Concentrated red date juice and preparation method thereof

Abstract

The invention discloses a concentrated red date juice. The concentrated red date juice is prepared through the following steps of (1) cleaning and selecting; (2) cleaning again; (3) softening and cooling; (4) leaching; (5) removing kernels; (6) clarifying; (7) separating and sterilizing primarily; (8) performing ultrafiltration; (9) concentrating and sterilizing secondarily; and (10) performing sterile filling. The concentrated red date juice prepared by the method is red brown transparent liquid without deposits and suspended substances, additives and anticorrosive are not added during production and processing, and a method for low-temperature leaching and quick concentration is adopted, so that the concentrated red date juice has the characteristics that the inherent taste and aroma of red dates are kept, the content of soluble solids is high, transportation is facilitated, and the shelf life of the concentrated read data juice is prolonged.

Description

technical field

[0001] The invention relates to fruit juice, in particular to concentrated jujube juice and a preparation method thereof. Background technique

[0002] Jujubes are very nutritious. The fresh dates contain 20%-36% sugar, and the dried dates contain 55%-80% sugar. It has high calorie content and can be used as a food substitute. The vitamin C content of jujube ranks among the best among fruits, with a content of 0.1-0.6 grams per hectogram, which is about 100 times higher than that of apples and peaches. The content of vitamin P is also the crown of all fruits. People praise jujube as a "natural vitamin pill". ". Every 100 grams of fresh jujube contains 1.2 grams of protein, which is almost the crown of fresh fruits. Dried jujubes produce extremely high calories, about 1200-1300 kilojoules per 100 grams of jujubes, which is close to that of raisins, and the content of protein, calcium, phosphorus, riboflavin and niacin is higher than that of raisins. At the ...

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