阅读说明：本技术 一种重组大麦苗营养粉及其生产工艺 (Recombinant barley seedling nutrition powder and production process thereof ) 是由 张丽霞 王顺民 王一淳 潘健 于 2019-03-12 设计创作，主要内容包括：本发明公开了一种重组大麦苗营养粉及其生产工艺,利用微波-热风联合干燥技术干燥大麦嫩苗,综合了微波干燥穿透性强、效率高的优点,在保证干燥品质的前提下,实现干燥效率的显著提高,改善大麦嫩苗复水性、叶绿素保留率和色泽；将低温、惰性气体环境下的超微粉技术用于大麦苗粉,防止叶绿素等活性成分的氧化分解,使营养成分最大程度保留,同时采用超微粉技术使得富硒红米粉、桑葚籽的粉碎粒度更低,从而叶绿素、微量元素硒元素、花青素的利用率更高。制备的大麦苗营养粉口味清香、风味纯正、复水性好、营养与保健功能突出,具有降血糖和血脂、防止心血管疾病、防动脉硬化、防衰老、促进消化、排毒养颜等功效,使大麦苗更具营养保健价值和可口性。(The invention discloses a recombinant barley seedling nutrition powder and a production process thereof, wherein a microwave-hot air combined drying technology is used for drying barley seedlings, the advantages of strong penetrability and high efficiency of microwave drying are integrated, on the premise of ensuring the drying quality, the drying efficiency is obviously improved, and the rehydration property, chlorophyll retention rate and color of the barley seedlings are improved; the superfine powder technology under the low-temperature inert gas environment is used for barley seedling powder, oxidative decomposition of active ingredients such as chlorophyll is prevented, nutritional ingredients are reserved to the maximum extent, and meanwhile, the superfine powder technology is adopted, so that the crushing particle size of selenium-rich red rice powder and mulberry seeds is lower, and the utilization rate of chlorophyll, trace element selenium and anthocyanin is higher. The prepared barley seedling nutrition powder has fragrant taste, pure flavor, good rehydration property and outstanding nutrition and health care functions, has the effects of reducing blood sugar and blood fat, preventing cardiovascular diseases, preventing arteriosclerosis, preventing aging, promoting digestion, expelling toxin and beautifying, and the like, and has higher nutrition and health care value and palatability.)

1. A production process of recombinant barley seedling nutrition powder is characterized by comprising the following steps:

(1) selecting fresh barley young seedlings with the plant height of about 15-30 cm, firstly, spraying and cleaning the fresh barley young seedlings by flowing salt water, removing soil and impurities on the surface of the barley young seedlings, and then, carrying out ultrasonic cleaning;

(2) draining the barley seedlings cleaned in the step (1) by adopting a centrifuge to throw water or a screen, spreading the barley seedlings after the water is drained completely, slightly drying the barley seedlings, cutting the barley seedlings into sections, blanching and cooling the barley seedlings;

(3) carrying out microwave-hot air combined drying on the barley seedlings treated in the step (2), weighing the barley seedlings once every 2-4 hours in a drying stage, and drying until the water content is below 8.0%;

(4) selecting the dried and dehydrated barley seedlings in the step (3), carrying out magnetic sieving, carrying out gold X-ray detection, crushing by using a plant crusher, and carrying out superfine crushing in a low-temperature environment to obtain barley seedling powder;

(5) baking selenium-rich red rice, coarse pulverizing, and micronizing to obtain selenium-rich red rice powder;

(6) taking dried mulberry seeds, and carrying out coarse crushing and superfine crushing to obtain mulberry seed powder;

(7) and (3) uniformly mixing and stirring the barley seedling powder, the selenium-rich red rice powder and the mulberry seed powder which are respectively prepared in the steps (4), (5) and (6) according to the mass percentage of 80-85 percent to 11-15 percent and 4-5 percent, so as to obtain the recombined barley seedling nutrition powder.

2. The production process of the recombinant barley seedling nutrition powder according to claim 1, wherein in the step (1), the mass percentage concentration of the used salt solution is 0.5-0.7%; the frequency of ultrasonic cleaning is 5 KHZ-1 MHZ, and the sound intensity is 0.2-10W/cm²The time is 10-30 min.

3. The production process of the recombinant barley seedling nutrition powder according to claim 1, wherein in the step (2), the length of the cut segment is 3-6 cm; the blanching temperature is 95-100 ℃, the time is 1-2 min, and cold water is adopted for quick cooling after blanching.

4. The production process of the recombinant barley seedling nutrition powder according to claim 1, wherein in the step (3), the air inlet speed of the microwave-hot air combined drying is 5-55 m/s, the air inlet temperature is 40-90 ℃, and the microwave power is 200-900W.

5. The process for producing recombinant barley seedling nutrition powder according to claim 1, wherein in the step (4), the low temperature environment is a low temperature environment in which nitrogen is filled at-30 ℃.

