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Bioethanol production from farming non-food macroalgae in Pacific island nations: Chemical constituents, bioethanol yields, and prospective species in the Philippines

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  • Borines, M.G.
  • de Leon, R.L.
  • McHenry, M.P.
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    Abstract

    Increasing biofuel production on agricultural lands in tropical island nations will likely result in increased deforestation [1], and also inflate food prices, especially in net food importing countries like the Philippines [2–4]. Compounding problems associated with promotion of biofuels in southeast Asian countries are the technical efficiencies of bioethanol production, including poor energy balances from terrestrial crops that are close to, or less than unity, unless bagasse is used as the distillation heat source [1]. As the increase in terrestrial biofuel production in Pacific island nations is potentially less sustainable than is publically stated, alternative feedstocks are required which retain the regional development benefits, while reducing the negative ecological and food security impacts [1,5]. This work presents the potential of farmed macroalgae chemical substrates as a bioethanol feedstock supply, explores macroalgae-to-bioethanol yields, and details prospective non-food macroalgae species, specific to the Philippine coastal region. Leveraging off the existing capability of the macroalgae farming industry (producing 1.7 million wet tonnes annually in the Philippines alone), a significant new market for non-food macroalgae stimulated by bioethanol producers can be developed to avoid problems related to food/feed grade ethanol feedstocks.

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    Bibliographic Info

    Article provided by Elsevier in its journal Renewable and Sustainable Energy Reviews.

    Volume (Year): 15 (2011)
    Issue (Month): 9 ()
    Pages: 4432-4435

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    Handle: RePEc:eee:rensus:v:15:y:2011:i:9:p:4432-4435

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    Related research

    Keywords: Renewable biofuel; Bioethanol; Mariculture; Macroalgae; Sargassum spp.;

    References

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    1. Ge, Leilei & Wang, Peng & Mou, Haijin, 2011. "Study on saccharification techniques of seaweed wastes for the transformation of ethanol," Renewable Energy, Elsevier, vol. 36(1), pages 84-89.
    2. van der Meulen Rodgers, Yana & Menon, Nidhiya, 2011. "Impact of the 2008-2009 Food, Fuel, and Financial Crisis on the Philippine Labor Market," IZA Discussion Papers 6204, Institute for the Study of Labor (IZA).
    3. Sobrevinas, Alellie B. & de Jesus, Jeremy & Reyes, Celia M. & Bancolita, Joel E., 2009. "Analysis of the Impact of Changes in the Prices of Rice and Fuel on Poverty in the Philippines," Discussion Papers DP 2009-07, Philippine Institute for Development Studies.
    4. Celia M. Reyes & Alellie B. Sobrevinas & Joel Bancolita & Jeremy de Jesus, 2009. "Analysis of the Impact of Changes in the Prices of Rice and Fuel on Poverty in the Philippines," Development Economics Working Papers 22687, East Asian Bureau of Economic Research.
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