Discovery of environment friendly antifouling secondary metabolites to create new fishing net

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K14904
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 40030:Aquatic bioproduction science-related
• Research Institution: Shizuoka Institute of Science and Technology
• Principal Investigator: Takashi Kamada 静岡理工科大学, 理工学部, 准教授 (40815859)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 紅藻 / ソゾ / 二次代謝産物 / 含ハロゲン化合物 / テルペン / イガイ / 着生阻害 / 養殖網

Outline of Final Research Achievements

Secondary metabolites from red algae, marine mollusks, liverworts, and plants were evaluated for their antifouling activities on mussel tarsal filaments. Significant activity was observed for the terpenes from red algae and mollusks. Examination of the structure-activity relationship revealed that the presence or absence of halogen atoms is likely to play a significant role in the activity.
To develop a new environmentally friendly aquaculture net, I constructed a hydrogel layer on a commercially available net and examined whether it was possible to internalize marine terpenes. The results showed that the compatibility of the hydrogel polymeric agent with nets made of Tetoron was excellent and that it was possible to internalize low-molecular-weight compounds in the polymeric agent.

Free Research Field

海洋天然物化学

Academic Significance and Societal Importance of the Research Achievements

研究を推進し、農林水産省気候変動適応計画の目標項目に挙げられる「魚病への対策を講じること」と世界の定めるSDGs（持続可能な開発目標）の理念の一つである「海の豊かさを守ろう（14番）」に応えた。
本成果をマリンオープンイノベーション機構が主催したMaOIサロンで市民に広く紹介した。また「ひらめき☆ときめきサイエンス」に3年連続採択されており、児童の知的創造性を育む教育活動に積極的に参画した。