%0 Conference Paper %B Internatiomal Symposium on Indonesian Biodiversity %D 2013 %T Preliminary study of alkalitolerant xylanolytic soil fungi from South Sumatra, Riau and DI Yogyakarta %A Elisa Nurnawati %A Sebastian Margino %A Erni Martani %A Sarto %K alkalitolerance fungi %K soil %K xylanolytic enzymes %X Fungi, typically have a high level of tolerance for acidity. However, there are some fungi that are capable of growing in alkaline conditions. Xylanolytic enzymes, that have optimum activity on alkaline condition, can be used in the pulp and paper industry. Alkaline xylanolytic enzymes can help the process of bleaching pulp thus reducing the use of chlorine compounds. The aim of this research was to study about alkaline xylanolytic fungi that isolated from neutral-acidic soil. The soil samples that used as fungal source was taken from some areas in South Sumatra, Riau and D.I. Yogyakarta. Isolation of fungi was be done on alkaline media (pH 9). Screening of enzyme production were performed on basal media xylanolytic with xylan birchwood as the sole source of carbon. As many as 80 isolate alkalitolerant fungi successfully found in all soil samples. The number of isolate from each sample was influenced by its soil acidity. The result showed that isolate 7JT, 10WNGM and 11ME have high alkaline xylanolytic enzyme activity in order to compared with another isolates. Alkalitolerant fungi that found in the soil of some areas in Indonesia could be produce the alkaline xylanolytic enzyme and potentially to develop in the industry. %B Internatiomal Symposium on Indonesian Biodiversity %I Faculty of Biology, Jenderal Soedirman University %C Purwokerto, Central Java, Indonesia %G eng