Document Detail


Effects of light sources on growth and carotenoid content of photosynthetic bacteria Rhodopseudomonas palustris.
MedLine Citation:
PMID:  22330604     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study investigated the effects of eight light sources on photosynthetic bacteria (Rhodopseudomonas palustris) growth and carotenoid content (CD), cultured for 144h. 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 2000lux, 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.
Authors:
Fu-Shiu Kuo; Yew-Hu Chien; Chang-Jiang Chen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-28
Journal Detail:
Title:  Bioresource technology     Volume:  -     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-2-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Aquaculture, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan.
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