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@article{1672104,
author = {Mylenko, Mykola and Vu, Dai Long and Kuta, Jan and Ranglova, Karolina and Kubáč, David and Lakatos, Gergely and Grivalsky, Tomas and Caporgno, Martin Pablo and Manoel, Joao Artur Camara and Kopecky, Jiri and Masojídek, Jiří and Hrouzek, Pavel},
article_location = {Washington, D.C.},
article_number = {6},
doi = {http://dx.doi.org/10.1021/acs.jafc.9b06196},
keywords = {Chlorella; microalgae; selenium; selenomethionine; selenocysteine; methylselenocysteine; phototrophic cultivation; heterotrophic cultivation},
language = {eng},
issn = {0021-8561},
journal = {Journal of Agricultural and Food Chemistry},
title = {Selenium Incorporation to Amino Acids in Chlorella Cultures Grown in Phototrophic and Heterotrophic Regimes},
url = {https://pubs.acs.org/doi/10.1021/acs.jafc.9b06196},
volume = {68},
year = {2020}
}
TY - JOUR
ID - 1672104
AU - Mylenko, Mykola - Vu, Dai Long - Kuta, Jan - Ranglova, Karolina - Kubáč, David - Lakatos, Gergely - Grivalsky, Tomas - Caporgno, Martin Pablo - Manoel, Joao Artur Camara - Kopecky, Jiri - Masojídek, Jiří - Hrouzek, Pavel
PY - 2020
TI - Selenium Incorporation to Amino Acids in Chlorella Cultures Grown in Phototrophic and Heterotrophic Regimes
JF - Journal of Agricultural and Food Chemistry
VL - 68
IS - 6
SP - 1654-1665
EP - 1654-1665
PB - American Chemical Society
SN - 00218561
KW - Chlorella
KW - microalgae
KW - selenium
KW - selenomethionine
KW - selenocysteine
KW - methylselenocysteine
KW - phototrophic cultivation
KW - heterotrophic cultivation
UR - https://pubs.acs.org/doi/10.1021/acs.jafc.9b06196
L2 - https://pubs.acs.org/doi/10.1021/acs.jafc.9b06196
N2 - Microalgae accumulate bioavailable selenium-containing amino acids (Se-AAs), and these are useful as a food supplement. While this accumulation has been studied in phototrophic algal cultures, little data exists for heterotrophic cultures. We have determined the Se-AAs content, selenium/sulfur (Se/S) substitution rates, and overall Se accumulation balance in photo-and heterotrophic Chlorella cultures. Laboratory trials revealed that heterotrophic cultures tolerate Se doses, similar to 8-fold higher compared to phototrophic cultures, resulting in a similar to 2-3-fold higher Se-AAs content. In large-scale experiments, both cultivation regimes provided comparable Se-AAs content. Outdoor phototrophic cultures accumulated up to 400 mu g g(-1) of total Se-AAs and exhibited a high level of Se/S substitution (5-10%) with 30-60% organic/total Se embedded in the biomass. A slightly higher content of Se-AAs and ratio of Se/S substitution was obtained for a heterotrophic culture in pilot-scale fermentors. The data presented here shows that heterotrophic Chlorella cultures provide an alternative for Se-enriched biomass production and provides information on Se-AAs content and speciation in different cultivation regimes.
ER -
MYLENKO, Mykola, Dai Long VU, Jan KUTA, Karolina RANGLOVA, David KUBÁČ, Gergely LAKATOS, Tomas GRIVALSKY, Martin Pablo CAPORGNO, Joao Artur Camara MANOEL, Jiri KOPECKY, Jiří MASOJÍDEK a Pavel HROUZEK. Selenium Incorporation to Amino Acids in Chlorella Cultures Grown in Phototrophic and Heterotrophic Regimes. \textit{Journal of Agricultural and Food Chemistry}. Washington, D.C.: American Chemical Society, roč.~68, č.~6, s.~1654-1665. ISSN~0021-8561. doi:10.1021/acs.jafc.9b06196. 2020.
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