RRC ID 33929
Author Poonkum W, Powtongsook S, Pavasant P.
Title Astaxanthin induction in Microalga H. pluvialis with flat panel airlift photobioreactors under indoor and outdoor conditions.
Journal Prep Biochem Biotechnol
Abstract Astaxanthin was induced from Haematococcus pluvialis (NIES-144) under indoor and outdoor conditions using 17-, 50-, and 90-L flat-panel airlift photobioreactors (FP-APBRs). Preliminary experiments in 1.5-L bubble column photobioreactors (BC-PBRs) revealed that sterilized clean water with 3% CO2 aeration (1.47 cm(3) s(-1) CO2 loading) could best encourage astaxanthin accumulation at 18.21 g m(-3) (3.63% by weight). Operating 17-L FP-APBRs with these bubble column parameters under indoor conditions could further enhance astaxanthin to 26.63 g m(-3) (5.34% by weight). This was potentially due to the inherited up-lift force from the reactor that helped avoid cell precipitation by allowing the cells to be circulated within the reactor. In addition, the various sizes of FP-APBRs exhibited similar performance, implying a potential scale-up opportunity. However, similar operation under outdoor condition exhibited slightly poorer performance due to the light inhibition effect. The best outdoor performance was obtained with the FP-APBR covered with one layer of shading net, where 20.11 g m(-3) (4.47% by weight) of astaxanthin was resulted.
Volume 45(1)
Pages 1-17
Published 2015-1-1
DOI 10.1080/10826068.2013.867871
PMID 25105532
MeSH Biotechnology / instrumentation Biotechnology / methods* Carbon Dioxide / metabolism Cell Count Chlorophyta / growth & development Chlorophyta / metabolism* Culture Media Equipment Design Microalgae / metabolism* Photobioreactors* Xanthophylls / metabolism
IF 1.415
Times Cited 13
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY BIOCHEMICAL RESEARCH METHODS BIOCHEMISTRY & MOLECULAR BIOLOGY
Resource
Algae NIES-144