Earticle

초록

영어

The induction stage of the unicellular alga, Haematococcus pluvialis, is constituted by two parts, encystment which is a morphological change from vegetative green cell to the cyst, and carotenogenesis that is to progress accumulating the economically valuable carotenoid, astaxanthin.
And an effective induction requires the ROS (reactive oxygen species) generated by drastic environmental stresses like high light, high C/N ratio and high temperature. Therefore the microbe should be put on the pressure of transformation to encystment in the hard conditions. and such an intensive stresses lead to make the cell partially lethal by the burst of the oxidative damage so that a loss of the cell mass and the yield of astaxanthin. here we applied to combine an environmental stress (salt, sodium chloride) with an antioxidant (ascorbic acid) for the effective encystment to decrease the bio-factory loss caused by such an deadly damage, not for the case of carotenogenesis. The optimal condition to improve the carotenoid concentration was discovered at the 0.2%(w/v) NaCl with 0.1%(w/v) Ascorbic acid, cell mass 32% and total carotenoid concentration 23% enhanced respectively.

키워드

저자

• Min Eui HONG [ Dept. of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746. ]
• Sang Jun SIM [ Dept. of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576