阅读说明：本技术 一种荞麦羹配方 (Buckwheat soup formula ) 是由 朱雪梅 邵继荣 王成龙 张洪 李志强 李汉邯 王恺弋 赵佳雨 于 2021-04-27 设计创作，主要内容包括：本发明涉及一种荞麦羹,涉及食品领域,本发明对四川省中医药名家张国医开具的食药同源汉方进行改善,以保证相关的荞麦羮具有优良的食品感官特性,荞麦羹的主要成分为苦荞麦和山楂；但仅有苦荞麦和山楂制备的荞麦羹风味、口感不佳,本发明先加入红枣中和山楂的酸味,确定红枣的配比；根据所欠缺的黏稠度和糖度,分别加入魔芋粉改善所述荞麦羹的粘稠度,加入木糖醇提升所述荞麦羹的糖度,确定所述魔芋粉和所述木糖醇的配比；通过加入糙米粉改善所述荞麦羹的口感及质感,确定所述糙米粉的配比；加入芝麻中和苦荞味,确定所述荞麦羹中所述芝麻的配比；最后以正交实验确定各口味的最终配方。(The invention relates to a buckwheat thick soup, which relates to the field of food, and improves the food-medicine homologous Chinese prescription which is prescribed by famous nationalities of traditional Chinese medicine in Sichuan province so as to ensure that related buckwheat thick soup has excellent food sensory characteristics, wherein the main components of the buckwheat thick soup are tartary buckwheat and hawthorn; however, the buckwheat soup prepared from only tartary buckwheat and hawthorn has poor flavor and taste, and the red dates are added to neutralize the sour taste of the hawthorn, so that the proportion of the red dates is determined; according to the lacked viscosity and sugar degree, respectively adding konjac flour to improve the viscosity of the buckwheat thick soup, adding xylitol to improve the sugar degree of the buckwheat thick soup, and determining the proportion of the konjac flour to the xylitol; the taste and texture of the buckwheat thick soup are improved by adding brown rice powder, and the proportion of the brown rice powder is determined; adding sesame to neutralize the buckwheat flavor, and determining the proportion of the sesame in the buckwheat soup; finally, the final formula of each taste is determined by orthogonal experiments.)

1. The buckwheat thick soup is characterized by comprising the following components: tartary buckwheat, hawthorn, red date, konjac flour, brown rice flour, xylitol, salt and sesame.

2. The buckwheat thick soup according to claim 1, comprising the following components in parts by mass: 29.9 to 38.4 percent of tartary buckwheat, 10.0 to 12.8 percent of hawthorn, 12.8 to 29.9 percent of red date, 1.3 to 10.2 percent of konjac flour, 9.3 to 16.8 percent of brown rice flour, 1.3 to 10.2 percent of sesame, 5.7 to 11.4 percent of xylitol and 0.3 percent of salt.

3. The buckwheat thick soup according to claim 1, comprising the following components in parts by mass: 36.1% of tartary buckwheat, 12.0% of hawthorn, 18.1% of red date, 6.0% of konjac flour, 9.0% of brown rice flour, 8.4% of sesame, 10.0% of xylitol and 0.3% of salt.

4. The buckwheat thick soup according to claim 1, wherein: the brown rice flour is prepared by aging germinated brown rice, germinated red rice and germinated black rice, mixing and pulverizing at a ratio of 1:1: 1.

5. The buckwheat thick soup according to any one of claims 1 to 3, wherein the development of the buckwheat thick soup is carried out by the following technical route:

s1: determining the proportion of the buckwheat soup raw materials;

s2: pretreating the buckwheat soup raw material;

s3: mixing and crushing the buckwheat soup raw materials;

s4: obtaining the buckwheat soup forming product.

