SBIR Phase II: Novel Bioprocess for Lipid Production from Industrial Byproducts
SBIR 第二阶段:利用工业副产品生产脂质的新型生物工艺
基本信息
- 批准号:1632255
- 负责人:
- 金额:$ 75万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-10-01 至 2020-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The broader impact/commercial potential of this Small Business Innovation Research Phase II Project is to produce economically the next generation of sustainable, renewable, clean burning, high energy density, transportation biofuels. The proposed technology once successfully developed will enable existing biofuel producers to reduce their costs while increasing the value and diversity of their byproducts. It will convert their industrial waste products into tailored fatty acids suitable for biodiesel. The technology will be compatible with and complementary to cellulosic ethanol producers, and it could potentially double the amount of biodiesel produced in the U.S. today. The 227 domestic ethanol plants range in size from less than 50 to more than 150 million gallons, and they have a total annual capacity of 15 billion gallons. Every gallon of ethanol also yields 1.9 pounds of soluble organics that must be evaporated or disposed. Xylome?s technology has the potential to convert half of this stream into biodiesel and to expand biodiesel production further with cellulosic feedstocks. By converting a larger fraction of the soluble cellulosic and hemicellulosic sugars along with fermentation byproducts, Xylome will increase the efficiency of existing ethanol plants and increase biofuel production.The objectives of this Phase II research are to increase the rates of production, modification and release of fatty acids from non-conventional lipogenic yeast. Fatty acids have much higher energy density than ethanol, but similar specific energy yields. Fermentation of organics to lipids can potentially occur with efficiencies equivalent to ethanol production. Lipids normally accumulate under nitrogen limiting conditions after replication has stopped. They are not excreted from the cells so recovery does not require distillation. In Phase I, Xylome scientists identified and over expressed genes that increase lipid accumulation by 1.2- to 2-fold under high nitrogen conditions. In Phase II, they will use mating, selection, screening and evolutionary adaptation to combine the best of these modifications. Xylome scientists have also targeted additional genes to modify and release fatty acids from the cell. Xylome plans to optimize lipid production both from a cellular level with metabolic engineering and from an engineering perspective through bioprocess design and cultivation conditions. Xylome will also engineer cells to use rapidly the complex mixture of soluble oligosaccharides, hemicellulosic sugars and fermentation byproducts. By applying advanced molecular techniques and synthetic biology, Xylome will open up new opportunities for sustainable biofuel production.
这个小企业创新研究第二阶段项目的更广泛的影响/商业潜力是经济地生产下一代可持续,可再生,清洁燃烧,高能量密度,运输生物燃料。一旦成功开发,拟议的技术将使现有的生物燃料生产商能够降低成本,同时增加其副产品的价值和多样性。它将把他们的工业废物转化为适合生物柴油的脂肪酸。该技术将与纤维素乙醇生产商兼容并互补,它可能使美国目前生产的生物柴油数量翻一番。227家国内乙醇工厂的规模从不到50万加仑到超过1.5亿加仑不等,它们的年总产能为150亿加仑。每加仑乙醇还产生1.9磅必须蒸发或处理的可溶性有机物。Xylome?的技术有潜力将一半的这种流转化为生物柴油,并进一步扩大生物柴油生产与纤维素原料。通过转化更大比例的可溶性纤维素和半纤维素糖沿着发酵副产物,Xylome将提高现有乙醇工厂的效率,并增加生物燃料产量。这项第二阶段研究的目标是提高非传统产脂酵母的脂肪酸生产、修饰和释放速率。 脂肪酸具有比乙醇高得多的能量密度,但相似的比能量产率。有机物发酵成脂质可能以与乙醇生产相当的效率发生。脂质通常在复制停止后在氮限制条件下积累。它们不会从细胞中排出,因此回收不需要蒸馏。在第一阶段,Xylome科学家发现并过度表达了在高氮条件下增加脂质积累1.2至2倍的基因。在第二阶段,他们将使用交配、选择、筛选和进化适应来联合收割机结合这些修改中的最佳修改。Xylome科学家还瞄准了其他基因来修饰和释放细胞中的脂肪酸。Xylome计划通过生物工艺设计和培养条件从细胞水平和代谢工程以及工程角度优化脂质生产。Xylome还将改造细胞,使其快速利用可溶性低聚糖、半纤维素糖和发酵副产物的复杂混合物。通过应用先进的分子技术和合成生物学,Xylome将为可持续生物燃料生产开辟新的机会。
项目成果
期刊论文数量(0)
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Thomas Jeffries其他文献
Microbiome impacts surgical outcomes– comparison of gut microbiome dysbiosis in patients undergoing lumbar microdiscectomy: results from the MISO pilot study
- DOI:
10.1007/s00586-025-09046-x - 发表时间:
2025-06-27 - 期刊:
- 影响因子:2.700
- 作者:
Stone Sima;Thomas Jeffries;Alisha Sial;Suhani Sharma;Robert De La Lande;Neha Chopra;Saeed Kohan;Peter Khong;Ashish Diwan - 通讯作者:
Ashish Diwan
Thomas Jeffries的其他文献
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{{ truncateString('Thomas Jeffries', 18)}}的其他基金
SBIR Phase I: Novel Bioprocess for Lipid Production from Industrial Byproducts
SBIR 第一阶段:利用工业副产品生产脂质的新型生物工艺
- 批准号:
1520485 - 财政年份:2015
- 资助金额:
$ 75万 - 项目类别:
Standard Grant
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