CN109287797B - Moisture-absorption-resistant weight-losing dark tea solid beverage and preparation method thereof - Google Patents
Moisture-absorption-resistant weight-losing dark tea solid beverage and preparation method thereof Download PDFInfo
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- CN109287797B CN109287797B CN201811199493.0A CN201811199493A CN109287797B CN 109287797 B CN109287797 B CN 109287797B CN 201811199493 A CN201811199493 A CN 201811199493A CN 109287797 B CN109287797 B CN 109287797B
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
- A23F3/14—Tea preparations, e.g. using additives
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/385—Concentrates of non-alcoholic beverages
- A23L2/39—Dry compositions
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/52—Adding ingredients
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/125—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/17—Amino acids, peptides or proteins
- A23L33/175—Amino acids
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention discloses a moisture-absorption-resistant weight-losing dark tea solid beverage, wherein cassia seed, lotus leaf, oligosaccharide and other medicinal and edible foods and L-carnitine and other nutrition enhancers are added into the dark tea solid beverage. The black tea has a plurality of efficacies of grease relieving, blood fat reducing and the like which are widely accepted by people; the cassia seed, the lotus leaf, the L-carnitine and the oligosaccharide can pertinently overcome all causes of obesity and have the synergistic weight-reducing and health-care effects. In the preparation process, the characteristics of slow dissolution and moisture resistance after simple modification of maltodextrin are innovatively utilized by a combined embedding mode to carry out moisture absorption resistance and slow release treatment on L-carnitine and oligosaccharide, so that the problem that the prepared weight-reducing dark green tea solid beverage is easy to absorb moisture and liquefy is solved, and the preparation method is suitable for industrial large-scale production, storage and transportation; on the other hand, the loss of the nutritional supplement in the tea washing process of brewing is solved, so that the prepared tea powder or tea cake can be used for carrying out conventional tea washing to remove attached impurities, and the requirements of modern people on friend making, guest waiting, weight losing and health care can be further met.
Description
Technical Field
The invention relates to a functional tea product, in particular to a moisture absorption resistant weight-losing dark green tea solid beverage and a preparation method thereof.
Technical Field
Chinese guidelines for the prevention and control of overweight and obesity of adults (trial) indicate that national statistical data as early as 04 years indicate that overweight people reach 22.4% and obese people reach more than 3% in China. With the improvement of the quality of life of the people, the living pressure is gradually increased, more and more people are inevitably involved in the obesity state, and the overweight and obesity can induce diseases such as hypertension, coronary heart disease, diabetes, hyperlipidemia, cholelithiasis and the like, and can also influence the development, metabolism, psychology and even intelligence. As a common group of metabolic disorders, obesity occurs in association with a variety of factors, including mental stress, excessive fat intake, constipation, intestinal dysbacteriosis, and the like. For obesity and numb diet and exercise, the stored lipid is difficult to be efficiently consumed, the living discomfort of the weight-losing person is brought, the living quality is reduced, once the life is relaxed, a plurality of adverse factors can be comprehensively influenced, and the weight is rapidly rebounded.
The black tea is a post-fermented tea, the unique taste of which is paid more and more attention and favored by more and more people, and the black tea contains active substances such as tea polysaccharide and the like which are higher than that of a plurality of teas and can play stronger roles in regulating blood sugar and blood fat, regulating immunity and the like. Meanwhile, the black tea has a long history, and a complete and mature black tea culture also becomes a very important component in the tea culture, so that if a plurality of consumers can take weight-losing and health-care effects smoothly when the black tea is daily tasted, the method is obviously very convenient and fast, and is very in line with the actual craving and pursuit of health of contemporary people under multiple pressures. However, obesity is caused by various reasons, and the traditional dark tea is lack of strength in the presence of such complicated conditions.
Early, people also make preliminary research and exploration on the aspect of weight-reducing health-care dark tea. For example, in the patent of L-carnitine and plant extract beverage composition, preparation method and application thereof (publication No. CN105146656A), the aim of synergistic weight-reducing health care is achieved by combining black tea with raw materials such as L-carnitine and lotus leaf which have certain weight-reducing effect. On one hand, the combination has experience and numbness, and cannot be considered from the complexity and repeatability of the cause of the obesity in the present time, most of the obtained products follow the ancient prescription, and only have certain effects on one aspect of promoting intestinal peristalsis, promoting lipid conversion and the like; on the other hand, the researches and the inventions are mostly based on that extracts are prepared into instant tea, active ingredients in medicinal and edible ingredients such as black tea and the like cannot be extracted completely in the extraction process, the instant tea does not have the brewing function of daily tea culture, the instant tea cannot be widely accepted by people depending on a tea culture platform, and the new requirements of people on weight-reducing and health-care are not well met.
