発芽体集塊化法による深層水コンブ生産の事業化(Kombu(Saccharina japonica) commercial production using deep seawater and germling cluster method)
- 標題
- 発芽体集塊化法による深層水コンブ生産の事業化(Kombu(Saccharina japonica) commercial production using deep seawater and germling cluster method)
- 作者
- 平岡雅規、 蜂谷 潤(Masanori Hiraoka, Jun Hachiya)
- 文件屬性
- 日本研究
- 知識分類
- 水產養殖
- 出版年
- 2013
- 刊名
- 海洋深層水研究
- 卷
- 14
- 期
- 2
- 頁
- P127-128
- 點閱數
- 2700
摘要
高知県室戸市で、は海洋深層水を使った食用青海苔・スジアオノリ生産施設が2004年から稼働しており、年間の生産量は乾重量2t以上で2009年に黒字化している。2012年には当初計画されていた年間生産量3tにほぼ到達した。この施設では高効率海藻生産を実現するために、我々が開発した浮遊式で海藻を高密度タンク栽培できる胞子集塊化法(胞子および発芽体の集塊化による海藻養殖法:特許第3828359号)とシステムへの投入エネルギーを節約で、きる多段式タンクシステムが採用されている。これらの技術は、胞子を造って増殖する海藻に広く応用できる。スジアオノリの生産事業では一定の成果が得られたので、次の事業化を目指す海藻としてコンブ(マコンブ)を選定した。通常、食用コンブは数mの長さに生長した成体を加工したものが市場で販売されているが、胞子集塊化法を使ったタンク栽培では長さ10-20cm以下の小さい幼体が集塊化した新しい形状のコンブ(図1)が大量に生産できる。幼体コンブ生産の事業化に向けた実証試験を実施した。
A commercial-scale plant for the production of edible green laver， Ulva pro/ifèra using deep seawater (DSW) was established in Muroto， Kochi Prefecture， Japan in 2004. The plant produces more than 2t-dry weight per year and has been operating with a positive balanced budget financing since 2009. Actual laver production in 2012 reached approximately 3t-dry weight that is the maximum target for the plant. To realize intensive biomass production， this plant uses a new “germling cluster method" from our invention (Japan patent number 38283 59) for intensive tank culture of seaweeds in a free-tloating form and multistep tank series for saving energy input into the system. These methods can be applied to a wide range of seaweed species reproducing by means of spores. As the commercial production of U. prolifera has worked successfully， we selected kelp， Saccharina japonica (called“kombu"in Japan) for the next commercialscale production. General ly， the food products processed from well-developed adult p lants several meters long are sold in the market. However， using our culture technique， juvenile kombu clusters of less than 1 0-20 cm in length (Figure 1) can be produced in large quantities as the new products. We carried out a test examination for the commercial-scale production of the juvenile kombu plants.
A commercial-scale plant for the production of edible green laver， Ulva pro/ifèra using deep seawater (DSW) was established in Muroto， Kochi Prefecture， Japan in 2004. The plant produces more than 2t-dry weight per year and has been operating with a positive balanced budget financing since 2009. Actual laver production in 2012 reached approximately 3t-dry weight that is the maximum target for the plant. To realize intensive biomass production， this plant uses a new “germling cluster method" from our invention (Japan patent number 38283 59) for intensive tank culture of seaweeds in a free-tloating form and multistep tank series for saving energy input into the system. These methods can be applied to a wide range of seaweed species reproducing by means of spores. As the commercial production of U. prolifera has worked successfully， we selected kelp， Saccharina japonica (called“kombu"in Japan) for the next commercialscale production. General ly， the food products processed from well-developed adult p lants several meters long are sold in the market. However， using our culture technique， juvenile kombu clusters of less than 1 0-20 cm in length (Figure 1) can be produced in large quantities as the new products. We carried out a test examination for the commercial-scale production of the juvenile kombu plants.