METHOD FOR PROMOTING STORAGE MATERIAL PRODUCTION BY ALGA
|Posted date||May 7, 2019|
|International application number||2018JP017865|
|International publication number||WO 2018207804|
|Date of international filing||May 9, 2018|
|Date of international publication||Nov 15, 2018|
|Title||METHOD FOR PROMOTING STORAGE MATERIAL PRODUCTION BY ALGA|
[Problem] To provide a method, whereby an alga can be continuously cultured using a low-cost and simple means for inducing lipid synthesis, in order to efficiently utilize the alga as a biomass.
[Solution] A method for promoting the production of a storage material by an alga, said method comprising a step for continuously culturing and proliferating the alga under light irradiation conditions in a culture solution containing an oxystress inducing agent.
|Outline of related art and contending technology||
To suppress generation of carbon dioxide as a clean energy source, fuel derived from biomass (biofuel) is expected. Biofuels, algae, animal oils, soy, corn, oil and other cereal or the like produced using the various resources may be, the algae are, for each of the grain or the like to cause a problem of an increase in contrast they are not concerned with the food, is easy to culture, the type of the storage material and the production efficiency can be adjusted, are of particular interest as next generation energy source. So far, such as fats and sugars, increase the production capacity of the storage material of the algae a variety of methods have been studied.
Algae, nutritional deficiencies including nitrogen can be accumulated by the fat is known, the growth of algae is deteriorated by the nutritional deficiencies. That is, to suppress the production of biomass such as stress state, inducing the accumulation of fat in the algae is considered. Biomass production or both of the amount of fat and 1 as one means, algae biomass in optimized conditions to increase after culturing algae, fat accumulation is changed to the stress conditions to maximize the two-stage culture is being performed (for example, see Non-Patent Document 1). Such as a nitrogen starvation of the stress state, the active oxygen species in the growth of algae (ROS) results in an increase, the oxidation stress accumulation of fat in the algae is a mediator has been suggested (for example, see Non-Patent Document 2).
The inventors of the present invention, the leaves of green algae in the body by increasing the concentration of glutathione, nutrient limitation without performing the step, can improve the productivity of the biomass was found to be (for example, see Patent Document 1). The mechanism in its metabolism, oxidative stress and the productivity of the storage material and the relation between. Oxidative stress and lipid content to provide the algae is increased have been reported to another device (for example, see Patent Document 2 and 3).
|Scope of claims||
(In Japanese)請求の範囲 [請求項1]
|IPC(International Patent Classification)||
Contact Information for " METHOD FOR PROMOTING STORAGE MATERIAL PRODUCTION BY ALGA "
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