Composition for improving cardiovascular function as well as preparation method and application thereof

Abstract

The invention relates to the field of pet food, and discloses a composition for improving cardiovascular functions and a preparation method and application thereof. The composition for improving the cardiovascular function is prepared from 20 to 30 parts of plant extract, 100 to 250 parts of fruit powder, 100 to 250 parts of vegetable powder and 60 to 200 parts of enzymolysis fresh chicken powder, the plant extract comprises a milk thistle extract, a hawthorn extract and an angelica sinensis extract, and the weight ratio of the milk thistle extract to the hawthorn extract to the angelica sinensis extract is 1: (2-3): (0.3-0.5). The composition can enhance the cardiovascular function of the old dogs and promote blood circulation, and is balanced in nutrition and easy to digest and absorb.

Description

Technical Field

[0001] The present application relates to the field of pet food, and more specifically, to a composition for improving cardiovascular function, and a preparation method and application thereof. Background Art

[0002] As the most loyal emotional sustenance of human beings, the health and longevity of pets are becoming the good wishes of pet owners. Depending on factors such as breed, body shape and living environment, the average lifespan of dogs is between 7 and 18 years. With the stability and development of the pet economy, more and more pet dogs are gradually aging and entering the middle-aged and elderly stage. Cardiovascular disease is one of the common health problems of elderly dogs. It has the characteristics of high morbidity, high disability rate and high mortality rate, which seriously threatens the health and lifespan of elderly dogs.

[0003] In the field of pet food, research on dog food for the elderly, for example, provides comprehensive nutritional support by adding trace element supplements (such as carrots, sweet potatoes, bananas and other vitamin-rich ingredients), energy supplements (such as chicken breast, pork liver, beef and other high-protein ingredients) and enhancers (such as astragalus, raw earth, buffalo horn and other Chinese herbal ingredients), and attempts to solve the problem that dog food cannot supplement energy according to the dog's needs.

[0004] However, traditional dog food often focuses on providing high-protein and high-nutrition substances, but this may also lead to overnutrition, increase the burden on various systems of elderly dogs, and then cause or aggravate cardiovascular diseases such as hypertension and hyperlipidemia. Therefore, it is particularly urgent to develop a dog food that can meet the special needs of elderly dogs and effectively improve cardiovascular function. Summary of the invention

[0005] The present invention aims to develop a food composition for elderly dogs with the core of improving cardiovascular function, and to provide a healthier and more scientific dietary choice for elderly dogs by adding special ingredients with cardiovascular protective effects.

[0006] In order to achieve the above invention objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a composition for improving cardiovascular function, comprising the following components by weight: 20 to 30 parts of plant extract, 100 to 250 parts of fruit powder, 100 to 250 parts of vegetable powder, and 60 to 200 parts of enzymatic fresh chicken powder;

[0008] The plant extract comprises milk thistle extract, hawthorn extract and angelica extract, and the weight ratio of the milk thistle extract, hawthorn extract and angelica extract is 1:(2-3):(0.3-0.5).

[0009] Furthermore, the weight ratio of the milk thistle extract, the hawthorn extract and the angelica extract is 1:2.5:0.4.

[0010] Furthermore, the preparation method of the milk thistle extract is:

[0011] The milk thistle is cleaned to remove surface impurities, dried and crushed to obtain milk thistle powder;

[0012] Add milk thistle powder to 5-6 times the amount of 50-60% ethanol solution and soak at 30-40°C for 10-12 hours, extract twice in total, and combine the extracts;

[0013] The milk thistle extract is obtained by filtering, concentrating, purifying, drying and crushing.

