Sohani Elnaz, Pajoum Shariati Farshid, Pajoum Shariati Seyed Ramin
Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Shahid Beheshti University, Tehran, Iran.
Prep Biochem Biotechnol. 2023;53(4):412-423. doi: 10.1080/10826068.2022.2098320. Epub 2022 Jul 27.
Cyanobacteria are photosynthetic aquatic microorganisms with light and dark photosynthesis reactions. In the present study, the effect of various light spectrums on light and dark reactions in was investigated. Chlorophyll and phycocyanin as light reaction pigments and vitamin B as a product of dark reaction were examined. was exposed to four different color LEDs (white, red, blue, and yellow) at a fixed intensity. In light reaction, chlorophyll-a has the highest amount in blue, red, white, and yellow by 61.23, 45.46, 34.85, and 22.55 mg·g, respectively. Those microalgae cultured in the blue color produced the highest amount of Chlorophyll and c-phycocyanin. For C-phycocyanin, the highest to the lowest amount belong to blue, red, yellow, and white light by 168.6, 102.4, 85.77, and 53.81 mg·g. The amount of vitamin B, from high to low is related to blue, red, white, and yellow light by 68.91, 59.73, 52.56, and 10.2 µg·g. The trend of vitamin B's production was similar to the chlorophyll . In conclusion, blue color can increase the production of vitamin B while keeping light reaction products at their highest level.
蓝藻是具有光和暗光合作用反应的光合水生微生物。在本研究中，研究了各种光谱对[具体对象未提及]光反应和暗反应的影响。检测了作为光反应色素的叶绿素和藻蓝蛋白以及作为暗反应产物的维生素B。[具体对象未提及]在固定强度下暴露于四种不同颜色的发光二极管（白色、红色、蓝色和黄色）。在光反应中，叶绿素a在蓝色、红色、白色和黄色中的含量最高，分别为61.23、45.46、34.85和22.55毫克·克。在蓝色光下培养的那些微藻产生的叶绿素和c-藻蓝蛋白含量最高。对于c-藻蓝蛋白，含量从高到低依次为蓝光、红光、黄光和白光，分别为168.6、102.4、85.77和53.81毫克·克。维生素B的含量从高到低与蓝光、红光、白光和黄光相关，分别为68.91、59.73、52.56和10.2微克·克。维生素B的产生趋势与叶绿素相似。总之，蓝色可以在保持光反应产物处于最高水平的同时增加维生素B的产量。
