Department of Chemical and Environmental Engineering, Graduate School of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
J Biosci Bioeng. 2012 Nov;114(5):521-5. doi: 10.1016/j.jbiosc.2012.05.021. Epub 2012 Jul 12.
It was revealed that the dry powder yeast extract (YE) has the ability to act as a biocatalyst as well as a mediator in a biofuel cell. The yeast extract, from Nihon Pharmaceutical Co., Ltd., was used as a biocatalyst in an open air cathode biofuel cell containing phosphate buffer for glucose oxidation. The anode medium with only the YE showed an immediate activity by producing a current and delivering power depending on its concentration. By adding glucose to the anode medium, the anode potential decreased with time to -0.2 V vs. normal hydrogen electrode (NHE), and produced a higher power compared to that without glucose. The biofuel cell produced an open circuit voltage (OCV) as high as 1 V.
研究表明，干粉酵母提取物（YE）在生物燃料电池中不仅可以作为生物催化剂，还可以作为介体。该酵母提取物由日本制药有限公司提供，用作含有磷酸盐缓冲液的开放式空气阴极生物燃料电池中的生物催化剂，用于葡萄糖氧化。在阳极介质中仅添加 YE 会根据其浓度立即产生电流和输出功率，表现出活性。向阳极介质中添加葡萄糖后，阳极电位随时间降低至相对于标准氢电极（NHE）的-0.2 V，并且产生的功率比没有葡萄糖时更高。生物燃料电池产生的开路电压（OCV）高达 1 V。
