Publication:
Light irradiance and spectral distribution effects on cyanobacterial hydrogen production

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dc.contributor.authorSalleh S.F.en_US
dc.contributor.authorKamaruddin A.en_US
dc.contributor.authorUzir M.H.en_US
dc.contributor.authorMohamed A.R.en_US
dc.contributor.authorShamsuddin A.H.en_US
dc.contributor.authorid56367343500en_US
dc.contributor.authorid6507845299en_US
dc.contributor.authorid26536950000en_US
dc.contributor.authorid7402739263en_US
dc.contributor.authorid35779071900en_US
dc.date.accessioned2023-05-29T06:12:16Z
dc.date.available2023-05-29T06:12:16Z
dc.date.issued2016
dc.descriptionProductivity; Different lights; Energy source; Heterocystous cyanobacterium; Hydrogen production rate; Light irradiances; Light spectrum; Photosynthetic productivity; Spectral distribution; Hydrogen production; accumulation; cyanobacterium; flight; hydrogen; light effect; photosynthesis; spectrum; Cyanobacteriaen_US
dc.description.abstractLight is an essential energy source for photosynthetic cyanobacteria. Changes in both light irradiance and spectral distribution will affect their photosynthetic productivity. Compared to the light irradiance, little investigations have been carried out on the effect of light spectra towards cyanobacterial hydrogen production. Hence, this work aims to investigate the effects of both light quantity and quality on biohydrogen productivity of heterocystous cyanobacterium, A.variabilis. Under white light condition, the highest hydrogen production rate of 31 ?mol H2 mg chl a -1 h-1 was achieved at 70 ?E m-2 s-1. When the experiment was repeated at the same light irradiance but different light spectra of blue, red and green, the accumulations of hydrogen were significantly lower than the white light except for blue light. As the light irradiance was increased to 350 ?E m-2 s-1, the accumulated hydrogen under the blue light doubled that of the white light. Besides that, an unusual prolongation of the hydrogen production up to 120 h was observed. The results obtained suggest that blue light could be the most desirable light spectrum for cyanobacterial hydrogen production.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo12046
dc.identifier.doi10.1088/1755-1315/32/1/012046
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84966549736
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84966549736&doi=10.1088%2f1755-1315%2f32%2f1%2f012046&partnerID=40&md5=14efb39bc74a6ca8307073f2eaeaf229
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/22788
dc.identifier.volume32
dc.publisherInstitute of Physics Publishingen_US
dc.relation.ispartofAll Open Access, Bronze
dc.sourceScopus
dc.sourcetitleIOP Conference Series: Earth and Environmental Science
dc.titleLight irradiance and spectral distribution effects on cyanobacterial hydrogen productionen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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