Freeze drying method for aquatic products and freeze drying protecting agent
A technology of freeze-drying protective agent and drying method, which is applied in the field of aquatic product processing to achieve the effects of small changes in quality characteristics, reducing the loss of nutrients, and protecting the umami taste
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1-4
[0025] A kind of freeze-drying method of aquatic product, concrete steps are as follows:
[0026] 1) Pretreatment of aquatic products: wash and cut the aquatic products and remove the fat part, drain the water and add 8% freeze-drying protection agent A, after standing for 10-15 minutes, add 4% freeze-drying protection agent B , let stand for 5-20 minutes;
[0027] 2) Pre-freezing: Pre-freeze the pre-treated aquatic products at -25 to -30°C for 15-20 minutes;
[0028] 3) Vacuum freeze-drying: finally vacuum freeze-drying at a temperature of 28 Pa to 32 Pa and -35 to -45°C.
[0029] The lyoprotectant is composed of agent A and agent B, wherein agent A is bamboo vinegar solution, and agent B is a mixture of sucrose, trehalose, glycerin, mannitol and chitosan, and the specific ratio is shown in Table 1.
[0030] Table 1 Proportioning (g) of lyoprotectant B agent
[0031] Example
[0032] Mannitol
Embodiment 5
[0034] A kind of freeze-drying method of aquatic product, concrete steps are as follows:
[0035] 1) Pretreatment of aquatic products: wash and cut the aquatic products and remove the fat part, drain the water and add 5% freeze-drying protectant A, after standing for 10 minutes, add 2.5% freeze-drying protectant B, static Put 100 minutes; Lyoprotectant B agent adopts the formula of embodiment 4.
[0036] 2) Pre-freezing: Pre-freeze the pre-treated aquatic products at -25 to -30°C for 20 minutes;
[0037] 3) Vacuum freeze-drying: finally vacuum freeze-drying at a temperature of 28 Pa to 32 Pa and -35 to -45°C.
Embodiment 6
[0039] A kind of freeze-drying method of aquatic product, concrete steps are as follows:
[0040] 1) Pretreatment of aquatic products: wash the aquatic products, cut into pieces and remove the fat part, drain the water and add 10% freeze-drying protectant A, after standing for 15 minutes, add 5.5% freeze-drying protectant B, static Put for 20 minutes; Lyoprotectant B agent adopts the formula of embodiment 4.
[0041] 2) Pre-freezing: Pre-freeze the pre-treated aquatic products at -25 to -30°C for 15 minutes;
[0042] 3) Vacuum freeze-drying: finally vacuum freeze-drying at a temperature of 28 Pa to 32 Pa and -35 to -45°C.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com