A.S. Johari, N.H. Tarmizi, Nur Ayunie Zulkepli, N. Mokhtar, M.K. Ya’kub, S. Sarmoko
Dental plaque on tooth surfaces significantly contributes to dental caries leading to acidic demineralization of the tooth enamel and dentin. This is mainly caused by the formation of pathogenic bacterial biofilm. Dental caries affects approximately 3.5 million people around the world. Compared to synthetic anticariogenic agents such as chlorohexidine, plant-based compounds were found to have fewer side effects and higher economic value. Pineapple (Ananas comosus) is one of the largely commercialized plants in Malaysia with beneficial attributes such as its Bromelain enzyme. This study aimed to purify Bromelain enzyme from MD2 pineapple core and to evaluate their antibacterial properties against dental caries-associate pathogens in vitro. This study evaluated the effect of Bromelain enzyme isolated from MD2 pineapple core using 50% ammonium sulphate precipitation incorporated with centrifugal ultrafiltration against Streptococcus mutans, Staphylococcus aureus, Lactobacillus acidophilus, and Lactobacillus casei. Bromelain enzyme showed effectivity of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) for all cariogenic organisms. Ultrafiltrate Bromelain (UFB) enzyme had significant antibacterial activity against S. mutans with a MIC value of 250 μg/ml and complete susceptibility at an MBC value of 1000 μg/ml. Biofilm inhibition against S. mutans increased from 45.98% to 57.48% with ultrafiltration. A 3.25 purification fold increase was observed in the ultrafiltrate sample. In conclusion, the ultrafiltration technique is efficient in purifying Bromelain enzyme and effectively inhibits S. mutans biofilm formation and thus possesses a potential inhibitory effect on dental caries in vitro. © 2023, Faculty of Medicine, University of Malaya. All rights reserved.
IC-Innovation in Biomedical, SIRIM Industrial Research, SIRIM Berhad, Kulim, Kedah, 09000, Malaysia; Centre for Medical Laboratory Technology Studies, Faculty of Health Sciences, Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Bandar Puncak Alam, 42300, Malaysia; Dental Simulation and Virtual Learning Research Excellence Consortium, Department of Dental Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Kepala Batas, 13200, Malaysia; SMART KJ Agro (Asia) Plt, Bandar Amanjaya, Kedah Darul Aman, Sungai Petani, 08000, Malaysia; Department of Pharmacy, Sumatera Institute of Technology, Lampung, Indonesia
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