The Characteristics of Acetobacter xylinum Membrane Affected by pH of Culture Medium
Amira Syazwani Mustafa Kamal1, Mohd Iqbal Misnon2, Mohd Rozi Ahmad3, Muhammad Ismail Ab Kadir4, Sukirah Abdul Rahman5
1Amira Syazwani Mustafa Kamal, Faculty of Applied Science, University Technology MARA, Shah Alam, Selangor, Malaysia.
2Mohd Iqbal Misnon, Textile Research Group, Faculty of Applied Science, University Technology MARA, Shah Alam, Selangor, Malaysia.
3Mohd Rozi Ahmad, Textile Research Group, Faculty of Applied Science, University Technology MARA, Shah Alam, Selangor, Malaysia.
4Muhammad Ismail Ab Kadir, Textile Research Group, Faculty of Applied Science, University Technology MARA, Shah Alam, Selangor, Malaysia.
5Sukirah Abdul Rahman, Pusat Penyelidikan Bioteknologidan Nanoteknologi, Ibu Pejabat MARDI, Persiaran MARDI UPM Serdang, Selangor, Malaysia.
Manuscript received on September 18, 2019. | Revised Manuscript received on October 20, 2019. | Manuscript published on October 30, 2019. | PP: 5873-5878 | Volume-9 Issue-1, October 2019 | Retrieval Number: A3020109119/2019©BEIESP | DOI: 10.35940/ijeat.A3020.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: There are numerous previous studies working on biosynthesis, properties and applications of bacterial cellulose (BC) membrane from Acetobacter xylinum bacteria strain. However, there is less research examining the effect of initial pH level on BC membrane properties. Here, BC membranes were produced at different pH level (concentration of acetic acid) of coconut water-based culture medium which are 3.5, 4.0, 4.5, 5.0 and 5.5 for 7 days, statically. The effect of initial pH level during BC production on morphology, physical and characteristics were investigated. The Acetobacter xylinum membrane were studied its crystallinity using X-ray diffraction, FTIR analysis for chemical structure and FESEM for morphological analysis. In addition, the different of initial pH level does affect the membrane yield and breathability properties using an Upright Cup Method of water vapour permeability testing. Although certain suitable amount of acid had reduced the production yield, a breathable BC membrane was produced.
Keywords: Cellulose membrane, pH level, Breathability properties, Water vapor permeability.