阅读说明：本技术 一种蜂蜜枇杷膏及其制备方法 (Honey loquat leaf extract and preparation method thereof ) 是由 柏文科 康树仁 王小斌 邹文亮 韩鼎 于 2021-07-07 设计创作，主要内容包括：本发明属于食品加工技术领域,公开了一种蜂蜜枇杷膏及其制备方法,蜂蜜枇杷膏的制备方法包括：将蜂蜜制成不同含水率的炼蜜后,将枇杷果粒加入并迅速搅拌,煮沸后中火煅煮至接近目标含水率,加入冰糖,转文火熬制即得所述蜂蜜枇杷膏。本发明以枇杷鲜果和炼蜜为主料做成蜂蜜枇杷膏食用,不但可以延长枇杷的食用期限,润肺止咳,有效缓解哮喘,清热去火,还可以补中益气,健脾健胃,提高免疫力,预防感冒。因此本发明是一种很好的药食同源工艺。本发明通过蜜炙法加工枇杷鲜果,不采用任何化学添加剂及防腐剂,操作简单,所制备的产品保持原始风味,且绿色健康。(The invention belongs to the technical field of food processing, and discloses honey loquat leaf extract and a preparation method thereof, wherein the preparation method of the honey loquat leaf extract comprises the following steps: preparing honey into refined honey with different water contents, adding the loquat fruit granules, rapidly stirring, calcining and boiling with medium fire until the water content is close to a target water content, adding rock sugar, and decocting with mild fire to obtain the honey loquat leaf extract. The invention takes fresh loquat fruits and refined honey as main materials to prepare the honey loquat cream for eating, which not only can prolong the edible period of the loquat, moisten the lung and relieve cough, effectively relieve asthma, clear heat and remove internal heat, but also can tonify the middle-jiao and Qi, strengthen the spleen and the stomach, improve immunity and prevent cold. Therefore, the invention is a good medicinal and edible process. The loquat fresh fruit is processed by a honey moxibustion method, no chemical additive or preservative is adopted, the operation is simple, and the prepared product keeps the original flavor and is green and healthy.)

1. The preparation method of the honey loquat leaf extract is characterized by comprising the following steps:

preparing honey into refined honey with different water contents according to needs, adding the loquat fruit grains, rapidly stirring, calcining and boiling with medium fire until the water content is close to a target water content, adding rock sugar, and decocting with mild fire to obtain the honey loquat leaf extract.

2. The method for preparing honey loquat leaf extract according to claim 1, wherein the method for preparing honey loquat leaf extract comprises the following steps:

firstly, carrying out loquat pretreatment; pouring honey into a pot, heating with medium fire and slow fire while stirring;

step two, after the honey is boiled, adjusting the fire, adding the pretreated loquat into the honey after the honey is dehydrated and turns color, and continuously stirring until the mixture of the honey and the loquat is boiled;

step three, after the mixture of the honey and the loquat is boiled, adjusting to be boiled for 1 hour by medium fire, and boiling for 2 hours again by mild fire;

step four, measuring the water content, adding the crushed rock candy powder in batches after the water content meets the preset standard, stirring and decocting with slow fire for a period of time;

and step five, cooling, packaging by using a high-temperature resistant glass bottle or a food grade plastic bottle, sealing, sterilizing, naturally cooling, and thus obtaining the honey loquat leaf extract.

3. The method for preparing honey loquat leaf extract according to claim 2, wherein in the first step, the loquat leaf pretreatment comprises:

(1) removing damaged fruits and rotten fruits of the loquats, rinsing dust on loquat peels with clear water, soaking the loquats in a sodium bicarbonate aqueous solution for 30 minutes, and then washing the loquats clean with clear water again;

(2) removing stems of the washed loquat fruits, draining water, and removing fruits and small fruits with poor maturity;

(3) cutting the loquat with dry surface with a cutter, removing residual calyx on the top, removing seeds and inner capsules of the loquat, and reserving pulp for later use;

(4) cutting or pulverizing loquat pulp into fruit granules with different sizes for later use.

