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المؤلفSchipper, Kira
المؤلفDas, Probir
المؤلفAl Muraikhi, Mariam
المؤلفAbdulQuadir, Mohammed
المؤلفThaher, Mahmoud Ibrahim
المؤلفAl Jabri, Hareb Mohammed S.J.
المؤلفWijffels, René H.
المؤلفBarbosa, Maria J.
تاريخ الإتاحة2021-11-10T05:27:07Z
تاريخ النشر2021-06-01
اسم المنشورBiotechnology and Bioengineering
المعرّفhttp://dx.doi.org/10.1002/bit.27750
الاقتباسSchipper, K., Das, P., Al Muraikhi, M., AbdulQuadir, M., Thaher, M. I., Al Jabri, H. M. S. J., Wijffels, R. H., & Barbosa, M. J. (2021). Outdoor scale-up of Leptolyngbya sp.: Effect of light intensity and inoculum volume on photoinhibition and oxidation. Biotechnology and Bioengineering. 118, 2368– 2379. https://doi.org/10.1002/bit.27750
الرقم المعياري الدولي للكتاب0006-3592
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85103235846&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/24907
الملخصThe effect of light intensity and inoculum volume on the occurrence of photooxidation for Leptolyngbya sp. QUCCCM 56 was investigated, to facilitate the transition from small-scale laboratory experiments to large-scale outdoor cultivation. Indoor, the strain was capable of growing at light intensities of up to 5600 µmol photons/m2/s, at inoculation densities as low as 0.1 g/L (10% inoculation volume vol/vol). Levels of chlorophyll and phycocyanin showed a significant decrease within the first 24 h, indicating some level of photooxidation, however, both were able to recover within 72 h. When cultivated under outdoor conditions in Qatar during summer, with average peak light intensities 1981 ± 41 μmol photons/m2/s, the strain had difficulties growing. The culture recovered after an initial adaptation period, and clear morphological differences were observed, such as an increase in trichome length, as well as coiling of multiple trichomes in tightly packed strands. It was hypothesized that the morphological changes were induced by UV-radiation as an adaptation mechanism for increased self-shading. Furthermore, the presence of contaminating ciliates could have also affected the outdoor culture. Both UV and contaminants are generally not simulated under laboratory environments, causing a mismatch between indoor optimizations and outdoor realizations.
راعي المشروعThe authors would like to thank Shuiab Utah, Ashraf Eroth, Maharoof Eroth, Ghamza Al Ghazal, Mariam Al Emadi, Filippo Fortunati, Touria Bounnit, and the QDVC team for their support. This study was sponsored by QDVC and Qatar University [Project: QUEX-CAS-QDVC-14/15-7].
اللغةen
الناشرWiley
الموضوعcyanobacteria
light intensity
outdoor cultivation
photoinhibition
phycocyanin
العنوانOutdoor scale-up of Leptolyngbya sp.: Effect of light intensity and inoculum volume on photoinhibition and -oxidation
النوعArticle
رقم العدد6
رقم المجلد118
ESSN1097-0290
dc.accessType Open Access


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