Scenedesmus sp. HS4 Microalgae for Stable Loliolide Production
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Solution Overview
Problem
Current solutions for preventing and improving skin aging, such as using extracts from plants and retinol, are unstable to light and heat and can cause skin irritation, while there is a lack of efficient methods for producing loliolide using freshwater microalgae.
Innovation Solution
The development of Scenedesmus sp. HS4 microalgae, which has a high content of loliolide and excellent organic carbon catabolism efficiency, allowing it to grow in conditions without light and produce high biomass and loliolide productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extracts from plants and retinol are used to prevent and improve skin aging, then collagen synthesis is increased and keratinization is normalized, but stability to light and heat deteriorates and skin irritation occurs
Solution Approach 1:
The patent changes the chemical parameter from conventional retinol and plant extracts to loliolide, a cyclic ester compound with different chemical stability properties. Loliolide demonstrates resistance to light and heat degradation while maintaining biological activity, thereby resolving the contradiction between stability and skin irritation.
Solution Approach 2:
The patent employs loliolide as a stable alternative that does not degrade quickly under light and heat exposure, unlike retinol and plant extracts. This allows for longer shelf life and sustained efficacy without requiring frequent replacement or special storage conditions.
2Productivity
If conventional microalgae are used for loliolide production, then loliolide is produced, but productivity is low and production costs are high
Solution Approach 1:
The patent optimizes culture conditions including temperature (20-30°C), pH (7.0-8.0), and nutrient composition to maximize loliolide accumulation in Scenedesmus sp. HS4. These parameter adjustments result in significantly higher loliolide productivity compared to conventional microalgae strains.
Solution Approach 2:
The patent uses Scenedesmus sp. HS4 as a superior biological model that naturally accumulates high levels of loliolide. By selecting and cultivating this specific strain with optimized conditions, the system achieves high productivity at lower costs compared to using less efficient conventional microalgae.
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
Scenedesmus sp. HS4 microalgae achieves high loliolide productivity, reducing production costs and enabling the use of loliolide in medicines and cosmetics with antioxidant and anti-aging effects, while being stable and non-irritating to the skin.
Implementation Method 1
excellent organic carbon catabolism efficiency, allowing it to grow in conditions without light
Implementation Method 2
high content of loliolide and excellent organic carbon catabolism efficiency, allowing it to grow in conditions without light and produce high biomass and loliolide productivity
Data Source
AI summary
The present invention relates to novel microalgae with high productivity of loliolide, in which the Scenedesmus sp. HS4 of the present invention can be used as a biological resource to produce loliolide due to its high biomass productivity and high loliolide content, and can be used as a pharmaceutical composition or cosmetic composition which requires loliolide derived from Scenedesmus sp. HS4.