Space-Bred Spirulina H11 Strain for High Bioactive Yield
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Solution Overview
Problem
The Spirulina industry in China faces challenges such as a homogeneous market, underestimation of product value, limited further-processing of active substances like phycocyanin and Spirulina polysaccharides, and high cultivation costs due to low growth rates and contamination issues, with existing technologies struggling to produce high-quality strains for large-scale extraction of these bioactive compounds.
Innovation Solution
A high-quality seawater Spirulina strain, Spirulina platensis H11, is obtained through space-breeding and multiple selections, which exhibits high growth rates and simultaneously accumulates high contents of phycocyanin, Spirulina polysaccharides, and β-carotene, enabling the production of high-quality Spirulina powders and β-carotene-rich oil, and can be cultivated using natural seawater with reduced fertilizer usage and lower contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional breeding methods are used to improve Spirulina strain quality, then breeding period is extended and mutation probability is limited, but this results in inability to produce high-performance strains with high growth rates and high bioactive substance contents
Solution Approach 1:
The patent applies space breeding technology to induce genetic mutations in Spirulina strains by exposing them to space environment factors (cosmic radiation, microgravity, vacuum). This fundamentally changes the breeding parameters by using extreme environmental conditions rather than traditional gradual selection methods, resulting in rapid generation of high-performance mutants with improved growth rates and bioactive substance accumulation capabilities within a short period
Solution Approach 2:
The patent performs preliminary genetic mutation induction in the space environment before ground-based cultivation and selection. By pre-exposing the strains to mutagenic space conditions and selecting promising mutants beforehand, the subsequent ground-based optimization process is accelerated, reducing the overall breeding time while ensuring high strain quality
2Productivity
If Spirulina strains with high growth rates are selected, then productivity is improved, but this may compromise the accumulation of bioactive substances such as phycocyanin, Spirulina polysaccharides, and β-carotene
Solution Approach 1:
The patent creates strains with localized quality improvements through space-induced mutations, where specific genetic changes enable simultaneous enhancement of both growth rate and bioactive substance synthesis pathways. The mutant strains exhibit differentiated metabolic characteristics that allow rapid cell division while maintaining high production of phycocyanin, polysaccharides, and carotenoids, resolving the trade-off between growth speed and substance accumulation
Solution Approach 2:
The patent develops composite-functional Spirulina strains that possess multiple desirable traits simultaneously - high growth rate, high phycocyanin content, high polysaccharide content, and high β-carotene content. Through space breeding and multi-generational selection, the strains integrate multiple functional characteristics that were previously mutually exclusive, creating a composite performance profile that satisfies both productivity and quality requirements
3Ease of manufacture
If conventional Spirulina cultivation is used, then production costs are high due to low growth rates, but switching to high-performance strains requires advanced breeding technology
Solution Approach 1:
The patent converts the harmful effects of space environment factors (cosmic radiation, vacuum, extreme temperatures) into beneficial mutagenic forces that drive genetic variation and improvement in Spirulina strains. By deliberately exposing cultures to these previously harmful conditions during space missions, the patent transforms environmental stressors into tools for creating high-performance strains with improved cultivation economics
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 Spirulina platensis H11 strain significantly increases biomass and bioactive compound production, reducing cultivation costs and enabling large-scale extraction of phycocyanin, Spirulina polysaccharides, and β-carotene, with high adaptability to outdoor environments and potential applications in health-care products, cosmetics, and aquafeeds.
Implementation Method 1
genetic variation of microalgae is induced, under the mutagenic effect of cosmic radiation, microgravity or complex electromagnetic environment
Implementation Method 2
genetic variation of microalgae is induced, under the mutagenic effect of cosmic radiation, microgravity or complex electromagnetic environment
Data Source
AI summary
A space-bred seawater Spirulina H11 strain. The strain exhibits high growth rate, capacity of simultaneously accumulating high contents of phycocyanin, Spirulina polysaccharides and β-carotene, and excellent adaptability to outdoor environment, thus can be used to produce high-quality Spirulina powders, phycocyanin, Spirulina polysaccharides, and β-carotene-rich Spirulina oil.