4. A method for preparing honey loquat leaf extract as claimed in claim 3, wherein the concentration of the baking soda aqueous solution is 3%.

5. The method for preparing honey loquat leaf extract according to claim 2, wherein the step three, the adjusting to medium fire boiling for 1 hour, and the turning to slow fire boiling for 2 hours comprises: stirring was continued during the heating.

6. The method of claim 2, wherein the predetermined moisture content is 30%.

7. The method for preparing honey loquat leaf extract according to claim 2, wherein in the fourth step, the decoction time is 30 minutes.

8. A method of preparing honey loquat leaf extract as claimed in claim 2, wherein in the fifth step, the cooling comprises: cooling to 50-60 deg.C.

9. A honey loquat leaf extract prepared by the method of any one of claims 1 to 8.

10. The honey loquat leaf extract according to claim 9, wherein the honey loquat leaf extract comprises 5 to 8 parts by weight of fresh loquat flesh, 5 to 8 parts by weight of honey and 0.5 to 1 part by weight of crystal sugar.

Technical Field

The invention belongs to the technical field of food processing, and particularly relates to honey loquat leaf extract and a preparation method thereof.

Background

Currently, loquat is the fruit of plants of the genus Eriobotrya of the family Rosaceae. Loquats are widely distributed in Gansu, Shaanxi, Henan, Jiangsu, Anhui, Zhejiang, Jiangxi, Hubei, Hunan, Sichuan, Yunnan, Guizhou, Guangxi, Guangdong, Fujian, Taiwan and other places. The loquat is sweet and tender in meat, and is deeply popular with men and women, old and young. It is not only a kind of fruit, but also a kind of "medicinal fruit". The loquat usually blooms in autumn or early winter, the fruits mature from spring to early summer earlier than other fruits, and the process of inoculation is carried out in four seasons of spring, summer, autumn and winter. Therefore, the loquat is said to be the one with four unique qi in fruit and wood in Hua Jing. The traditional Chinese medicine practice proves that the cough relieving, phlegm reducing, heat clearing and lung moistening can be realized by eating the loquat. The honey is a natural nutrient product, gathers essence of nature, has the functions of moistening intestines, moistening lung and nourishing spleen and kidney, and has the effect of helping a plurality of traditional Chinese medicines.

A method for preparing preserved fruit of crystal sugar and loquat (CN201410220596.6) comprises peeling and removing core with sodium hydroxide, using calcium chloride and alum as pulp hardener, and repeatedly rinsing to cause loss of water soluble nutrients. The other preparation methods basically adopt crystal sugar, fresh honey or refined honey. Through the above analysis, the problems and defects of the prior art are as follows: repeatedly soaking the pulp in the preparation process to cause the loss of a large amount of nutrient substances and effective components; the preservative and the chemical additive are added, and the long-term or excessive eating of the food is harmful to human bodies; the product is only a snack food and does not have the characteristics of a functional food.

The difficulty in solving the above problems and defects is: 1. no chemical additive is used, so that the flavor and the storage period are easily influenced; 2. soaking in chemical preparation or clear water for a long time is beneficial for preventing browning after long-term standing and maintaining hardness, but is not beneficial for health; 3. excessive dependence on crystal sugar easily causes side effects such as osteoporosis, obesity, hyperchlorhydria and the like, and affects health.

The significance of solving the problems and the defects is as follows: 1. the shelf life is prolonged by decocting for a long time to proper sugar degree without chemical additives; 2. the surface decontamination treatment is only carried out before the loquat pulp is cut open, so that the loss of nutrient substances and effective components can not be caused; 3. the refined honey is used for replacing most of rock sugar, and is beneficial to health care and health preservation.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides honey loquat leaf extract and a preparation method thereof.

The invention is realized in such a way that the preparation method of the honey loquat leaf extract comprises the following steps:

preparing honey into refined honey with different water contents, adding the loquat fruit granules, rapidly stirring, calcining and boiling with medium fire until the water content is close to a target water content, adding rock sugar, and decocting with mild fire to obtain the honey loquat leaf extract.

