NDLI: Identification of Newly Zeaxanthin-Producing Bacteria Isolated from Sponges in the Gulf of Thailand and their Zeaxanthin Production

Content Provider	Springer Nature Link
Author	Thawornwiriyanun, Patcharee Tanasupawat, Somboon Dechsakulwatana, Chutiwan Techkarnjanaruk, Somkiet Suntornsuk, Worapot
Copyright Year	2012
Abstract	Sponge-associated bacteria have been found to produce a variety of bioactive compounds including natural pigments. Here, we report the molecular identification of zeaxanthin-producing sponge-associated bacteria isolated from sponges in the Gulf of Thailand and the effect of environmental factors on zeaxanthin production from a bacterium. Three colorful sponge-associated bacteria (CHOB06-6, KODA19-6, and MAKB08-4) were identified based on the 16S rDNA profile. The 16S rDNA sequence-based analyses revealed that CHOB 06-6 and MAKB 08-4 were the closest relatives to Sphingomonas phyllosphaerae FA2$^{T}$, and KODA19-6 was a relative of Shingomonas (Blastomonas) natatoria DSM 3183$^{T}$. After all bacteria were cultivated in a modified Zobell medium, S. natatoria KODA19-6 was found to produce the highest zeaxanthin at 0.62 mg/l. pH and temperature considerably affected its zeaxanthin production. Its optimal condition for zeaxanthin production was found at a pH of 7 and 30 °C. The bacterium had a maximum specific growth rate (μ $_{max}$) of 0.06 1/h with zeaxanthin productivity (Q $_{p}$) of 6.27 μg/l·h. Therefore, this newly zeaxanthin-producing bacterium has a potential to produce natural zeaxanthin for the food, feed, pharmaceutical, and cosmetic industries.
Starting Page	2357
Ending Page	2368
Page Count	12
File Format	PDF
ISSN	02732289
Journal	Applied Biochemistry and Biotechnology
Volume Number	167
Issue Number	8
e-ISSN	15590291
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-06-20
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Identification Zeaxanthin Sponge-associated bacteria Production Sphingomonas phyllosphaerae Sphingomonas natatoria Biochemistry Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Environmental Engineering Biochemistry Bioengineering Applied Microbiology and Biotechnology Biotechnology

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