Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction

Botryococcus braunii, a green microalga, has been acknowledged as a possible source of renewable fuel that holds significant potential. However, it has been associated with a slow growth rate and low productivity. Thus, the aim of this study was to investigate the effects of ultraviolet (UV)-C on B....

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Main Authors: Theera Thurakit, Chayakorn Pumas, Wasu Pathom-aree, Jeeraporn Pekkoh, Yuwadee Peerapornpisal
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9657
http://cmuir.cmu.ac.th/jspui/handle/6653943832/64233
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spelling th-cmuir.6653943832-642332019-05-07T09:59:53Z Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction Theera Thurakit Chayakorn Pumas Wasu Pathom-aree Jeeraporn Pekkoh Yuwadee Peerapornpisal Botryococcus braunii, a green microalga, has been acknowledged as a possible source of renewable fuel that holds significant potential. However, it has been associated with a slow growth rate and low productivity. Thus, the aim of this study was to investigate the effects of ultraviolet (UV)-C on B. braunii AARL G037 for the purposes of improving biomass, lipid and hydrocarbon production levels. The survival rate was found to be in a range of 0.66-12.54% after being exposed to UV-C radiation for 3-21 minutes. The highest level of biomass production was acquired from UV-C induced isolate no. U18J10 at 2,325.67 mg L-1 and was equivalent to 1.32 times higher than the wild type. The highest hydrocarbon and lipid contents were found in B. braunii U18N14, which were recorded at 76.03% and 34.00%, respectively. Meanwhile, wild type, B. braunii AARL G037 accumulated hydrocarbons and lipids at only 45.81% and 22.70%, respectively. A study on the biodiesel properties revealed that 9-octadecanoic acid, methyl ester (C18:1) was the major fatty acid methyl ester. Moreover, biodiesel properties acquired from B. braunii wild type and all UV-C induced isolates were conformed to the EN14214 standard. 2019-05-07T09:59:53Z 2019-05-07T09:59:53Z 2018 บทความวารสาร 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9657 http://cmuir.cmu.ac.th/jspui/handle/6653943832/64233 Eng Science Faculty of Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Botryococcus braunii, a green microalga, has been acknowledged as a possible source of renewable fuel that holds significant potential. However, it has been associated with a slow growth rate and low productivity. Thus, the aim of this study was to investigate the effects of ultraviolet (UV)-C on B. braunii AARL G037 for the purposes of improving biomass, lipid and hydrocarbon production levels. The survival rate was found to be in a range of 0.66-12.54% after being exposed to UV-C radiation for 3-21 minutes. The highest level of biomass production was acquired from UV-C induced isolate no. U18J10 at 2,325.67 mg L-1 and was equivalent to 1.32 times higher than the wild type. The highest hydrocarbon and lipid contents were found in B. braunii U18N14, which were recorded at 76.03% and 34.00%, respectively. Meanwhile, wild type, B. braunii AARL G037 accumulated hydrocarbons and lipids at only 45.81% and 22.70%, respectively. A study on the biodiesel properties revealed that 9-octadecanoic acid, methyl ester (C18:1) was the major fatty acid methyl ester. Moreover, biodiesel properties acquired from B. braunii wild type and all UV-C induced isolates were conformed to the EN14214 standard.
format บทความวารสาร
author Theera Thurakit
Chayakorn Pumas
Wasu Pathom-aree
Jeeraporn Pekkoh
Yuwadee Peerapornpisal
spellingShingle Theera Thurakit
Chayakorn Pumas
Wasu Pathom-aree
Jeeraporn Pekkoh
Yuwadee Peerapornpisal
Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
author_facet Theera Thurakit
Chayakorn Pumas
Wasu Pathom-aree
Jeeraporn Pekkoh
Yuwadee Peerapornpisal
author_sort Theera Thurakit
title Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
title_short Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
title_full Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
title_fullStr Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
title_full_unstemmed Enhancement of Biomass, Lipid and Hydrocarbon Production from Green Microalga, Botryococcus braunii AARL G037, by UV-C Induction
title_sort enhancement of biomass, lipid and hydrocarbon production from green microalga, botryococcus braunii aarl g037, by uv-c induction
publisher Science Faculty of Chiang Mai University
publishDate 2019
url http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=9657
http://cmuir.cmu.ac.th/jspui/handle/6653943832/64233
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