Bacterial pigments are potential substitute of chemical photosensitizer for dye-sensitized solar cell (DSSC) due to its non-toxic property and cost-effective production from microbial fermentation. Serratia nematodiphila YO1 was isolated from waterfall in Malaysia and identified using 16S ribosomal RNA. Characterization of the red pigment produced by the bacteria has confirmed the pigment as prodigiosin. Prodigiosin was produced from the fermentation of the bacteria in the presence of different oil substrates. Palm oil exhibited the best performance of cell growth and equivalent prodigiosin yield compared to olive oil and peanut oil. Prodigiosin produced with palm oil supplementation was 93 mg/l compared to 7.8 mg/l produced without supplementation, which recorded 11.9 times improvement. Specific growth rate of the cells improved 1.4 times when palm oil was supplemented in the medium. The prodigiosin pigment produced showed comparable performance as a DSSC sensitizer by displaying an open circuit voltage of 336.1 mV and a maximum short circuit current of 0.098 mV/cm2. This study stands a novelty in proving that the production of prodigiosin is favorable in the presence of palm oil substrate with high saturated fat content, which has not been studied before. This is also among the first bacterial prodigiosin tested as photosensitizer for DSSC application.

中文翻译：

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补充油底物对染料敏化太阳能电池沙门氏菌产生的prodigiosin的影响。

细菌颜料由于其无毒特性和微生物发酵的成本效益高，因此可以替代化学光敏剂用作染料敏化太阳能电池（DSSC）。从马来西亚的瀑布中分离出沙雷氏菌线虫YO1，并使用16S核糖体RNA进行鉴定。细菌产生的红色色素的鉴定已确认该色素为prodigiosin。在存在不同油底物的情况下，由细菌发酵产生了Prodigiosin。与橄榄油和花生油相比，棕榈油表现出最佳的细胞生长性能和当量的prodigiosin产量。补充棕榈油后产生的Prodigiosin为93毫克/升，相比之下不补充时产生的7.8毫克/升，其记录提高了11.9倍。细胞的比生长速度提高了1。在培养基中补充棕榈油的4倍。通过显示336.1 mV的开路电压和0.098 mV / cm2的最大短路电流，所生产的普罗迪高辛颜料显示出与DSSC敏化剂相当的性能。这项研究证明了在存在具有高饱和脂肪含量的棕榈油底物的情况下，prodigiosin的生产是有利的，这是前所未有的。这也是最早被测试为DSSC应用的光敏剂的细菌prodigiosin。这项研究证明了在存在具有高饱和脂肪含量的棕榈油底物的情况下，prodigiosin的生产是有利的，这是前所未有的。这也是最早被测试为DSSC应用的光敏剂的细菌prodigiosin。这项研究证明了在存在具有高饱和脂肪含量的棕榈油底物的情况下，prodigiosin的生产是有利的，这是前所未有的。这也是最早被测试为DSSC应用的光敏剂的细菌prodigiosin。