Further, the preparation method of the honey loquat leaf extract comprises the following steps:

firstly, carrying out loquat pretreatment; pouring honey into a pot, heating with medium fire and slow fire while stirring;

step two, after the honey is boiled, adjusting the fire, adding the pretreated loquat into the honey after the honey is dehydrated and turns color, and continuously stirring until the mixture of the honey and the loquat is boiled;

step three, after the mixture of the honey and the loquat is boiled, adjusting to be boiled for 1 hour by medium fire, and boiling for 2 hours again by mild fire;

step four, measuring the water content, adding the crushed rock candy powder in batches after the water content meets the preset standard, stirring and decocting with slow fire for a period of time;

and step five, cooling, packaging by using a high-temperature resistant glass bottle or a food grade plastic bottle, sealing, sterilizing, naturally cooling, and thus obtaining the honey loquat leaf extract.

Further, in the first step, the loquat pretreatment comprises:

(1) removing damaged fruits and rotten fruits of the loquats, rinsing dust on loquat peels with clear water, soaking the loquats in a sodium bicarbonate aqueous solution for 30 minutes, and then washing the loquats clean with clear water again;

(2) removing stems of the washed loquat fruits, draining water, and removing fruits and small fruits with poor maturity;

(3) cutting the loquat with dry surface with a cutter, removing residual calyx on the top, removing seeds and inner capsules of the loquat, and reserving pulp for later use;

(4) cutting or pulverizing loquat pulp into fruit granules with different sizes for later use.

Further, the concentration of the sodium bicarbonate aqueous solution is 3%.

Further, in the third step, the adjusting to boiling with medium fire for 1 hour, and boiling with slow fire for 2 hours comprises: stirring was continued during the heating.

Further, the preset standard of the water content is 30%.

Further, in the fourth step, the decoction time is 30 minutes.

Further, in step five, the cooling includes: cooling to 50-60 deg.C.

The invention also aims to provide the honey loquat leaf extract prepared by the preparation method of the honey loquat leaf extract.

Further, the honey loquat leaf extract is composed of 5-8 parts of fresh loquat flesh, 5-8 parts of honey and 0.5-1 part of rock candy according to parts by weight.

By combining all the technical schemes, the invention has the advantages and positive effects that: the invention takes fresh loquat fruits and refined honey as main materials to prepare the honey loquat cream for eating, which not only can prolong the edible period of the loquat, moisten the lung and relieve cough, effectively relieve asthma, clear heat and remove internal heat, but also can tonify the middle-jiao and Qi, strengthen the spleen and the stomach, improve immunity and prevent cold. The process fills the technical blank in the industry, so the invention is a good medicinal and edible homologous process.

The loquat fresh fruit is processed by a honey moxibustion method, no chemical additive or preservative is adopted, the operation is simple, and the prepared product keeps the original flavor and is green and healthy.

The honey-fried loquat prepared by the invention is delicious and tasty by utilizing the principle that honey-fried loquat has the effects of relieving cough and asthma, tonifying spleen and qi, invigorating stomach and promoting digestion and the like and the effects of freeing lung and relieving cough, harmonizing stomach and depressing qi are superposed and amplified, and the loquat and the honey are used in cooperation, so that the honey-fried loquat has good effects on cough with lung heat, asthma and the like in winter and spring.

The invention almost completely adopts the traditional process, and does not apply any chemical preservative and additive, so that the loquat product has authentic mouthfeel and fragrant and thick honey taste.

The invention adopts the pulverized crystal sugar powder as the moisture regulator, saves energy, effectively prevents charring at the later stage of processing and effectively relieves bad aftertaste of the loquat.

The invention can be used for industrial production and household production.

(1) The honey and loquat provided by the invention have the dual functions of moistening lung, clearing heat from throat, invigorating stomach and promoting digestion. But also is beneficial to local materials and solves the problem of difficult selling of the dominant agricultural products.

