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Selenium-enriched blueberry probiotic product and preparation method thereof

A raspberry probiotic and product technology, which is applied in the field of preparation of selenium-enriched blueberry probiotic products, can solve the problems of blueberry peel and blueberry seeds, oxidative destruction of water-soluble pigments, low utilization rate of blueberries, etc. safe effect

Inactive Publication Date: 2018-12-28
长沙湘资生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] At present, there are mainly three situations in blueberry products. One is simply adding it to various dairy products, mainly to use the water-soluble pigment in the blueberry fruit, which will cause problems with blueberry peel and blueberry seeds; the other is to use automatic extraction equipment to perform extraction functions. The third is to obtain various beverage products through fermentation and filtration directly as raw materials, which will cause a large amount of water-soluble pigments to be oxidized and destroyed in the process of microbial fermentation and growth, and the main functional components of blueberries will be lost too much. Big and other problems, the purpose of the present invention is to solve the deficiencies and defects of the prior art, to provide a kind of preparation method of blueberry probiotic product with high utilization rate and rich nutrition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare 100L of yeast medium, add 300g of sodium selenite and 400g of zinc oxide powder, inoculate 10L of baker’s yeast after high-temperature sterilization, aerobically ferment at 28°C for 3 days, and stand at 10°C for 1 hour to obtain clear liquid and 2.25kg of yeast Add 10L water to the yeast cells, then add 2000U neutral protease and 350g calcium chloride, keep warm at 35°C for 4h, then add 10kg of crushed blueberry fruit powder, stir for 50min, filter to obtain filtrate Ⅰ and pomace Ⅰ; After slag I was sterilized by high temperature, clear liquid (all) was added, fermented aerobically at 28°C for 36 hours, and filtered to obtain filtrate II; Mix and stir Ⅰ at 13°C for 3 hours, then add filtrate Ⅱ, mix well and store at 4°C.

Embodiment 2

[0035] Prepare 100L of yeast medium, add 350g of sodium selenite and 500g of zinc oxide powder, inoculate 10L of baker’s yeast after high-temperature sterilization, aerobically ferment at 28°C for 4 days, and stand at 10°C for 1.5h to obtain clear liquid and 2.41kg of yeast Thalline: add 10L water to the yeast thalline, then add 2500U neutral protease and 400g calcium chloride, keep warm at 40°C for 3h, then add 12kg of crushed blueberry fruit powder, stir for 40min, filter to obtain filtrate I and pomace I; Pomace Ⅰ was sterilized by high temperature and added clear liquid (all), 25-30 ℃ aerobic fermentation for 48 hours, filtered to obtain filtrate Ⅱ; after 130L of milk was sterilized by high temperature, 15L of lactic acid bacteria and 16L of bifidobacteria were added to ferment for 48h, Then mix and stir with filtrate Ⅰ at 12°C for 5 hours, then add filtrate Ⅱ, mix well and store at 4°C. Comparative Example 1

Embodiment 1

[0036] Prepare 100L of yeast medium, add 300g of sodium selenite and 400g of zinc oxide powder, inoculate 10L of baker’s yeast after high-temperature sterilization, aerobically ferment at 28°C for 3 days, add 10L of water and 10kg of crushed blueberry fruit powder, stir for 50min, and then Add 2000U of neutral protease and 350g of calcium chloride, keep warm at 35°C for 5 hours, and filter to obtain filtrate Ⅰ; after high-temperature sterilization of 100L of milk, add 10L of lactic acid bacteria and 10L of bifidobacteria to ferment for 36 hours, and then mix with filtrate Ⅰ at 13°C Stir for 3 hours, mix well and store at 4°C.

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PUM

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Abstract

The invention provides a preparation method of a selenium-enriched blueberry probiotic product. The preparation method includes the following specific steps: preparing a yeast culture medium, adding sodium selenite and zinc oxide powder, inoculating of baker yeast after high temperature sterilization, conducting aerobic fermentation at 25-30 DEG C for 2-4 days and standing for 1-2h at 10 DEG C toobtain a clear solution and yeast; adding water to the yeast, then adding neutral protease and calcium chloride, conducting thermal insulation at 30-40 DEG C for 3-4h, then adding crushed blueberry powder, stirring for 30-60min, conducting filtering to obtain filtrate I and pomace I, wherein the weight ratio of the yeast and the blueberry powder is 3-8:10; conducting high temperature sterilizationon the pomace, adding the pomace into the clear solution, conducting aerobic fermentation for 24-48h at 25-30 DEG C to obtain filtrate II; conducting high temperature sterilization on milk, adding lactic acid bacteria and bifidobacterium for fermentation for 24-48h, then mixing with the filtrate I at 10-15 DEG C for 3-6h, adding filtrate II, mixing uniformly and storing at 0-5 DEG C.

Description

technical field [0001] The invention relates to a preparation method of a selenium-enriched blueberry probiotic product, belonging to the technical field of food processing. Background technique [0002] Blueberry, also known as blueberry, belongs to the Rhododendronaceae Vaccinium plant. The fruit is blue. In addition to rich nutrients, it also contains anthocyanins, which can prevent brain neurasthenia, enhance heart function, improve eyesight and fight cancer. Therefore, it is listed as one of the five health foods for human beings by the International Food and Agriculture Organization. At present, suitable blueberry varieties have been planted on a large scale in Northeast my country, East China, Central China, and South China. The average weight of blueberry fruit is 0.5-2.5g, and the maximum weight is 5g. The edible rate is 100%. It is sweet and sour, and has a pleasant aroma. , for fresh food. Blueberry contains a variety of rich amino acids, trace elements, anthocya...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23C9/13A23C9/12
CPCA23C9/12A23C9/1307A23C9/1322
Inventor 向华
Owner 长沙湘资生物科技有限公司