Study on microbial synthesis of Astaxanthin using food waste

2016 Fiscal Year Final Research Report

• Project/Area Number: 26550078
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental conscious materials and recycle
• Research Institution: Oshima National College of Maritime Technology
• Principal Investigator: SUGIMURA YOSHIAKI 大島商船高等専門学校, その他部局等, 准教授 (90300623)
• Co-Investigator(Renkei-kenkyūsha): TORISAKA Eiichi 山口大学, 大学院・創成科学研究科・化学系専攻, 准教授 (40363543) ; FUKUNAGA Kimitoshi 山口大学, 大学院・理工学研究科・環境共生系専攻, 元教授 (40035069)
• Research Collaborator: MASAKI Fumiaki 山口大学, 大学院・理工学研究科・環境共生系専攻 ; KOBAYASHI Tetsuya 山口大学, 大学院・理工学研究科・環境共生系専攻 ; YAMASAKI Syusuke 山口大学, 工学部・循環環境工学科
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: アスタキサンチン / 食品廃棄物

Outline of Final Research Achievements

The one-pot production of highly unsaturated fatty acid (PUFA) and astaxanthin (Atx) from the culture of a marine microorganism, Thrautochitorium 　sp. CHN-1 on food wastes with a reciprocating shaker or an small external loop airlift bubble column reactor were investigated.　It was found that hexose such as glucose in Okara-enzyme hydrolysates have the great potential as a fermentation carbon substrates.　A rice bran, Sake lees, and squeezed residues of fruit juices, as well as Okara hydrolysates, were also found to be available for the present one-pot production.　A high content of Atx in the carotenoids was obtained under forced-air culture conditions.

Free Research Field

生物反応工学