Effects of nutrient deprivation on biochemical compositions and photo-hydrogen production of Tetraselmis subcordiformis

Tetraselmis subcordiformis (formerly called Platymonas subcordiformis), a marine green alga, was previously demonstrated to photo-biologically produce hydrogen when treated with CCCP (Carbonyl Cyanide m-Chlorophenylhydrazone). The current results of our studies showed that there was a peak yield of...

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Bibliographic Details
Published in:International journal of hydrogen energy 2011-05, Vol.36 (10), p.5817-5821
Main Authors: Ji, Chao-Fan, Yu, Xing-Ju, Chen, Zhao-An, Xue, Song, Legrand, Jack, Zhang, Wei
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Biochemistry
Carbohydrates
Cultivation
Deprivation
Energy
Exact sciences and technology
Fuels
Green algae
Hydrogen
Hydrogen production
Nutrient starvation
Nutrients
Photo-hydrogen production
Proteins
Sulfur
Sulphur
Tetraselmis subcordiformis
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Summary:Tetraselmis subcordiformis (formerly called Platymonas subcordiformis), a marine green alga, was previously demonstrated to photo-biologically produce hydrogen when treated with CCCP (Carbonyl Cyanide m-Chlorophenylhydrazone). The current results of our studies showed that there was a peak yield of hydrogen by T. subcordiformis at the stationary stage of its algal growth curve, suggesting that starvation of an essential element induced biochemical changes that enhanced hydrogen production by T. subcordiformis. Further investigation indicated that among nitrogen, sulphur and phosphorus (which are major components in the cultivation medium), nitrogen deprivation in the medium reduced the protein content inside the cells of T. subcordiformis, but increased the carbohydrate content over 4 times, resulting in 5.5 times increase in the hydrogen yield.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2010.12.138