6. The buckwheat thick soup according to claim 5, wherein the step S2 comprises the steps of:

s21: performing an experiment on the ratio of the tartary buckwheat and the hawthorns in the buckwheat soup, and obtaining the optimal ratio of the tartary buckwheat and the hawthorns through sensory evaluation;

s22: carrying out single-factor experiment on the ratio of the red dates in the buckwheat thick soup, and obtaining the optimal ratio of the red dates through sensory evaluation;

s23: performing single-factor experiment on the ratio of the sesame in the buckwheat thick soup, and obtaining the optimal ratio of the sesame through sensory evaluation;

s24: carrying out a single-factor experiment on the proportion of the brown rice powder in the buckwheat soup, and obtaining the optimal proportion of the brown rice powder through sensory evaluation;

s25: carrying out single-factor experiment on the proportion of the konjac flour in the buckwheat thick soup, and obtaining the optimal proportion of the konjac flour through sensory evaluation;

s26: performing a single-factor experiment on the ratio of the xylitol in the buckwheat thick soup, and obtaining the optimal ratio of the xylitol through sensory evaluation;

s27: performing orthogonal experiments on the influencing factors in the steps S21-S25 to obtain the optimal ratio of the raw materials of the buckwheat thick soup through sensory evaluation.

7. The buckwheat thick soup according to claim 6, wherein: sensory evaluation was performed on the buckwheat soup-shaped product obtained in the step S4.

8. The buckwheat thick soup according to claim 7, wherein the sensory evaluation step is:

s51: under the light of sunlight or incandescent light, 5g of the buckwheat thick soup molded product to be detected is placed on parchment paper, the color and the tissue state of the buckwheat thick soup molded product are observed, and the buckwheat thick soup molded product is scored on a sensory evaluation table according to sensory evaluation standards;

s52: measuring 100mL of distilled water at the temperature of 50-55 ℃, putting the distilled water into a 200mL beaker, weighing 13.6g of buckwheat soup molded product, pouring the product into the beaker, and starting a stopwatch to start timing; recording the sinking duration of the buckwheat thick soup forming product after the buckwheat thick soup on the water surface sinks completely, obtaining the sunk buckwheat thick soup, and scoring on a sensory evaluation table according to sensory scoring standards;

s53: uniformly stirring the sunk buckwheat soup along the container wall by using a plastic spoon at a speed of 2r/s for 40-50 s, observing the wall hanging condition of the stirred buckwheat soup molded product on the container wall, and grading on a sensory evaluation table according to a sensory evaluation standard;

s54: taking 2ml of the buckwheat soup molded product processed in the step S53, pouring the buckwheat soup molded product into a black plastic tray, and observing the distribution condition of small white spots; finally, observing the bottom condition of the container, and scoring on a sensory evaluation table according to sensory evaluation standards;

s55: gargling with clear water, smelling the smell of the buckwheat thick soup by using a nose, and finally drinking 5ml of the buckwheat thick soup molded product treated in the step S53, and scoring on a sensory evaluation table;

s56: and (5) counting the scores of the steps S51-S55 to obtain sensory evaluation tables of all experimental groups, and comparing and analyzing to obtain the optimal ratio of the buckwheat soup.

9. The buckwheat thick soup according to claim 7, wherein the sensory rating scale is divided into four items of taste and smell, reconstitution property, texture state and color.

Technical Field

The invention relates to the field of food, in particular to buckwheat soup.

Background

According to the statistics of the Ministry of health of China, at present, the number of hypertension patients exceeds 1 hundred million, hyperglycemia (diabetes) patients exceeds 6000 million, hyperlipidemia patients exceeds 5000 million, and the number of hypertension, hyperlipidemia and hypertension patients is nearly 2 hundred million. Coronary heart disease, cerebral apoplexy, cerebral thrombosis, diabetes, nephrotic syndrome and the like caused by hypertension, hyperglycemia and hyperlipidemia seriously threaten the health and life of people, the morbidity of the hypertension, hyperlipidemia and hyperglycemia accounts for 52 percent at present, the mortality rate is up to 30 percent, and the hypertension, hyperlipidemia and hyperglycemia is one of the main risk factors threatening the health and life of people.

