Utilising light-emitting diodes of specific narrow wavelengths for the optimization and co-production of multiple high-value compounds in Porphyridium purpureum

被引：61

作者：

Coward, Thea ^{[1
]}

Fuentes-Grunewald, Claudio ^{[1
]}

Silkina, Alla ^{[2
]}

Oatley-Radcliffe, Darren L. ^{[3
]}

Llewellyn, Gareth ^{[4
]}

Lovitt, Robert W. ^{[1
]}

机构：

[1] Swansea Univ, Coll Engn, Ctr Complex Fluids Proc, Bay Campus, Swansea SA1 8EN, W Glam, Wales

[2] Swansea Univ, CSAR, Swansea SA2 8PP, W Glam, Wales

[3] Swansea Univ, Coll Engn, ESRI, Bay Campus, Swansea SA1 8EN, W Glam, Wales

[4] Swansea Univ, EPSRC UK Natl Mass Spectrometry Facil, Grove Bldg, Swansea SA2 8PP, W Glam, Wales

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 221卷

基金：

英国工程与自然科学研究理事会;

关键词：

Porphyridium; Phycobiliproteins; Fatty acids; Pigments; FTIR; Exopolysaccharides; TRANSFORM INFRARED-SPECTROSCOPY; RED MICROALGA; CRUENTUM; BIOMASS; PURIFICATION; INTENSITY; GROWTH; POLYSACCHARIDES; PHYCOERYTHRIN; PERSPECTIVES;

D O I：

10.1016/j.biortech.2016.09.093

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of specific narrow light-emitting diode (LED) wavelengths (red, green, blue) and a combination of LED wavelengths (red, green and blue - RGB) on biomass composition produced by Porphyridium purpureum is studied. Phycobiliprotein, fatty acids, exopolysaccharides, pigment content, and the main macromolecules composition were analysed to determine the effect of wavelength on multiple compounds of commercial interest. The results demonstrate that green light plays a significant role in the growth of rhodophyta, due to phycobiliproteins being able to harvest green wavelengths where chlorophyll pigments absorb poorly. However, under multi-chromatic LED wavelengths, P. purpureum biomass accumulated the highest yield of valuable products such as eicosapentaenoic acid (similar to 2.9% DW), zeaxanthin (similar to 586 mu g g(-1) DW), beta-carotene (397 mu g g(-1) DW), exopolysaccharides (2.05 g/L-1), and phycobiliproteins (similar to 4.8% DW). This increased accumulation is likely to be the combination of both photo-adaption and photo-protection, under the combined specific wavelengths employed. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：607 / 615

页数：9

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