[0014] Furthermore, the preparation method of the hawthorn extract is:

[0015] The hawthorn is washed to remove surface impurities, dried and crushed to obtain hawthorn powder;

[0016] Add hawthorn powder to 6-7 times the amount of water and soak at 50-60°C for 3-4 hours;

[0017] Heat to 98-100°C and boil for 2-3 hours, stirring at 80-120 rpm;

[0018] Add water to 6-7 times the amount, maintain 98-100℃, and continue to boil for 2-3 hours, stirring at 80-120rpm;

[0019] Add water to 3-4 times the amount, maintain 98-100℃, and continue to boil for 1-2 hours, stirring at 60-80rpm;

[0020] The mixture is filtered, concentrated, dried and crushed to obtain a hawthorn extract.

[0021] Furthermore, the preparation method of the angelica extract is:

[0022] The angelica sinensis is washed to remove surface impurities, dried and then crushed to obtain angelica sinensis powder;

[0023] Add angelica powder to 8 to 10 times the amount of 60 to 70% ethanol solution and soak at a temperature of 30 to 40°C for 30 to 40 minutes;

[0024] Ultrasonic extraction was performed at a frequency of 55 to 60 kHz for 40 to 50 min;

[0025] Filter and remove solid impurities to obtain an extract, which is then concentrated, dried, and crushed to obtain an angelica extract.

[0026] Furthermore, the preparation method of the enzymatically hydrolyzed fresh chicken powder is as follows:

[0027] Take fresh chicken breast, wash and remove impurities, mince, add appropriate amount of water and adjust the pH to 6.0-6.5, heat to 55-60℃ and keep for 20-30min;

[0028] Add 0.2-0.4% (by weight) of papain to the raw material, and perform enzymolysis at 55-60° C. for 4-6 hours;

[0029] Heat to 90-92°C and maintain for 10-20 minutes;

[0030] Filter, concentrate, dry and crush to obtain enzymatically hydrolyzed fresh chicken powder.

[0031] Furthermore, the fruit powder comprises the following components by weight: 10 to 20 parts of kiwi powder, 10 to 15 parts of raspberry powder, and 8 to 18 parts of apple powder.

[0032] Furthermore, the vegetable powder includes the following components by weight: 10 to 20 parts of broccoli, 8 to 20 parts of kale, 10 to 15 parts of spinach, and 5 to 10 parts of konjac flour.

[0033] In a second aspect, the present application provides a method for preparing the composition for improving cardiovascular function described in the first aspect, comprising the following steps:

[0034] Prepare milk thistle extract, hawthorn extract and angelica extract respectively, and mix them according to weight ratio to obtain plant extract;

[0035] Prepare enzymatic fresh chicken powder, add fruit powder and vegetable powder and stir to mix;

[0036] Add the plant extract and continue to mix to obtain the composition for improving cardiovascular function.

[0037] In a third aspect, the present application provides the use of the composition for improving cardiovascular function described in the first aspect in preparing food for elderly dogs, wherein the addition amount of the composition for improving cardiovascular function is 1 to 2% (by weight).

[0038] In summary, this application has the following beneficial effects:

[0039] 1. The composition of the present application has a positive effect on the cardiovascular health of pets:

[0040] It can enhance cardiovascular function. Among them, milk thistle extract: has liver protection, anti-oxidation and anti-inflammatory effects, which helps maintain the normal function of the cardiovascular system; hawthorn extract: has the effects of clearing turbidity and lowering lipids, strengthening the heart, antibacterial and enhancing immunity, can promote fat digestion in the body, improve hyperlipidemia, and thus protect cardiovascular health; angelica extract: has the effects of nourishing blood, activating blood circulation, regulating menstruation and relieving pain, and also has a certain protective effect on the cardiovascular system.

[0041] It can promote blood circulation. The plant extracts and fruit and vegetable powders in the composition are rich in vitamins, minerals and dietary fiber, which help promote blood circulation in pets and reduce the risk of cardiovascular diseases.

