The Aspergillus niger growth on the treated concrete substrate using variable antifungals

International Engineering Research and Innovation Symposium

Parjo, U.K.^1,5 ; Sunar, N.M.^1,4,5 ; Leman, A.M.^1,5 ; Gani, P.^2,5 ; Embong, Z.^3,4,5 ; Tajudin, S.A.A.^2,4,5

Faculty of Engineering Technology, Department of Civil Engineering Technology, Malaysia^1

Faculty of Civil and Environmental Engineering, Department of Water and Environmental Engineering, Malaysia^2

Faculty of Science, Technology and Human Development, Department of Technology and Heritage, Malaysia^3

Research Center for Soft Soil, Universiti Tun Hussein Onn Malaysia, Malaysia^4

Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^5

关键词: Acrylic paint;    Antifungals;    Aspergillus niger;    Calcium benzoate;    Concrete substrates;    Food industries;    Plant growth;    Potassium sorbates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/160/1/012051/pdf
DOI  :  10.1088/1757-899X/160/1/012051

来源: IOP

【 摘 要 】

The aim of this study was to evaluate the Aspergillus Niger (A. Niger) growth on substrates after incorporates with different compounds of antifungals which is normally used in food industry. The antifungals named as potassium sorbate (PS), calcium benzoate (CB) and zinc salicylate (ZS) were applied on concrete substrate covered with different wall finishing such as acrylic paint (AP), glycerol based paint (GBP), thin wallpaper (THIN) and thick wallpaper (THICK). The concrete substrate were inoculated with spore suspension, incubated at selected temperature (30°C) and relative humidity (90%)in plant growth chamber. The observations were done from the Day 3 until Day 27. The results showed that the growth of the A. Niger for concrete treated by PS for AP, GBP, THIN, and THICK were 64%, 32%, 11% and 100%, respectively. Meanwhile for CB, the growth of A. Niger on AP, GBP, THIN, and THICK were 100%, 12%, 41%, and 13%, respectively. Similarly, treated concrete by ZS revealed that the growth of A. Niger on the same substrate cover were 33%, 47%, 40%, and 39%, respectively. The results obtained in this study provide a valuable knowledge on the abilities of antifungals to remediate A. Niger that inoculated on the concrete substrate. Consequently, this study proved that the PS covering with THIN more efficiency compares CB and ZS to prevent A. Niger growth.