(2) The traditional preserved rock candy loquat is only a snack food and does not have the function of health maintenance, so the invention is a medicine and food homologous process and fills the blank in the industry.

(3) And trial-producing 90 bottles at 26 days after 5 months in 2017, and storing the bottles in a fresh-keeping layer of a household refrigerator. After 12 months, 13 of 15 people think that the traditional Chinese medicine composition can effectively relieve symptoms such as pharyngitis, asthma and the like. And (3) reserving 10 bottles of trial-produced 90 bottles of samples for storage and observation, wherein 5 bottles of samples are stored in a refrigerator in a fresh-keeping mode, the other 5 bottles of samples are stored at normal temperature, and the taste and the microorganism content of the samples are not obviously different when the samples are detected by opening a sample label in 12 months in 2020.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a flow chart of a preparation method of honey loquat leaf extract provided by the embodiment of the invention.

Fig. 2 is a schematic view of loquat processing according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of refined honey provided by the embodiment of the invention.

Fig. 4 is a schematic diagram of honey moxibustion provided by the embodiment of the invention.

Fig. 5 is a graph showing the effect of the honey loquat leaf extract provided by the embodiment of the invention.

Fig. 6 is a second graph of the effect of the honey loquat leaf extract provided by the embodiment of the invention.

Fig. 7 is a third graph of the effect of the honey loquat leaf extract provided by the embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the invention provides honey loquat leaf extract and a preparation method thereof, and the invention is described in detail with reference to the accompanying drawings.

The preparation method of the honey loquat leaf extract provided by the embodiment of the invention comprises the following steps:

preparing honey into refined honey with different water contents, adding the loquat fruit granules, rapidly stirring, calcining and boiling with medium fire until the water content is close to a target water content, adding rock sugar, and decocting with mild fire to obtain the honey loquat leaf extract.

As shown in fig. 1, the preparation method of the honey loquat leaf extract provided by the embodiment of the invention comprises the following steps:

s101, performing loquat pretreatment; pouring honey into a pot, heating with medium fire and slow fire while stirring;

s102, after the honey is boiled, adjusting the fire, adding the pretreated loquat into the honey after the honey is dehydrated and turns color, and continuously stirring until the mixture of the honey and the loquat is boiled;

s103, after the honey and loquat mixture is boiled, adjusting to be boiled for 1 hour with medium fire, and turning to slow fire to be boiled for 2 hours;

s104, measuring the water content, adding the crushed rock candy powder in batches after the water content meets a preset standard, and decocting the rock candy powder for 30 minutes with slow fire while stirring;

and S105, cooling to 50-60 ℃, packaging by using a high-temperature resistant glass bottle or a food grade plastic bottle, sealing, sterilizing, naturally cooling, and thus obtaining the honey loquat leaf extract.

In step S101, the performing of loquat preprocessing according to the embodiment of the present invention includes:

(1) removing damaged fruits and rotten fruits of the loquats, rinsing dust on loquat peels with clear water, soaking the loquats in a 3% sodium bicarbonate aqueous solution for 30 minutes, and then washing the loquats with clear water again;

(2) removing stems of the washed loquat fruits, draining water, and removing fruits and small fruits with poor maturity;

(3) cutting the loquat with dry surface with a cutter, removing residual calyx on the top, removing seeds and inner capsules of the loquat, and reserving pulp for later use;

(4) cutting or pulverizing loquat pulp into fruit granules with different sizes for later use.

The method for adjusting boiling to be 1 hour with medium fire and boiling to be 2 hours with medium fire comprises the following steps: stirring was continued during the heating.

The preset standard of the water content provided by the embodiment of the invention is 30%.

The honey loquat leaf extract provided by the embodiment of the invention comprises 5-8 parts of fresh loquat flesh, 5-8 parts of honey and 0.5-1 part of rock candy in parts by weight.

The technical effects of the present invention will be further described with reference to specific embodiments.