6. The production process of the recombinant barley seedling nutrition powder as claimed in claim 1, wherein in the step (5), the selenium-rich red rice is baked by washing the selenium-rich red rice, draining and drying the washed selenium-rich red rice, putting the selenium-rich red rice into a pot, baking the selenium-rich red rice in stages, frying the selenium-rich red rice at 30-50 ℃ for 5-10 min, frying the selenium-rich red rice at 50-90 ℃ for 5-10 min, frying the selenium-rich red rice at 90-100 ℃ for 2-5 min, frying the selenium-rich red rice to be cooked, taking out and spreading for cooling to obtain the fried selenium-rich red rice.

7. The production process of the recombinant barley seedling nutrition powder according to claim 1, wherein the barley seedling powder, the selenium-rich red rice powder and the mulberry seed powder in the steps (4), (5) and (6) are subjected to superfine grinding, and the particle size is 400-700 meshes.

8. The recombinant barley seedling nutrition powder prepared by the production process of any one of claims 1 to 7.

Technical Field

The invention relates to recombinant barley seedling nutrition powder and a production process thereof, and belongs to the technical field of food processing.

Background

The barley seedlings are agricultural byproduct resources with high added value, are rich in various active substances such as potassium, calcium, magnesium, chlorophyll, carotene, superoxide dismutase and the like, can eliminate toxins accumulated in blood, and have good auxiliary curative effects on various diseases such as asthma, constipation and the like. When the barley seedlings grow to 20-30cm, various nutrient elements are most abundant, and 284.3 million tons of wheat leaf resources are available in Jiangsu province every year. At present, the main application of barley cultivation is wine brewing and feed preparation, and the area of barley leaves used for developing a barley byproduct is less than one percent of the total cultivation area. Therefore, the development of barley seedling products has great potential and market value.

The red rice belongs to colored rice in special rice, and the red rice has the functions of nourishing liver and kidney, contains more dietary fibers and enriching blood and tonifying qi because the skin of the red rice is red. The selenium-rich red rice is rich in selenium element, anthocyanin, vitamin C and cardiac glycoside which are deficient in the white brown rice. The Hubei Enshi and Changyang county are high-selenium zones in China, and the red rice cultivated in the region is selenium-rich red rice. The selenium-rich black tea in Changyang mountain has average selenium content of 5.8 μ g/100g, is a very safe selenium supplement product, has effects of reducing blood sugar and blood lipid, preventing cardiovascular diseases, preventing arteriosclerosis, and resisting aging, and is a natural antioxidant and green raw material of novel health products.

The traditional preparation method of the barley seedling powder has the smell of grass and has a rough taste, so that the drinking taste of the barley seedling powder is influenced. In addition, the traditional hot air drying process has no accurate control on the mixture ratio of the raw materials, and has problems in the processing process, so that the quality and the taste of the barley seedling powder are not good, the field of edible barley seedling health care products is not popularized, and how to improve the production process of the existing barley seedling powder makes the barley seedling powder have various nutritional ingredients and pure taste and flavor become a research hotspot. The barley seedling powder and related products are processed by taking fresh barley leaves as raw materials through a reasonable process, so that the nutritional ingredients of the barley seedlings are retained to the maximum extent, and the comprehensive utilization value of the barley seedlings is greatly improved.

Patent (application No. CN200810019303.2, publication No. CN101214013B) discloses a production process of dehydrated barley shoot powder, comprising the following steps: pretreating raw materials, vacuum freezing-hot air drying, pulverizing, sterilizing, and packaging. The production process adopts a cyclone crusher to crush to 180-200 meshes, so that the product is easy to shrink and harden, the rehydration of the product is poor, the taste is astringent, the components are single, and the commodity value and market consumption of the barley seedling powder are affected. The patent (application No. CN201210009433.4, publication No. CN102524678B) discloses a preparation method of barley seedling powder rich in resveratrol, which comprises the steps of pretreating raw materials, crushing, juicing, concentrating, spray-drying to obtain finished barley seedling powder, adding grape seed powder, stirring and the like. The loss of nutritional ingredients such as dietary fiber and the like is easily caused after juicing. The product has limited consumption population, and is not suitable for common consumers.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a recombinant barley seedling nutrition powder using barley seedlings, selenium-rich red rice and mulberry seeds as main raw materials aiming at the defects of the prior art, so as to solve the technical problems of bitter taste, single flavor and the like of the existing barley seedling powder product.

