Effect of Light Quality and CO<SUB>2</SUB>Concentrationon Antioxidant Vitamin Contents in Autotrophycally Cultured <I>Euglena gracilis</I>

• Matsumoto Takahito

  Wakayama Prefectural Research Center of Environment and Pubulic Health

• Inui Hiroshi

  Graduate School of Life and Environmental Sciences, Osaka Prefecture University

• Miyatake Kazutaka

  Graduate School of Life and Environmental Sciences, Osaka Prefecture University

• Nakano Yoshihisa

  Graduate School of Life and Environmental Sciences, Osaka Prefecture University

• Murakami Katsusuke

  Graduate School of Bioresources, Mie University

Bibliographic Information

Other Title

• 光合成培養におけるユーグレナの抗酸化ビタミン量への光質とCO<SUB>2</SUB>濃度の影響
• 光合成培養におけるユーグレナの抗酸化ビタミン量への光質とCO2濃度の影響
• コウゴウセイ バイヨウ ニ オケル ユーグレナ ノ コウサンカ ビタミンリョウ エ ノ コウシツ ト CO2 ノウド ノ エイキョウ

Abstract

It has been reported that Euglena contained ascorbic acid (AsA), α-tocopherol (α-toc) and β-carotene (β-car) asantioxidant vitamins. These vitamins contribute to the available antioxidant and nutritional resources in human and animal bodies. In the present study, we investigated the effects of light quality and CO₂ concentration (0.04 % and 10 %) on the production of these vitamins, and compared the vitamin contents in Euglena with those in other food sources to verify the availability of Euglena as an antioxidant vitamin source. Under the CO₂ concentration of 0.04 %, vitamin contents in Euglena cultured in blue light were AsA 746 μg 10⁹ cells^-1, α-toc 704 μg 10⁹ cells^-1, β-car 513 μg 10⁹ cells^-1, respectivery, higher than those in other LED light conditions. Whereas under the CO₂ concentration of 10 %, vitamin contents in Euglena cultured in blue light were AsA 231 μg 10⁹ cells^-1, α-toc 221 μg 10⁹ cells^-1, β-car 208 μg 10⁹ cells^-1, respectivery, lower than those in ordinary air conditions (with 0.04 % CO₂). No significant differences in vitamin contents were found between the four light quality treatments under the CO₂ concentration of 10 %. In addition, vitamin contents in Euglena cultured in blue light under the CO₂ concentration of 0.04 % were also compared with those in other foods that are more popularly used as vitamin sources. It was concluded that Euglena would be good vitamin source when they are cultured in blue light under the ordinary air condition (with CO₂ concentration of 0.04 %).

Journal

• Eco-Engineering

  Eco-Engineering 19 (1), 33-38, 2007

  The Society of Eco-Engineering

Keywords

• <I>Euglena</I>
• Ascorbic acid
• α-Tocopherol β-Carotene
• Blue light

Details

• CRID: 1390282680166156288
• NII Article ID: 10018499340
• NII Book ID: AA12005685
• DOI: 10.11450/seitaikogaku.19.33
• ISSN: 18804500
• ISSN: 13470485
• NDL BIB ID: 8675645
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8675645
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed