RT Journal Article
T1 Identification, biochemical composition and phycobiliproteins production of Chroococcidiopsis sp. from arid environment
A1 Montero Lobato, Zaida
A1 Fuentes Cordero, Juan Luis
A1 Garbayo Nores, Inés
A1 Ascaso, Carmen
A1 Wierzchos, Jacek
A1 Vílchez Lobato, Carlos
A1 Vega Piqueres, José María
AB Molecular and microscopic studies were performed to identify Chroococcidiopsis sp., an endolithic cyanobacterium, isolated from gypsum rocks of Atacama Desert (Chile). It was adapted to grow in mineral liquid medium, with 9mM nitrate, bubbled with CO2-enriched air (2.5 % v/v), and continuously illuminated with a white light of 70μmol photonsm–2s–1. The obtained biomass (productivity of 0.21gL–1d–1) had a C/N ratio of 6.67, and it contained carbohydrates (45.40 % of dry weight), proteins (36.72 %), lipids (5.60 %) nucleic acids (3.90 %) and ashes (8.28 %). The lipid fraction was particularly rich in palmitic (29.86 % of total fatty acids), linoleic (18.20 %), palmitoleic (12.75 %), linolenic (10.92 %), stearic (9.64 %) and capric acid (6.29 %). Chroococcidiopsis sp. accumulated phycobiliproteins in a light-dependent process and produced 204mgg–1, under incident light of 10 μmol photons·m–2·s–1, with a relative abundance of 40.9 % for phycocyanin, 23.3 % for phycoerythrin, and 35.8 % for allophycocyanin. The biomass from this cyanobacterium can be a good source of these pigments, especially APC (maximum of 95mgg dw−1), which are of interest for pharmacological, cosmetic, and food industries
PB Elsevier
SN 1359-5113
SN 1873-3298 (electrónico)
YR 2020
FD 2020-07
LK https://hdl.handle.net/10272/23588
UL https://hdl.handle.net/10272/23588
LA eng
NO Montero-Lobato, Z., Fuentes, J. L., Garbayo, I., Ascaso, C., Wierzchos, J., Vega, J. M., & Vílchez, C. (2020). Identification, biochemical composition and phycobiliproteins production of Chroococcidiopsis sp. from arid environment. In Process Biochemistry (Vol. 97, pp. 112–120). Elsevier BV. https://doi.org/10.1016/j.procbio.2020.07.005
NO This work was funded by MCIU/AEI (Spain) and FEDER (UE) (grant reference PGC2018–094076-B-I00) and by a PhD-Grant from the R&D Plan of the University of Huelva, Spain, for Zaida Montero
DS Repositorio Institucional de la Universidad de Huelva
RD 14 jul 2026