Lipid for biodiesel production from attached growth Chlorella vulgaris biomass cultivating in fluidized bed bioreactor packed with polyurethane foam material

doi:10.1016/j.biortech.2017.04.118

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Title:	Lipid for biodiesel production from attached growth Chlorella vulgaris biomass cultivating in fluidized bed bioreactor packed with polyurethane foam material
Authors:	Ainur-Assyakirin Mohd-Sahib;Jun-Wei Lim;Man-Kee Lam;Yoshimitsu Uemura;Mohamed Hasnain Isa;Chii-Dong Ho;Shamsul Rahman Mohamed Kutty;Chung-Yiin Wong;Siti-Suhailah Rosli
Keywords:	Attached growth biomass;Fluidized bed bioreactor;Polyurethane foam;Chlorella vulgaris;Lipid
Date:	2017-09
Issue Date:	2017-06-09 02:10:25 (UTC+8)
Publisher:	Elsevier BV
Abstract:	The potential to grow attached microalgae Chlorella vulgaris in fluidized bed bioreactor was materialized in this study, targeting to ease the harvesting process prior to biodiesel production. The proposed thermodynamic mechanism and physical property assessment of various support materials verified polyurethane to be suitable material favouring the spontaneous adhesion by microalgae cells. The 1-L bioreactor packed with only 2.4% (v/v) of 1.00-mL polyurethane foam cubes could achieve the highest attached growth microalgae biomass and lipid weights of 812 ± 122 and 376 ± 37 mg, respectively, in comparison with other cube sizes. The maturity of attached growth microalgae biomass for harvesting could also be determined from the growth trend of suspended microalgae biomass. Analysis of FAME composition revealed that the harvested microalgae biomass was dominated by C16-C18 (>60%) and mixture of saturated and mono-unsaturated fatty acids (>65%), satiating the biodiesel standard with adequate cold flow property and oxidative stability.
Relation:	Bioresource Technology 239, p.127-136
DOI:	10.1016/j.biortech.2017.04.118
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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