Abstract: The present invention relates to a Dunaliella salina OH214 strain having an improved ability to produce pigments, and in particular lutein. As it is possible to produce carotenoid pigments, specifically xanthophylls, with the Dunaliella salina OH214 strain by consuming less energy, it is possible to efficiently produce pigments at an industrial level. In addition, the Dunaliella salina OH214 strain can be applied as a raw material for foods, health functional foods, and pharmaceuticals, containing pigments. Moreover, the Dunaliella salina OH214 strain is a domestic native microalga in Korea and thus does not cause any GMO issues, it is possible to reduce costs by using seawater as a culture medium in Korea, and the effect of related industrial development can be expected.

Abstract: The present invention relates to a novel violaxanthin-overproducing strain of Chlorella vulgaris and a method of producing violaxanthin therefrom. The inventors have developed a strain that produces violaxanthin at a significantly higher level than a wild-type strain by inducing a random chemical mutation in a Chlorella vulgaris strain to, and then as a result of analysis, confirmed that the strain produces violaxanthin up to 0.41% based on dry weight, which reaches the highest level that is possible to be produced in microalgae. Furthermore, as a method of effectively extracting a carotenoid pigment containing violaxanthin from the strain was established, since the strain and the developed pigment extraction method according to the present invention allow effective production and separation of violaxanthin, the strain is expected to increase commercial applications such as cosmetics, health functional foods and feed.

Abstract: The present invention relates to a novel Chlamydomonas strain with an improved oil generation function, the strain of the present invention having useful mycological characteristics as a strain that provides a useful substance, such as a vegetable oil, in a microalga, as the strain has a fast cell growth speed and an excellent lipid generation function compared to conventional strains. In particular, the present invention can provide a vegetable oil with improved stability and a longer preservation period by containing, in a cell, a large amount of antioxidant pigments such as lutein and zeaxanthin, and can, thereby, be usefully used in industries such as food, medicine, cosmetics, etc., which utilize a vegetable oil.

Abstract: A novel alga mutant having improved pigment productivity is provided. The mutant can be used to produce carotenoid-based pigments, particularly, xanthophyll by using a small amount of energy, and thus can effectively produce pigment on an industrial level. In addition, the mutant can be used as a source for foods, health functional foods, and medications which contain a pigment. Further, when account is taken of the physiological characteristics of the euryhaline microalgae Dunaliella and the geological characteristics of Korean, the three sides of which are in contact with the sea, sea-water can be used as a culture medium, with the expectation of reducing the cost and leading to the development of related industries.

Abstract: The present invention relates to a novel violaxanthin-overproducing strain of Chlorella vulgaris and a method of producing violaxanthin therefrom. The inventors have developed a strain that produces violaxanthin at a significantly higher level than a wild-type strain by inducing a random chemical mutation in a Chlorella vulgaris strain to, and then as a result of analysis, confirmed that the strain produces violaxanthin up to 0.41% based on dry weight, which reaches the highest level that is possible to be produced in microalgae. Furthermore, as a method of effectively extracting a carotenoid pigment containing violaxanthin from the strain was established, since the strain and the developed pigment extraction method according to the present invention allow effective production and separation of violaxanthin, the strain is expected to increase commercial applications such as cosmetics, health functional foods and feed.

Abstract: A new alga having an improved ability to produce a pigment is disclosed. When the alga is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. The pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. Since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO.

Abstract: A new alga having an improved ability to produce a pigment is disclosed. When the new alga is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. The pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. Since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO, so that it is expected that the procedure of constructing the mutant can create a big economic effect in terms of an industry which produces lutein and zeaxanthin by using microalgae.

Abstract: A new alga having an improved ability to produce a pigment is disclosed. When the alga is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. The pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. Since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO.

Abstract: A new alga having an improved ability to produce a pigment is disclosed. When the new alga is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. The pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. Since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO, so that it is expected that the procedure of constructing the mutant can create a big economic effect in terms of an industry which produces lutein and zeaxanthin by using microalgae.

Abstract: The present invention relates to a new alga having an improved ability to produce a pigment, and when a mutant of the present invention is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. Further, the pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. In particular, since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO, so that it is expected that the procedure of constructing the mutant can create a big economic effect in terms of an industry which produces lutein and zeaxanthin by using microalgae.

Abstract: A novel alga mutant having improved pigment productivity is provided. The mutant can be used to produce carotenoid-based pigments, particularly, xanthophyll by using a small amount of energy, and thus can effectively produce pigment on an industrial level. In addition, the mutant can be used as a source for foods, health functional foods, and medications which contain a pigment. Further, when account is taken of the physiological characteristics of the euryhaline microalgae Dunaliella and the geological characteristics of Korean, the three sides of which are in contact with the sea, sea-water can be used as a culture medium, with the expectation of reducing the cost and leading to the development of related industries.

Abstract: The present invention relates to a new alga having an improved ability to produce a pigment, and when a mutant of the present invention is used, a carotenoid-based pigment, specifically, a xanthophyll can be produced by consuming less energy, so that it is possible to efficiently produce the pigment at the industrial level. Further, the pigment can be applied as a raw material for a food, a health functional food and a medicine, which include the pigment. In particular, since a DNA fragment is not likely to be inserted into a target base sequence or a base sequence other than the target, it is expected that the procedure of constructing the mutant is not regulated as a GMO, so that it is expected that the procedure of constructing the mutant can create a big economic effect in terms of an industry which produces lutein and zeaxanthin by using microalgae.

Abstract: The present invention relates to a light-inducible promoter and a gene expression system containing the same, and provides: a light-inducible promoter comprising a nucleotide sequence represented by SEQ ID NO: 12; and a method for producing heterologous proteins using the same. Since the light-inducible promoter of the present invention induces the expression of a gene by the irradiation of light and regulates an expression amount of the gene according to an intensity of light, it is possible to conveniently regulate the expression of the gene without straining the growth or metabolic process of an organism. In addition, the present invention can be applied to various types of organisms, and thus has a wide range of application.

Abstract: The present invention relates to a light-inducible promoter and a gene expression system containing the same, and provides: a light-inducible promoter comprising a nucleotide sequence represented by SEQ ID NO: 12; and a method for producing heterologous proteins using the same. Since the light-inducible promoter of the present invention induces the expression of a gene by the irradiation of light and regulates an expression amount of the gene according to an intensity of light, it is possible to conveniently regulate the expression of the gene without straining the growth or metabolic process of an organism. In addition, the present invention can be applied to various types of organisms, and thus has a wide range of application.

Abstract: The present invention relates to microalgae having high efficiency and ability to remove carbon dioxide, and the use thereof. More specifically, the invention relates to Scenedesmus producto-capitatus microalgae having high carbon dioxide fixation rate and the use thereof. The microalgae of the invention have a high carbon dioxide fixation rate and excellent resistance even to high concentrations of carbon dioxide, sulfur oxide (SOx) and nitric oxide (NOx) and are rich in biomass, and thus can be advantageously used in formulations for removing carbon dioxide.

Abstract: The present invention relates to microalgae having high efficiency and ability to remove carbon dioxide, and the use thereof. More specifically, the invention relates to Scenedesmus producto-capitatus microalgae having high carbon dioxide fixation rate and the use thereof. The microalgae of the invention have a high carbon dioxide fixation rate and excellent resistance even to high concentrations of carbon dioxide, sulfur oxide (SOx) and nitric oxide (NOx) and are rich in biomass, and thus can be advantageously used in formulations for removing carbon dioxide.