat substitute 2.
Example 3: preparation of novel fat substitute
(1) Adding water into 100g of rice, submerging the rice to 6cm above the surface of the rice grains, soaking the rice grains in water at room temperature for 16h, draining, washing with water, steaming at normal pressure for 45min, cooling to room temperature, adding 25mL of nutrient solution and 20mL of soybean meal, uniformly stirring, and subpackaging in 500mL triangular bottles with 75g per bottle to obtain the rice solid fermentation medium. Inoculating the prepared monascus strain suspension into the obtained sterilized rice solid-state fermentation culture medium according to the inoculation amount with the mass fraction of 10%, standing and culturing for 108 hours at 33 ℃, turning over twice a day to properly shake the flask, and then regulating the temperature to 27 ℃ for culturing for 14 days to obtain a fermentation product; drying the fermented product at 80 ℃ for 5h, crushing and sieving by a 60-mesh sieve to obtain red yeast rice powder, wherein the yield of Monacolin K in the red yeast rice powder is 9.2mg/g through detection.
(2) Adding 20 parts of red yeast rice powder and 300 parts of water into a cleaned and sterilized container, and stirring and fully mixing to obtain the starch milk. Adjusting the pH value of the starch milk to 7, heating to 100 ℃, keeping the temperature for 10min, continuously stirring during the period, adding high-temperature-resistant alpha-amylase, carrying out enzymolysis for 16min to obtain an enzymolysis liquid, rapidly cooling the enzymolysis liquid in an ice bath, adding 1.0mol/L hydrochloric acid solution of a pH regulator to adjust the pH value to 2.0, rapidly inactivating the enzyme, standing for 10min, adjusting the pH value to 7, filtering, taking the filtrate, drying in a 60 ℃ constant-temperature air-blast drying oven for 14h, crushing and sieving to obtain a fat substitute 3.
Example 4: study of the Properties of novel fat substitutes
The fat substitutes prepared in examples 1 to 3 were examined for their properties, and the results are shown in Table 1:
TABLE 1 Properties of fat substitutes obtained in examples 1-3
Figure BDA0002826339460000061
The results show that: the solubility, the swelling degree, the water holding capacity, the freeze-thaw stability and the anti-coagulation property of the fat substitute prepared by enzymolysis of the white red yeast rice powder are obviously better than those of the white red yeast rice powder, the fat substitute is easy to diffuse in water, has stronger water molecule retaining capacity, is easy to form a gel structure, has good fluidity and has texture and taste similar to fat.
Example 5: use of novel fat substitutes
The invention only takes mayonnaise as an example, and the application of the fat substitute prepared by the invention is illustrated.
The method comprises the following specific steps:
(1) preparing materials:
the following materials were prepared: 2 eggs, 4g of white granulated sugar, 2g of edible salt, 6mL of edible white vinegar and 150mL of vegetable oil.
(2) The manufacturing steps are as follows:
separating yolk and egg white of the cleaned eggs, putting the yolk into a container, adding white granulated sugar and edible salt, mixing and stirring to obtain homogenate, adding edible white vinegar into the homogenate, then slowly adding vegetable oil at a speed of not more than 30mL/min, continuously stirring until the yolk is coagulated, adding the edible white vinegar, and uniformly stirring to obtain the mayonnaise 1.
Mayonnaise 2, mayonnaise 3 and mayonnaise 4 were prepared by the same method as mayonnaise 1 except that vegetable oil was changed to: ratio of fat substitute to vegetable oil 1: 2. the ratio of the fat substitute to the vegetable oil is 1: 1. adding fat substitute to obtain mayonnaise 2, mayonnaise 3 and mayonnaise 4; wherein the fat substitute was fat substitute 1 obtained in example 1.