Tartary buckwheat belongs to dicotyledonous plants of the Polygonaceae family, is known as tartary buckwheat (F.tataricum), and has a slightly bitter taste. China is a large planting country of tartary buckwheat, the annual planting area and the annual yield are the first in the world, and the tartary buckwheat is mainly produced in southwest mountainous areas, the Yi nationality of Liangshan province in Sichuan province, Gansu Dingxi and other areas. The tartary buckwheat has a long planting history and good medicinal value, and is recorded on a plurality of ancient books. Modern clinical medical research and observation shows that the tartary buckwheat has the functions of reducing blood sugar, reducing blood fat and improving immunity. It can be used for the adjuvant treatment of diabetes, hypertension, coronary heart disease, and apoplexy. Therefore, the development of the tartary buckwheat series instant food has good practical significance for preventing three-high diseases, expanding the application of tartary buckwheat and promoting the development of tartary buckwheat industry.

The basic formula of an edible and medicinal homologous formula of a famous householder and persevered spider herb of Sichuan traditional Chinese medicine is tartary buckwheat: 3, hawthorn: 1, the two materials are mixed and crushed, the crushed materials are sieved by a 60-mesh sieve, and then the crushed materials are taken with warm boiled water, so that the effects of food health care and health preservation regulation are achieved, but the hawthorn has strong sour taste, and the characteristics of the starch content and the starch particles of the tartary buckwheat have rough mouthfeel, so that the sensory property of the product is extremely poor, the sensory property of the product is poor, the product is not easy to be loved by consumers, and the good sensory property of the food is not provided.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides the buckwheat thick soup, which improves the flavor and the taste of the prior buckwheat thick soup and ensures the sensory characteristics of food.

The purpose of the invention is realized by the following technical scheme: the buckwheat thick soup comprises the following components in parts by mass: 29.9 to 38.4 percent of tartary buckwheat, 10.0 to 12.8 percent of hawthorn, 12.8 to 29.9 percent of red date, 1.3 to 10.2 percent of konjac flour, 6.2 to 16.8 percent of brown rice flour, 1.3 to 10.2 percent of sesame, 5.7 to 11.4 percent of xylitol and 0.3 percent of salt; the buckwheat thick soup prepared by using the tartary buckwheat and the hawthorn as raw materials has stronger tartary buckwheat taste and is also deficient in the aspects of acidity, sugar degree, viscosity, mouthfeel and the like.

Firstly, preparing basic buckwheat thick soup by using tartary buckwheat and hawthorn as raw materials, and according to the defects of the basic buckwheat thick soup in aspects of acidity, sugar degree, viscosity, mouthfeel and the like, improving the mouthfeel and flavor of the tartary buckwheat thick soup by using red dates, brown rice flour, xylitol, konjaku flour and sesame, and determining the proportion of the red dates, the brown rice flour, the konjaku flour and the sesame and the addition of the xylitol; the brown rice flour is prepared by aging germinated brown rice, germinated red rice and germinated black rice, mixing and pulverizing at a ratio of 1:1: 1.

As a further improvement of the invention, the other components are kept unchanged, the jujube is added into the buckwheat thick soup for experiment, the sourness of the hawthorn in the basic buckwheat thick soup is neutralized under the condition of not adding a sweetening agent, and the optimal proportion of the jujube for neutralizing the sourness is determined by sensory evaluation, so that the optimal proportion of the jujube is 18.1%.

As a further improvement of the invention, the other components are kept unchanged, xylitol is added into the buckwheat thick soup for experiment, the sugar degree of the buckwheat thick soup is improved, the optimal xylitol addition is determined through sensory evaluation, and the optimal proportion of the xylitol is 10.0 percent.

As a further improvement of the invention, sesame is added into the buckwheat soup to carry out an experiment to neutralize the buckwheat flavor of the buckwheat in the buckwheat soup, and the optimal sesame ratio of the sesame for neutralizing the buckwheat flavor is determined by sensory evaluation, so that the optimal sesame ratio is 8.4%.