Therefore, the development of the weight-reducing health-care dark tea which can synergistically and comprehensively break a plurality of weight-reducing barriers and retain the brewing function of the dark tea is still in urgent need. The origin of obesity in modern people is repeated, and besides the continuous excessive energy intake, the fat accumulated in the body is not easy to be consumed, and the obesity is repeated and difficult to overcome by the combined action of the excessive energy intake. The problem of excessive intake of energy can be solved by promoting the intestinal peristalsis, reducing the energy intake, and the like, but most of the weight-reducing strategies for the accumulated fat are not sufficient.
L-carnitine is a non-toxic substance which is contained in trace amount in daily food and can be synthesized by human body in trace amount, can regulate energy consumption mode of human body, dredge lipid consumption channel and promote accumulated lipid consumption, so that it is a safe and high-effective nutrient fortifier. The prebiotic oligosaccharide can regulate intestinal bacteria, further has positive influence on daily life, and can effectively coordinate and consume accumulated lipid. However, both the L-carnitine and the prebiotics are very easy to absorb moisture, and water vapor is often strictly controlled in production, particularly in large-scale production due to the reasons of uniformity of mixed materials, moisture resistance of products, smoothness of processing and the like, which is quite unfavorable for large-scale production and addition of the L-carnitine and the prebiotics, and the cost of the products in each flow of production, transportation and storage is greatly increased.
A patent of prebiotics additive, a preparation method and application thereof (publication No. CN107836723A) provides a cheap solution for reducing the hygroscopicity of materials by means of the protection effect of maltodextrin modification aiming at the problem of easy hygroscopicity of materials such as prebiotics, but after oligosaccharide and nutrition enhancer are protected by the solution, the mixture can be rapidly dissolved in hot water. Because the black tea needs to be washed in daily brewing, the loss of oligosaccharide and nutrition enhancer is inevitable if the solution of the patent is adopted.
Therefore, the weight-reducing health-care dark tea can synergistically and comprehensively break a plurality of weight-reducing barriers and keep the procedures of brewing and washing the dark tea, simultaneously solves the problem that the dark tea is easy to absorb moisture in each flow, and has important influence and significance for weight-reducing health care of modern people.
Disclosure of Invention
Aiming at the problems that the weight-losing dark tea in the prior art is single in weight-losing effect and easy to absorb moisture, and nutrient substances are easy to lose in the tea washing process, the invention aims to provide the moisture-absorption-resistant solid dark tea beverage which keeps the brewing process of the traditional dark tea, can comprehensively break a plurality of weight-losing barriers and has a slow-release function.
The second purpose of the invention is to provide a preparation method of the anti-moisture-absorption weight-losing dark green tea solid beverage.
The invention relates to a moisture-absorption-resistant weight-losing dark tea solid beverage, which comprises dark tea, lotus leaves, cassia seeds and a moisture-absorption-resistant nutrition enhancer, wherein the moisture-absorption-resistant nutrition enhancer comprises modified maltodextrin, and the modified maltodextrin is obtained by removing impurities from dried maltodextrin, recrystallizing and drying.
The anti-moisture absorption nutrition enhancer containing the modified maltodextrin is added into the weight-losing dark tea solid beverage provided by the invention, so that the moisture absorption problem of dark tea in each flow can be effectively improved, and the nutrition enhancer can play a slow release role in the brewing process; in the research process, the inventor finds that the moisture absorption resistance of the roasted maltodextrin is obviously enhanced, and the melting speed of the roasted maltodextrin in hot water is reduced, so that the prepared nutrition enhancer can be slowly disintegrated in the hot water, namely the slow release in the brewing process can be realized. Meanwhile, after impurity removal, the phenomenon that the nutrition enhancer is too slowly disintegrated or is slightly not disintegrated can be avoided.
The inventor finds that the baking of the maltodextrin in advance is crucial in the research process, and if the maltodextrin is recrystallized and then is subjected to heat treatment, the modified maltodextrin can only absorb moisture, but does not have the slow dissolving property.
Preferably, in the moisture absorption resistant nutrition enhancer, the mass fraction of the modified maltodextrin is 10-40%.
The modified maltodextrin has the functions of moisture absorption resistance and slow release in the moisture absorption resistant nutrition enhancer, the moisture absorption resistant effect can be reduced when the proportion is too low, and the sustained release of the nutrition enhancer in the brewing process is not favorable. If the proportion is too high, the proportion of the effective components is reduced, and the cost of scale preparation is increased.
Preferably, the moisture-absorption-resistant nutrition enhancer is prepared by mixing oligosaccharide, a weight-reducing nutritional agent and modified maltodextrin, wherein the weight-reducing nutritional agent is selected from at least one of L-carnitine and L-carnitine tartrate; the oligosaccharide is at least one of fructo-oligosaccharide, xylo-oligosaccharide and stachyose.
