Effect of gamma irradiation on growth and lipid productivity of green microalgae
Other Title(s)
تأثير التشعيع الجامى على نمو و إنتاجية الدهون في الطحالب الخضراء الدقيقة
Joint Authors
Musa, Marwah Muhammad
Abu stat, Mirfat Ali Muhammad
Abd al-Wahhab, Ahmad Muhammad Abd al-Hafiz
Source
Arab Universities Journal of Agricultural Sciences
Issue
Vol. 28, Issue 4 (31 Dec. 2020), pp.1105-1115, 11 p.
Publisher
Ain Shams University Faculty of Agriculture
Publication Date
2020-12-31
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Topics
Abstract EN
In the present research, the impact of exposing cultures of Chlamydomonas sp.
, Scenedesmus ecornis, and S.
communis microalgae to doses of gamma-rays (γ-ray) on their growth and the productivity of lipids was investigated.
Biomass concentration (g L-1) of each microalga was periodically determined after exposure to a range of gamma irradiation doses of 0, 25, 50, 75, 100, 200, and 300 Gray (Gy) through 20 days of cultivation period.
Then, the lipid content (% ) and lipid productivity (mg L-1 day-1) of each species were also evaluated.
Obtained results indicated that the S.
ecornis growth was positively affected by gamma irradiation, that the maximum concentration of biomass was obtained after 15 days at 1.32 g L-1 by the irradiated S.
ecornis exposed to a dose of 300 Gy while the non-irradiated culture achieved up to 1.10 g L-1.
On the other hand, the growths of Chlamydomonas sp.
and S.
communis were significantly reduced by gamma irradiation treatment also significant variations have also been observed in the levels of lipid content and lipid productivity of each microalga.
Irradiated S.
ecornis at a dose of 300 Gy exhibited the maximum of lipid content percentage and lipid productivity to reach 28.4% and 24.9 mg L-1 day-1, respectively.
Conversely, the best yields of lipid content and lipid productivity were achieved by a non-irradiated culture of S.
communis (24.4% and 16.6 mg L-1 day-1, respectively), compared to irradiated culture, regardless of irradiation dose.
The highest lipid content and lipid productivity gained by Chlamydomonas sp.
were obtained by the cultures exposed to 25 Gy, being 27.3% and 21.3 mg L-1 day-1, respectively.
In conclusion, results indicated that exposing cells of S.
ecornis and Chlamydomonas sp.
to specific doses of γ-rays has significantly stimulated lipid accumulation in cells, unlike S.
communis which was negatively affected by gamma irradiation.
American Psychological Association (APA)
Musa, Marwah Muhammad& Abu stat, Mirfat Ali Muhammad& Abd al-Wahhab, Ahmad Muhammad Abd al-Hafiz. 2020. Effect of gamma irradiation on growth and lipid productivity of green microalgae. Arab Universities Journal of Agricultural Sciences،Vol. 28, no. 4, pp.1105-1115.
https://search.emarefa.net/detail/BIM-1240544
Modern Language Association (MLA)
Musa, Marwah Muhammad…[et al.]. Effect of gamma irradiation on growth and lipid productivity of green microalgae. Arab Universities Journal of Agricultural Sciences Vol. 28, no. 4 (2020), pp.1105-1115.
https://search.emarefa.net/detail/BIM-1240544
American Medical Association (AMA)
Musa, Marwah Muhammad& Abu stat, Mirfat Ali Muhammad& Abd al-Wahhab, Ahmad Muhammad Abd al-Hafiz. Effect of gamma irradiation on growth and lipid productivity of green microalgae. Arab Universities Journal of Agricultural Sciences. 2020. Vol. 28, no. 4, pp.1105-1115.
https://search.emarefa.net/detail/BIM-1240544
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1240544