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A kind of probiotic-rich freeze-dried carrot diced product and preparation method thereof

A technology of diced carrots and rich probiotics, which is applied in the fields of food preservation, protection of fruits/vegetables with protective layers, food science, etc., can solve the problems of less research on the application of beneficial bacteria biofilms

Active Publication Date: 2022-07-29
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Current research mainly focuses on the biofilm control of pathogenic bacteria, while there are few studies on the application of beneficial bacteria biofilm

Method used

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  • A kind of probiotic-rich freeze-dried carrot diced product and preparation method thereof
  • A kind of probiotic-rich freeze-dried carrot diced product and preparation method thereof
  • A kind of probiotic-rich freeze-dried carrot diced product and preparation method thereof

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Embodiment Construction

[0027] (1) The following examples can better understand the present invention, but do not limit the present invention in any way.

[0028] (1) raw material preparation: remove the phloem of carrot, select the cambium and xylem of carrot, wash, cut into cubes, put into sterile cold water immediately after blanching for 90s, take out and drain after cooling;

[0029] (2) Preparation of probiotic dipping solution: Take a ring of freeze-dried or slanted Lactobacillus plantarum, connect it to the corresponding liquid medium, activate it in a 37°C incubator for 24 hours, and remove 1 mL of it into a new 5 mL liquid medium , activated under the same conditions for 12h, and then received 10% of the liquid medium and cultivated until the bacterial content of the bacterial liquid was 10%. 7-9 When CFU / mL, centrifuge, remove the supernatant, and dilute the bacterial paste with the same volume of commercially available pure juice to a bacterial content of 10 7-9 CFU / mL, get the dipping s...

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Abstract

The invention discloses a probiotic-rich freeze-dried carrot diced product and a preparation method thereof, belonging to the technical field of agricultural product processing. According to the interface properties of carrots and the surface physicochemical properties of biofilms formed by specific probiotics, the present invention selects the cambium and xylem of carrots as product raw materials, and adopts a vacuum impregnation combined biofilm method to enrich the probiotics into carrots, which is more efficient than existing ones. The bacterial count of the technically prepared product is increased by more than 10 times, including the following steps: preparation of carrot raw material, preparation of probiotic dipping solution, vacuum dipping, biofilm formation, vacuum freeze drying and nitrogen-filled packaging. The number of viable bacteria in the prepared probiotic-rich freeze-dried carrot diced product can be maintained at 25 ° C for 10 7 CFU / g above 120 days. The probiotic-rich carrot product prepared by the invention integrates the health-care function of probiotics and the nutritional function of carrot, is a snack food with health-care function, greatly increases the added value of the carrot product, and has broad market prospects.

Description

1. Technical field [0001] The invention relates to a probiotic-rich freeze-dried carrot diced product and a preparation method thereof, belonging to the technical field of agricultural product processing. 2. Background technology [0002] Probiotics have a variety of probiotic functions such as regulating intestinal flora, reducing lipids and protecting the liver, anti-tumor, anti-diabetes, etc., and have achieved industrial application. However, most of the products used are fermented dairy products, which have high cholesterol risks and people with lactose intolerance. There are two major defects of inability to consume, and it is urgent to launch new products to benefit more consumers. [0003] In "Process Optimization of Enriching Lactobacillus Plantarum in Carrot Slices", Cui Li et al. used vacuum dipping to enrich Lactobacillus plantarum into carrots, and the number of probiotics could reach 1.2×10. 10 CFU / g dry sample, but the article does not involve the use of biof...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L19/00A23L33/135A23B7/16A23B7/055
Inventor 崔莉宋江峰李大婧刘春泉牛丽影张钟元江宁刘春菊
Owner JIANGSU ACAD OF AGRI SCI
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