As a further improvement of the invention, the other components are kept unchanged, the konjak powder is added into the buckwheat thick soup to carry out a single-factor variable experiment, the viscosity of the buckwheat thick soup is improved, and the optimal ratio of the konjak powder is determined through sensory evaluation, so that the optimal ratio of the konjak powder is 6.0%.

As a further improvement of the invention, the coarse rice powder is added into the buckwheat soup for experiment to improve the taste of the buckwheat soup, and the optimal proportion of the coarse rice powder is determined by sensory evaluation to obtain the optimal proportion of 9.0 percent of the coarse rice powder.

After the formula of the buckwheat thick soup is determined through an experiment, a 3-level 5-factor orthogonal experiment is carried out on five factors including red date, sesame, brown rice powder, konjac flour and xylitol, the buckwheat thick soup obtained through the experiment is subjected to sensory evaluation, and the optimal buckwheat thick soup proportion is obtained through variance analysis, so that the purpose of improving the flavor and the taste of the buckwheat thick soup is achieved.

The sensory evaluation method is based on GB-RHB203-2004 as a reference, and comprises the following steps:

s51: under the light of sunlight or incandescent light, 5g of the buckwheat thick soup molded product to be detected is placed on parchment paper, the color and the tissue state of the buckwheat thick soup molded product are observed, and the buckwheat thick soup molded product is scored on a sensory evaluation table according to sensory evaluation standards;

s52: measuring 100mL of distilled water at the temperature of 50-55 ℃, putting the distilled water into a 200mL beaker, weighing 13.6g of buckwheat soup molded product, pouring the product into the beaker, and starting a stopwatch to start timing; recording the sinking duration of the buckwheat thick soup forming product after the buckwheat thick soup on the water surface sinks completely, obtaining the sunk buckwheat thick soup, and scoring on a sensory evaluation table according to sensory scoring standards;

s53: uniformly stirring the sunk buckwheat soup along the container wall by using a plastic spoon at a speed of 2r/s for 40-50 s, observing the wall hanging condition of the stirred buckwheat soup molded product on the container wall, and grading on a sensory evaluation table according to a sensory evaluation standard;

s54: taking 2ml of the buckwheat soup molded product processed in the step S53, pouring the buckwheat soup molded product into a black plastic tray, and observing the distribution condition of small white spots; finally, observing the bottom condition of the container, and scoring on a sensory evaluation table according to sensory evaluation standards;

s55: gargling with clear water, smelling the smell of the buckwheat thick soup by using a nose, and finally drinking 5ml of the buckwheat thick soup molded product treated in the step S53, and scoring on a sensory evaluation table;

s56: and (5) counting the scores of the steps S51-S55 to obtain sensory evaluation tables of all experimental groups, and comparing and analyzing to obtain the optimal ratio of the buckwheat soup.

In the sensory evaluation of the orthogonal experiment, the adhesion force of the buckwheat thick soup is detected, the wall hanging condition is detected to detect whether the components in the buckwheat thick soup are uniformly mixed, and after the sensory evaluation of the orthogonal experiment, the optimal buckwheat thick soup formula is obtained, wherein the optimal buckwheat thick soup is prepared from the following raw materials in parts by weight: hawthorn fruit: red dates: sesame: konjak flour: brown rice powder: xylitol: common salt 36.1%: 12.0%: 18.1%: 8.4%: 6.0%: 9.0%: 10.0%: 0.3 percent, the optimal buckwheat thick soup formula can realize uniform and glossy color and luster in the aspect of color and luster; in the aspect of tissue state, the material has good fluidity and uniform particles; in the aspect of reconstitution, the sinking time is long, the content of the lumps is small, the shape after dissolution is pasty, and the viscosity is good; in the aspects of taste and smell, the flavor has better natural smell, the taste has good flavor, the texture is fine and smooth, the taste is sour, sweet and delicious, the aftertaste is sweet, and the aims of improving the flavor and the mouthfeel of the existing buckwheat soup and ensuring the sensory characteristics of food are fulfilled.