Preferably, in the moisture-absorption-resistant nutrition enhancer, the weight parts of oligosaccharide are 3-8, the weight parts of weight-reducing nutritional agent are 1-3, and the weight parts of modified maltodextrin are 1-4.
Preferably, in the moisture-absorption-resistant nutrition enhancer, the weight part of the oligosaccharide is 4-4.5 parts, the weight part of the weight-reducing nutrition agent is 1-2 parts, and the weight part of the modified maltodextrin is 1.5-2.5 parts.
Due to various stresses and improper daily lives and rest of modern people, the cause of obesity is complicated, and a single weight-reducing mode or a weight-reducing health-care product or a traditional ancient prescription is difficult to take effect. The invention selects and optimizes the formula aiming at various clinical causes of obesity and determines the effective combination aiming at the obesity of modern people. The black tea is widely accepted as a leisure and entertainment tea product, can reduce the stress resistance of people to weight-reducing products, can lead people to insist on weight-reducing and health-care in daily life, simultaneously, the active ingredients such as tea polysaccharide and the like rich in the black tea can obviously reduce lipid absorption, and can play the systemic effects of regulating blood fat and blood sugar, enhancing immunity and the like. The lotus leaves contain active ingredients such as nuciferine and the like, so that the absorption of fat can be reduced, people can reject greasy food, and the effective intake of fat is reduced; glycosides and other active substances in the cassia seed can effectively promote intestinal peristalsis.
The oligosaccharide can not be digested in the upper digestive tract, can specifically promote the proliferation of beneficial bacteria in the intestinal tract and regulate the intestinal flora, and can promote the intestinal tract to operate efficiently and well; the nutrition enhancer such as L-carnitine can be used as an auxiliary enzyme to assist fat to cross mitochondrial membranes to participate in life activities, so that the fat accumulated in the body can be effectively eliminated. The nutrition enhancer can resist moisture absorption after protection treatment, and the loss of the tea washing is basically avoided, so that the black tea culture requirement is better met.
The oligosaccharide is not digested in the upper digestive tract of a human body, beneficial bacteria are selectively proliferated after entering the intestinal tract, the intestinal tract flora ratio is adjusted, and the intestinal tract function is optimized. The added lotus leaves and cassia seeds are slightly bitter and astringent, so that the mouthfeel of the prepared weight-reducing health-care dark green tea soup is influenced, and fructo-oligosaccharide, xylo-oligosaccharide and stachyose are all suitable for the invention in consideration of comprehensive mouthfeel, oligosaccharide price and effect. And also oligosaccharides obtainable by enzymatic methods. Wherein, the enzymatic method comprises the following steps: pulverizing and sieving raw materials containing natural polysaccharide or polysaccharide complex, and hydrolyzing with hydrolase to obtain oligosaccharide.
Preferably, the preparation process of the modified maltodextrin comprises the following steps: drying the maltodextrin at 110-120 ℃ for 2-3 h, adding water to prepare a maltodextrin aqueous solution, heating the maltodextrin aqueous solution to 85-95 ℃, preserving heat for 10-15 min, cooling to below 50 ℃, adding ethanol to obtain a maltodextrin ethanol-aqueous solution A, filtering to remove precipitated precipitate to obtain a filtrate, adding ethanol to the filtrate to obtain a maltodextrin ethanol-aqueous solution B, filtering to obtain a solid phase, and drying until no alcohol smell exists to obtain the modified maltodextrin.
More preferably, the volume fraction of ethanol in the maltodextrin ethanol-water solution A is 10-15%, and the volume fraction of ethanol in the maltodextrin ethanol-water solution B is 85-90%.
More preferably, the liquid-solid volume mass ratio of water to maltodextrin in the maltodextrin aqueous solution is 2-3L: 1 kg.
In the research process, the invention discovers that the moisture absorption resistance of the baked maltodextrin is obviously enhanced, and the melting speed of the baked maltodextrin in hot water is reduced, so that the prepared nutrition enhancer can be slowly disintegrated in the hot water, namely the slow release in the brewing process can be realized.
However, in the research process, if the modified maltodextrin obtained after recrystallization is only adopted, the moisture-absorption-resistant nutrition enhancer can be slowly disintegrated or slightly cannot be disintegrated in the actual water soaking process, so that the nutrition efficacy of the moisture-absorption-resistant nutrition enhancer is reduced, and a large number of experiments show that the problems can be effectively avoided by removing precipitated impurities precipitated under a low-proportion alcohol-soluble solution. Then recrystallizing and separating out by using alcohol solution with high proportion, and drying to obtain the modified maltodextrin.