[0042] 2. The composition of the present application is nutritionally balanced and easy to digest and absorb:

[0043] The composition comprises a variety of plant extracts, fruit powder, vegetable powder and enzymatically hydrolyzed fresh chicken powder, which provides comprehensive nutritional support for pets and helps maintain the overall health of pets; the fruit powder and vegetable powder are rich in dietary fiber and vitamins, which help promote the intestinal peristalsis and digestion and absorption of pets; the enzymatically hydrolyzed fresh chicken powder is enzymatically treated to improve palatability, and is easier for pets to digest and absorb, providing a high-quality protein source. DETAILED DESCRIPTION

[0044] The technical scheme and effects of the present application are further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention, rather than to limit the invention.

[0045] It is worth noting that the raw materials used in this application are all commercially available unless otherwise specified; the methods used in this application are all existing methods unless otherwise specified.

[0046] Preparation Example 1: Milk Thistle Extract

[0047] This preparation example discloses a milk thistle extract, which is prepared by the following method:

[0048] The milk thistle is cleaned to remove surface impurities, dried and crushed to obtain milk thistle powder;

[0049] Add milk thistle powder to 5 times the amount of 60% ethanol solution and soak at 30°C for 12 hours, extract twice in total, and combine the extracts;

[0050] The milk thistle extract is obtained by filtering, concentrating, purifying, drying and crushing.

[0051] Preparation Example 2: Milk Thistle Extract

[0052] This preparation example discloses a milk thistle extract, which is prepared by the following method:

[0053] The milk thistle is cleaned to remove surface impurities, dried and crushed to obtain milk thistle powder;

[0054] Add milk thistle powder to 5.5 times the amount of 55% ethanol solution and soak at 35°C for 11 hours, extract twice in total, and combine the extracts;

[0055] The milk thistle extract is obtained by filtering, concentrating, purifying, drying and crushing.

[0056] Preparation Example 3: Milk Thistle Extract

[0057] This preparation example discloses a milk thistle extract, which is prepared by the following method:

[0058] The milk thistle is cleaned to remove surface impurities, dried and crushed to obtain milk thistle powder;

[0059] Add milk thistle powder to 6 times the amount of 50% ethanol solution and soak at 40°C for 10 hours, extract twice in total, and combine the extracts;

[0060] The milk thistle extract is obtained by filtering, concentrating, purifying, drying and crushing.

[0061] Preparation Example 4: Hawthorn Extract

[0062] This preparation example discloses a hawthorn extract, which is prepared by the following method:

[0063] The hawthorn is washed to remove surface impurities, dried and crushed to obtain hawthorn powder;

[0064] Add hawthorn powder to 6 times the amount of water and soak at 50°C for 4 hours;

[0065] Heat to 98-100°C and cook for 3 hours, stirring at 80 rpm;

[0066] Add water to 6 times the amount, maintain 98-100℃, and continue to boil for 3 hours, stirring at 80rpm;

[0067] Add water to 3 times the amount, maintain 98-100℃, and continue to boil for 2h, stirring at 60rpm;

[0068] The mixture is filtered, concentrated, dried and crushed to obtain a hawthorn extract.

[0069] Preparation Example 5: Hawthorn Extract

[0070] This preparation example discloses a hawthorn extract, which is prepared by the following method:

[0071] The hawthorn is washed to remove surface impurities, dried and crushed to obtain hawthorn powder;

[0072] Add hawthorn powder to 6.5 times the amount of water and soak at 55°C for 3.5 hours;

[0073] Heat to 98-100°C and cook for 2.5 hours, stirring at 100 rpm;

[0074] Add water to 6.5 times the amount, maintain 98-100℃, and continue to boil for 2.5h, stirring at 100rpm during the process;

[0075] Add water to 3.5 times the amount, maintain 98-100℃, and continue to boil for 1.5h, stirring at 70rpm;

[0076] The mixture is filtered, concentrated, dried and crushed to obtain a hawthorn extract.

