Department of Aquaculture, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan.
Bioresour Technol. 2012 Jun;113:315-8. doi: 10.1016/j.biortech.2012.01.087. Epub 2012 Jan 28.
This study investigated the effects of eight light sources on photosynthetic bacteria (Rhodopseudomonas palustris) growth and carotenoid content (CD), cultured for 144 h. Light sources were incandescent lamp (IL), halogen lamp (HL), fluorescence lamp (FL), and light-emitting diodes (LEDs) of white (LW), yellow (LY), red (LR), blue (LB), and green (LG). Dark condition served as the control. Under around 2000 lux, light sources ranked greatest to least bacterial growth effect were (LB=IL) > FL > LW ≥ HL ≥ LR ≥ (LG=LY=DK). Ranking effect on CD content was LB > IL ≥ LY ≥ (HL=LR=LG) ≥ LW ≥ DK ≥ FL. Energy efficiency for bacterial growth was LB > LW > LY > IL > LG > HL > FL > LR. CD productivity ranking was LB > LY > LW > LG > IL > HL > LR > FL. Results revealed that LB saved 75% energy and increased CD productivity by 348% compared with IL.
本研究调查了 8 种光源对光合细菌（沼泽红假单胞菌）生长和类胡萝卜素含量（CD）的影响，培养时间为 144 小时。光源为白炽灯（IL）、卤素灯（HL）、荧光灯（FL）和发光二极管（LED）的白色（LW）、黄色（LY）、红色（LR）、蓝色（LB）和绿色（LG）。黑暗条件作为对照。在约 2000 勒克斯下，光源对细菌生长影响的排名从大到小依次为（LB=IL）>FL>LW≥HL≥LR≥（LG=LY=DK）。对 CD 含量的影响排序为 LB>IL≥LY≥（HL=LR=LG）≥LW≥DK≥FL。细菌生长的能效排名为 LB>LW>LY>IL>LG>HL>FL>LR。CD 生产力的排名为 LB>LY>LW>LG>IL>HL>LR>FL。结果表明，与 IL 相比，LB 节省了 75%的能量，CD 生产力提高了 348%。
