Olive Kernel Fish Feed Enrichment with Polar Lipids
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Farmed fish have higher fat content compared to wild-caught fish, and previous attempts to incorporate olive processing byproducts into fish feeds have resulted in slow growth and nutritional issues due to high fiber content, leading to increased mortality and inadequate cardioprotective benefits.
Innovation Solution
A fish feed containing olive kernel with a weight percentage ranging from 3.1% to 7.7% is mixed with vegetable and animal meals, providing biologically active polar lipids that inhibit Platelet Activating Factor, preventing the formation of atheromatous plaque in fish flesh, which is then used to enrich the flesh of Sparidae and Moronidae species, such as gilthead sea bream and sea bass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If olive processing byproducts are incorporated into fish feeds, then cardioprotective benefits are improved, but fish growth is reduced and mortality increases due to high fiber content
Solution Approach 1:
The invention extracts and removes the high fiber content from olive processing byproducts before incorporating them into fish feed. This extraction process eliminates the harmful fiber component that causes slow growth and mortality, while retaining the beneficial polar lipids that provide cardioprotective effects.
Solution Approach 2:
The invention changes the physical and chemical parameters of olive byproducts through processing methods that reduce fiber content and modify the composition. By altering these parameters, the feed becomes suitable for fish consumption while maintaining the desired health benefits.
2Quantity of substance
If olive kernel is added to fish feed, then polar lipid content is improved, but fiber content increases causing nutritional intestinal problems
Solution Approach 1:
The invention extracts and removes the harmful fiber component from olive kernel while retaining the beneficial polar lipids. This selective extraction eliminates intestinal problems caused by high fiber content while preserving the cardioprotective polar lipid content.
Solution Approach 2:
The invention creates a composite feed material by combining processed olive kernel (with reduced fiber) with other feed components. This composite approach balances the nutritional profile, providing polar lipids without excessive fiber that would cause intestinal issues.
3Use of energy by moving object
If olive pomace is used as energy source in fish feed, then energy content is improved, but fish growth is reduced due to high fiber content
Solution Approach 1:
The invention extracts and removes the high fiber content from olive pomace before using it as an energy source in fish feed. This removal of fiber eliminates the growth-limiting factor while preserving the energy-providing components.
Solution Approach 2:
The invention changes the compositional parameters of olive pomace through processing to reduce fiber content. This parameter modification allows the pomace to serve as an effective energy source without the growth-retarding effects of high fiber.
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
The enriched fish feed promotes healthy growth without compromising fish health, providing cardioprotective benefits by inhibiting atherosclerosis in both fish and humans, as demonstrated by in vivo experiments with rabbits, and results in a functional food with enhanced protective action against cardiovascular diseases.
Implementation Method 1
olive kernel, including polar lipids with anti-Platelet Activating Factor action
Data Source
Figure 1~3
Figure 2A~2C
Figure 4
AI summary
The invention relates to the production of fish feed with olive ingredients intended for farmed freshwater and saltwater fish and the aquaculturing of freshwater and saltwater fish which are fortified or enriched through their feeding with ingredients derived from olive processing byproducts. The invention also relates to the fortified or enriched fishes as such. In particular the invention relates to fishes if the families of Sparidae, such as gilthead seabream - binomial name: Sparus aurata - and Moronidae, such as seabass - binomial name: Dicentrarchus labrax. The fish feed contains olive kernel, including polar lipids with anti-Platelet Activating Factor action and the weight content of the olive kernel in the fish feed being in a range from 3.1 % to 7.7 % of the weight of the fish feed. According to the invention, fishes from the family of Sparidea or the family of Moronidae contain in their flesh biologically active polar lipids from olive kernel that act as Platelet Activating Factor inhibitors or agonists. The consumption of these fishes prevents the formation of atherosclerotic lesions in in vivo experiments with rabbits.