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Interactive effects of ceftriaxone and chitosan immobilization on the production of arachidonic acid by and the microbiome of the chlorophyte Lobosphaera spстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 февраля 2024 г.
- Авторы: Vasilieva S., Lukyanov A.A., Antipova C., Grigoriev T., Lobakova E., Chivkunova O., Scherbakov P., Zaytsev P., Gorelova O., Fedorenko T., Kochkin D., Solovchenko A.
- Журнал: International Journal of Molecular Sciences
- Том: 24
- Номер: 13
- Год издания: 2023
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Номер статьи: 10988
- DOI: 10.3390/ijms241310988
- Аннотация: Pharmaceuticals including antibiotics are among the hazardous micropollutants (HMP)of the environment. Incomplete degradation of the HMP leads to their persistence in water bodiescausing a plethora of deleterious effects. Conventional wastewater treatment cannot remove HMPcompletely and a promising alternative comprises biotechnologies based on microalgae. The use ofimmobilized microalgae in environmental biotechnology is advantageous since immobilized culturesallow the recycling of the microalgal cells, support higher cell densities, and boost tolerance of microalgae to stresses including HMP. Here, we report on a comparative study of HMP (exemplified bythe antibiotic ceftriaxone, CTA) removal by suspended and chitosan-immobilized cells of Lobosphaerasp. IPPAS C-2047 in flasks and in a column bioreactor. The removal of CTA added in the concentrationof 20 mg/L was as high as 65% (in the flasks) or 85% (in the bioreactor). The adsorption on thecarrier and abiotic oxidation were the main processes contributing 65–70% to the total CTA removal,while both suspended and immobilized cells took up 25–30% of CTA. Neither the immobilizationnor CTA affected the accumulation of arachidonic acid (ARA) by Lobosphaera sp. during bioreactortests but the subsequent nitrogen deprivation increased ARA accumulation 2.5 and 1.7 times inthe suspended and chitosan-immobilized microalgae, respectively. The study of the Lobosphaera sp.microbiome revealed that the immobilization of chitosan rather than the CTA exposure was the mainfactor displacing the taxonomic composition of the microbiome. The possibility and limitations ofthe use of chitosan-immobilized Lobosphaera sp. IPPAS C-2047 for HMP removal coupled with theproduction of valuable long-chain polyunsaturated fatty acids is discussed.
- Добавил в систему: Соловченко Алексей Евгеньевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 2023_Lobosphaera_IMMO-CTA_ijms-24-10988.pdf | 2,1 МБ | 24 августа 2023 [solovchenko] | |
| 2. | Полный текст | Interactive_Effects_of_Ceftriaxone_and_Chitosan_Immobilizat… | 983,5 КБ | 23 августа 2023 [elena.lobakova] |