THỬ NGHIỆM KHẢ NĂNG ỨC CHẾ NẤM SỢI TRÊN KÍNH QUANG HỌC CỦA BIOXIT AIT
Nội dung chính của bài viết
Tóm tắt
EXAMINATION OF CAPABILITY AGAINST MOLDS ON OPTICAL EQUIPMENTS BY BIOXIT AIT
Tropical climates is suitable for growing molds. Optical equipments can be damaged by molds in the storage or use condition. 18 strains fungi belong to 14 different genera in optical instrument of factory 23/Z199 we are isolated. In the development, pH of culture was changed by these strains from neutral to acid, in that there are 4 genera Aspergillus niger QH2306 - pH 2,56; Aspergillus oryzae QH2302-pH 4,95; Penicillium lanoso QH2308 pH 4,85 and Chaetomium globosum QH2316 - pH 4,19. Prevented molds from growing in optical equipments we tested volatile inhibitor Allyl isothiocyanate (AIT) and applied this biocide AIT for protection optical equipments at humic 97%, temperature 28 ± 2oC, Minimum Inhibitory Concentration (MIC) is 0,001mg/m3. After 28 days tested, molds could not growed in optical instrument and the technical parameter of optical instrument was changed by molds.
Từ khóa
Mold, optical instrument, allylisothiocyanate, nấm sợi, thiết bị quang học, công nghệ sinh học
Chi tiết bài viết
Tài liệu tham khảo
2. Isshiki K.,Tokuoka K., Mori R. and Chiba S., 1992, “Preliminary examination of allyl isothiocyanate vapor for food preservation”, Bioscience Biotechnology and Biochemistry 56, vol.9, p.1476-1477.
3. Saxena B.B.L., Nigam S.S and Segupta S.R, 1963, “Fungal attack of optical instruments and its prevention”, Indian Journal of Technology, vol.01, p.283-286.
4. Turner J.S., McLennan E.I., Rogers J.S and Matthaei E., 1946, “Tropic-Proofing of optical instrument by a fungicide”, Nature, vol.158 , p.469-472.