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A kind of preparation technology of jujube concentrated juice

A production process and concentrated juice technology, which is applied in the field of production technology of red jujube concentrated juice, can solve the problems of inability to exert the use value of red dates, less production and popularization of jujube juice, short shelf life of jujube juice, etc., and achieves low cost and qualified physical and chemical indicators. , the effect of convenient operation

Active Publication Date: 2020-10-02
GREEN JUICE IND TIANJIN
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Problems solved by technology

[0018] At present, the utilization of jujube is mainly to process the jujube itself, such as making various jujube products. The production and popularization of jujube juice is less, and the shelf life of the jujube juice produced is short and cannot be stored for a long time, which makes the jujube more popular. Value cannot be realized

Method used

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  • A kind of preparation technology of jujube concentrated juice

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Embodiment

[0049] (1) Selection of red jujube varieties: the preferred Xinjiang jujube of the present invention requires dried jujube moisture content to be less than 30%, fresh and plump, free from damage by diseases and insects and mechanical injuries, and qualified high-quality dried dates of pesticide residues and heavy metals.

[0050] (2) Cleaning and selection: After the raw materials are accepted, they are put into the first-level cleaning pool, and rough cleaning is carried out to remove dust and pesticide residues on the surface of red dates; sodium hypochlorite. Finally, go through the surf fruit washing pool for final cleaning. The cleaned jujubes are sorted by a manual sorting table to remove branches, leaves and other foreign objects.

[0051] (3) Crushing and beating: After the dried jujubes are cleaned, they are crushed into 1-3mm sizes by adding water through a crusher. Then go through the pitting and beating machine to remove the jujube pits.

[0052] (4) Precooking ...

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Abstract

The invention provides a process for making concentrated red jujube juice. The process comprises the following steps: selecting, pulping, pre-cooking, filtering, performing enzymolysis, clarifying, performing ultrafiltration, concentrating, sterilizing and the like, thereby obtaining the uniform and thick concentrated red jujube juice. The concentrated red jujube juice is brownish red to medium brown, has due flavor of red jujubes and is odorless, moderate in sourness and sweetness and pure in taste; any visible impurity is not seen under normal visual acuity, and any mildew is avoided; and according to the process, chitosan is adopted for precipitating, secondary diatomite filtration and secondary ultrafiltration are performed, the turbidity of the finished product is reduced, the light transmittance is improved, secondary turbidity of the concentrated red jujube juice is avoided, and the aim of prolonging the quality guarantee period of the product is achieved.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing, and in particular relates to a production process of concentrated jujube juice. Background technique [0002] Jujube, also known as jujube, dried jujube, jujube, etc., belongs to the plant of Angiosperm, Dicotyledon, Rhamnoles, Rhamnaceae, and Jujube. It originated in China and has a planting history of more than 8,000 years in China. It has been listed as one of the "five fruits" (chestnut, peach, plum, apricot, and jujube) since ancient times. According to the survey and statistics of the editorial committee of (Chinese Fruit Tree Records Jujube Roll), so far, there are more than 700 varieties of jujube trees in the country, including 224 dried varieties, 261 fresh food varieties, and 56 candied jujube varieties. There are 159 varieties, and there are also a few ornamental varieties such as Longzhao jujube, Tailihong, and teapot jujube. [0003] Jujube contains a lot o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L2/02A23L2/70A23L2/80A23L2/74A23L2/82A23L2/52A23L2/42A23L2/46
Inventor 欧尔智苏慧娜赵斌
Owner GREEN JUICE IND TIANJIN
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