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All Journal Biosaintifika: Journal of Biology & Biology Education Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)
Sitti Wirdhana Ahmad
Department Of Biology, Faculty Of Mathematics And Natural Science, Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Species Diversity and Cave-Bat Conservation Efforts in Aoma Village, Wolasi District -Southeast Sulawesi Amirullah Amirullah; Sitti Wirdhana Ahmad Bakkareng; La Ode Fabir Risnaldi
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 10 No. 1 (2023): June Edition
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v10i1.305

Abstract

Indonesia a tropical country that remains warm all year, has the largest biodiversity. This study aims to determine the diversity of bats of the order Microchiroptera in Rau Cave, Wolasi, Conservation (Protected) Forest area, around Aoma Village, South Konawe Regency. Data collection was carried out using a mist net measuring 6 x 2 meters which were stretched in front of the mouth of the cave at 16.00 before the bats came out looking for food and harvested at 06.00-0.700. The trapped bats were identified using the Sulawesi Bat and its role in the health sector, and other relevant references. The results showed that there were 26 trapped bats consisting of  5 species, namely Rhinolopus arcuatus (Prok Bruk Sulawesi), Hipposideros ater (Barong gauld), Dobsonia viridis (Kubu Hijau), Miniopterus australis (Tomosu australi) and Hipposideros dinops (Barong horsfield). The species found consisted of 2 families, namely the families Rhinolopidae and Hipposideridae, and consisted of 2 genera, namely the genera of Dobsonia and Miniopterus. The diversity index shows a value (H') = 0.986, which indicates a low category in diversity and a Margalef wealth index (R) of 0.26. It is necessary to conserve plant species both for eating insects and for food sources for Microchiroptera bats in their feeding ground
Screening of Acetic Acid Bacteria from Pineapple Waste for Bacterial Cellulose Production using Sago Liquid Waste Nur Arfa Yanti; Sitti Wirdhana Ahmad; Sri Ambardini; Nurhayani Haji Muhiddin; La Ode Iman Sulaiman
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 3 (2017): December 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i3.10241

Abstract

Bacterial cellulose is a biopolymer produced by fermentation process with the help of bacteria. It has numerous applications in industrial sector with its characteristic as a biodegradable and nontoxic compound in nature. The potential application of BC is limited by its production costs, because BC is produced from expensive culture media. The use of cheap carbon and nutrient sources such as sago liquid waste is an interesting strategy to overcome this limitation. The objective of this study was to obtain the AAB strain that capable to produce bacterial cellulose from sago liquid waste. Isolation of AAB strains was conducted using CARR media and the screening of BC production was performed on Hestrin-Schramm (HS) media with glucose as a carbon source. The strains of AAB then were evaluated for their cellulose-producing capability using sago liquid waste as a substrate. Thirteen strains of AAB producing BC were isolated from pineapple waste (pineapple core and peel) and seven of them were capable to produce BC using sago liquid waste substrate. One of the AAB strains produced a relatively high BC, i.e. isolate LKN6. The result of morphological and biochemical test was proven that the bacteria was Acetobacter xylinum. The result of this study showed that A. xylinum LKN6 can produce a high yield of BC, therefore this strain is potentially useful for its utilization as a starter in bacterial cellulose production. 
Co-Authors Amirullah Amirullah La Ode Fabir Risnaldi La Ode Iman Sulaiman Nur Arfa Yanti Nurhayani Haji Muhiddin Sri Ambardini