Sugar Beet Drying Preventing Enzymatic Degradation
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Solution Overview
Problem
Existing methods for drying sugar beet material often cause degradation, especially when dealing with unstabilized material, as they fail to prevent enzymatically catalyzed reactions with atmospheric oxygen or electromagnetic radiation.
Innovation Solution
A method involving the disintegration of sugar beet material into particles with a surface area of at least 2.0 cm², followed by immediate exposure to a controlled flow of drying gas at temperatures between 25°C to 160°C, and a flow rate of 5 m·s⁻¹ to 40 m·s⁻¹, to rapidly remove free water and prevent degradation reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fluid drying is used on unstabilized sugar beet material, then drying efficiency is improved, but material degradation occurs
Solution Approach 1:
The material is pre-stabilized by thermal inactivation of polyphenol oxidases at temperatures above 80°C before the fluid drying process. This preliminary action prevents enzymatic degradation during the subsequent high-efficiency fluid drying, allowing the use of aggressive drying conditions without quality loss.
Solution Approach 2:
The invention changes the temperature parameter during processing - using temperatures above 80°C for stabilization and then controlling the fluid drying temperature to achieve rapid water removal. This parameter change transforms the material state from vulnerable to resistant against degradation.
2Reliability
If thermal inactivation at temperatures above 80°C is applied, then polyphenol oxidase destruction is improved, but energy consumption increases
Solution Approach 1:
The thermal stabilization step is integrated continuously with the fluid drying process. The material flows continuously through the stabilization zone and then into the fluid drying zone, eliminating idle time and maximizing the efficiency of energy usage throughout the entire processing chain.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method effectively prevents the degradation of sugar beet material by rapidly removing free water and reducing the moisture content below 30% by weight, thereby maintaining the quality and stability of the material.
Implementation Method 1
converting water into water vapour
Implementation Method 2
exposure to a flow of drying gas at a temperature of 25° C. to 160° C.
Implementation Method 3
exposure to a flow of drying gas/gases at a temperature of 25° C. to 160° C. and at a flow rate of 5 m·s⁻¹ to 40 m·s⁻¹
Data Source
AI summary
A method for the disintegration and fluid drying of sugar beet material which prevents the material's degradation reaction from taking place and which includes the steps of disintegrating the sugar beet material to particles with a particle surface area of at least 2.0 cm2, and subsequent immediate exposure of the disintegrated material to a drying gas(es) at a temperature of 25° C. to 160° C. and a flow rate of 5 m·s31 1 to 40 m·s−1, where the relative humidity of the drying gas(es) at the inlet to the drying space is at most 85%; and subsequent mixing of the disintegrated material with a flow of drying gas(es) until attaining a value of dry matter of at least 70% by weight.