Crisp Chinese dates and processing technology thereof

A technology of crisp jujube and processing method, which is applied in food ultrasonic treatment, food forming, food science, etc. It can solve the problems of broken products and high pressure difference, achieve fast dehydration speed, good crispness and color, and enhance palatability Effect

Inactive Publication Date: 2018-09-28
ZHONGXI TIANJIN JUJUBE TECH ENG CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent uses the pressure difference puffing process to make apple chips, and the pressure difference is 0.3MPa-0.4MPa. The pressure difference is relatively high, which is easy to cause the product to break

Method used

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  • Crisp Chinese dates and processing technology thereof

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Embodiment Construction

[0050] The present invention will be described in further detail below through specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention in turn.

[0051] A crisp jujube and a processing method thereof, the skin of the crisp jujube is green, and the specific preparation process is as follows:

[0052] This product adopts low-temperature quick-freezing, steam thawing, pressure difference puffing, and composite microcapsule coating, which increases the porosity of jujube flesh by 20%, crisp flesh, bright jujube skin, complete appearance, moderate sweet and sour, and rich nutrition.

[0053] raw material

[0054] 100-120 parts of fresh dates, 8-10 parts of compound microcapsules

[0055] ⑴Raw material selection

[0056] Select 100-120 parts of whole green fresh jujubes without insects, damage and cracks as raw materials.

[0057] ⑵Sterilization

[0058] Pick jujubes with uniform quality, was...

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Abstract

The invention relates to crisp Chinese dates and a processing method thereof. The method comprises the following steps: selecting whole green fresh Chinese dates which are free from insect damage, free from damage and free from crack as a raw material; performing disinfection, stoning, low-temperature fast-freezing, steam thawing and ultrasonic-assisted pressure-differential puffing; carrying outthe preparation of composite microcapsules; and conducting filing, packaging and sterilization to obtain a finished product. The method uses an ultrasonic-assisted pressure-differential puffing process, and utilizes the cavitation effect of ultrasonic, so that micro-gas-nucleus cavitation bubbles in the liquid rapidly grow and break down, and cell walls fracture so as to reduce pressure difference, and the optimal puffing effect can be achieved under the condition of small pressure difference. During the process of temperature rise and pressure rise, non-condensed gas nitrogen is used to dilute superheated steam so as to effectively avoid the problems such as uneven color and browning of the product caused by the superheated steam.

Description

technical field [0001] The invention belongs to the technical field of jujube deep processing, in particular to crisp jujube and its processing technology. Background technique [0002] Crispness and color are important indicators to measure the quality of crispy jujube. Improper pretreatment will result in incomplete shape and dark color of jujube, which will reduce the quality of the product. Freezing and thawing treatment in the pre-expansion treatment stage can well maintain the crispness and integrity of the product. [0003] Excessive temperature in variable temperature and pressure difference puffing will cause Maillard browning reaction of amino acids and reducing sugars in jujube raw materials, resulting in uneven color and weakened taste of the product. Excessive pressure can easily lead to the fragmentation of crisp chips, and ultrasonic assistance can effectively reduce the puffing pressure. [0004] The traditional production process of crispy jujube uses high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L5/00A23L5/30A23L33/16A23L33/21A23L33/15A23L33/175A23P30/32
CPCA23L19/05A23L5/00A23L5/32A23L33/15A23L33/16A23L33/175A23L33/21A23P30/32A23V2002/00A23V2200/30A23V2200/224A23V2250/5026A23V2250/2134A23V2250/5488A23V2250/5118A23V2250/1592A23V2250/1626A23V2250/5116A23V2250/70A23V2250/06A23V2250/5432A23V2250/5072A23V2250/1614A23V2250/1576A23V2250/032A23V2250/044A23V2250/18A23V2250/082A23V2300/20A23V2300/24A23V2300/48
Inventor 李喜宏杨莉杰杨维巧张宇峥朱刚张苹苹
Owner ZHONGXI TIANJIN JUJUBE TECH ENG CENT
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