Preferably, the preparation process of the moisture-resistant nutrition enhancer comprises the following steps: the moisture-absorption-resistant nutrition enhancer is prepared by mixing the raw materials in the moisture-absorption-resistant nutrition enhancer according to a designed proportion, adding water until the raw materials are completely dissolved to obtain a mixed solution, and performing spray drying on the mixed solution.
In the preparation process of the moisture-absorption-resistant nutrition enhancer, the adding amount of water in the mixed solution does not need to be accurately controlled, and only the components in the moisture-absorption-resistant nutrition enhancer can be completely dissolved. Spray drying may be carried out using conventional techniques.
Preferably, the weight-losing dark tea solid beverage with moisture absorption resistance comprises 4-10 parts of dark tea, 0.5-4 parts of lotus leaves, 0.2-2 parts of cassia seeds and 0.05-0.2 part of moisture absorption-resisting nutrition enhancer by weight.
In the invention, the tea tree bud and leaf tenderness range of the black tea raw material used for the weight-reducing black tea solid beverage is wider, and if the tea tree bud and leaf tenderness is lower, the tea polysaccharide content is higher, and the tea tree bud and leaf tenderness has certain synergy with the action of lotus leaves, so that the use amount of the lotus leaves can be properly reduced. The semen cassiae is bitter in taste, and if the semen cassiae is prepared into the weight-losing and health-care dark tea with tea tree bud leaves with lower tenderness, the dark and heavy mouthfeel is slightly astringent, and the dosage of the semen cassiae is reduced to avoid influencing the mouthfeel. The oligosaccharide can also adjust the flavor, particularly the flavor of the first three tea bags, and the oligosaccharide prepared by the enzyme method has rich but weak flavor and low content of active ingredients, so the dosage of the oligosaccharide needs to be increased. The nutrition enhancer has less influence on mouthfeel, can be adjusted according to effects within an allowable adding range, and can improve the proportion of the nutrition enhancer if the tender degree of tea tree buds and leaves is higher.
Preferably, in the moisture-absorption-resistant weight-losing dark tea solid beverage, the dark tea accounts for 6-8 parts by weight, the lotus leaves account for 1-2 parts by weight, the cassia seeds account for 0.3-0.5 part by weight, and the moisture-absorption-resistant nutrition enhancer accounts for 0.1-0.15 part by weight.
Preferably, the anti-moisture-absorption weight-losing dark tea solid beverage can be made into a tea bag or a tea cake to meet the entertainment, leisure and customer-waiting requirements of modern people of different ages and different living habits.
The invention also provides a preparation method of the weight-losing dark green tea solid beverage, which comprises the following steps:
the method comprises the following steps:
shredding lotus leaves, rolling into strips, and drying to obtain lotus leaf strips;
step two:
respectively crushing and sieving the lotus leaf strips, the dark tea and the cassia seeds, adding the lotus leaf strips, the dark tea and the cassia seeds into a tea bag according to a designed proportion, and adding a moisture absorption resistant nutrition enhancer to obtain a moisture absorption resistant weight-losing health-care dark tea bag;
or
Steaming the dark tea till the dark tea is softened, uniformly mixing the softened dark tea with the lotus leaf strips, the cassia seeds and the moisture-absorption-resistant nutrition enhancer according to a designed proportion, pressing, internally packaging and drying to obtain the moisture-absorption-resistant weight-losing health-care dark tea cake.
More preferably, in the second step, the number of the sieving meshes is 30-40 meshes.
In the invention, the rolling and crushing can adopt the prior conventional technology; the steaming softening can adopt the existing method of steaming the dark green tea, and the steaming operation is added before the cake pressing, so that the black tea can be prevented from being cracked in the tea cake pressing process, and the quality of the black tea is protected.
Preferably, the pressed tea cake can be in various shapes and printed with various patterns and characters, and the size is not limited; this is convenient for tea factories to make various shapes and lettering with memorial significance, and is beneficial to the inheritance of tea culture.
More preferably, the size of the tea cake is 5-30 g. The tea cake is convenient to store, carry and brew.
In the preparation process of the anti-moisture-absorption weight-losing health-care dark green tea, one or more of pine wood baking, charcoal baking and oven drying can be adopted for drying, and the drying modes can adopt the existing conventional technology.
Has the advantages that:
the invention provides a technical idea of comprehensively breaking a plurality of weight-losing barriers, reducing the moisture absorption effect of moisture absorption components and not losing main active ingredients in the tea washing process, namely a synergistic scheme is provided for the clinical problem of obesity of modern people to realize effective weight-losing health care; meanwhile, the moisture absorption resistance of the added components and the slow release effect in brewing are realized through the innovative modified maltodextrin.
