Vacuum freeze drying method for flying fish roe

A technology of vacuum freeze-drying and flying fish roe, which is applied in meat/fish preservation, food preservation, food science, etc. It can solve the problems of complex desalination process, uncontrollable salinity, and loss of nutrients, so as to achieve high value and retain nutrients Composition, the effect of reducing transportation costs

Inactive Publication Date: 2012-08-15
厦门东海洋水产品有限公司 +1
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after adding a large amount of table salt, the desalination process is complicated, and t...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vacuum freeze drying method for flying fish roe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The present invention adopts the vacuum freeze-drying method to dehydrate the fresh flying fish roe caught into dry flying fish roe, and its technological process is as follows:

[0020] The freshly caught flying fish roe is cleaned of weeds, plastics and other polluting wastes, immediately washed with sea water and drained, and then put into the freezing room for ultra-low temperature (-40~-42°C) rapid freezing. The conditions for rapid freezing The method is: make the center temperature of the flying fish roe reach -18°C within 3 hours, and then leave the warehouse, enter the vacuum freeze-drying box and use the radiation type cold and heat exchange method for dehydration. The heat exchange temperature does not exceed 60°C, and the exchange temperature of the cold source is not low. At -30°C, the dehydration rate of the product reaches 75%, and the dried flying fish roe is obtained. After the dried fish roe is rehydrated and swelled, it is prepared with condiments and...

Embodiment 2

[0022] Similar to Example 1, the difference lies in the rapid freezing temperature of -42°C to -45°C, and the rapid freezing condition is: the central temperature of the flying fish roe reaches -20°C within 2.5 hours before being released from the warehouse.

Embodiment 3

[0024] Similar to Example 1, the difference lies in the rapid freezing temperature of -45 to -47°C, and the rapid freezing condition is: the central temperature of the flying fish roe reaches -22°C within 2.5 hours before being released from the warehouse.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a vacuum freeze drying method for flying fish roe, which relates to a freeze drying method for an aquatic product. The vacuum freeze drying method comprises the following steps of: pretreatment: washing and drying the flying fish roe after impurities on the flying fish roe are cleared, and entering a next step; freezing: delivering the dried flying fish roe into a ultra-low-temperature freezing room to be frozen rapidly, and entering a next step; and vacuum freeze drying: delivering the flying fish roe after being frozen into blocks into a vacuum freeze drying box to be dehydrated so as to acquire the flying fish roe after being vacuum freeze dried. The flying fish roe is dehydrated by a vacuum freeze drying machine through a radiation-type cold-heat exchanging method, the dehydrating rate reaches 75 percent, i.e. four tons of fresh products are dehydrated into one ton of dry products, so that the transportation cost and the storage expense can be greatly reduced, and the refreshing time can be prolonged from 5h to 2 years. When the flying fish roe is rehydrated two years later, original natural appearance shape of the flying fish roe can be maintained, granules are complete, original flavor is still reserved, and the rehydration rate can reach four times, i.e. one ton of dry products can be rehydrated to 4 tons of fresh products. According to the vacuum freeze drying method, not only is freshness maintained, but also the nutrients are reserved.

Description

technical field [0001] The invention relates to a freeze-drying method for aquatic products, in particular to a vacuum freeze-drying method for flying fish roe. Background technique [0002] In the world's oceans, there are nearly 100 species of flying fish, with an annual output of thousands of tons. Flying fish is a collective name for about 40 species of marine fish in the family Exocoetidae of the order Atheriniformes. There are 8 genera (Cheilopogon, Cypselurus Danichthys, Exocoetus, Fodiator, Hirundichthys, Oxyporhamphus, There are 50 species of flying fish of the genus Parexocoetus and the genus Prognichthys. There are 6 genera and 38 species recorded in China and its adjacent waters. The Taiwan Strait has the most, with an annual output of about 2,000 tons. From April to June every year (from late February to May in Hainan Island), flying fish roe is produced. Due to its high edible and medicinal value and delicious taste, flying fish roe is favored by consumers a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23B4/037
Inventor 张鹭勇曾华琳张鹭军林琼张育荣张鹭鹰王桂兰
Owner 厦门东海洋水产品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap