Fly Neonate Larvae Suspended Animation for Extended Shelf-Life
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Solution Overview
Problem
Existing methods for mass production and storage of insect larvae, particularly Black Soldier Fly (BSF) larvae, face inefficiencies due to variable egg yield, sensitivity to environmental conditions, and challenges in maintaining high survival rates and extended shelf-life, limiting the scalability and logistical complexity of production facilities.
Innovation Solution
A feed composition comprising a preservative and a gelling agent, such as agar, with low protein content and specific carbohydrate-to-protein ratios, induces a suspended animation state in neonate larvae, allowing them to be stored for extended periods while maintaining viability and enabling reversible development upon transfer to standard rearing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If neonate larvae are stored under standard conditions, then they maintain normal development, but their shelf-life is limited and they require continuous rearing resources
Solution Approach 1:
The patent applies parameter changes by modifying the nutritional composition parameters of the feed - specifically reducing protein content to 0-10% and adjusting carbohydrate-to-protein ratios - to induce a suspended animation state in neonate larvae. This parameter modification transforms the larvae's metabolic state, extending shelf-life from days to weeks while maintaining viability, thereby resolving the contradiction between limited shelf-life and continuous rearing time requirements
Solution Approach 2:
The patent implements preliminary action by preparing neonate larvae in advance with a specialized low-protein feed composition that induces suspended animation before storage or transportation. This preliminary nutritional treatment allows larvae to be prepared and stored ahead of time without degradation, eliminating the need for last-minute rearing operations and reducing continuous rearing time requirements
2Productivity
If larvae are grown to maturity quickly, then productivity increases, but survival rate decreases due to sensitivity to environmental conditions
Solution Approach 1:
The patent applies dynamics by creating a controllable, reversible state transition in larvae. The low-protein feed induces a suspended animation state that can be maintained during storage, and upon transfer to standard rearing conditions, larvae dynamically resume normal development. This dynamic state control allows survival rate improvement during storage while maintaining the option for rapid development afterward, resolving the productivity-survival rate contradiction
Solution Approach 2:
The patent implements beforehand cushioning by using the low-protein feed composition to prepare larvae for storage stress before it occurs. The specialized feed creates a protective physiological state that cushions larvae against environmental stresses during storage and transportation, thereby improving survival rate without permanently reducing their development potential, allowing both high productivity and high reliability
3Productivity
If on-site breeding units are established, then production capacity increases, but facility size and operational complexity increase
Solution Approach 1:
The patent applies the taking out principle by extracting the breeding function from the rearing facility. Instead of requiring on-site breeding units, the invention allows production to start from stored neonate larvae that have been prepared in advance with low-protein feed. This separates the breeding operation from the rearing operation, reducing facility complexity while maintaining production capacity through the extended shelf-life of stored larvae
Solution Approach 2:
The patent implements preliminary action by performing the breeding and neonate preparation phase in advance, before the actual rearing operation. Neonate larvae are produced, treated with low-protein feed to induce suspended animation, and stored for later use. This preliminary action eliminates the need for continuous on-site breeding operations, reducing facility operational complexity while maintaining production capacity through the stored larval stock
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 extends the shelf-life of neonate larvae by up to 14 days, supports high-density storage, and ensures a high percentage of larvae reach maturity comparable to standard-grown larvae, facilitating efficient and cost-effective transportation and rearing without the need for on-site breeding units.
Implementation Method 1
specific feed compositions prolong the first instar larval stages of Hermetia illucens (Black soldier fly) for at least 14 days, while maintaining their capability to proceed to advance growth stages
Implementation Method 2
The composition comprises at least one preservative and a gelling agent that provides for high content of aqueous solution while the composition is devoid of free liquid
Data Source
AI summary
The present invention provides compositions and methods for inducing suspended animation in neonate larvae of beneficial fly, particularly larvae of the Black soldier fly. During the suspended animation, the larvae show extended shelf-life and improved shipment durability. The suspended animation is reversible, and upon exposure to standard rearing conditions the larvae reach comparable maturity to corresponding non-suspended larvae.