Obesity of modern people is a complex metabolic syndrome, a single component or a single component which conforms to an ancient prescription can not meet the requirement of weight-losing and health-care of modern people, and effective weight-losing and health-care can be realized through multi-component targeted synergistic health-care effect. Meanwhile, the modified maltodextrin disclosed by the invention has the performance of resisting moisture absorption and slow dissolution in hot water after simple physical modification, and can realize moisture absorption resistance protection on an easily moisture-absorbing additive and realize slow release in brewing.
Drawings
FIG. 1 is a release profile of a nutrient supplement;
fig. 2 shows the weight-reducing effect of rats after taking the anti-moisture absorption weight-reducing dark green tea solid beverage provided by the invention.
Detailed Description
The present invention is described in detail below with reference to preferred embodiments.
The black tea is provided by the limited responsibility company of Baishaxi tea factory in Hunan province; the lotus leaves are picked fresh lotus leaves and drained; the cassia seed meets the quality requirement of the pharmacopoeia of the people's republic of China (2015 edition); the quality of the L-carnitine accords with GB 1903.13-2016; stachyose is P80 type, and the quality accords with QB/T4260-2011.
Example 1
An anti-hygroscopic nutrition enhancer comprises 2 portions of L-carnitine, 4 portions of stachyose and 2 portions of modified maltodextrin according to weight portion.
The moisture resistant nutrition enhancer of this example includes the following preparation process:
(1) baking the maltodextrin at 120 ℃ for 2h, and then adding water to prepare a maltodextrin aqueous solution, wherein the liquid-solid volume mass ratio of the water to the maltodextrin is 2L: 1kg, heating to 90 deg.C for 10min, cooling to below 50 deg.C, adding ethanol until the volume fraction of ethanol in the solution is 15%, and filtering to remove precipitate. And adding ethanol into the filtrate until the volume fraction of the ethanol in the solution is 85%, filtering to obtain a filter cake, and drying at 70 ℃ until no alcohol smell exists, thus obtaining the modified maltodextrin.
(2) The modified maltodextrin, L-carnitine and stachyose are dissolved completely in water and spray dried to obtain the moisture-absorbing resisting nutrient reinforcing agent.
The prepared moisture absorption resistant nutrition enhancer has obvious moisture absorption resistant effect and slow dissolution performance, and is detailed in table 1 and figure 1.
Comparative example 2
Compared with example 1, the difference is that the modified maltodextrin is not used for protection, and the specific steps are as follows:
a nutrition enhancer comprises 2 weight parts of L-carnitine and 4 weight parts of stachyose, and common nutrition enhancer can be obtained by directly mixing stachyose and L-carnitine in proportion.
The prepared nutrition enhancer completely has no moisture absorption resistance and slow release capacity, and the details are shown in table 1 and figure 1.
Comparative example 3
Compared with example 1, the difference is that the low concentration alcohol solution is not purified, which is as follows:
a nutrition enhancer comprises 2 weight parts of L-carnitine, 4 weight parts of stachyose and 2 weight parts of modified maltodextrin.
The moisture absorption resistant nutrition enhancer of this example includes the following preparation process:
(1) baking the maltodextrin at 120 ℃ for 2h, and then adding water to prepare a maltodextrin aqueous solution, wherein the liquid-solid volume mass ratio of the water to the maltodextrin is 2L: 1kg, heating to 90 ℃ for 10min, cooling to below 50 ℃, adding ethanol until the volume fraction of the ethanol in the solution is 85%, filtering to obtain a filter cake, and drying at 70 ℃ until no alcohol smell exists, thereby obtaining the modified maltodextrin.
(2) The modified maltodextrin, L-carnitine and stachyose are dissolved completely in water and spray dried to obtain the moisture-absorbing resisting nutrient reinforcing agent.
The prepared nutrition enhancer has remarkable moisture absorption resisting effect, is dissolved too slowly and has residue, and is detailed in table 1 and figure 1.
Comparative example 4
The difference from example 1 is that the recrystallization is followed by a heat treatment, as follows:
a nutrition enhancer comprises 2 parts of L-carnitine, 4 parts of stachyose and 2 parts of modified maltodextrin.
The moisture resistant nutrition enhancer of this example includes the following preparation process:
(1) adding maltodextrin into water to prepare a maltodextrin aqueous solution, wherein the liquid-solid volume mass ratio of the water to the maltodextrin is 2L: 1kg, heating to 90 ℃ for 10min, cooling to below 50 ℃, adding ethanol until the volume fraction of the alcohol in the solution is 85%, filtering to obtain a filter cake, drying at 70 ℃ until no alcohol smell exists, and drying at 120 ℃ for 2h to obtain the modified maltodextrin.
(2) The modified maltodextrin, L-carnitine and stachyose are dissolved completely in water and spray dried to obtain the moisture-absorbing resisting nutrient reinforcing agent.
The prepared nutrition enhancer has remarkable moisture absorption resisting effect, but poor slow dissolution performance, and is detailed in table 1 and figure 1.