[0077] Preparation Example 6: Hawthorn Extract

[0078] This preparation example discloses a hawthorn extract, which is prepared by the following method:

[0079] The hawthorn is washed to remove surface impurities, dried and crushed to obtain hawthorn powder;

[0080] Add hawthorn powder to 7 times the amount of water and soak at 60°C for 3 hours;

[0081] Heat to 98-100°C and cook for 2 hours, stirring at 120 rpm;

[0082] Add 7 times the amount of water, maintain 98-100℃, and continue to cook for 2h, stirring at 120rpm;

[0083] Add water to 4 times the amount, maintain 98-100℃, and continue to boil for 1 hour, stirring at 80 rpm;

[0084] The mixture is filtered, concentrated, dried and crushed to obtain a hawthorn extract.

[0085] Preparation Example 7: Angelica Extract

[0086] This preparation example discloses an angelica extract, which is prepared by the following method:

[0087] The angelica sinensis is washed to remove surface impurities, dried and then crushed to obtain angelica sinensis powder;

[0088] Add angelica powder to 8 times the amount of 70% ethanol solution and soak at 30°C for 40 minutes;

[0089] Ultrasonic extraction was performed at a frequency of 55 kHz for 50 min;

[0090] Filter and remove solid impurities to obtain an extract, which is then concentrated, dried, and crushed to obtain an angelica extract.

[0091] Preparation Example 8: Angelica Extract

[0092] This preparation example discloses an angelica extract, which is prepared by the following method:

[0093] The angelica sinensis is washed to remove surface impurities, dried and then crushed to obtain angelica sinensis powder;

[0094] Add angelica powder to 9 times the amount of 65% ethanol solution and soak at 35°C for 35 minutes;

[0095] Ultrasonic extraction was performed at a frequency of 57.5 kHz for 45 min;

[0096] Filter and remove solid impurities to obtain an extract, which is then concentrated, dried, and crushed to obtain an angelica extract.

[0097] Preparation Example 9: Angelica Extract

[0098] This preparation example discloses an angelica extract, which is prepared by the following method:

[0099] The angelica sinensis is washed to remove surface impurities, dried and then crushed to obtain angelica sinensis powder;

[0100] Add angelica powder to 10 times the amount of 60% ethanol solution and soak at 40°C for 30 minutes;

[0101] Ultrasonic extraction was performed at a frequency of 60 kHz for 40 min;

[0102] Filter and remove solid impurities to obtain an extract, which is then concentrated, dried, and crushed to obtain an angelica extract.

[0103] Preparation Example 10: Enzymatic hydrolysis of fresh chicken powder

[0104] This preparation example discloses an enzymatically hydrolyzed fresh chicken powder, which is prepared by the following method:

[0105] Take fresh chicken breast, wash and remove impurities, mince, add appropriate amount of water and adjust the pH to 6.0-6.5, heat to 55℃ and keep for 30min;

[0106] Add 0.2% (by weight) papain to the raw material and perform enzymolysis at 55°C for 6 hours;

[0107] Heat to 90°C for 20 min;

[0108] Filter, concentrate, dry and crush to obtain enzymatically hydrolyzed fresh chicken powder.

[0109] Preparation Example 11: Enzymatic hydrolysis of fresh chicken powder

[0110] This preparation example discloses an enzymatically hydrolyzed fresh chicken powder, which is prepared by the following method:

[0111] Take fresh chicken breast, wash and remove impurities, mince, add appropriate amount of water and adjust the pH to 6.0-6.5, heat to 58℃ and keep for 25min;

[0112] Add 0.3% (by weight) papain to the raw material and perform enzymolysis at 58°C for 5h;

[0113] Heat to 91°C for 15 min;

[0114] Filter, concentrate, dry and crush to obtain enzymatically hydrolyzed fresh chicken powder.

