16465

In vitro Degradation of Extracted Cassava Linamarin by Bacillus Species Isolated from cassava wastewater

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Last updated: 03 Jan 2025

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Abstract

Linamarin is the most abundant cyanoglucoside present in cassava cells and may generate the equivalent amount of hydrocyanic acid. This study was aimed to assess degradative capacities of Bacillus pumilus strain WOB3 and WOB7on linamarin. The test organisms for linamarase activity were identified on the basis of phenotype, biochemical properties and 16S rDNA gene sequencing as: Bacillus pumilus strain WOB3 KX774195 and Bacillus pumilus strain WOB7 KX774196.  Growth studies showed that the strains grew in all the substrates tested. The doubling times of Bacillus pumilus strain WOB3 and Bacillus pumilus strain WOB7 were 8.25 d and 7.53 d on cassava effluent, 6.30 dand 5.78 d on supplemented cassava effluent, 8.66 dand 9.90 d on waste leachate and 6.30 d and 9.24 d on supplemented waste leachate respectively; with specific growth rates of 0.084 d-1  and 0.092 d-1  on cassava effluent, 0.11 d-1  and 0.12 d-1 on supplemented cassava effluent, 0.080 d-1 and 0.070 d-1 on waste leachate and 0.11 d-1 and 0.075 d-1 on supplemented waste leachate respectively. High-performance liquid chromatographic analysis studies revealed that linamarin degradation by the strains followed a linamarase pathway involving CO2 and HCN as metabolic intermediates. Based on HPLC analysis, linamarin residual concentration at day 12 by the strains WOB3 and WOB7 was 26.73 mgL-1(19.79 %) and 29.79 mgL-1 (21.92 %). These novel features make the bacteria suitable candidates for in-situ application on sites contaminated with cassava processing wastes.

DOI

10.21608/eajbsg.2017.16465

Keywords

Bacillus pumilus, biodegradation, intermediates, Linamarase, Bacterial species, Cassava wastewater

Authors

First Name

Ogunyemi

Last Name

K.

MiddleName

A.

Affiliation

Department of Microbiology, University of Lagos, Akoka, Lagos-Nigeria

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First Name

Samuel

Last Name

A.

MiddleName

T.

Affiliation

Department of Biochemistry, College of Medicine, University of Lagos, Idi-Araba, Lagos-Nigeria

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First Name

Buraimoh

Last Name

M.

MiddleName

O.

Affiliation

Department of Microbiology, University of Lagos, Akoka, Lagos-Nigeria

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First Name

Amund

Last Name

O.

MiddleName

O.

Affiliation

Department of Microbiology, University of Lagos, Akoka, Lagos-Nigeria

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First Name

Ilori

Last Name

O.

MiddleName

M.

Affiliation

Department of Microbiology, University of Lagos, Akoka, Lagos-Nigeria

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First Name

Alagbada

Last Name

C.

MiddleName

B.

Affiliation

Department of Chemical Sciences, Yaba College of Technology, Yaba, Lagos-Nigeria

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First Name

Olumuyiwa

Last Name

O.

MiddleName

E.

Affiliation

Department of Biological Sciences, College of Natural and Applied Sciences, Bells University of Technology, Ota, Ogun- Nigeria

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First Name

Odetunde

Last Name

K.

MiddleName

S.

Affiliation

Department of Science Laboratory Technology, Microbiology Unit, Lagos State Polytechnic, Ikorodu, Lagos-Nigeria

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Orcid

-

First Name

Akinrodoye

Last Name

F.

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-

Affiliation

Department of Biochemistry, College of Medicine, University of Lagos, Idi-Araba, Lagos-Nigeria

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Volume

9

Article Issue

1

Related Issue

3496

Issue Date

2017-06-01

Receive Date

2018-10-13

Publish Date

2017-06-01

Page Start

73

Page End

83

Print ISSN

2090-0872

Online ISSN

2090-0880

Link

https://eajbsg.journals.ekb.eg/article_16465.html

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https://eajbsg.journals.ekb.eg/service?article_code=16465

Order

8

Type

Original Article

Type Code

689

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, G. Microbiology

Publication Link

https://eajbsg.journals.ekb.eg/

MainTitle

In vitro Degradation of Extracted Cassava Linamarin by Bacillus Species Isolated from cassava wastewater

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Article

Created At

22 Jan 2023