[ English | Bahasa Malaysia ] Today is 23rd Jul 2024, 10:19 PM (Last updated: 23rd Jul 2024)

Text Red Text Black Text Blue Text Green Text Smaller Text Reset Text Larger

Publication Details
Year :

2013

Journal :

Wan Azlina Ahmad, Wan Haslinda Wan Ahmad, Nousuhada Abdul Karim, AS Santhana Raj and Zainul Akmar Zakaria (2013). Cr(VI) reduction in naturally rich growth medium and sugarcane bagasse by Acinebacter haemolyticus. International Biodeterioration and Biodegradation 85: 571-576

Abstract :

The potential of agricultural waste as substitute for rich-growth medium for bacteria during Cr(VI) reduction was investigated using the locally isolated Cr(VI) resistant-reducing strain of Acinetobacter haemolyticus and sugarcane bagasse. A.haemolyticus showed higher resistance to 100mg/L Cr(VI) in Luria Bertani (>1010CFU/mL) compared to sugarcane bagasse (106CFU/mL). Higher Cr(VI) reduction by the SCB-immobilized bacteria (>90%) compared to in LB only (around 25%) clearly indicated the role of SCB in carrying out abiotic reduction of Cr(VI) as well as Cr(VI) adsorption. Nevertheless, Cr(III) wasdetected on the bacterial surface using Electron Spin Resonance (ESR) and electron microscopy (FESEM-EDX) analysis. The Cr(III) deposition occurred probably via complex formation with either carboxyl, hydroxyl or amide groups present on the bacterial cells surface as suggested from the FT-IR analysis. TEM analysis further showed Cr distribution at the membrane and cytosolic fractions. This work clearly demonstrated the role of bacteria in reducing Cr(VI) to Cr(III) as well as the potential of using agricultural waste material such as SCB to carry out abiotic Cr(VI) reduction.

myGOV MAMPU JPA IKU MSC NMMR CRC MyHEALTH MOH Globinmed SPA krste.my

Notice

 

This site is best viewed on Firefox (24.0) with resolution higher than 1280 x 768 pixels.

Our Location

world

Located at Setia Alam, Selangor, Malaysia. Click on the map image to launch Google Maps service.

Get in touch with us