eprintid: 10311
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/03/11
datestamp: 2023-11-09 16:36:56
lastmod: 2023-11-09 16:36:56
status_changed: 2023-11-09 16:31:06
type: article
metadata_visibility: show
creators_name: Tan, X.B.
creators_name: Lam, M.K.
creators_name: Uemura, Y.
creators_name: Lim, J.W.
creators_name: Wong, C.Y.
creators_name: Ramli, A.
creators_name: Kiew, P.L.
creators_name: Lee, K.T.
title: Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
ispublished: pub
keywords: Algae; Animals; Biodiesel; Biomass; Extraction; Microorganisms; Nutrients; Unsaturated fatty acids, Biomass productivity; Chlorella vulgaris; Fatty acid composition; Fatty acid methyl ester; Fourier transform infra reds; Growth optimization; Micro-algae; Semi-continuous, Composting
note: cited By 49
abstract: In the present study, cultivation of Chlorella vulgaris was extensively explored under semi-continuous approach to enhance its growth. The microalgae were cultivated in a photobioreactor supplemented with compost derived from chicken waste as an alternative nutrients source in both batch and semi-continuous cultivations. It was found that Chlorella vulgaris grew well up to 17 cycles of semi-continuous cultivation based on the following conditions for each cycle (3 days per cycle): 30 (v/v) removal of cultivation medium and 0.04 L/L of chicken compost in cultivation medium of pH 3. The average biomass productivity attained through these conditions was 0.0736 g/L/day, which was higher than batch cultivation (0.0568 g/L/day). Besides, the average total lipid content from each cycle under semi-continuous cultivation was maintained in the range of 25�35 wt. The success of lipid extraction from the microalgae biomass was evidenced by the result of Fourier Transform Infrared Red (FT-IR) analysis that revealed lower peak intensity of carbon, especially in the range 2809�3012 cm�1 after lipid extraction. It was also worthwhile to mention that the fatty acid methyl ester (FAME) compositions of Chlorella vulgaris consisted mainly of C16:0 and C18:3 that were not significantly altered during the semi-continuous cultivation. Both saturated and unsaturated fatty acids in the harvested biomass accounted for approximately 26.3 and 73.3, respectively, within 5 cycles of the cultivation. © 2018 Elsevier Ltd
date: 2018
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85043473341&doi=10.1016%2fj.enconman.2018.03.020&partnerID=40&md5=8c72f25c5636ef66596d01291fefe9de
id_number: 10.1016/j.enconman.2018.03.020
full_text_status: none
publication: Energy Conversion and Management
volume: 164
pagerange: 363-373
refereed: TRUE
issn: 01968904
citation:   Tan, X.B. and Lam, M.K. and Uemura, Y. and Lim, J.W. and Wong, C.Y. and Ramli, A. and Kiew, P.L. and Lee, K.T.  (2018) Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis.  Energy Conversion and Management, 164.  pp. 363-373.  ISSN 01968904