[0115] Preparation Example 12: Enzymatic hydrolysis of fresh chicken powder

[0116] This preparation example discloses an enzymatically hydrolyzed fresh chicken powder, which is prepared by the following method:

[0117] Take fresh chicken breast, wash and remove impurities, mince, add appropriate amount of water and adjust the pH to 6.0-6.5, heat to 60℃ and keep for 20min;

[0118] Add 0.4% (by weight) papain to the raw material and perform enzymolysis at 60°C for 4 hours;

[0119] Heat to 92°C for 10 min;

[0120] Filter, concentrate, dry and crush to obtain enzymatically hydrolyzed fresh chicken powder.

[0121] Preparation Example 13: Fruit Powder

[0122] This preparation example discloses a fruit powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0123] 10 parts kiwi powder, 10 parts raspberry powder, 8 parts apple powder.

[0124] Preparation Example 14: Fruit Powder

[0125] This preparation example discloses a fruit powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0126] 15 parts of kiwi powder, 12.5 parts of raspberry powder, and 13 parts of apple powder.

[0127] Preparation Example 15: Fruit Powder

[0128] This preparation example discloses a fruit powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0129] 20 parts kiwi powder, 15 parts raspberry powder, 18 parts apple powder.

[0130] Preparation Example 16: Vegetable Powder

[0131] This preparation example discloses a vegetable powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0132] 10 parts of broccoli, 8 parts of kale, 10 parts of spinach, and 5 parts of konjac flour.

[0133] Preparation Example 17: Vegetable Powder

[0134] This preparation example discloses a vegetable powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0135] 15 parts of broccoli, 14 parts of kale, 12.5 parts of spinach, and 7.5 parts of konjac flour.

[0136] Preparation Example 18: Vegetable Powder

[0137] This preparation example discloses a vegetable powder, which is obtained by mechanically grinding the following raw materials in parts by weight:

[0138] 20 parts of broccoli, 20 parts of kale, 15 parts of spinach, and 10 parts of konjac flour.

[0139] Example 1-3: Composition for improving cardiovascular function

[0140] This example discloses a composition for improving cardiovascular function. The raw materials used in its preparation are shown in the following table.

[0141] Example 1 Example 2 Example 3 Plant Extracts 20 25 30 Fruit powder 100 175 250 Vegetable powder 100 175 250 Enzymatic fresh chicken powder 60 130 200

[0142] The plant extracts include milk thistle extract (Preparation Example 1), hawthorn extract (Preparation Example 4) and angelica extract (Preparation Example 7), and the weight ratio of the milk thistle extract, hawthorn extract and angelica extract is 1:2:0.3;

[0143] The fruit powder was prepared in Preparation Example 13;

[0144] Vegetable powder was prepared according to Preparation Example 16;

[0145] The enzymatically hydrolyzed fresh chicken powder was prepared according to Preparation Example 10.

[0146] The preparation method of the composition for improving cardiovascular function comprises the following steps:

[0147] Prepare milk thistle extract, hawthorn extract and angelica extract respectively, and mix them according to weight ratio to obtain plant extract;

[0148] Prepare enzymatic fresh chicken powder, add fruit powder and vegetable powder and stir to mix;

[0149] Add the plant extract and continue to mix to obtain the composition for improving cardiovascular function.

[0150] Example 4-5: Composition for improving cardiovascular function

[0151] This embodiment discloses a composition for improving cardiovascular function, which is different from Embodiment 2 in that, in the plant extracts, the weight ratios of milk thistle extract, hawthorn extract and angelica extract are different, and the corresponding relationship is shown in the following table.

[0152] Group Weight ratio of milk thistle extract, hawthorn extract and angelica extract Example 2 1:2:0.3 Example 4 1:2.5:0.4 Example 5 1:3:0.5

[0153] Example 6-9: Composition for improving cardiovascular function

[0154] This embodiment discloses a composition for improving cardiovascular function, which is different from that of Example 2 in that the preparation process of each raw material is different (the addition amount is the same), as shown in the following table.