Example 1:

the technical scheme of the invention is as follows: 5-8 parts of loquat clean pulp (fresh), 5-8 parts of honey (Chinese honey seal cover honey 5-6 parts, honey with high water content, 7-8 parts required) and 0.5-1 part of rock sugar. The preparation method comprises making Mel into refined Mel (tender Mel, medium Mel, and old Mel) with different water content as required, adding fructus Eriobotryae, stirring rapidly, calcining with medium fire until the water content is close to target water content, adding crystal sugar (pulverized into powder in advance for accelerated melting), and decocting with slow fire.

The method specifically comprises the following steps:

1. sorting and rinsing: firstly, picking and removing damaged fruits and rotten fruits, rinsing dust on peels with clear water, then soaking the peels with sodium bicarbonate mixed with water (the concentration is about 3%) for 30 minutes, and washing the peels clean with clear water to remove pesticide residues on the surfaces.

2. And (4) selecting. Removing the stems of the rinsed loquat fruits, draining and separating water, and selecting the fruits and small fruits with poor maturity.

3. And (6) cutting grains. Cutting the loquat with dry surface with a cutter, removing residual calyx on the top, removing the seed and inner capsule of the loquat, and keeping the pulp for later use.

4. And (5) cutting. According to different tastes, the loquat pulp is cut into fruit grains with different sizes for standby, or is crushed for standby.

5. Roasting with honey: pouring Mel into a pan, heating with middle fire and slow fire, and stirring while heating. After the mixture is boiled, controlling the fire power to prevent overflow, adding the loquat particles after the honey is dehydrated and turns color, and repeatedly stirring. After the mixture of the honey and the loquat is boiled, the mixture is adjusted to be boiled for 1 hour by medium fire, and is boiled for about 2 hours by mild fire, so that the evaporation of the water in the loquat pulp is ensured. The whole honey roasting process needs no intermittent stirring, so that the pan is prevented from being burnt, and the water discharge is promoted.

6. Measuring the water content, aiming at the end point water content being less than or equal to 30% based on the long-term storage requirement (the water content can not be strictly required by short-term eating in a family), obviously slowing the water evaporation when the water content is close to 30%, adding the crushed rock sugar powder in batches, decocting for 30 minutes with slow fire, and keeping constant stirring and mixing uniformly in the sugar adding process to prevent scorching.

7. Packaging: cooling to 50-60 deg.C, packaging with high temperature resistant glass bottle or edible plastic bottle, sealing, sterilizing, naturally cooling, and storing.

Example 2

Step 1: selecting materials: the loquat fruits with uniform fruit shape, orange yellow color and uniform maturity, and no rot or scar brown stain are selected, and in order to improve the processing efficiency, the thickness of the pulp of the denucleated loquat fruits is not less than 4 mm.

Step 2: cleaning: washing off dirt on the surface of the fruits by using clear water, and picking out unqualified fruits such as broken fruits, discolored fruits and the like.

Step 3: cutting and removing kernels: cutting the fruit into two halves with a stainless steel knife, removing the core, cutting off the calyx at two ends of the fruit with a fruit knife, removing the pulp, and tearing off the inner capsule to obtain the clean pulp of loquat.

Step 4: crushing: the pulp is cut to the desired particle size.

Step 5: roasting with honey: making Mel into refined Mel with water content of 13%, adding pulp, processing with Mel until the decoction is viscous, filling, sealing, sterilizing, and storing.

Example 3

Step 1: selecting materials: the loquat fruits with uniform fruit shape, orange yellow color, uniform maturity, no rot and no scar browning are selected.

Step 2: cleaning: washing off dirt on the surface of the fruits by using clear water, and picking out unqualified fruits such as broken fruits, discolored fruits and the like.

Step 3: cutting and removing kernels: cutting the fruit into two halves with a stainless steel knife, removing the core, cutting off the calyx at two ends of the fruit with a fruit knife, removing the pulp, and tearing off the inner capsule to obtain the clean pulp of loquat.

Step 4: crushing: the pulp is cut to the desired particle size.

