Environmental Load during the Distribution of Cultured Tuna

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  • SAKAI Rirei
    Course of Food Science and Technology, Graduate School of Tokyo University of Marine Science and Technology
  • WATANABE Manabu
    Department of Food Science and Technology, Tokyo University of Marine Science and Technology
  • SUZUKI Toru
    Department of Food Science and Technology, Tokyo University of Marine Science and Technology

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Other Title
  • 蓄養マグロ流通における環境負荷
  • 蓄養マグロ流通における環境負荷--冷凍マグロ(海上輸送)と冷蔵マグロ(航空輸送)の比較
  • チクヨウ マグロ リュウツウ ニ オケル カンキョウ フカ レイトウ マグロ カイジョウ ユソウ ト レイゾウ マグロ コウクウ ユソウ ノ ヒカク
  • Comparison of frozen tuna (marine transportation) and non-frozen tuna (air transportation)
  • －冷凍マグロ（海上輸送）と冷蔵マグロ（航空輸送）の比較－

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Description

Tuna is the most favorite marine products for Japanese people. Most of them are consumed as Sashimi in Japan, and a half of them are imported. Cold transportation technology is essential to keep freshness of tuna during the oversea transportation. In the case of transporting tuna, ship transportation in ultra low temperature such as -60 °C is applied and also high speed transportation even by using airplane is practically used. On the other hand, it is a fact that such transportation processes of tuna are giving huge environmental load, though it has not been so much focused. Evaluation of cold transportation technologies from this environmental viewpoint must be important in the future. In this article, we compared CO2 emission during cold transportations of frozen tuna (marine transportation) and non-frozen tuna (air transportation) by using LCI analysis. As a result, CO2 emission of non-frozen tuna is found to be about four times greater than that of frozen tuna. This is due to the difference in the amount of freight per transportation of the airplane and the ship.

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