Different light intensity on Messastrum gracile growth under phototrophic cultivation in laboratory.

IF 2.1 4区 生物学 Q3 MICROBIOLOGY
Brazilian Journal of Microbiology Pub Date : 2024-09-01 Epub Date: 2024-06-06 DOI:10.1007/s42770-024-01389-9
Lúcia Helena Sipaúba-Tavares, Jesaias Ismael da Costa, Débora Cristina Fenerick
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引用次数: 0

Abstract

The present research evaluates the effects of three different lighting intensities, 60 (control), 30 and 120 µmol photons m- 2 s- 1 on Messastrum gracile growth. The observations indicated that a light intensity of 60 µmol photons m- 2 s- 1 resulted in higher cell density during experimental period. The light intensity of 120 µmol photons m- 2 s- 1 had a strong negative impact on M. gracile growth. Parameters such as lipid and protein content, cell density, chlorophyll-a and biomass were lower compared to the other light intensities. On the 14th and 21st growth days, the biomass, lipid and protein content were higher at 60 µmol photons m- 2 s- 1 with 800 mg L- 1, 5.7% and 34.4% biomass dry weight, respectively. The study also highlighted the economic aspects of M. gracile cultivation. The light intensities 30 and 60 µmol photons m- 2 s- 1 were found to be more advantageous than 120 µmol photons m- 2 s- 1 in terms of biomass, unit cost, lipid and protein content. Based on these findings, it was concluded that the light intensities of 30 and 60 µmol photons m- 2 s- 1 are more viable for M. gracile cultivation in laboratory under conditions used.

Abstract Image

不同光照强度对实验室光营养栽培中 Messastrum gracile 生长的影响
本研究评估了 60 微摩尔光子 m- 2 s- 1(对照)、30 微摩尔光子 m- 2 s- 1 和 120 微摩尔光子 m- 2 s- 1 三种不同光照强度对 Messastrum gracile 生长的影响。观察结果表明,光照强度为 60 µmol photons m- 2 s- 1 时,实验期间的细胞密度较高。光照强度为 120 µmol photons m- 2 s- 1 时,对蟛蜞菊的生长有很大的负面影响。与其他光照强度相比,脂质和蛋白质含量、细胞密度、叶绿素-a 和生物量等参数都较低。在第 14 和 21 个生长日,60 µmol photons m- 2 s- 1 的生物量、脂质和蛋白质含量较高,分别为 800 mg L- 1、5.7% 和 34.4% 的生物量干重。该研究还强调了种植蟛蜞菊的经济性。研究发现,就生物量、单位成本、脂质和蛋白质含量而言,30 和 60 µmol photons m- 2 s- 1 光强比 120 µmol photons m- 2 s- 1 光强更有优势。基于这些研究结果,得出的结论是,在实验室条件下,30 和 60 µmol 光子 m- 2 s- 1 的光照强度更适于鲻鱼的培养。
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来源期刊
Brazilian Journal of Microbiology
Brazilian Journal of Microbiology 生物-微生物学
CiteScore
4.10
自引率
4.50%
发文量
216
审稿时长
1.0 months
期刊介绍: The Brazilian Journal of Microbiology is an international peer reviewed journal that covers a wide-range of research on fundamental and applied aspects of microbiology. The journal considers for publication original research articles, short communications, reviews, and letters to the editor, that may be submitted to the following sections: Biotechnology and Industrial Microbiology, Food Microbiology, Bacterial and Fungal Pathogenesis, Clinical Microbiology, Environmental Microbiology, Veterinary Microbiology, Fungal and Bacterial Physiology, Bacterial, Fungal and Virus Molecular Biology, Education in Microbiology. For more details on each section, please check out the instructions for authors. The journal is the official publication of the Brazilian Society of Microbiology and currently publishes 4 issues per year.
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