Method for producing ziziphus jujube slices by combining instantaneous ejection steam explosion with vacuum microwaves

A technology of vacuum microwave and gray jujube slices, which is applied in food preservation, fruit and vegetable preservation, food drying, etc., can solve the problems of poor taste, light flavor, and difficult dissolution of soluble components, and achieve golden color, rich jujube aroma, and taste and dissolution performance enhancement

Inactive Publication Date: 2021-03-09
JINAN INST OF FRUIT PRODS CHINA GENERAL SUPPLY & MARKETING COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of the existing jujube slices products such as weak flavor, poor taste, and difficult dissolution of soluble components, the present invention provides a method for producing jujube slices by instantaneous catapult steam explosion combined with vacuum microwave

Method used

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  • Method for producing ziziphus jujube slices by combining instantaneous ejection steam explosion with vacuum microwaves

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Effect test

Embodiment 1

[0032] A method for producing jujube slices by instantaneous catapult steam explosion combined with vacuum microwave, the steps are as follows:

[0033] (1) Remove the core of Xinjiang gray jujube with a moisture content of 30%, cut into circular slices with a thickness of about 4mm; place the gray jujube slices in the blasting chamber of the instantaneous ejection steam explosion equipment, and the volume ratio of the material chamber is 2:4, The steam explosion pressure is 0.3MPa, and the steam pressure holding time is 10s.

[0034] (2) Take the ash jujube slices after steam explosion and place them in microwave vacuum drying equipment. The drying parameters are: microwave power 600w, vacuum degree 60kpa, drying time 3min, and material thickness 1cm.

[0035] (3) Take the ash jujube slices after microwave vacuum drying, lay flat on the hot air drying box material tray, the material thickness is 0.5cm, place in the hot air drying box, and dry under the hot air condition of 75...

Embodiment 2

[0037] A method for producing jujube slices by instantaneous catapult steam explosion combined with vacuum microwave, the steps are as follows:

[0038] (1) Remove the core of Xinjiang gray jujube with a moisture content of 25%, cut into circular slices with a thickness of about 3mm; place the gray jujube slices in the blasting chamber of the instantaneous ejection steam explosion equipment, and the volume ratio of the cavity is 3:4, The steam explosion pressure is 0.3MPa, and the steam pressure holding time is 15s.

[0039] (2) Take the ash jujube slices after steam explosion and place them in microwave vacuum drying equipment. The drying parameters are: microwave power 800w, vacuum degree 65kpa, drying time 2.5min, and material thickness 1cm.

[0040] (3) Take the ash jujube slices after microwave vacuum drying, lay flat on the hot-air drying box feed tray, material thickness 0.5cm, place in the hot-air drying box, and dry to below 7% moisture content under 70 ℃ of hot-air c...

Embodiment 3

[0042] A method for producing jujube slices by instantaneous catapult steam explosion combined with vacuum microwave, the steps are as follows:

[0043] (1) Remove the core of Xinjiang gray jujube with a moisture content of 35%, cut into circular slices with a thickness of about 3mm; place the gray jujube slices in the blasting cavity of the instantaneous ejection steam explosion equipment, and the volume ratio of the cavity is 3:4, The steam explosion pressure is 0.5MPa, and the steam pressure holding time is 10s.

[0044] (2) Take the ash jujube slices after steam explosion, and place them in microwave vacuum drying equipment. The drying parameters are: microwave power 600w, vacuum degree 65kpa, drying time 3.5min, and material thickness 1cm.

[0045] (3) Take the ash jujube slices after microwave vacuum drying, lay flat on the hot air drying box material tray, the material thickness is 0.5cm, place in the hot air drying box, and dry under the hot air condition of 75 ℃ until...

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Abstract

The invention relates to a method for producing ziziphus jujube slices by combining instantaneous ejection steam explosion with vacuum microwaves. The method comprises the following steps of carryingout instantaneous ejection steam explosion treatment on fresh ziziphus jujube slices under the conditions that the steam explosion pressure is 0.1-4MPa and the steam pressure maintaining time is 1-300s; carrying out vacuum microwave treatment on the ziziphus jujube slices subjected to instantaneous ejection steam explosion treatment; and performing hot air drying on the ziziphus jujube slices subjected to vacuum microwave treatment, and performing packaging and sterilization so as to obtain finished products. Instantaneous ejection steam explosion pretreatment and microwave vacuum drying are combined to produce the ziziphus jujube slices, release of aroma components of the ziziphus jujube slices is facilitated, Maillard reaction is promoted, and the ziziphus jujube aroma flavor of the product is remarkably enhanced. Meanwhile, the steam explosion treatment can improve the texture of the ziziphus jujube slices and improve the crispy taste of the product, so that the ziziphus jujube slices are more beneficial to dissolution of soluble substances in applications of soup cooking, tea drinking and the like.

Description

technical field [0001] The invention relates to a method for producing jujube slices by instantaneous catapult steam explosion combined with vacuum microwave, belonging to the technical field of food processing. Background technique [0002] Jujube is a traditional medicinal and edible fruit in my country. It has very high nutritional value. It is rich in carbohydrates, organic acids, vitamins, minerals and other nutrients. It is also rich in polysaccharides, flavonoids, polyphenols, etc. Bioactive ingredients, among which the content of vitamin C ranks first among all fruits and vegetables, known as "natural vitamin pills". my country is the world's largest jujube producer, with annual output accounting for more than 90% of the global total. In 2017, the output of jujube in my country reached 8.2405 million tons, a growth rate of 181% compared with 2007, and showed a continuous growth trend. [0003] Gray jujube (Zizyphus jujube cv.huizao), also known as Xinzheng gray juju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L5/30A23L5/10A23B7/02
CPCA23L19/03A23L5/30A23L5/34A23L5/13A23B7/0205A23V2002/00A23V2300/10
Inventor 张明马超吴茂玉宋烨孟晓峰王崇队杨立风范祺张博华
Owner JINAN INST OF FRUIT PRODS CHINA GENERAL SUPPLY & MARKETING COOP
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