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2 results on '"Venil, Chidambaram Kulandaisamy"'

1. Isolation and characterization of flexirubin type pigment from Chryseobacterium sp. UTM-3T.

Author

Venil, Chidambaram Kulandaisamy, Zakaria, Zainul Akmar, Usha, Rajamanickam, and Ahmad, Wan Azlina

Subjects
ULTRAVIOLET radiation, AQUEOUS solutions, PHYSICAL & theoretical chemistry, ORGANIC compounds, PIGMENTS, BOTANICAL chemistry
Abstract

The pigment from Chryseobacterium sp. UTM-3 T was isolated and characterized with the aim to develop a natural colorant for application in bio-pigment production. The pigment was characterized by UV–Vis, FTIR, NMR and LC–MS which confirms that it belongs to flexirubin type of pigment. The physical and chemical properties revealed that the pigment has similar properties as most of natural pigment. It was insoluble in water and most organic solvents, but soluble only in acetone and alkaline aqueous and DMSO. The pigment was stable in UV, sunlight and in dark conditions, stable in the range of 25–100 °C. L ⁎ , a ⁎ and b ⁎ values of the CIELAB color system for the pigments were measured and hue, chroma were then calculated. The color of the pigment was in the range of yellow. This is the first report on the characterization of pigment from Chryseobacterium sp. [ABSTRACT FROM AUTHOR]

Published
2014
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2. Characterization of Dietzia marisAURCCBT01 from oil-contaminated soil for biodegradation of crude oil

Author

Venil, Chidambaram Kulandaisamy, Malathi, Mahalingam, and Devi, Ponnuswamy Renuka

Abstract

A bacterial strain was isolated from an oil-contaminated site and on its’ further characterization, exhibited the potential of synthesising metabolites and the ability to degrade crude oil. Its’ morphological, biochemical and 16S rRNA analysis suggested that the bacterium belongs to Dietzia marisAURCCBT01. This strain rapidly grew in the medium supplemented with n-alkanes C14, C18, C20, C28 and C32 utilizing them as a sole carbon source and produced a maximum canthaxanthin pigment of 971.37 µg/L in the n-C14 supplemented medium and produced the lowest pigment yield of 389.48 µg/L in the n-C-32 supplemented medium. Moreover, the strain effectively degraded 91.87% of crude oil in 7 days. The emulsification activity of the strain was 25% with the highest cell surface hydrophobicity (70.26%) and it showed a decrease in surface tension, indicating that the biosurfactant production lowers the surface tension. This is the first report on the characterization of the strain, Dietzia marisAURCCBT01 and its’ novelty of alkane degradation and simultaneous production of canthaxanthin pigment.

Published
2021
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