METHOD FOR PRODUCING ASTAXANTHIN

• Main Authors: OHASHI EIJI, IZUMIDA HITOSHI, NUMAZAWA TORU
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2017
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

PROBLEM TO BE SOLVED: To provide a method for producing astaxanthin with increased efficiency by culturing microalgae.SOLUTION: According to the present invention, there is provided a method for producing astaxanthin in which microalgae are cultured to produce astaxanthin in their algal bodies. Here, at least light irradiation during a culturing period of astaxanthin is carried out using a blue light LED having a peak wavelength of 420 to 500 nm and a red light LED having a peak wavelength of 620 to 690 nm. The ratio of the blue light LED having the peak wavelength of 420 to 500 nm and the red light LED having the peak wavelength of 620 to 690 nm is preferably 1:19 to 19:1 in the photon flux density. Their photon flux densities are preferably 20 μmol/m/s or more.SELECTED DRAWING: None 【課題】微細藻の培養によるアスタキサンチンの生産方法の効率を高める。【解決手段】微細藻を培養して藻体内にアスタキサンチンを生産させるアスタキサンチンの生産方法において、培養期間中の少なくともアスタキサンチン生産培養期間の光照射をピーク波長が420〜500nmの青色光LEDとピーク波長が620〜690nmの赤色光LEDを併用して行うことを特徴とするアスタキサンチンの生産方法である。ピーク波長420〜500nmの青色光LEDとピーク波長620〜690nmの赤色光LED の比は、光量子束密度で1:19〜19:1が好ましく、光量子束密度がそれぞれ20μmol/m2/s以上が好ましい。【選択図】 なし