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All Journal Environmental and Toxicology Management (ETM)
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
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Environmental Science Public Health

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Journal : Environmental and Toxicology Management (ETM)

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Morphological characterization of gram-positive and gram-negative bacteria from treated latex processing wastewater Farrah Aini Dahalan; Nor Azizah Parmin
Environmental and Toxicology Management Vol. 1 No. 2 (2021): Green chemistry for environmental problem solutions
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.661 KB) | DOI: 10.33086/etm.v1i2.2263

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.
Co-Authors Farrah Aini Dahalan