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

Chao-Fan Ji, Xingju Yu, Zhaoan Chen, Song Xue, Jack Legrand, Wei Zhang

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)5817-5821
    Number of pages5
    JournalInternational Journal of Hydrogen Energy
    Volume36
    Issue number10
    DOIs
    Publication statusPublished - May 2011

    Keywords

    • Green algae
    • Nutrient starvation
    • Photo-hydrogen production
    • Tetraselmis subcordiformis

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