In order to solve the technical problems, the invention discloses a production process of recombinant barley seedling nutrition powder, which comprises the following steps:

(1) selecting fresh barley young seedlings with the plant height of about 15-30 cm, firstly, spraying and cleaning the fresh barley young seedlings by flowing salt water, removing soil and impurities on the surface of the barley young seedlings, and then, carrying out ultrasonic cleaning;

(2) draining the barley seedlings cleaned in the step (1) by adopting a centrifuge to throw water or a screen, spreading the barley seedlings after the water is drained completely, slightly drying the barley seedlings, cutting the barley seedlings into sections, blanching and cooling the barley seedlings;

(3) carrying out microwave-hot air combined drying on the barley seedlings treated in the step (2), weighing the barley seedlings once every 2-4 hours in a drying stage, and drying until the water content is below 8.0%;

(4) selecting the dried and dehydrated barley seedlings in the step (3), carrying out magnetic sieving, carrying out gold X-ray detection, crushing by using a plant crusher, and carrying out superfine crushing in a low-temperature environment to obtain barley seedling powder;

(5) baking selenium-rich red rice, coarse pulverizing, and micronizing to obtain selenium-rich red rice powder;

(6) taking dried mulberry seeds, and carrying out coarse crushing and superfine crushing to obtain mulberry seed powder;

(7) and (3) uniformly mixing and stirring the barley seedling powder, the selenium-rich red rice powder and the mulberry seed powder which are respectively prepared in the steps (4), (5) and (6) according to the mass percentage of 80-85 percent to 11-15 percent and 4-5 percent, so as to obtain the recombined barley seedling nutrition powder.

In the step (1), the mass percentage concentration of the salt solution is 0.5-0.7%, and part of microorganisms on the surfaces of the tender barley leaves can be killed by spraying the salt solution; the ultrasonic cleaning is to place the sorted barley seedlings in an ultrasonic generator, inject clear water into the ultrasonic generator, set the frequency to be 5 KHZ-1 MHZ and the sound intensity to be 0.2-10W/cm²The time is 10-30 min, and gravel and sodium chloride solution residues left in the previous working procedure, and pesticide and heavy metal ions on the surface are removed.

In the step (2), the length of the cut sections is 3-6 cm; the blanching temperature is 95-100 ℃, the time is 1-2 min, the temperature is rapidly reduced by adopting cold water showering after blanching, and the blanching function is to carry out color protection treatment on the barley seedling raw material.

In the step (3), the microwave-hot air combined drying is to install the treated barley seedlings on a conical sleeve screen of a microwave dryer, the air inlet speed is controlled to be 5-55 m/s, the air inlet temperature is controlled to be 40-90 ℃, and the microwave power is 200-900W.

Preferably, in the step (4), the low-temperature environment is a low-temperature environment filled with nitrogen at the temperature of below-30 ℃.

In the step (5), the selenium-rich red rice is baked, namely the selenium-rich red rice is washed, drained and dried, placed in a pot, baked in stages, fried at 30-50 ℃ for 5-10 min, then fried at 50-90 ℃ for 5-10 min, then fried at 90-100 ℃ for 2-5 min, fried to be fragrant, taken out and spread to cool, and the fried selenium-rich red rice is obtained.

Preferably, the barley seedling powder, the selenium-rich red rice powder and the mulberry seed powder in the steps (4), (5) and (6) are subjected to superfine grinding, and the particle size is 400-700 meshes.

The recombinant barley seedling nutrition powder prepared by the production process is also in the protection scope of the invention.

Has the advantages that:

1. according to the invention, barley grass, selenium-rich red rice and mulberry seeds are used as raw materials, a novel barley grass nutrition powder processing technology with high quality and low energy consumption and a product thereof are developed, the research and development of barley grass series products are promoted, and the research and development significance of the selenium-rich products is profound;

2. the method utilizes the microwave-hot air combined drying technology to dry the barley young seedlings, integrates the advantages of strong penetrability and high efficiency of microwave drying, realizes the remarkable improvement of the drying efficiency on the premise of ensuring the drying quality, improves the rehydration, the chlorophyll retention rate and the color and luster, and effectively reduces the production cost of enterprises;

3. the invention applies the ultra-micro powder technology under the low-temperature and inert gas environment to the barley seedling powder, prevents the oxidative decomposition of chlorophyll and other active ingredients, keeps the nutritional ingredients to the maximum extent, and simultaneously adopts the ultra-micro powder technology to ensure that the crushing granularity of selenium-rich red rice flour and mulberry seeds is lower, so that the utilization rate of chlorophyll, trace element selenium and anthocyanin is higher;

4. the barley seedling powder added in the raw materials of the invention contains rich soluble protein, free amino acid and vitamin, and rich potassium, calcium, magnesium, chlorophyll, superoxide dismutase and other active substances, thus forming various nutritional nourishing foods; the prepared barley seedling nutrition powder has fragrant taste, pure flavor, good rehydration property and outstanding nutrition and health care functions, and has the effects of reducing blood sugar and blood fat, preventing cardiovascular diseases, preventing arteriosclerosis, preventing aging, promoting digestion, expelling toxin and beautifying, and the like, so that the barley seedlings have higher nutrition and health care value and palatability.

Drawings

The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

FIG. 1 is an electron microscope scan of barley seedlings under different drying conditions; wherein, FIG. 1A adopts hot air drying (60 ℃); FIG. 1B shows a microwave-hot air combination (500W-60 ℃ C.).

Detailed Description

The invention will be better understood from the following examples.