Subterranean Microalgae Culturing for High-Yield Bioproducts
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Solution Overview
Problem
Current methods are inadequate for culturing and producing biomass and bioproducts from subterranean microalgae, as they are typically rendered nonviable for analysis and cannot be effectively cultivated to meet the demand for innovative ingredients in health and personal care products.
Innovation Solution
Culturing microalgal cells from subterranean habitats in dark, low-light, or nutrient-rich conditions to manipulate and produce specific products such as biomass, exudates, pigments, lipids, proteins, or polysaccharides, using a combination of these conditions to induce the production of desired compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subterranean microalgae are collected and processed using conventional methods (disinfectant, acid, heat treatment), then morphological identification and DNA extraction can be performed, but the microalgae are rendered nonviable and cannot be cultivated for biomass production
Solution Approach 1:
The patent divides the analysis into two separate stages: (1) conventional processing of collected specimens for identification purposes, and (2) cultivation of fresh, viable specimens for biomass production. This segmentation allows different processing methods to be applied appropriately to each purpose without compromising the other.
Solution Approach 2:
The patent emphasizes the importance of preliminary action by collecting and preserving viable microalgal specimens in the field before they deteriorate. This preliminary collection and proper preservation enable subsequent cultivation and biomass production, whereas waiting until conventional processing is complete renders the cells nonviable.
2Productivity
If subterranean microalgae are cultivated using conventional phototrophic methods, then some biomass production can occur, but the productivity is insufficient to meet industrial demand for innovative ingredients
Solution Approach 1:
The patent applies parameter changes by transitioning from conventional phototrophic cultivation to heterotrophic fermentation conditions. This involves changing key parameters such as light exposure (to darkness), carbon source (to organic compounds), and oxygen availability, which collectively enable high-yield biomass production and diverse bioproduct synthesis that meets industrial demands.
Solution Approach 2:
The patent substitutes the mechanical/photosynthetic system (light-dependent photosynthesis) with a chemical/metabolic system (heterotrophic fermentation). This replacement of the photosynthetic mechanism with heterotrophic metabolism enables controlled, high-productivity biomass production and diverse bioproduct formation that cannot be achieved through conventional phototrophic methods alone.
3Productivity
If heterotrophic fermentation conditions are applied to subterranean microalgae, then high-yield biomass and bioproducts can be produced, but specialized cultivation systems are required
Solution Approach 1:
The patent demonstrates universality by showing that heterotrophic fermentation conditions can be applied to various subterranean microalgal species (including Chlorophyta, Cyanobacteria, and other phototrophs) to produce diverse bioproducts. The same fermentation approach works across different species and target products, making the system versatile despite the specialized conditions required.
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
Enables the industrial-scale production of unique microalgal substances with enhanced properties, suitable for use in cosmetics and personal care products, such as high-yield capsular exopolysaccharides and water-soluble carotenoids, addressing the need for innovative ingredients.
Implementation Method 1
The present invention pertains to fermentation methods for producing biomass and bioproducts from microalgae obtained from subterranean habitats
Data Source
AI summary
The invention pertains to a method for synthesizing a product of interest by culturing a microalgal cell obtained from a subterranean habitat for producing the product of interest. The microalgal cell obtained from a subterranean habitat can be cultured in the dark, in light, in low nutrition, or nutrient rich conditions for at least a portion of production cycle. A combination of these conditions can be used to specifically manipulate a microalgal cell culture to produce a product of interest. The product of interest can be a water-soluble carotenoid, for example, a water-soluble carotenoid produced by culturing an algae belonging to the genus Haematococcus or a capsular exopolysaccharide produced by culturing an algae belonging to the genus Parachlorella. Compositions containing the water-soluble carotenoid, for example, as sunscreen and compositions containing the exopolysaccharide, for example, as moisturizing cream are also described.