Enhanced production of bioactive compounds from marine microalgae<i> Tetraselmis</i><i> tetrathele</i> under salinity and light stresses: A two-stage cultivation strategy

(2023) Enhanced production of bioactive compounds from marine microalgae<i> Tetraselmis</i><i> tetrathele</i> under salinity and light stresses: A two-stage cultivation strategy. Bioresource Technology. p. 9. ISSN 0960-8524

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Abstract

This study leveraged the salinity and light intensity stresses during the stationary phase for enhancing the pigment contents and antioxidant capacity of Tetraselmis tetrathele. The highest pigments content was obtained in cultures under salinity stress (40 g L-1) illuminated using fluorescent light. Furthermore, the best inhibitory concentration (IC50) for scavenging the 2, 2 & PRIME;-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals was found as 79.53 & mu;g mL-1 in ethanol extract and cultures under red LED light stress (300 & mu;mol m- 2 s- 1). The highest antioxidant capacity in a ferric-reducing antioxidant power (FRAP) assay (1,778.6 & mu;M Fe+2) was found in ethanol extract and cultures under salinity stress illuminated using fluorescent light. Maximum scavenging of the 2.2-diphenyl-1-picrylhydrazyl (DPPH) radical was found in ethyl acetate extracts under light and salinity stresses. These results indicated that abiotic stresses could enhance the pigment and antioxidant components of T. tetrathele, which are value-added compounds in the pharmaceutical, cosmetic, and food industries.

Item Type: Article
Keywords: Tetraselmis tetrathele Wastewater treatment Abiotic stress Pigments Antioxidant capacity antioxidant activity lipid production waste-water fatty-acid emitting-diodes growth astaxanthin efficiency nitrogen biomass Agriculture Biotechnology & Applied Microbiology Energy & Fuels
Page Range: p. 9
Journal or Publication Title: Bioresource Technology
Journal Index: ISI
Volume: 376
Identification Number: https://doi.org/10.1016/j.biortech.2023.128899
ISSN: 0960-8524
Depositing User: خانم ناهید ضیائی
URI: http://eprints.mui.ac.ir/id/eprint/25752

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