The invention has the following advantages: the method improves the strong buckwheat taste, acidity, sugar degree, viscosity and mouthfeel of the existing buckwheat thick soup, and obtains the buckwheat thick soup with good mouthfeel and flavor, and the buckwheat thick soup has the following characteristics in color and luster: the color is uniform and glossy; in terms of organization: the particles are slightly larger, are not loose, have a small amount of agglomeration and have better fluidity; in the aspect of the reconstitution property: the sinking time is more than 30S, 1-5 lumps appear at the bottom of the container, the shape is pasty, and the viscosity is good; in terms of taste and smell: has better natural smell, good flavor, exquisite texture, sweet and sour taste, sweet aftertaste and better overall sensory evaluation result.

Drawings

FIG. 1: sensory evaluation is carried out under different addition amounts of the red dates;

FIG. 2: sensory scores under different xylitol addition amounts;

FIG. 3: sensory evaluation under different sesame adding amounts;

FIG. 4: sensory evaluation is carried out under different addition amounts of the konjac flour;

FIG. 5: sensory rating at different levels of brown rice flour addition

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.

Examples

Sensory evaluation method and standard of buckwheat soup

The buckwheat thick soup comprises the following components: the composition comprises the following components in percentage by mass: 29.9-38.4% of tartary buckwheat, 10.0-12.8% of hawthorn, 12.8-29.9% of red date, 1.3-10.2% of konjac flour, 6.2-16.8% of coarse rice powder, 1.3-10.2% of sesame, 5.7-11.4% of xylitol and 0.3% of salt, wherein the coarse rice powder is prepared by mixing and crushing germinated brown rice, germinated red rice and germinated black rice according to the ratio of 1:1:1 after curing, and the raw materials are shown in table 1.

Table 1: raw material table

Numbering	Name (R)	Suppliers of goods
			1	Tartary buckwheat	Sichuan colorful Liangshan buckwheat factory
2	Haw	Dried third-generation hawthorn (purchased from Beijing Dong)
			3	Chinese yam	New Entang mountain tablet (purchased from Beijing east)
4	Sesame seed	October rice white sesame seed (purchased from Jingdong)
			5	Konjak powder	Ming' an Xu purified konjaku flour (purchased from Beijing east)
6	Germinated brown rice	SICHUAN QIANGJIN AOLIN FOOD BEVERAGE Co.,Ltd.
			7	Germinated black rice	SICHUAN QIANGJIN AOLIN FOOD BEVERAGE Co.,Ltd.
8	Germinated red rice	SICHUAN QIANGJIN AOLIN FOOD BEVERAGE Co.,Ltd.
			9	Salt	Self-tribute well salt (refined salt with iodine)

Randomly selecting 10 professionals to form an assessment group, and evaluating the sensory quality of the buckwheat porridge under natural light by taking GB-RHB203-2004 as a reference when the temperature of the product is constant with the room temperature; the method comprises the following specific steps:

s51: under the light of sunlight or incandescent light, 5g of the buckwheat thick soup molded product to be detected is placed on parchment paper, the color and the tissue state of the buckwheat thick soup molded product are observed, and the buckwheat thick soup molded product is scored on a sensory evaluation table according to sensory evaluation standards;

s52: measuring 100mL of distilled water at the temperature of 50-55 ℃, putting the distilled water into a 200mL beaker, weighing 13.6g of buckwheat soup molded product, pouring the product into the beaker, and starting a stopwatch to start timing; recording the sinking duration of the buckwheat thick soup forming product after the powder of the buckwheat thick soup on the water surface sinks completely, obtaining the sunk buckwheat thick soup, and grading on a sensory evaluation table according to sensory grading standards;

