Integrated production of biodegradable plastic from fermentation to synthesis by onsite cell plant system

现场细胞工厂系统从发酵到合成一体化生产生物降解塑料

• 批准号: 18360434
• 负责人: KOKUGAN Takao
• 金额: $ 10.92万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360434/
• 关键词: Cassava; Biodegradable plastic; Sustainable development; Productivity; Specific growth rate; Product inhibition; Onsite plant; Poly lactic acid

To reduce production cost of poly-lactic acid from biomass, we proposed onsite cell plant system of integrated production combined fermentation process, separation and refining process and synthesis process. It is necessary to make the processes to be satisfied with onsite specifications, that is, simple, compact, safety high productivity and long lifetime. The followings were clear for three processes :1. Fermentation process:・Fresh cassava root and tofu liquid waste are useful for substrate and media, respectively.・Streptococcus bovis fermented directly lactic acid from starch without saccharification2. Separation and refining process・Yield of esterification of lactic acid was affected by the starch concentration.・The esterification of lactic acid with butanol have highest conversion at 124℃3. Synthesis process・Poly lactic acid with molecular weight of 90kDalton was obtained without catalysis・Poly lactic acid with molecular weight of 20kDalton was obtained by direct reaction in 24hours.

为降低生物质聚乳酸的生产成本，提出了将发酵过程、分离精制过程和合成过程相结合的一体化生产现场细胞工厂系统。必须使工艺满足现场规范，即简单、紧凑、安全、高生产率和长寿命。三个过程明确如下：1。发酵过程：·新鲜木薯根和豆腐废液分别可用作底物和培养基。·牛链球菌不经糖化直接从淀粉中发酵乳酸2。分离和精制过程·淀粉浓度对乳酸酯化率有影响。乳酸与丁醇的酯化反应在124℃时转化率最高.合成工艺·不经催化剂合成了分子量为90kDalton的聚乳酸·直接反应24h得到了分子量为20kDalton的聚乳酸。

项目成果

米からプラスチック(2)米由来の発酵ブロスから乳酸の回収

大米中的塑料 (2) 从大米发酵液中回收乳酸

• 发表时间: 2008
• 作者: 劉志遠;○加藤 泰裕;国眼孝雄
• 通讯作者: 国眼孝雄

米由来の乳酸発酵液のイオン交換による吸着特性

离子交换法对大米乳酸发酵液的吸附性能

• 发表时间: 2008
• 作者: 格根 塔梛;Nugroho Riyanto Heru;国眼孝雄
• 通讯作者: 国眼孝雄

Lactic acid production fromhydrolysate of cassava bagasse by S. bovis

牛链球菌利用木薯甘蔗渣水解产物生产乳酸

• 发表时间: 2007
• 作者: Nadirman;Suripto and T. Kokugan
• 通讯作者: Suripto and T. Kokugan

Effect of supplements from food manufacturing waste on L-lactic acid production by Sbovis using fresh cassava roots in tofu liquid waste

食品制造废料中的补充剂对 Sbovis 使用豆腐废液中的新鲜木薯根生产 L-乳酸的影响

• 发表时间: 2006
• 期刊: Journal of Chemical Engineering of Japan 39 10)
• 作者: Abdul;ghofar;Takao;Kokugan
• 通讯作者: Kokugan

Plastic from rice(1), Lactic acid fermentation from rice

大米塑料(1)、大米乳酸发酵

• 发表时间: 2008
• 作者: Y.;Ito;G.;tana;N.;R.;Heru;T.;Kokugan
• 通讯作者: Kokugan