[0155] Example 2 Example 6 Example 7 Example 8 Example 9 Milk Thistle Extract Preparation Example 1 Preparation Example 2 Preparation Example 3 Preparation Example 2 Preparation Example 2 Hawthorn Extract Preparation Example 4 Preparation Example 5 Preparation Example 6 Preparation Example 5 Preparation Example 5 Angelica Extract Preparation Example 7 Preparation Example 8 Preparation Example 9 Preparation Example 8 Preparation Example 8 Fruit powder Preparation Example 13 Preparation Example 13 Preparation Example 13 Preparation Example 14 Preparation Example 15 Vegetable powder Preparation Example 16 Preparation Example 16 Preparation Example 16 Preparation Example 17 Preparation Example 18 Enzymatic fresh chicken powder Preparation Example 10 Preparation Example 10 Preparation Example 10 Preparation Example 11 Preparation Example 12

[0156] Application example 1: Dog food for the elderly

[0157] This application example discloses a food for elderly dogs, the raw materials used in its preparation include the following components:

[0158] 20 parts of fresh chicken, 10 parts of chicken meal, 5 parts of sweet potato granules, 8 parts of peas, 8 parts of rice protein powder, 1 part of salmon oil, 2 parts of beet pulp, 1 part of inulin, 2.5 parts of multivitamin and multimineral combination;

[0159] The composition for improving cardiovascular function of Example 1 is also included, accounting for 1% (by weight) of the raw material.

[0160] The preparation method of the elderly dog ​​food comprises: dehydrating fresh chicken, and then crushing all raw materials respectively, with the crushing particle size being 1.2-1.5 mm;

[0161] The crushed raw materials are mixed and stirred, and the moisture content is controlled at 22%, the temperature is 105℃, and the pressure is 35-40kg / cm 2 , the screw speed is 215 rpm, the die temperature is 125°C, and the elderly dog ​​food is extruded.

[0162] Application example 2: Dog food for the elderly

[0163] This application example discloses a food for elderly dogs, the raw materials used in its preparation include the following components:

[0164] 20 parts of fresh chicken, 10 parts of chicken meal, 5 parts of sweet potato granules, 8 parts of peas, 8 parts of rice protein powder, 1 part of salmon oil, 2 parts of beet pulp, 1 part of inulin, 2.5 parts of multivitamin and multimineral combination;

[0165] The composition for improving cardiovascular function of Example 1 is also included, accounting for 1.5% (by weight) of the raw material.

[0166] The preparation method of the elderly dog ​​food comprises: dehydrating fresh chicken, and then crushing all raw materials respectively, with the crushing particle size being 1.2-1.5 mm;

[0167] The crushed raw materials are mixed and stirred, and the moisture content is controlled at 22%, the temperature is 105℃, and the pressure is 35-40kg / cm 2 , the screw speed is 215 rpm, the die temperature is 125°C, and the elderly dog ​​food is extruded.

[0168] Application example 3: Dog food for the elderly

[0169] This application example discloses a food for elderly dogs, the raw materials used in its preparation include the following components:

[0170] 20 parts of fresh chicken, 10 parts of chicken meal, 5 parts of sweet potato granules, 8 parts of peas, 8 parts of rice protein powder, 1 part of salmon oil, 2 parts of beet pulp, 1 part of inulin, 2.5 parts of multivitamin and multimineral combination;

[0171] The composition for improving cardiovascular function of Example 1 is also included, accounting for 2% (by weight) of the raw material.

[0172] The preparation method of the elderly dog ​​food comprises: dehydrating fresh chicken, and then crushing all raw materials respectively, with the crushing particle size being 1.2-1.5 mm;

[0173] The crushed raw materials are mixed and stirred, and the moisture content is controlled at 22%, the temperature is 105℃, and the pressure is 35-40kg / cm 2 , the screw speed is 215 rpm, the die temperature is 125°C, and the elderly dog ​​food is extruded.