s53: uniformly stirring the sunk buckwheat soup along the container wall by using a plastic spoon at a speed of 2r/s for 40-50 s, observing the wall hanging condition of the stirred buckwheat soup molded product on the container wall, and grading on a sensory evaluation table according to a sensory evaluation standard;

s54: taking 2ml of the buckwheat soup molded product processed in the step S53, pouring the buckwheat soup molded product into a black plastic tray, and observing the distribution condition of small white spots; finally, observing the bottom condition of the container, and scoring on a sensory evaluation table according to sensory evaluation standards;

s55: gargling with clear water, smelling the smell of the buckwheat thick soup by using a nose, and finally drinking 5ml of the buckwheat thick soup molded product treated in the step S53, and scoring on a sensory evaluation table;

s56: and (5) counting the scores of the steps S51-S55 to obtain sensory evaluation tables of all experimental groups, and comparing and analyzing to obtain the optimal ratio of the buckwheat soup.

Table 2: sensory evaluation criteria of buckwheat soup

Table 3: sensory evaluation table

Blank group control

The buckwheat soup is prepared from tartary buckwheat and hawthorn, wherein the proportion of the tartary buckwheat to the hawthorn is 75% and 25%, and sensory evaluation is carried out on the buckwheat soup, and the sensory evaluation is divided into 55 points.

Experimental design and result analysis of buckwheat soup ratio

(1) Red date proportioning experiment of buckwheat soup

The buckwheat thick soup is prepared from tartary buckwheat, hawthorn, red dates, sesame, konjac flour, brown rice flour, xylitol and salt, wherein the proportion of tartary buckwheat to hawthorn is 36.1% and 12.0%, in order to better determine the optimal proportion of the product, the red dates are firstly used as variables, the sensory characteristics of the buckwheat thick soup product are researched when the proportion of red dates is 12.8%, 18.1%, 22.4%, 26.4% and 29.9%, the experimental result is shown in figure 1, and the variance analysis of sensory evaluation is shown in table 4.

Table 4: ANOVA OF SENSORY EVALUATION OF HOT-Jujubae MIXING EXPERIMENTS

Source of variation	Sum of squares	Degree of freedom	Mean square	Joint hypothesis testing F
					Between groups	38.28	4	9.57	3.64
In group	118.3	45	2.629	/
					Total of	156.58	49	/	/

As can be seen from the analysis of variance in the sensory evaluation of the red date proportioning test in table 4, the significance difference is P ═ 0.012, i.e. different red date addition amounts have significance differences (P <0.05) on the quality of the buckwheat thick soup, as can be seen from the sensory score in fig. 1, when the red date ratio is 18.1%, the sensory score of the buckwheat thick soup is the highest; however, when the addition amount of the red dates is too much, the sensory score of the red dates is reduced, and the flavor of the red dates covers the flavor of the buckwheat, so that the buckwheat character of the product is weakened, and the score is reduced; therefore, the addition amount of the red dates is the optimal proportion when the addition amount of the red dates is 18.1%.

(2) Experiment on adding ratio of buckwheat soup xylitol

Under the determined condition of the ratio of the upper group of red dates, the ratios of other raw materials are kept unchanged, the sensory characteristics of the optimal xylitol ratio of the product under the condition that the adding amount percentage of the xylitol is 5.7%, 7.1%, 8.6%, 10.0% and 11.4% are researched, the experimental result is shown in a figure 2, and the variance analysis of the sensory scores of the buckwheat soup xylitol adding ratio experiment is shown in a table 5.

Table 5: variance analysis of sensory scores of buckwheat soup xylitol addition ratio experiment

Source of variation	Sum of squares	Degree of freedom	Mean square	Joint hypothesis testing F
					Between groups	128.88	4	32.22	7.021
In group	206.5	45	4.589	/
					Total of	335.38	49	/	/

As can be seen from the analysis of variance of sensory scores of the buckwheat soup xylitol addition ratio experiments in table 5, the significance difference is that P is 0.000, that is, the addition amount of different xylitol has significance difference on the quality influence of buckwheat soup (P is less than 0.05); as can be seen from the sensory scores of FIG. 2, the sensory score of the buckwheat soup increased as the addition amount of xylitol increased, reaching a maximum value at the addition amount of 10.0%. When the xylitol addition was increased again thereafter, the sensory score tended to decrease. Therefore, when the addition amount of xylitol is 10.0%, the sensory properties of the product are optimal.

