Othman Maizatulnisa, Rashid Haziq, Jamal Nur Ayuni, Shaharuddin Sharifah Imihezri Syed, Sulaiman Sarina, Hairil H Saffiyah, Khalid Khalisanni, Zakaria Mohd Nazarudin
Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University Malaysia, Gombak 50728, Selangor, Malaysia.
PERMATApintar College, National University Malaysia, Bangi 43600, Selangor, Malaysia.
Polymers (Basel). 2018 Dec 20;11(1):4. doi: 10.3390/polym11010004.
This study was conducted to improve the life-span of the biofilm produced from algae by evaluating the decomposition rate with the effect of cinnamon extraction oil (CEO). The biofilm was fabricated using the solution casting technique. The soil burying analysis demonstrated low moisture absorption of the biofilm, thus decelerating the degradation due to low swelling rate and micro-organism activity, prolonging the shelf-life of the biofilm. Hence, the addition of CEO also affects the strength properties of the biofilm. The maximum tensile strength was achieved with the addition of 5% CEO, which indicated a good intermolecular interaction between the biopolymer (algae) and cinnamon molecules. The tensile strength, which was measured at 4.80 MPa, correlated with the morphological structure. The latter was performed using SEM, where the surface showed the absence of a separating phase between the biofilm and cinnamon blend. This was evidenced by FTIR analysis, which confirmed the occurrence of no chemical reaction between the biofilm and CEO during processing. The prolongation shelf-life rate of biofilm with good tensile properties are achievable with the addition of 5% of CEO.
本研究旨在通过评估肉桂提取油（CEO）对藻类生物膜分解速率的影响来提高其使用寿命。生物膜采用溶液浇铸技术制备。土壤掩埋分析表明，生物膜的吸湿性较低，因此由于低膨胀率和微生物活性而减缓了降解速度，延长了生物膜的保质期。因此，添加CEO也会影响生物膜的强度性能。添加5%的CEO时可获得最大拉伸强度，这表明生物聚合物（藻类）与肉桂分子之间存在良好的分子间相互作用。拉伸强度为4.80MPa，与形态结构相关。后者通过扫描电子显微镜（SEM）进行观察，其表面显示生物膜与肉桂混合物之间不存在分离相。傅里叶变换红外光谱（FTIR）分析证明了这一点，该分析证实了在加工过程中生物膜与CEO之间未发生化学反应。添加5%的CEO可实现具有良好拉伸性能的生物膜保质期延长率。
