Volume 46, Issue 3 e16306
ORIGINAL ARTICLE

A novel L-asparaginase from the symbiotic Enterobacter aerogenes isolated from Eucheuma sp.

Mashuri Masri

Corresponding Author

Mashuri Masri

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Correspondence

Mashuri Masri, Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, South Sulawesi, 92113, Indonesia.

Email: [email protected]

Contribution: Methodology, Resources, Supervision, Writing - original draft, Writing - review & editing

Search for more papers by this author
Fatmawati Nur

Fatmawati Nur

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Search for more papers by this author
Joko Widodo

Joko Widodo

Laboratory of Technology Department, STIKES Mega Rezky, Makassar, Indonesia

Contribution: Funding acquisition, Methodology, Validation, Writing - original draft

Search for more papers by this author
Ekafadly Jusuf

Ekafadly Jusuf

School of Management and Business (STIE) Amkop, Makassar, Indonesia

Search for more papers by this author
Windy Sahar

Windy Sahar

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Search for more papers by this author
Nurul Wahida

Nurul Wahida

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Contribution: Data curation, Resources, Writing - original draft

Search for more papers by this author
Risnawati Risnawati

Risnawati Risnawati

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Search for more papers by this author
Siti Nurbaya

Siti Nurbaya

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Contribution: Data curation, Resources

Search for more papers by this author
Tuti Asriani Asri

Tuti Asriani Asri

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Contribution: Conceptualization, Resources

Search for more papers by this author
Nurul Fadly

Nurul Fadly

Department of Biology, Faculty of Science and Technology, Alauddin State Islamic University, Makassar, Indonesia

Contribution: Conceptualization, Project administration

Search for more papers by this author
First published: 05 January 2022

Abstract

This study was aimed to purify and characterize the enzyme L-asparaginase from endophytic microorganisms of Eucheuma sp. in Puntondo Island, South Sulawesi, Indonesia. Research stages were ammonium sulfate precipitation, dialysis, and Sephadex G-75 gel filtration chromatography and Sephadex CMC-50 ion-exchange chromatography matrices. The result of test activities of ammonium sulfate fraction showed the highest range of 40%–60% the activity value of 6.71 IU/ml. The highest protein content was obtained on a 0%–20% fraction of 2.76 mg/ml. Temperature and pH assessments indicated that L-asparaginase had optimum activity at 37°C and pH 8, respectively. At the stage of dialysis, the highest protein content was 5.17 IU/ml in a 0%–20% fraction, and the highest enzyme activity was 1.23 IU/ml in a 20%–40% fraction. The results of gel filtration chromatography fractions G-75 were F5–F10, with a specific activity of 0.60 U/mg, 2.05 times higher purity level than the crude extract enzyme. The results of CMC-50 ion-exchange chromatography showed that F54 and F55 fractions had a specific activity of 106.97 and 295.38 U/mg, respectively, with a purity level of 366.34 and 1,011.57 times higher than the crude extract enzyme.

Novelty impact statement

Enterobacter aerogenes strain P5, an endophytic bacterium from Eucheuma sp., can produce pure L-asparaginase enzyme with a high specific activity applied in pharmaceuticals nutraceutical applications.

CONFLICT OF INTEREST

The authors declare that they have no conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.