(3) Sesame proportioning experiment of buckwheat soup

Under the condition of the mixture ratio of the two formulas (1) and (2), the mixture ratio of other raw materials is kept unchanged, the sensory characteristics of the optimal sesame mixture ratio of the buckwheat thick soup product under the condition that the addition amount of the sesame is 1.3%, 3.7%, 6.0%, 8.4% and 10.2% are researched, the experimental result is shown in a figure 3, and the variance analysis of the sensory score of the sesame mixture ratio experiment of the buckwheat thick soup is shown in a table 6.

TABLE 6 analysis of variance of sensory scores of sesame matching experiments of buckwheat thick soup

Source of variation	Sum of squares	Degree of freedom	Mean square	Joint hypothesis testing F
					Between groups	57.28	4	14.32	3.273
In group	196.9	45	4.376	/
					Total of	254.18	49	/	/

The significance difference of the variance analysis of the sesame formula shown in table 6 is that P is 0.019, namely, the quality influence of different sesame addition amounts on buckwheat soup is significantly different (P is less than 0.05). As can be seen from the sensory score table in fig. 3, the overall sensory score increases with the increase of sesame, but there is a clear descending trend after that, but the descending trend is less than the ascending trend; from the sensory characteristics of the buckwheat thick soup, the sensory flavor of the product is obviously improved after the sesame is added, but as the adding amount of the sesame is increased, the sesame flavor is too strong, so that the sensory score tends to be reduced, but the difference is not large, so that the sensory score is optimal when the adding ratio of the sesame is 8.4%.

(4) Konjak flour proportioning experiment of buckwheat soup

Under the condition of the mixture ratio of the three formulas (1), (2) and (3), the mixture ratio of other raw materials is kept unchanged, the sensory characteristics of the optimal mixture ratio of the konjac flour of the product under the condition that the adding amount of the konjac flour is 1.2%, 3.6%, 6.0%, 7.9% and 10.0% are researched, the experimental result is shown in a figure 4, and the variance analysis of the sensory score of the konjac flour mixture ratio experiment of the buckwheat soup is shown in a table 7.

Table 7: variance analysis of sensory scores of buckwheat soup konjak flour proportioning test

The significance difference was 0.000, i.e., different sesame additions had significant difference in sensory score of buckwheat thick soup (P <0.05), as determined by the analysis of variance of the konjac flour additions in table 7. As can be seen from the sensory score in fig. 4, the sensory score increases first and then decreases, and after the konjac flour is added, the viscosity of the product is obviously improved, but the overall taste is decreased due to the fact that the viscosity of the product is too high along with the increase of the addition amount of the konjac flour, so that the addition amount of the konjac flour is not too large easily, and the flavor of the product is reduced; the konjac powder has the best sensory score when the adding amount is 6.0%.

(5) Coarse rice powder proportioning experiment of buckwheat soup

Under the condition of the mixture ratio of the four previous formulas, the mixture ratio of other raw materials is kept unchanged, the sensory characteristics of the optimal mixture ratio of the brown rice powder of the product under the conditions that the addition amount of the brown rice powder is 6.2%, 9.0%, 11.7%, 14.1% and 16.4% are researched, the experimental result is shown in a figure 5, and the variance analysis of the sensory score of the brown rice powder mixture ratio experiment of the buckwheat soup is shown in a table 8.

