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Method for producing jujube clarification juice
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A technology of jujube juice and clarified juice, which is applied in the production of jujube clarified juice and the field of producing jujube clarified juice by resin adsorption, to achieve the effects of increasing light transmittance, simple production process, and strong jujube fragrance
Inactive Publication Date: 2012-05-09
NORTHWEST UNIV
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Problems solved by technology
As far as the inventor knows, red date concentrated juice, especially clarified red date concentrated juice, has not been reported in patents and documents
Method used
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Embodiment 1
[0053] 1. Preparation of Jujube Syrup
[0054] Clean the red dates, add water 5 times the weight of the red dates, heat to 50°C in a sandwich pot, soak for 1 hour, then heat to 100°C, cook for 20 minutes, cool to 50°C, and beat in a beater to make Obtain jujube juice, the sieve aperture of beater is 1 millimeter.
[0055] 2. Enzyme hydrolysis
[0056] Put it in a sandwich pot, add 0.01% pectinase by weight of jujube juice, enzymatically hydrolyze it for 2 hours, then use a bag type juice extractor to squeeze the juice to obtain jujube juice with a solid content of 15%.
[0057] 3. Chitosan clarification
[0058] Jujube juice is placed in the jacketed pot, add the chitosan solution of jujube juice weight 3.0% (chitosan is dissolved with 1% citric acid solution to make 1% chitosan solution) under stirring state, 40 ℃ Insulated for 1 hour, when there is precipitation at the bottom of the sandwich pot, filter the juice with a 300-mesh sieve, then remove the particles in the juj...
Embodiment 2
[0069] 1. Preparation of Jujube Syrup
[0070] Clean the red dates, add water 3 times the weight of the red dates, heat to 50°C in a sandwich pot, soak for 1 hour, then heat to 100°C, cook for 20 minutes, cool to 50°C, and then beat in a beater to make Obtain jujube juice, the sieve aperture of beater is 1 millimeter.
[0071] 2. Enzyme hydrolysis
[0072] The jujube juice is placed in a sandwich pot, 0.05% of pectinase is added, enzymatically hydrolyzed for 2 hours, and then the jujube juice is squeezed with a bag type juice extractor to obtain the jujube juice with a solid content of 16%.
[0073] 3. Chitosan clarification
[0074] The jujube juice that step 2 is prepared is placed in the sandwich pot, adds the chitosan solution of jujube juice weight 6.0% (chitosan dissolves with 1% citric acid solution in advance, makes 1% chitosan solution), kept at 40°C for 1 hour, and when there was precipitation at the bottom of the jacketed pot, filter the juice with a 300-mesh sie...
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Abstract
The present invention discloses a method for producing jujube clarifying juice, including the jujube pulp preparation, the jujube pulp enzymatic hydrohysis liquid, the clarification of the enzymatic hydrohysis liquid and the ultra-filtration. Total phenols and proteins of the jujube juice obtained from the ultra-filtration are removed by macroporous adsorption resins. The macroporous adsorption resins can adopt LSA-800 and / or LX-400 adsorption resins. The polysaccharide content of the jujubes obtained through the method achieves above 40percent. Without toxic and harmful organic solvents contained, the whole extraction and separation process has the advantages of innocuity safety and little time consumption. And the whole course green extraction is realized.
Description
technical field [0001] The invention belongs to the field of food science and engineering, and in particular relates to a method for producing clarified jujube juice, in particular to a method for producing clarified jujube juice by adopting a resin adsorption method. Background technique [0002] Jujube, also known as jujube, is native to my country and belongs to the fruit of Rhamnaceae plants. It has a cultivation history of more than 3,000 years in my country. Jujube is rich in nutrients. In addition to protein, sugar, fatty acids, vitamins, and trace elements, it also contains flavonoids, betulinic acid, oleanolic acid, maslinic acid, catechin, p-coumaroyl ester, jujube Medicinal ingredients such as saponins I, II, III and jujuboside B have high medical and health care value. In my country, red dates have been used to treat diseases for a long time. As early as in "Shen Nong's Materia Medica", red dates were listed as top grade, which has the effect of invigorating qi ...
Claims
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Application Information
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