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A kind of processing method of jujube grain

A processing method and technology of red dates, which are applied in the preservation of food ingredients as antimicrobials, grain processing, and food ingredients as viscosity modifiers, etc. The extraction method is simple, economical and practical, and the effect of reducing the adhesion force

Active Publication Date: 2019-10-25
RES INST OF AGRO PROD PROCESSING SHANXI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a new processing method and equipment for jujube granules aiming at the technical problems of low crushing pass rate, serious knife sticking and easy reproduction of microorganisms in the storage process in the current process of jujube granules

Method used

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  • A kind of processing method of jujube grain

Examples

Experimental program
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Effect test

Embodiment 1

[0022] (1) Preparation of anti-adhesive antibacterial solution Place cloves and ginkgo leaves in a drying oven at 60°C to dry until the moisture content is less than 10%, crush them through a 100-mesh sieve, then mix 50g each, add 1800ml of 70% ethanol under ultrasonic conditions The extraction time was 50min, the extraction temperature was 70°C, the power was 1000W, the stirring speed was 900r / min, the filtrate was obtained by vacuum filtration, and the filtrate was diluted with 70% ethanol until the flavonoid content reached 1.5mg / ml;

[0023] (2) Pretreatment Wash 1000 g of red dates, remove moldy and rotten fruits and impurities, and then remove the core;

[0024] (3) Soaking Take 500 g of pitted jujubes, soak them in 1000 g of water for 30 minutes, stop soaking when the water content reaches 20%, drain them, and then use step (1) to prepare an anti-sticking antibacterial solution, soak them for 15 minutes and drain them;

[0025] (4) Crush the red dates processed in step ...

Embodiment 2

[0030] (1) Preparation of anti-adhesive antibacterial solution Place cloves and ginkgo leaves in a 60°C drying oven to dry until the moisture content is less than 10%, crush them through a 100-mesh sieve, then mix 50g of each, add 2200ml of 80% ethanol in ultrasonic Under the conditions, the extraction time is 40min, the extraction temperature is 65°C, the power is 1000W, the stirring speed is 800r / min, the filtrate is obtained by vacuum filtration, and the filtrate is diluted with 80% ethanol until the flavonoid content reaches 2.0mg / ml;

[0031] (2) Pretreatment Wash 1000 g of red dates, remove moldy and rotten fruits and impurities, and then remove the core;

[0032] (3) Soaking Take 500 g of pitted jujube, soak in 1200 g of water for 30 minutes, stop soaking when the water content reaches 22%, and then use step (1) to prepare anti-sticking and antibacterial solution, soak for 10 minutes and then drain;

[0033] (4) Grinding: The red dates treated in step (3) are crushed wi...

Embodiment 3

[0038] (1) Preparation of anti-stick and antibacterial solution Place cloves and ginkgo leaves in a 60°C drying oven to dry until the moisture content is less than 10%, crush them through a 100-mesh sieve, then mix 50g each, add 2000ml 75% ethanol in ultrasonic Under the conditions, the extraction time is 45min, the extraction temperature is 68°C, the power is 1000W, the stirring speed is 850r / min, the filtrate is obtained by vacuum filtration, and the filtrate is diluted until the flavonoid content reaches 2.5mg / ml;

[0039] (2) Pretreatment Wash 1000 g of red dates, remove moldy and rotten fruits and impurities, and then remove the core;

[0040] (3) Soaking Take 500 g of pitted red dates, soak in 1100 g of clear water for 40 minutes, stop soaking when the water content reaches 25%, and then use step (1) to prepare anti-sticking and antibacterial solution, soak for 10 minutes and then drain;

[0041] (4) Crush the jujube processed in step (3) with a nitrogen-filled frequency...

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Abstract

The invention discloses a processing method of red date grains. The processing method of the red date grains comprises the following steps: preparing an anti-sticking antibacterial liquid, carrying out pre-treatments, carrying out soaking, carrying out grinding, carrying out grading, and carrying out drying. According to the processing method, the anti-sticking antibacterial liquid is adopted so as to reduce the cohesive force of the sugar in the red dates, so that shearing and crushing are facilitated, and bacteria and fungi are inhibited to a certain degree. A nitrogen-filled variable-frequency grinder is adopted, so that the contact points of the red dates with the blades can be maintained at an environment of 0-5 DEG C during the grinding processes, so that temperature rise of shear-type grinder is fundamentally suppressed, and automatic continuous low-temperature shearing is realized. Frequency control is adopted for controlling the rotate speed of the grinding machine, so that the frequency can be adjusted according to different raw materials, and the qualified rates of the grinded red date grains are thereby maximized. Vacuum microwave drying is adopted, so that the water contents in the red date grains can be rapidly reduced to lower than 15% after a short period of low-temperature drying; thus, re-bonding of the red date grains is avoided, and damages to the nutritional ingredients and browning of the red date grains are effectively inhibited.

Description

technical field [0001] The invention relates to the technical field of agricultural product processing, in particular to a processing method and equipment for jujube grains. Background technique [0002] Jujube has been cultivated in my country for 4,000 years. Jujube is a food that combines nutrition and health care. It is rich in sugar, protein, iron, calcium, phosphorus, vitamins, and 18 kinds of amino acids, including 8 kinds of essential amino acids. Contains some special biologically active substances such as flavonoids, saponins, cyclic adenosine monophosphate, cyclic guanosine monophosphate, triterpenoids, polysaccharides and alkaloids, etc. These nutrients determine that jujube fruit has a variety of health functions, such as protecting the liver , anti-oxidation, anti-aging, enhance the body's immunity, anti-cancer and anti-tumor, prevention and treatment of cardiovascular diseases, etc. [0003] Jujube grains are one of the main products of jujube processing. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L19/00A23L29/00A23B7/154B02C18/00
CPCA23B7/154A23V2002/00B02C18/00A23V2200/10A23V2200/244A23V2250/2116A23V2250/082
Inventor 张江宁杨春郭志利丁卫英杜亚军张玲许光映孟晶岩李云龙
Owner RES INST OF AGRO PROD PROCESSING SHANXI ACADEMY OF AGRI SCI
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