Comparison of effects
The instrument comprises the following steps: thermostat, 50mL beaker filled with excess saturated sodium chloride solution, empty beaker, watch glass, non-woven bag
Sample preparation: (ii) the moisture resistant nutrient supplement prepared in example 1 (sample 1); ② the nutrition enhancer (sample 2) prepared in comparative example 2; ③ the nutrient supplement (sample 3) prepared in comparative example 3; fourthly, the nutrient supplement (sample 4) prepared in the comparative example 4
And (3) detection process:
(1) two samples, 5.000g each, were placed on a dry petri dish and the mass m1 recorded for each dish. The three petri dishes were placed in a 25 ℃ incubator and placed in a beaker filled with saturated sodium chloride solution. After 24h, the mass m2 and m2-m1 of each petri dish were recorded as the water absorption of the sample. And (5) putting the sample back into the constant temperature box again, taking out the sample after two days, observing and recording the hardening condition of the sample.
And (3) detection results:
TABLE 1 test results record
According to the detection results, the moisture absorption of the nutrition enhancer is well improved after the three modified maltodextrins are protected, and the moisture absorption resistance requirements of the dark tea can be met.
(2) 2g of the moisture-absorption-resistant nutrition enhancer of example 1 (the sample of the invention), 1.5g of the nutrition enhancer of comparative example 2 (the common sample), 2g of the nutrition enhancer of comparative example 3 (the comparative sample 1) and 2g of the nutrition enhancer of comparative example 4 (the comparative sample 2) are respectively taken out of four non-woven fabric bags, sealed, placed in four beakers, respectively added with 100mL of hot water at 95 ℃, taken out of the supernatant liquid sample every 5s, checked for the content of dissolved stachyose according to QB/T4260 and the other 2011, and after the total dissolved amount is converted, a dissolved-time image is drawn, as shown in figure 1.
According to the judgment of the dissolution curve, after the protection of the resistant maltodextrin, the nutrition enhancer has good slow release effect, and the nutrition enhancer can be prevented from being washed away in the tea washing process.
Example 5
A moisture-absorption-resistant weight-losing health-care dark tea bag comprises 6 parts of dark tea by weight, 1 part of lotus leaves by weight, 0.5 part of cassia seeds by weight and 0.1 part of moisture-absorption-resistant nutrition enhancer (prepared in example 1) by weight.
The anti-moisture-absorption weight-losing dark tea solid beverage of the embodiment comprises the following preparation processes: shredding, rolling and drying lotus leaves, crushing the lotus leaf strips, the dark tea and the cassia seeds, sieving by a 30-mesh sieve, adding the lotus leaf strips, the dark tea and the cassia seeds into a tea bag according to a proportion, and adding a moisture absorption resistant nutrition enhancer to obtain the moisture absorption resistant weight-losing dark tea solid beverage tea bag.
The prepared anti-moisture-absorption weight-losing dark tea solid beverage tea bag has good taste, certain moisture-proof capability and good weight-losing and health-care effects, and is detailed in tables 2 and 3 and figure 2.
Example 6
A moisture-absorption-resistant weight-losing dark tea solid beverage tea cake comprises 8 parts of dark tea by weight, 2 parts of lotus leaves by weight, 0.3 part of cassia seeds by weight and 0.12 part of moisture-absorption-resistant nutrition enhancer (prepared in example 1).
The anti-moisture-absorption weight-losing dark tea solid beverage tea cake comprises the following preparation processes: shredding and twisting lotus leaves into strips; steaming the dark tea till the dark tea is softened, subpackaging the dark tea, the lotus leaf strips, the cassia seeds and the moisture-absorption-resistant nutrition enhancer according to the amount, pressing, internally packaging and drying to obtain the moisture-absorption-resistant weight-losing health-care dark tea cake.
The prepared anti-moisture-absorption weight-losing dark tea solid beverage tea cake has good taste, certain moisture-proof capability and good weight-losing and health-care effects, and is detailed in tables 2 and 3 and figure 2.
Example 7
Compared with the example 6, the difference is that the components of the moisture-resistant nutrition enhancer are changed, and the specific steps are as follows:
a moisture-absorption-resistant weight-losing dark tea solid beverage tea cake comprises 8 parts of dark tea by weight, 2 parts of lotus leaves by weight, 0.3 part of cassia seeds by weight and 0.10 part of moisture-absorption-resistant nutrition enhancer by weight.
The anti-moisture-absorption weight-losing dark tea solid beverage tea cake of the embodiment comprises the following preparation processes: shredding and twisting lotus leaves into strips; steaming the dark tea till the dark tea is softened, subpackaging the dark tea, the lotus leaf strips, the cassia seeds and the moisture-absorption-resistant nutrition enhancer according to the amount, pressing, internally packaging and drying to obtain the moisture-absorption-resistant weight-losing dark tea solid beverage tea cake.
