Fish Feed Additive Composition with Surfactants for Protein Digestibility

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Solution Overview

Problem

Existing feeds for fish and shellfish do not effectively promote protein digestion, which is crucial for improving the quality and growth of these aquatic organisms.

Innovation Solution

A feed additive composition comprising anionic and nonionic surfactants in a specific mass ratio, along with protein, enhances protein digestion by altering the protein structure and improving digestibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional feeds are used for fish and shellfish, then the basic nutritional requirements are met, but protein digestion is not effectively promoted, limiting growth and quality improvement

Engineering Contradiction:

Improvegrowth rateVSAvoidprotein digestion efficiency

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent changes the chemical parameters of the feed by incorporating surfactants (anionic and nonionic) that modify protein structure and properties. These surfactants alter the physical-chemical state of proteins, making them more accessible to digestive enzymes and improving digestion efficiency, thereby resolving the contradiction between growth productivity and protein digestion reliability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite approach by combining multiple surfactant types (anionic and nonionic) with specific protein sources. This composite material strategy creates synergistic effects where the surfactant-protein complexes enhance digestibility beyond what single components could achieve alone, addressing the protein digestion efficiency issue while supporting growth

Inventive Principle:

Principle #40Composite materials

2Quantity of substance

If protein content in feed is increased to promote growth, then nutritional value improves, but digestibility may decrease due to protein structure complexity

Engineering Contradiction:

Improveprotein contentVSAvoiddigestibility

Core Design Contradiction:

Quantity of substanceVSEase of manufacture

Solution Approach 1:

The surfactants act as intermediary substances between the protein and digestive enzymes. They form complexes with proteins, altering the protein structure to expose more enzyme-accessible sites. This intermediary action allows high protein content feeds to maintain or improve digestibility, resolving the contradiction between quantity and ease of digestion

Inventive Principle:

Principle #24Intermediary (Mediator)

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 composition significantly improves protein digestibility in fish and shellfish, leading to better growth performance and feed ingestibility.

Implementation Method 1

component (A) is capable of promoting the digestibility of proteins by acting on the proteins to change the structure thereof

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Implementation Method 2

Methodology Applied

Scientific EffectProtein structure alteration: Surfactant

Data Source

PatentEP4606223A1Additive composition for feed

Publication Date: 2025.08.27 KAO CORP

AI summary

Provided are a feed additive composition and a feed composition capable of promoting the digestion of proteins in fish and shellfish or the like which ingest protein-containing feeds. A feed additive composition composed of (A) an anionic surfactant and (B) a nonionic surfactant, wherein a mass ratio of a content of component (A) to a content of component (B) [(A)/(B)] is 0.7 or more and 20 or less.