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Characterization and Lipase Production of Micrococcus sp. L69 Isolated from Palm Oil-contaminated Soil

Authors: Sumarsih, Sri; Fatimah; Hadi, Sofijan; Adhiningsih, Ragil Tri; Prasetyo, Fakhrudin Eka;

Characterization and Lipase Production of Micrococcus sp. L69 Isolated from Palm Oil-contaminated Soil

Abstract

This research aims to characterise and study the lipase production of Micrococcus sp. L69 isolated from palm oil-contaminated soil. Lipase production was carried out by cultivating the bacteria in the medium containing vegetable oils. The lipase activity was determined by spectrophotometric method toward p-nitrophenyl palmitate as a substrate. The results of this research showed that the bacteria isolate L69 was a unique lipolytic bacteria. Based on sequence of 16S rRNA gene, the bacteria had low similarity level (≤ 93%) to sequences data listed in GenBank. Olive oil and coconut oil are good carbon sources for bacterial growth and lipase production. The highest lipase activity achieved at temperature of 50°C and pH 7.0. The addition of 7 mM Ca2+ and Fe++ enhanced the lipase activity for 1.95- and 2.26-fold, respectively.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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