Abstract:
Fungi growing on rubber reduce the value of rubber. The objectives of this present study are to identify types of fungi growing on rubber and to compare the effectiveness of crude extract from indigenous vegetables in inhibiting the fungi. There were 7 isolates, identified by using morphological features into 2 genera; Pennicilium spp. (P1, P2, P3) and Aspergillus spp. (A1, A2, A3, A4). Five crude extracts from bitter bean shell (Parkia speciosa Hassk), djenkol beanshell (Archidendron jiringa Nielsen.), mangosteen shell (Garcinia mangostana L.), betel nut meat (Areca catechu L.), and wild banana fruit (Musa acuminata Colla.) were tested in inhibiting the 7 isolates using agar disk diffusion method. The results showed that bitter bean shell extract can inhibit P2 and P3, Betel nut meat extract can inhibit P2 and A1. while djenkol bean shell extract can inhibit P1 and P2., while wild banana fruit and mangosteen shell extract could not inhibit all the 7 isolates. The highest efficiency of crude extract in inhibiting the fungi growth, was that of bitter bean shell extract, followed by betel nut meat, and djenkol beanshell, respectively.
WALAILAK UNIVERSITY. CENTER FOR LIBRARY RESOURCES AND EDUCATIONAL MEDIA