Step 5: roasting with honey: preparing honey into reddish brown refined honey with water content of about 4%, adding pulp, frying with honey until the soup is viscous, adjusting water content to 30% with crystal sugar powder, filling, sealing, sterilizing and storing.

Example 4

Step 1: selecting materials: the loquat fruits with uniform fruit shape, orange yellow color and uniform maturity, and no rot or scar brown stain are selected, and in order to improve the processing efficiency, the thickness of the pulp of the denucleated loquat fruits is not less than 4 mm.

Step 2: cleaning: washing off dirt on the surface of the fruits by using clear water, and picking out unqualified fruits such as broken fruits, discolored fruits and the like.

Step 3: cutting and removing kernels: cutting the fruit into two halves with a stainless steel knife, removing the core, cutting off the calyx at two ends of the fruit with a fruit knife, removing the pulp, and tearing off the inner capsule to obtain the clean pulp of loquat.

Step 4: crushing: the pulp is cut to the desired particle size.

Step 5: roasting with honey: preparing Mel into refined Mel with water content of 13%, adding pulp Mel, adding Mel folium Eriobotryae extract, boiling, turning to middle fire until the decoction is viscous, adding crystal sugar powder, filling, sealing, and sterilizing.

In the present invention, fig. 2 is a schematic view of loquat processing according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of refined honey provided by the embodiment of the invention.

Fig. 4 is a schematic diagram of honey moxibustion provided by the embodiment of the invention.

Fig. 5 is a graph showing the effect of the honey loquat leaf extract provided by the embodiment of the invention.

Fig. 6 is a second graph of the effect of the honey loquat leaf extract provided by the embodiment of the invention.

Fig. 7 is a third graph of the effect of the honey loquat leaf extract provided by the embodiment of the invention.

The technical scheme of the invention is further explained by combining specific experiments.

[ contraindication ]: patients with diabetes, children under 3 years old and patients with obvious adverse reaction after eating should be administered with caution, and the dosage is preferably within 30ml per time.

[ invention effects ] the following: and trial-producing 90 bottles at 26 days after 5 months in 2017, and storing the bottles in a fresh-keeping layer of a household refrigerator. After 12 months, 13 of 15 people think that the traditional Chinese medicine composition can effectively relieve symptoms such as pharyngitis, asthma and the like. And (3) reserving 10 bottles of trial-produced 90 bottles of samples for storage and observation, wherein 5 bottles of samples are stored in a refrigerator in a fresh-keeping mode, the other 5 bottles of samples are stored at normal temperature, and the taste and the microorganism content of the samples are not obviously different when the samples are detected by opening a sample label in 12 months in 2020.

The technical effects of the present invention will be further described below in conjunction with pharmacology.

The invention preferably selects native honey, and Italian honey (commonly called as 'foreign honey') can be used for preparing refined honey under no condition. Native honey generally refers to the capping honey brewed by the Chinese bees, and the recorded "honey in compendium of materia medica" has five functions of medicine entry: clearing heat, tonifying middle energizer, removing toxicity, moistening dryness, and alleviating pain. All editions of pharmacopoeia consider that the honey has the effects of tonifying middle-jiao, moistening dryness, relieving pain and detoxifying; promoting tissue regeneration and healing wound for external use. The Chinese bee is also called as Chinese bee (different from Italian bee, also known as "foreign bee"), the Chinese bee collects wild flowers and brews to make native honey, and the plain has the reputation of "Bai Cao". Compared with single apis mellifera nectar, the nutrition of the apis mellifera is more comprehensive, and the most obvious effect is to enhance the immunity of the organism.

The fresh loquat fruits and the refined honey are used as main materials to be made into the honey loquat paste for eating, so that the edible period of the loquats can be prolonged, the lung can be moisturized to relieve cough, asthma can be effectively relieved, heat can be removed, internal heat can be removed, the middle-jiao and qi can be supplemented, the spleen and the stomach can be strengthened, the immunity can be improved, and the cold can be prevented. Therefore, the invention is a good medicinal and edible process.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.