The physical and chemical properties of mayonnaise 2, mayonnaise 3 and mayonnaise 4 were measured, and the sensory evaluation scoring criteria are shown in table 2. Results of sensory evaluation of mayonnaise 2, mayonnaise 3 and mayonnaise 4 are shown in Table 3
TABLE 2 sensory evaluation scoring criteria
Figure BDA0002826339460000071
Table 3 results of sensory evaluation of mayonnaise 2, mayonnaise 3 and mayonnaise 4
Sample (I) Taste of the product Appearance of the product Tissue morphology Smell(s) Total score
Mayonnaise 1 26.00±1.00 15.50±2.11 25.70±2.07 15.20±0.84 82.40±1.95
Mayonnaise 2 25.80±1.30 15.00±2.00 25.50±1.97 15.40±1.14 81.80±1.64
Mayonnaise 3 24.60±1.82 13.80±2.59 21.30±1.71 13.50±1.05 73.20±2.28
Mayonnaise 4 23.20±2.59 10.30±1.89 16.70±0.76 13.30±2.15 63.50±2.50
Fat-only substitutes 22.90±1.82 8.20±1.64 15.80±2.59 13.50±2.37 60.40±2.59
Wherein, the detection shows that the yield of Monacolin K in the mayonnaise 2, the mayonnaise 3 and the mayonnaise 4 is respectively 0.73mg/g, 1.06mg/g and 1.97 mg/g. The results of the physical and chemical property tests of mayonnaise 2, mayonnaise 3 and mayonnaise 4 are shown in table 4:
TABLE 4 physical and chemical property detection of mayonnaise 2, mayonnaise 3 and mayonnaise 4
Figure BDA0002826339460000081
In conclusion, compared with the common mayonnaise, the mayonnaise prepared by partially replacing the grease with the red yeast rice fat substitute has the advantages of more viscous and uniform body shape, better mouthfeel and no obvious difference in various indexes, but can obviously show the fat content in the mayonnaise, and also contains Monacolin K, so that the mayonnaise has a certain cholesterol-reducing effect.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A method for preparing a fat substitute, comprising the steps of:
(1) preparing red yeast rice powder: steaming rice, mixing with nutrient substances, preparing into solid fermentation culture medium, sterilizing, inoculating into Monascus bacteria suspension, fermenting and culturing to obtain fermented product, and drying to obtain Monascus powder;
(2) preparing starch milk: mixing the red yeast rice powder prepared in the step (1) with water to obtain starch milk;
(3) enzymolysis: adding high-temperature-resistant alpha-amylase into the starch milk obtained in the step (2) for enzymolysis to obtain an enzymolysis solution;
(4) and (3) cooling: cooling the enzymolysis liquid obtained in the step (3);
(5) preparing a fat substitute: and (4) filtering and drying the enzymatic hydrolysate cooled in the step (4) to obtain the fat substitute.
2. The method of claim 1, wherein the monascus is monascus var albicans CGMCC No. 0517.
3. The preparation method according to claim 1 or 2, wherein the starch milk of step (2) is obtained by mixing 20 parts of red yeast rice powder and 100-300 parts of water, and stirring the mixture thoroughly.
4. The preparation method according to any one of claims 1 to 3, wherein the pH of the starch milk is adjusted to be neutral in the step (3), then the starch milk is heated to 90-100 ℃ and kept warm for 10min, stirring is continuously carried out during the heating, then the high-temperature resistant alpha-amylase is added, and enzymolysis is carried out for 8-16 min.
5. The method according to any one of claims 1 to 4, wherein in the step (4), the enzymatic hydrolysate obtained in the step (3) is cooled in an ice bath, then a pH regulator is added to adjust the pH to 2.0, then the enzyme is inactivated, and the pH is adjusted to 6 to 8 after standing for 10 min.
6. The preparation method according to any one of claims 1 to 5, wherein the drying in the step (5) is to take the filtrate to dry in a 60 ℃ constant temperature air blast drying oven for 10-14 h, and to obtain the fat substitute by crushing and sieving.
7. A fat substitute prepared by the method of any one of claims 1 to 6.
8. Use of the method of any one of claims 1 to 6, or the fat substitute of claim 7, for the preparation of a cholesterol-lowering product.
9. Use of the method of manufacture of any one of claims 1 to 6, or the fat substitute of claim 7, for the manufacture of a low fat food product.
10. Use according to claim 9, wherein the vegetable oil or fat is replaced by a fat substitute during the preparation process.
CN202011449785.2A 2020-12-09 2020-12-09 Preparation and application of fat substitute Active CN112544872B (en)

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