Abdelnasser Salah Shebl Ibrahim
Department of Chemistry, University of Prince Edward Island, 550 University Avenue, C1A4P3, PEI, Canada
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How to cite this article
Abdelnasser Salah Shebl Ibrahim, 2008. Production of Carotenoids by a Newly Isolated Marine Micrococcus sp. Biotechnology, 7: 469-474.
DOI: 10.3923/biotech.2008.469.474
URL: https://scialert.net/abstract/?doi=biotech.2008.469.474
DOI: 10.3923/biotech.2008.469.474
URL: https://scialert.net/abstract/?doi=biotech.2008.469.474
Marit H Stafsnes Reply
What kind of unit is mg g L-1? It should represent mg carotenoid per litre divided by g cell mass per litre and thereby mg/g, or?
I would have liked to see the MS data for the three peaks. Decaprenoxanthin has molecular mass 704, not 706 (in the text it is written decaproxanthin)
Micrococcus luteus does not produce decaprenoxanthin as written in the text, but this does rather Corynebacterium glutamicum,. The species has been identified to Micrococcus sp, another name of C.glutamicum is Micrococcus glutamicus (Kinoshita et al. 1958). Could it be a C.glutamicum?
The chapter in the introduction starting with From "The most important biological functions..." and ending with "The value in medical and pharmaceuticals has triggered..." is a direct copy of a paper by Wang et al, 2007 Progress in molecular breeding and metabolic engineering of biosynthesis pathways of C30, C35, C40, C45, C50 carotenoids. In Biotechnology Advances 25 (2007) 211 - 222
Auther Reply
Hi Marit
Micrococcus luteus is known to produce decaprenoxanthin and it has been published with its former name as Sarcina lutea, I will provide you with the reference soon, but if you make good search, you will find it easily
Regarding the introduction sentences, I think the auther used reference and it is something normal
Regarding the unit and calculation, it is right just read it carefully
Thanks for your interest
The Auther
Marit Reply
Hi Auther. M. luteus is known to produce sarcinaxanthin (from the former name Sarcina lutea)and is an isomer of decaprenoxanthin. The paper referred to (Sandmann, 2001)which is claimed to write about the decaprenoxanthin biosynthesis pathway by M luteus does not mention Micrococcus nor decaprenoxanthin. I am looking forward to receive the references you mention. Thank you.
Masoud Hamidi Reply
Hi Dear Abdelnasser Salah Shebl Ibrahim,
Is it possibel to provide the formula was used to calculate total carotenoid content?
Best regards
M.Hamidi