Wherein, the moisture-absorption-resistant nutrition enhancer contains 2 parts of L-carnitine, 4.5 parts of xylo-oligosaccharide and 2 parts of modified maltodextrin, and the preparation process is the same as that of the example 1.
The prepared anti-moisture-absorption weight-losing dark tea solid beverage tea cake has good taste, certain moisture-proof capability and good weight-losing and health-care effects, and is detailed in tables 2 and 3 and figure 2.
Therefore, different oligosaccharides can play a synergistic role in weight reduction and health care as long as the requirements of the oligosaccharides as prebiotics are met.
Comparative example 8
Compared with the example 6, the difference lies in that the formula for coordinating weight loss provided by the invention is not adopted, and the specific steps are as follows:
a black tea solid beverage tea cake comprises 8 parts of black tea by weight, 2 parts of lotus leaves by weight and 0.12 part of moisture absorption resistant nutrition enhancer (prepared in example 1).
The anti-moisture-absorption weight-losing dark tea solid beverage tea cake of the embodiment comprises the following preparation processes: shredding and twisting lotus leaves into strips; steaming the dark tea till the dark tea is softened, subpackaging the dark tea, the lotus leaves and the moisture absorption resistant nutrition enhancer according to the amount, pressing, internally packaging and drying to obtain the dark tea cake.
The prepared black tea solid beverage tea cake has good taste and certain moisture resistance, but has insufficient weight-losing effect, and the details are shown in tables 2 and 3 and figure 2.
Therefore, the formula provided by the invention can play a high-efficiency synergistic effect, and realize weight-losing health care.
Comparison of effects
The instrument comprises the following steps: electric kettle, purple sand kettle, thermometer, justice cup and timer
Reagent: artificial intestinal juice; bifidobacterium longum; enterococcus bacteria; SD male rats, general feed (containing about 45% carbohydrate, 25% protein, 7.5% fat, 3.5% cellulose and 8% inorganic salt), high fat feed (0.8 parts by weight of general feed +0.1 parts by weight of lard +0.1 parts by weight of egg yolk powder)
Sample preparation: a weight-reducing health-care dark tea obtained in example 5 (sample 1 in table 2); ② the weight-reducing health-care dark tea obtained in the example 6 (sample 2 in the table 2); ③ the weight-reducing and health-care dark tea obtained in example 7 (sample 3 in table 2); fourthly, the weight-losing and health-care dark tea obtained in the comparative example 8 (sample 4 in the table 2); fifthly, dark tea.
According to the following: method for testing weight-reducing function in health food inspection and evaluation technical Specification (2003 edition)
The experimental process comprises the following steps:
(1) taking 10g of each sample, placing the sample in a dark-red enameled pottery, adding boiling water, and pouring out tea soup (marked as a first bubble) after eight seconds; and opening the teapot cover and standing the tea for 30 s. Slowly pouring boiling water, pouring out tea soup (marked as second soaking) after 10 s; slowly pouring boiling water again, and pouring out tea soup (marked as the third infusion) after 7 s; mixing the three-tea soup, concentrating, sterilizing at high temperature, adding into artificial small intestine solution containing Bacillus bifidus and enterococcus, culturing, detecting and recording the change of two strains (counting number of plate containing only black tea soup paste is 1), and recording in Table 2.
(2) Evaluation of weight loss effect on obese mice:
A. modeling: 48 SD male rats with body weight of 110 + -5 g were randomly divided into two groups, 8 in the normal group (average body weight of 108.6g), 40 in the obese group (average body weight of 105.4 g): the normal group was fed with normal feed (normal mice); the obese group was fed with high fat diet, and the average mass of mice in the obese group was greater than 120% of that in the normal group after 50 days (354.0 g, 439.2g, respectively).
B. The normal group was designated as the first group, and the obese group was randomly divided into the second, third, fourth, fifth and sixth groups (average body weights 440.4g, 438.0g, 441.7g, 436.7g, 439.4g, respectively). The first group was continued to be fed with normal diet and the second to six groups were continued to be fed with high fat diet. The concentrated solutions of examples 5 to 7 and comparative example 8 were obtained according to the method described in (1), 0.2g of the concentrated solution of example 5 was diluted with distilled water and then the third group was subjected to intragastric administration, the fourth, fifth and sixth groups were subjected to intragastric administration instead of the concentrated solutions of examples 6, 7 and comparative example 8, respectively, and one and two groups were subjected to intragastric administration with distilled water only for 40 days, and the average body weight of each group of mice after 40 days was recorded, and the data are shown in table 3.
