Fundamental Study on the Yield Prediction during Cultivating of Microalgae by Using Near-infrared Spectroscopy

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  • 近赤外分光法による微細藻類培養時の収量予測に関する基礎的研究
  • キンセキガイ ブンコウホウ ニ ヨル ビサイ ソウルイ バイヨウジ ノ シュウリョウ ヨソク ニ カンスル キソテキ ケンキュウ

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Abstract

Alternative kinds of energy for petroleum-dependent society are considered to be imminent in these years. As for the aircraft fuel which is usually produced from petroleum oil, introducing of biofuel to aircraft is really desired. Because microalgae have higher productivity than vegetable oil such as Jatropha, Camellia or Palm oil and have an adaptive flexibility to production site, biofuel for aircraft produced from microalgae is greatly expected to establish the advanced conversion technology of biofuel. In this study, the nondestructive rapid determination of population and dry weight of microalgae are discussed to establish the fundamental technique for efficient growth of microalgae. Euglena was used for experimental material. Thoma counting chamber, automatic cell counter and Near-infrared spectrometer were used for evaluate the yield of microalgae. As the results, the population and the dry weight of microalgae growing in cultures can be evaluated nondestructively with high accuracy by using multiple regression equation prepared from near-infrared spectroscopy. Light and dark cycle during cultivation is also considered to be effective on the yield of microalgae.

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