Selenium-rich wheat whole-sprout juice beverage and method for preparation thereof

1. A preparation method of selenium-enriched wheat whole bud seedling juice drink, comprising:

step 1: preparation of the selenium-enriched wheat whole bud seedling;

a. seed breeding: breeding a seed by means of characteristics of illumination and diurnal temperature difference; after collected, the seed is stored in an environment of 0-4° C.;

b. seed selection: removing impurities from the seed to eliminate seeds having damaged surfaces and wizened seeds so as to select clean and pollution-free wheat seeds;

c. seed soaking: soaking the selected wheat seeds in an organic selenium seed soaking solution; the organic selenium seed soaking solution comprises the following raw materials in parts by weight: 1000 parts of mineral water and 1-3 parts of organic chelating water-soluble selenium; wherein the water temperature and the time of seed soaking are set according to different seasons; the water temperature in winter is required to be 40-45° C.; and the seed soaking time is 10-13 hours in winter; 6-8 hours in summer and 9-11 hours in spring and autumn;

wherein during seed soaking, the seeds are washed daily twice in summer and once in other seasons;

d. sprouting: after being soaked, the seeds are sprouted; taking out the seeds of the organic selenium seed soaking solution, packing with clean ventilated cloth and placing at light position for sprouting; the seeds are required to be washed with a mineral water daily; then, soaking the seeds again in the organic selenium seed soaking solution; after being soaked for 1-12 hours, packing the seeds with the ventilated cloth; after 60% of the seeds sprout in 3-5 days, the seeds can be sowed;

wherein optimal sprouting temperature is 15-25° C.;

e. acceleration of the growth of seedlings: laying seedbed paper soaked with the organic selenium seed soaking solution on a seedling disk; after absorption, the seedbed paper is in a saturation state; uniformly scattering the sprouted wheat seeds on the seedbed paper; after the seeds are bred, placing the same seedling disk on the seeds or a piece of same seedbed paper wetted by spraying with a sprinkling can is covered on the seeds to maintain humidity; the seeds are required to be protected from light during acceleration of the growth of seedlings; meanwhile, ventilation of the seedling disk is required; during acceleration of the growth of seedlings, the sprouted seeds are uniformly sprayed with the mineral water daily at least once; spraying quantity shall be in such a manner that the seedbed paper at the bottom of the disk is wet without accumulated water; when buds of the wheat bud seedlings grow to 1 cm, the seedbed paper covered on the buds are removed to performing cultivation under exposure to light; the temperature is 15-30° C. during cultivation; on the next day after exposure to the light, spraying the wheat bud seedlings with an organic selenium spraying culture solution; the humidity of the seedbed paper is maintained; the organic selenium spraying culture solution comprises following raw materials in parts by weight: 1000 parts of mineral water and 0.5-2 parts of kappa-selenocarrageenan; then, the wheat bud seedlings are sprayed daily with mineral water;

wherein sowing density in acceleration of the growth of seedlings is: for 250 g of dry wheat seeds, 2-3 plastic disks of 25 cm×30 cm of seeds are sowed;

wherein during acceleration of the growth of seedlings, the sprouted seeds are uniformly wetted daily three to four times in summer and 1 to 2 times in winter;

f. collection: growth time of the wheat bud seedlings is controlled as 10-15 days; and wheat whole seedlings are collected when height of the seedlings is 10-12 cm to obtain the selenium-enriched wheat whole bud seedlings;

step 2: after being collected, washing mature selenium-enriched wheat whole bud seedlings with the mineral water for standby;

step 3: putting the selenium-enriched wheat whole bud seedlings, the mineral water and ginger slices into a juice extractor in proportion, and extracting time is 1-3 minutes;

wherein, the selenium-enriched wheat whole bud seedling juice drink, characterized by comprising following raw materials in parts by weight:

selenium-enriched wheat whole bud seedlings

60-120 parts; 

mineral water

250-1000 parts;  

ginger slices

5-15 parts;

wherein selenium content of the selenium-enriched wheat whole bud seedlings is: 0.15-0.25 mg/kg;

wherein the selenium content of the selenium-enriched wheat whole bud seedling juice is: 0.01-0.05 mg/L;

step 4: placing the selenium-enriched wheat whole bud seedling juice drink in an environment of 0-4° C. for storage.