And (3) comparing the results:
TABLE 2 comparative results record
It can be seen that the tea soup in the examples and the comparative examples can increase beneficial bacteria in intestinal tracts, control harmful bacteria and regulate intestinal health.
TABLE 3SD rat body weight records
From the data of the third to fifth groups, the tea soup in the embodiment can effectively offset obesity caused by diet of obese rats, and the weight-losing and health-care purposes are remarkably achieved. The sixth group of data shows that the weight-losing health-care formula which is not proposed according to the invention can also play a role in losing weight to a certain extent, but lacks the synergistic effect, and has poor weight-losing health-care effect.
Claims (8)
1. The anti-moisture-absorption weight-losing dark tea solid beverage is characterized in that: the black tea beverage comprises black tea, lotus leaves, cassia seeds and a moisture absorption resistant nutrition enhancer, wherein the moisture absorption resistant nutrition enhancer comprises modified maltodextrin, and the modified maltodextrin is obtained by removing impurities from dried maltodextrin, recrystallizing and drying;
the preparation process of the modified maltodextrin comprises the following steps: drying maltodextrin at 110-120 ℃ for 2-3 h, adding water to prepare a maltodextrin aqueous solution, heating the maltodextrin aqueous solution to 85-95 ℃, preserving heat for 10-15 min, cooling to below 50 ℃, adding ethanol to obtain a maltodextrin ethanol-aqueous solution A, filtering to remove precipitate to obtain a filtrate, adding ethanol to the filtrate to obtain a maltodextrin ethanol-aqueous solution B, filtering to obtain a solid phase, and drying until no alcohol smell exists to obtain modified maltodextrin;
in the maltodextrin ethanol-water solution A, the volume fraction of ethanol is 10-15%, and in the maltodextrin ethanol-water solution B, the volume fraction of ethanol is 85-90%.
2. The anti-moisture-absorption weight-losing dark tea solid beverage as claimed in claim 1, is characterized in that: in the moisture absorption resistant nutrition enhancer, the mass fraction of the modified maltodextrin is 10-40%.
3. The anti-moisture-absorption weight-losing dark tea solid beverage as claimed in claim 1, is characterized in that: the moisture-absorption-resisting nutrition enhancer is prepared by mixing oligosaccharide, a weight-reducing nutrient and modified maltodextrin, wherein the weight-reducing nutrient is selected from at least one of L-carnitine and L-carnitine tartrate; the oligosaccharide is at least one of fructo-oligosaccharide, xylo-oligosaccharide and stachyose.
4. The anti-moisture-absorption weight-losing dark tea solid beverage as claimed in claim 1, is characterized in that: in the moisture-absorption-resistant nutrition enhancer, the weight parts of oligosaccharide are 3-8, the weight parts of weight-reducing nutrition agent are 1-3, and the weight parts of modified maltose are 1-4.
5. The anti-moisture-absorption weight-losing dark tea solid beverage as claimed in claim 1, is characterized in that: the preparation process of the moisture-absorption-resistant nutrition enhancer comprises the following steps: the moisture-absorption-resistant nutrition enhancer is prepared by mixing the raw materials in the moisture-absorption-resistant nutrition enhancer according to a designed proportion, adding water until the raw materials are completely dissolved to obtain a mixed solution, and performing spray drying on the mixed solution.
6. The anti-moisture-absorption weight-losing dark tea solid beverage according to any one of claims 1 to 5, which is characterized in that: in the moisture-absorption-resistant weight-losing dark tea solid beverage, the dark tea is 4-10 parts by weight, the lotus leaf is 0.5-4 parts by weight, the cassia seed is 0.2-2 parts by weight, and the moisture-absorption-resistant nutrition enhancer is 0.05-0.2 part by weight.
7. The method for preparing the anti-moisture-absorption weight-losing dark green tea solid beverage as claimed in any one of claims 1 to 6, wherein the method comprises the following steps:
the method comprises the following steps:
shredding lotus leaves, rolling into strips, and drying to obtain lotus leaf strips;
step two:
respectively crushing and sieving the lotus leaf strips, the dark tea and the cassia seeds, adding the lotus leaf strips, the dark tea and the cassia seeds into a tea bag according to a designed proportion, and adding a moisture absorption resistant nutrition enhancer to obtain a moisture absorption resistant weight-losing health-care dark tea bag;
or
Steaming the dark tea till the dark tea is softened, uniformly mixing the softened dark tea with the lotus leaf strips, the cassia seeds and the moisture-absorption-resistant nutrition enhancer according to a designed proportion, pressing, internally packaging and drying to obtain the moisture-absorption-resistant weight-losing health-care dark tea cake.
8. The preparation method of the anti-moisture-absorption weight-losing dark tea solid beverage according to claim 7, wherein the preparation method comprises the following steps: in the second step, the number of the sieving meshes is 30-40 meshes.
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