Enzyme Pre-Treatment for Oilseed Pressing Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for extracting oil from plant seeds are energy-intensive, time-consuming, and result in high equipment costs, with high phospholipid content and moisture requirements, limiting their efficiency and safety for both food and biodiesel production.
Innovation Solution
A method involving spraying dry oilseeds with an aqueous enzyme solution containing cellulolytic, lipolytic, pectinolytic, and proteolytic enzymes, which increases the natural water content by only 0.1-2% and allows for direct pressing without additional incubation or water addition, reducing phosphatide content and energy requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If organic solvent extraction is used to extract oil from plant seeds, then oil extraction efficiency is improved, but equipment cost and operating expenses increase significantly
Solution Approach 1:
The invention extracts the harmful and expensive element (organic solvents) from the oil extraction process while maintaining effective oil recovery. By using mechanical pressing alone with enzyme pre-treatment, the process eliminates the need for solvent extraction equipment while still achieving high oil extraction efficiency through enzymatic cell wall degradation.
Solution Approach 2:
The invention replaces the chemical extraction system (solvents and extraction equipment) with an enhanced mechanical pressing system. The enzyme pre-treatment modifies the seed structure to facilitate oil release during mechanical pressing, substituting the need for complex chemical extraction apparatus with a simpler mechanical system.
2Productivity
If organic solvent extraction is used, then oil can be extracted from press cake, but phospholipid content in oil increases to unacceptable levels
Solution Approach 1:
The invention applies enzyme pre-treatment before the main oil extraction process to modify the seed structure in advance. This preliminary enzymatic action degrades cell walls and releases oil in a controlled manner during pressing, preventing phospholipid contamination that would otherwise require removal through complex post-processing steps.
Solution Approach 2:
The invention changes the physical-chemical parameters of the oil extraction process by using controlled enzymatic hydrolysis at specific temperatures and pH levels before pressing. This parameter modification ensures that oil is released in a form that minimizes phospholipid content, achieving both high recovery and high quality without requiring solvent extraction.
3Reliability
If high water content (20-35%) is added during enzyme treatment, then enzyme activity is improved, but energy consumption for drying increases significantly
Solution Approach 1:
The invention optimizes the water content parameter to a moderate level (not the high 20-35% range) that still provides sufficient enzyme activity while minimizing the energy required for subsequent drying. This parameter optimization balances enzymatic hydrolysis effectiveness with energy efficiency in the overall process.
Solution Approach 2:
The invention maintains continuous enzyme action throughout the pressing process rather than requiring high initial water content followed by drying. The enzyme treatment is integrated with the pressing operation, allowing sustained enzymatic activity at lower water content levels without interrupting the oil extraction flow, thereby eliminating the need for energy-intensive drying steps.
4Manufacturing precision
If enzyme treatment with high water content is used, then cell wall degradation is improved, but processing time and incubation requirements increase
Solution Approach 1:
The invention applies enzyme pre-treatment for a short duration before pressing, achieving sufficient cell wall degradation in advance. This preliminary enzymatic action weakens the cell walls enough to facilitate oil release during pressing, reducing the need for prolonged incubation times while maintaining effective cell wall breakdown.
Solution Approach 2:
The invention merges the enzyme treatment step with the pressing operation, eliminating separate incubation and drying stages. The enzyme pre-treatment is integrated into the overall processing flow, allowing cell wall degradation to occur concurrently with or immediately before pressing, thereby reducing total processing time while achieving the necessary structural modification.
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 process enhances oil yield, reduces phosphatide content, and decreases energy consumption, making it suitable for both cooking oil and biodiesel production while minimizing equipment costs and environmental impact.
Implementation Method 1
spraying dry oilseeds with enzymes without significantly increasing the moisture content of the oilseeds
Implementation Method 2
aqueous solution containing one or more cellulolytic and/or lipolytic and/or pectinolytic and/or proteolytic enzyme(s)
Data Source
AI summary
The invention relates to a method for recovering oil from plant seeds, characterized in that a) an aqueous solution, containing one or more cellulolytic, and/or lipolytic, and/or pectinolytic, and/or proteolytic enzyme or enzymes, and or phytases is sprayed onto the seed material; b) the seed material so obtained is supplied in a known manner to a one-step or multistep pressing which optionally is coupled to an extraction step; and c) the oil is recovered in a known manner and optionally processed further; and the use of the method, particularly for the production of food oil or biodiesel.