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All Journal MARINA CHIMICA ACTA Jurnal Natur Indonesia SAINSMAT Teknosains: Media Informasi Sains dan Teknologi Indonesia Chimica Acta Al-Kimia Chemistry Indonesian Journal of Chemical Research INTEK: Jurnal Penelitian
Nursiah La Nafie
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Hasanuddin University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Environmental Science Physics

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Journal : Al-Kimia

 1 
Penggunaan Epiklorohidrin Dalam Meningkatkan Stabilitas Adsorben Kitosan Berikatan Silang Dan Kitosan Tercetak Ionik Kobal Muhammad Qaddafi; Abd. Wahid Wahab; Nursiah La Nafie; Paulina Taba
Al-Kimia Vol 2 No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1172.956 KB) | DOI: 10.24252/al-kimia.v2i2.1641

Abstract

The use of epichlorohydrin to improve the stability of chitosan adsorbent has been carried out. The purpose of this study was to determine the stability of the chitosan adsorbent after modified into epichlorohydrin cross-linked chitosan and ionic cobalt imprinted adsorbent chitosan cross-linked epichlorohydrin. Adsorbent prepared by homogeneous gel formation of chitosan in acetic acid medium and then modified into epichlorohydrin cross-linked chitosan beads and ionic cobalt imprinted adsorbent chitosan cross-linked epichlorohydrin. Stability of the adsorbent was determined by calculating the percentage of insoluble material after stirring the adsorbent in nitric acid medium at pH 1, 2, and 3 for 12 hours. The results of FTIR spectra show a shift of the absorption band of chitosan were compared with epichlorohydrin cross-linked chitosan and ionic cobalt imprinted adsorbent chitosan cross-linked epichlorohydrin. The use of epichlorohydrin as cross-linked agent may increase the stability of the adsorbent to maintain the percentage of insoluble material by 89% at pH 3 for epichlorohydrin cross-linked chitosan adsorbent and 96% at pH 3 for ionic cobalt imprinted adsorbent chitosan  cross- linked epichlorohydrin.
Isolasi Dan Karakterisasi Bakteri Simbion Larva Kupu-Kupu Cossus cossus Penghasil Enzim Selulase Maswati Baharuddin; Abd. Rauf Patong; Ahyar Ahmad; Nursiah La Nafie
Al-Kimia Vol 2 No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.729 KB) | DOI: 10.24252/al-kimia.v2i2.1653

Abstract

This study was conducted to characterize bacterial symbionts of butterfly larvae Cossus cossus capable of degrading cellulose. This study successfully purify and characterize isolates originating  from the intestine (CC1 and CC2), head (CC3), middle (CC4), and tail (CC5). From a qualitative test using 0.1% congo red gained the clear zone indicates that the bacteria are able to degrade cellulose. Based on the test temperature and pH on the growth of the data obtained CC5 isolates including isolates of thermophilic bacteria, while others including mesophilic bacteria. While based pH test all isolates were able to grow well at neutral pH. Based on the data obtained growth curve maximum bacterial growth at the 24th hour. Based on morphology and physiology test obtained bacteria genus Acinotobacter, Pseudomonas, and Bacillus.
Co-Authors . Fahruddin Abd. Rauf Patong Abd. Wahid Wahab Abdul Wahid Wahab Abdul Wahid Wahab Adiba Arief Ahyar Ahmad Alfian Noor Alfian Noor Andi Nuraeni Indah Raya Ismail Marzuki Ismail Marzuki M Natsir Djide Maswati Baharuddin Muhammad Qaddafi Muhammad Zakir Musa Ramang Nur Haedar Paulina Taba Paulina Taba Prastawa Budi Rachma Surya Masnawan Ridhawati Ridhawati Sabaniah Indjar Gama Seniwati Dali Seniwati Dali Serly Tandigau Surahmi Usman Syaharuddin Kasim Tahril