ABSTRAKTelah dilakukan uji aktivitas antifungi partikel nano seng oksida (NP ZnO)
terhadap isolat kapang A1P dan A2C, yang di isolasi dari plafon rumah. Metode
uji yang dilakukan adalah plate agar menggunakan PDA yang ditambahkan NP
ZnO pada konsentrasi 0,1%; 0,25%; 0,5%; atau 1%. Pengamatan pertumbuhan
kedua isolat kapang dilakukan dengan metode hanging drop menggunakan
medium PDA yang mengandung NP ZnO sebesar 0,1%; 0,25%; 0,5%; 1%, 1,5%;
atau 2%. Konsentrasi minimum hambatan (KMH) ditentukan dengan metode
tube dilution menggunakan medium PDB dengan konsentrasi NP ZnO 0,5%; 1%;
1,5%; atau 2%. Konsentrasi minimum fungisidal (KMF) ditentukan berdasarkan
jumlah sel hasil total plate count (TPC) dari perlakuan tube dilution. Hasil plate
agar dan hanging drop menunjukan bahwa NP ZnO memiliki sifat fungistatik
yang meningkat seiring besarnya konsentrasi. Hal tersebut diindikasikan dengan
tetap adanya pertumbuhan A1P dan A2C walaupun mengalami perlambatan
germinasi spora dan penurunan diameter koloni. Pada tube dilution, isolat kapang
juga mengalami perlambatan pertumbuhan yang signifikan dibandingkan dengan
kontrol, sesuai dengan hasil plate agar maupun hanging drop. Kedua isolat
kapang tidak mengalami pertumbuhan pada cat yang ditambah NP ZnO walaupun
telah di inkubasi melebihi waktu inkubasi tube dilution, selama 2 minggu.
ABSTRACTAntifungal activity test of zinc oxide nanoparticle (ZnO) against molds A1P and
A2C, which were isolated from ceiling, has been carried out. Agar plate method
test was done using PDA added with 0,1%; 0,25%; 0,5%; or 1% ZnO. Growth of
the molds on PDA medium added with 0,1%; 0,25%; 0,5%; 1%, 1,5%; or 2%
ZnO was observed using hanging drop method. Minimum inhibition
concentration (MIC) was determined by tube dilution method in PDB medium
which contains 0,5%; 1%; 1,5%; or 2% ZnO. Minimum fungicidal concentration
(MFC) was determined based on cells count from total plate count (TPC) of tube
dilution. Results from plate agar and hanging drop showed that ZnO worked as
fungistatic which escalated along its increased concentration. This was indicated
by the growth of A1P and A2C although the spore germination was slow down
and also decrease on the colony diameter. Growth of molds in tube dilution was
slow down significantly compared to control, which correspond to result of plate
agar and hanging drop. Both isolates did not grow on the paint test which was
added with ZnO, although the incubation time has been prolonged to more than 2
weeks.