Method for shortening processing time of microwave freezing drying of fruit or vegetable powder by utilizing dielectric core
A microwave freezing and kernel technology, which is applied in application, food preservation, food preparation, etc., can solve the problems of reduced ability to absorb microwave energy, low dielectric coefficient, overheating of products, etc., and achieve less residual microorganisms, high cost performance, and increased output Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0014] Embodiment 1: Microwave vacuum freeze-drying strawberry powder production with dielectric core
[0015] Fresh strawberries (moisture content of 95% on a wet basis) are firstly selected, cleaned, destemmed, beaten, and treated with pectinase for 3 hours, added with high fructose syrup at an amount of 5g / kg, and concentrated in a vacuum until the moisture content of a wet basis is 50% %, implanted nano-titanium oxide ceramics with a dielectric coefficient of 80-100, cylinders with a size of 30×Φ20-30×Φ50mm, and placed symmetrically at intervals of 100mm-300mm; after freezing for 15 minutes at -36°C Carry out microwave vacuum freeze-drying (pressure 80Pa, microwave power 1600W within 0-2h, microwave power 800W within 2-3h, cold trap temperature -50°C), dehydrate to wet basis moisture content 6%, pulverize, pass through 80 mesh sieve, get Strawberry powder, packed and stored away from light. Drying took 3 hours.
Embodiment 1
[0016] Comparative Example 1, the production of microwave vacuum freeze-dried strawberry powder without a dielectric core: first, through selection, cleaning, destemming, beating, adding pectinase enzymolysis treatment for 3 hours, vacuum concentration to a moisture content of 50% on a wet basis, and Microwave vacuum freeze-drying (pressure 80Pa, microwave power 1600W within 0-4h, microwave power 800W within 4-8h, cold trap temperature -50°C) after freezing at -36°C for 15min, and dehydration to moisture content of 6 %, crushed, passed through an 80-mesh sieve to obtain strawberry powder, packaged, and stored away from light. Drying took 8 hours.
Embodiment 2
[0017] Embodiment 2: Microwave vacuum freezing white mushroom powder production with dielectric core
[0018] Fresh white mushrooms (moisture content on a wet basis: 92%) are first selected, washed, cut into pieces, blanched (100°C, 5 minutes), then cooled, added with an appropriate amount of water for beating, added with refined table salt at an amount of 10g / kg, and vacuum Concentrate to a moisture content of 50% on a wet basis, implant nano-titanium oxide ceramics with a dielectric coefficient of 80-100, and place cylinders with a size of 30×Φ20-30×Φ50mm at intervals of 100mm-300mm, symmetrically placed; at -40°C Microwave freeze-drying (pressure 100Pa, 0-3h microwave power 1600W, 3-6h microwave power 800W, cold trap temperature -50°C), dehydration to wet basis moisture content 8%, crushed through 80 mesh Sieve to get white mushroom powder, then pack and store. Drying took 6 hours.
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