[0174] Application example 4-11: Dog food for the elderly

[0175] This application example discloses a food for elderly dogs, which is different from application example 2 only in that the preparation process of the composition for improving cardiovascular function is different (the addition amount is the same), and the corresponding relationship is shown in the following table.

[0176] Composition containing eucommia leaf extract Application Examples Example 1 Application Example 2 Example 2 Application Example 4 Example 3 Application Example 5 Example 4 Application Example 6 Example 5 Application Example 7 Example 6 Application Example 8 Example 7 Application Example 9 Example 8 Application Example 10 Example 9 Application Example 11

[0177] Comparative Example 1: Dog Food

[0178] This comparative example discloses a dog food, which is different from Application Example 1 in that the composition for improving cardiovascular function is not added.

[0179] Comparative Example 2: Dog Food

[0180] This comparative example discloses a dog food, which is different from Application Example 1 in that milk thistle extract is not added during the preparation of the composition for improving cardiovascular function.

[0181] Comparative Example 3: Dog Food

[0182] This comparative example discloses a dog food, which is different from Application Example 1 in that no hawthorn extract is added during the preparation of the composition for improving cardiovascular function.

[0183] Comparative Example 4: Dog Food

[0184] This comparative example discloses a dog food, which is different from Application Example 1 in that no angelica extract is added during the preparation of the composition for improving cardiovascular function.

[0185] Performance Testing

[0186] (1) Test subjects:

[0187] 30 healthy dogs were randomly divided into 5 groups, with 6 dogs in each group, and were fed with the dog food of Application Example 1 and Comparative Examples 1-4 respectively.

[0188] (2) Tracking indicators:

[0189] ① Food intake: By recording each dog’s daily food intake, the palatability of the pet food and the dog’s acceptance can be assessed.

[0190] ② Stool score: Preliminary assessment of the digestibility of pet food by observing the shape, color and texture of the stool (1-5 points, 3.5-4 points for ideal health);

[0191] Fecal Scoring Criteria:

[0192] 1 point: the stool is completely liquid (no substantial solid structure);

[0193] 1.5 points, liquid stool with low viscosity;

[0194] 2 points: the stool is relatively moist but not liquid, with some moisture remaining and visible outside the stool;

[0195] 2.5 points: the stool is moist, has a low consistency and is not formed. The stool can hold water without any water floating on the surface.

[0196] 3 points: the stool is moist, without cracks, with clear shapes, and the different "components" of the stool are adhered to each other;

[0197] 3.5 points: the stool is wet and begins to lose its shape and crack, and the "components" of the stool separate and the cracks are visible;

[0198] 4 points: the feces have clearly visible shapes and cracks, and only a small amount remains on the ground when the feces is picked up;

[0199] 4.5 points: the feces has clearly visible cracks, is extremely dry on the outside and relatively dry on the inside, and there is no residue on the ground when it is picked up;

[0200] 5 points: hard, dry and friable stool (lumpy) that cracks easily.

[0201] ③Total cholesterol concentration (TC): TC concentration was determined using an ELISA kit.

[0202] ④ Creatine kinase isoenzyme MB (CK-MB): CK-MB concentration was determined using an ELISA kit.

[0203] ⑤ Atrial natriuretic peptide (ANP): ANP concentration was determined using an ELISA kit.

[0204] (3) Test results:

[0205] Application Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Feed intake (daily / bird) 297 280 283 291 288 Fecal score (points) 3.6 4.3 3.1 4.2 4.2 TC(mmol / L) 3.54 9.28 6.87 5.43 5.82 CK-MB(U / L) 14.78 29.34 20.50 19.89 20.17 ANP (pg / mL) 50.37 63.27 57.32 55.29 55.51

[0206] In addition, the above method was also applied to the elderly dog ​​food prepared in Example 2-11, and the results were similar to those in Example 1.

[0207] In summary, the composition of the present application has a positive effect on the cardiovascular health of pets, can enhance cardiovascular function, promote blood circulation, is nutritionally balanced and is easy to digest and absorb.

