Environmental and Toxicology Management (ETM)
Vol. 1 No. 2 (2021): Green chemistry for environmental problem solutions

Morphological characterization of gram-positive and gram-negative bacteria from treated latex processing wastewater

Farrah Aini Dahalan (Water Research and Environmental Sustainable Growth (WAREG), Faculty of Civil Engineering Technology, Universiti Malaysia Perlis (UniMAP), Kompleks Pengajian Jejawi 3, 02600 Arau, Perlis,Malaysia)
Nor Azizah Parmin (Institute of Nano Electronic Engineering (INEE),Universiti Malaysia Perlis (UniMAP), Lot 106, Tingkat 1, Blok A, Taman Pertiwi Indah, Jalan Kangar-Alor Setar, Seriab 01000 Kangar, PerlisMalaysia)



Article Info

Publish Date
31 Aug 2021

Abstract

A preliminary morphological screening and isolation of bacterial colony from latex industrial wastewater was carried out. Bacteria colonies from latex processing wastewater were isolated from a local latex processing industry. It was found that 17 bacterial isolates had been purified grown on nutrient agar under 35˚C. The colonies were then purified and morphologically indicated via Gram staining and motility test. After morphological observation, it was identified that out of 17 isolates, 9 isolates were Gram positive and 8 isolates were Gram negative. There are 11 out of 17 colonies were rod-shaped bacterial colonies, while the other 6 colonies were cocci-shaped bacteria. There were 11 colonies of gliding bacteria, three colonies were non-motile bacteria and the other three colonies were flagellated bacteria. This study is only limited to morphological observation as the main aim of this study was to investigate the potential occurrence of viable growth in treated latex processing wastewater. The bacterial colonies were classified base on their morphological properties shown. This study has classified several genera such as Staphylococcus, Escherichia, Thiobacillus, Arthrobacter and other Genus. The growth curve of 17 isolates studied and the chemical oxygen demand were determined.

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Journal Info

Abbrev

etm

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Environmental Science Public Health

Description

Environmental and Toxicology Management is a peer-reviewed journal for the publication of original articles, short communication, review articles, and case studies on the fundamentals, applications, and management of environmental and toxicology. Environmental and Toxicology Management is published ...