Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis

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-co...

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Main Authors: Tan, X.B., Lam, M.K., Uemura, Y., Lim, J.W., Wong, C.Y., Ramli, A., Kiew, P.L., Lee, K.T.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.21571 /
Published: Elsevier Ltd 2018
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85043473341&doi=10.1016%2fj.enconman.2018.03.020&partnerID=40&md5=8c72f25c5636ef66596d01291fefe9de
http://eprints.utp.edu.my/21571/
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spelling utp-eprints.215712018-10-23T01:00:58Z Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis Tan, X.B. Lam, M.K. Uemura, Y. Lim, J.W. Wong, C.Y. Ramli, A. Kiew, P.L. Lee, K.T. 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 Elsevier Ltd 2018 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85043473341&doi=10.1016%2fj.enconman.2018.03.020&partnerID=40&md5=8c72f25c5636ef66596d01291fefe9de 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. http://eprints.utp.edu.my/21571/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description 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
format Article
author Tan, X.B.
Lam, M.K.
Uemura, Y.
Lim, J.W.
Wong, C.Y.
Ramli, A.
Kiew, P.L.
Lee, K.T.
spellingShingle Tan, X.B.
Lam, M.K.
Uemura, Y.
Lim, J.W.
Wong, C.Y.
Ramli, A.
Kiew, P.L.
Lee, K.T.
Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
author_sort Tan, X.B.
title Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
title_short Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
title_full Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
title_fullStr Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
title_full_unstemmed Semi-continuous cultivation of Chlorella vulgaris using chicken compost as nutrients source: Growth optimization study and fatty acid composition analysis
title_sort semi-continuous cultivation of chlorella vulgaris using chicken compost as nutrients source: growth optimization study and fatty acid composition analysis
publisher Elsevier Ltd
publishDate 2018
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
http://eprints.utp.edu.my/21571/
_version_ 1741196481259372544
score 11.62408

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