[0208] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A composition for improving cardiovascular function, characterized in that: The composition comprises the following components by weight: 20 to 30 parts of plant extract, 100 to 250 parts of fruit powder, 100 to 250 parts of vegetable powder, and 60 to 200 parts of enzymatic fresh chicken powder; The plant extract comprises milk thistle extract, hawthorn extract and angelica extract, and the weight ratio of the milk thistle extract, hawthorn extract and angelica extract is 1:(2-3):(0.3-0.5).

2. The composition for improving cardiovascular function according to claim 1, characterized in that: The weight ratio of the milk thistle extract, the hawthorn extract and the angelica extract is 1:2.5:0.

4.

3. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The preparation method of the milk thistle extract is: The milk thistle is cleaned to remove surface impurities, dried and crushed to obtain milk thistle powder; Add milk thistle powder to 5-6 times the amount of 50-60% ethanol solution and soak at 30-40°C for 10-12 hours, extract twice in total, and combine the extracts; The milk thistle extract is obtained by filtering, concentrating, purifying, drying and crushing.

4. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The preparation method of the hawthorn extract is: The hawthorn is washed to remove surface impurities, dried and crushed to obtain hawthorn powder; Add hawthorn powder to 6-7 times the amount of water and soak at 50-60°C for 3-4 hours; Heat to 98-100°C and boil for 2-3 hours, stirring at 80-120 rpm; Add water to 6-7 times the amount, maintain 98-100℃, and continue to boil for 2-3 hours, stirring at 80-120rpm; Add water to 3-4 times the amount, maintain 98-100℃, and continue to boil for 1-2 hours, stirring at 60-80rpm; The mixture is filtered, concentrated, dried and crushed to obtain a hawthorn extract.

5. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The preparation method of the angelica extract is: The angelica sinensis is washed to remove surface impurities, dried and then crushed to obtain angelica sinensis powder; Add angelica powder to 8 to 10 times the amount of 60 to 70% ethanol solution and soak at a temperature of 30 to 40°C for 30 to 40 minutes; Ultrasonic extraction was performed at a frequency of 55 to 60 kHz for 40 to 50 min; Filter and remove solid impurities to obtain an extract, which is then concentrated, dried, and crushed to obtain an angelica extract.

6. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The preparation method of the enzymatically hydrolyzed fresh chicken powder is as follows: Take fresh chicken breast, wash and remove impurities, mince, add appropriate amount of water and adjust the pH to 6.0-6.5, heat to 55-60℃ and keep for 20-30min; Add 0.2-0.4% (by weight) of papain to the raw material, and perform enzymolysis at 55-60° C. for 4-6 hours; Heat to 90-92°C and maintain for 10-20 minutes; Filter, concentrate, dry and crush to obtain enzymatically hydrolyzed fresh chicken powder.

7. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The fruit powder comprises the following components by weight: 10 to 20 parts of kiwi fruit powder, 10 to 15 parts of raspberry powder, and 8 to 18 parts of apple powder.

8. The composition for improving cardiovascular function according to claim 1 or 2, characterized in that: The vegetable powder comprises the following components by weight: 10 to 20 parts of broccoli, 8 to 20 parts of kale, 10 to 15 parts of spinach, and 5 to 10 parts of konjac flour.

9. The method for preparing the composition for improving cardiovascular function according to any one of claims 1 to 8, characterized in that: The following steps are involved: Prepare milk thistle extract, hawthorn extract and angelica extract respectively, and mix them according to weight ratio to obtain plant extract; Prepare enzymatic fresh chicken powder, add fruit powder and vegetable powder and stir to mix; Add the plant extract and continue to mix to obtain the composition for improving cardiovascular function.

10. Use of the composition for improving cardiovascular function according to any one of claims 1 to 8 in preparing food for elderly dogs, characterized in that: The added amount of the composition for improving cardiovascular function is 1-2% (by weight).