Table 8: variance analysis of sensory scores of buckwheat thick soup brown rice powder proportioning experiment

Source of variation	Sum of squares	Degree of freedom	Mean square	Joint hypothesis testing F
					Between groups	83.880	4	20.970	14.233
In group	66.300	45	1.473	/
					Total of	150.180	49	/	/

The significance difference of the variance analysis of the different adding amounts of the brown rice powder in table 8 is that P is 0.000, namely, the adding amounts of the different brown rice powder have significance difference (P <0.05) on the sensory score of the buckwheat soup. As can be seen from the sensory score of fig. 5, as brown rice flour is added, the whole reconstitution property and aroma are improved, and the sensory score is increased and then decreased, so that the addition of brown rice flour is not too much, otherwise, the buckwheat flavor is affected, and therefore, the whole sensory score is optimal when the optimal addition ratio of brown rice flour is 9.0%.

Example 4 Quadrature experiments with different ratios of buckwheat soup stock material

According to the 5-component experiment of example 3, 5 factors of red date, sesame, xylitol, konjac flour and brown rice flour were subjected to 3-level 5-factor orthogonal experiment, the experimental design conditions are shown in the following table 9, and the analysis of variance of the orthogonal experiment is shown in the following table 10.

Table 9: results of orthogonal experiments on sesame formulations

The K value in table 9 is the sum of sensory scores for that factor at a certain level, e.g. K1 in the first column indicates the sum of sensory scores at the first level (1.5) of the formula for the red date factor; the k value is a sensory average value at the corresponding level, and the greatest difference between the calculated differences R and k2 and k3 in the first column and the remaining columns indicates the greatest influence of the factor on the orthogonal test (i.e., the greatest influence on the sensory score when the factor level changes), so that the selection should be prioritized for each factor. By orthogonal experiments on sesame-flavored buckwheat thick soup, as shown in table 9, it was found by range analysis that: the influence degrees of the five factors on the sensory evaluation of the buckwheat thick soup are sequentially from large to small: b > C > A > D > E, i.e.: sesame has the greatest range R, is a key factor and has the greatest influence on sensory evaluation, the addition amount of konjac flour is the next, the addition amount of red dates is the next, the addition amount of brown rice flour is the next, and the influence on the addition amount of xylitol is the smallest. Thus, by observation: the optimum levels are a3 and B3 and C2 and D2 and E1, so the best combination is: the addition ratio of the red dates is 26.4%, the addition ratio of the sesame is 7.9%, the addition ratio of the konjac flour is 6%, the addition ratio of the brown rice flour is 9%, and the addition ratio of the xylitol is 8.6%, and the group of experiments cannot appear in an orthogonal table, so that the sensory scoring experiment is carried out on the new formula, the sensory scoring result is 75 points, and compared with the previous result, the score of the highest formula in the orthogonal table is not high, so that the variance analysis should be carried out on the orthogonal experiment result, and the optimal formula is determined.

Table 10: analysis of variance for orthogonal experiments

As shown in table 10, the results of the variance analysis of the sensory evaluation of the buckwheat thick soup show that the significance of red dates is 0.306, the significance of sesame is 0.160, the significance of konjac flour is 0.209, the significance of xylitol is 0.209, the significance of brown rice flour is 0.661, and the P values of the five factors are all greater than 0.05, so that the sensory score has no significant difference, and the experimental result has no statistical significance, and the primary and secondary sequences of the factors are sesame, konjac flour, red date and brown rice xylitol, so that the higher the sensory score is, the better the product properties are. Therefore, the overall optimal formula is tartary buckwheat: hawthorn fruit: red dates: sesame: konjak flour: brown rice powder: xylitol: common salt 36.1%: 12.0%: 18.1%: 8.4%: 6.0%: 9.0%: 10.0%: 0.3 percent.

In summary, the following steps: the buckwheat soup is prepared from the following raw materials: hawthorn fruit: red dates: sesame: konjak flour: brown rice powder: xylitol: common salt 36.1%: 12.0%: 18.1%: 8.4%: 6.0%: 9.0%: 10.0%: 0.3 percent.