کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
681489 | 1460030 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of light sources on growth and carotenoid content of photosynthetic bacteria Rhodopseudomonas palustris Effects of light sources on growth and carotenoid content of photosynthetic bacteria Rhodopseudomonas palustris](/preview/png/681489.png)
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.
Journal: Bioresource Technology - Volume 113, June 2012, Pages 315–318