School of Life Sciences, North Maharashtra University, P.O. Box No. 80, Umavinagar, Jalgaon 425001, Maharashtra, India; Department of Microbiology and Molecular Genetics, Henry Bellmon Research Center, Oklahoma State University, Stillwater, OK 74078, USA.
School of Life Sciences, North Maharashtra University, P.O. Box No. 80, Umavinagar, Jalgaon 425001, Maharashtra, India.
Bioresour Technol. 2016 Dec;221:498-509. doi: 10.1016/j.biortech.2016.09.079. Epub 2016 Sep 20.
The present study reports a process wherein CO is captured in the form of bicarbonates using calcium oxide and photosynthetically fixed into biomass. Microalgal cultures viz. Chlorella sorokiniana PAZ and Arthrospira sp. VSJ were grown in the medium containing bicarbonates. The rate of bicarbonate utilization by C. sorokiniana PAZ was higher when CO trapped in the presence of 2.67mM calcium oxide than in the presence of 10mM sodium hydroxide and with direct addition of 10mM sodium bicarbonate. For Arthrospira sp. VSJ the bicarbonate utilization was 92.37%, 88.34% and 59.23% for the medium containing CaO, NaOH and NaHCO, respectively. Illumination of photosynthetically active radiation (PAR)+ultraviolet A radiation (UVA) enhanced the yield of C. sorokiniana PAZ and Arthrospira sp. VSJ by 1.3 and 1.8 folds, respectively. FTIR analysis revealed elevation in the biosynthesis of specific metabolites in response to the UVA exposure.
本研究报告了一种使用氧化钙将 CO 捕获为碳酸氢盐并通过光合作用将其固定到生物质中的方法。在含有碳酸氢盐的培养基中培养微藻培养物,例如 Chlorella sorokiniana PAZ 和 Arthrospira sp. VSJ。当 CO 在存在 2.67mM 氧化钙的情况下被捕获时,C. sorokiniana PAZ 利用碳酸氢盐的速度比在存在 10mM 氢氧化钠和直接添加 10mM 碳酸氢钠的情况下更高。对于 Arthrospira sp. VSJ,分别含有 CaO、NaOH 和 NaHCO 的培养基中碳酸氢盐的利用率为 92.37%、88.34%和 59.23%。光合有效辐射 (PAR)+紫外线 A 辐射 (UVA) 的照射使 C. sorokiniana PAZ 和 Arthrospira sp. VSJ 的产量分别提高了 1.3 倍和 1.8 倍。傅里叶变换红外 (FTIR) 分析表明,特定代谢物的生物合成在响应 UVA 暴露时增加。