Judul: Pengaruh Suhu Produksi terhadap Aktivitas Ekstrak Kasar Bakteriosin dari Berbagai Galur Lactobacillus sp dalam Menghambat Escherichia coli dan Staphylococcus aureus
Abstrak: The interest of biopreservation systems in foods are increasing in industries and consumers lately. Bacteriocinogenic lactic acid bacteria and/or their isolated bacteriocins are considered as GRAS (generally recognize as safe. It is useful to control the frequent development of pathogens and spoilage microorganisms in foods. The study was aimed to compare activity of crude extract bacteriocins from Lactobacillus sp. strain SCG 1211, SCG 1221, and SCG 1223, which can suppress the growth of Escherichia coli and Staphylococcus aureus; and to compare the effect of heating temperature at 80 oC and 100 oC. Adsorbtion-desorbtion method was applied in production step. The inhibitory activities of the bacteriocins were indicated by the presence of a transparent zone surrounding the agar wells. The result showed that inhibitory activity of crude extract bacteriocin were not affected by heating temperature (p>0,05). The highest activity was shown by crude extract bacteriocin from Lactobacillus sp. strain SCG 1211, which the activity was (853,01 ± 0,00) AU/mL towards E.coli and (1033,08 ± 65,76) AU/mL towards S.aureus.
Keyword: Inhibitory activity., Lactobacillus sp, adsorbtion-desorbtion, bacteriocin, biopreservatife

Judul: Produksi Bakteriosin Asal Lactobacillus plantarum sebagai Antimikrob dan Pengujian Ketahanannya terhadap Panas
Abstrak: Bacteriocin is commonly used to biopreservative agent in food. Bacteriocin is an antimicrobial substance that is capable to inhibit toward pathogenic and food borne bacteria. It was reported that indigenous isolate of Lactobacillus plantarum isolated from Indonesian local beef producing an antimicrobial substance (Arief et al., 2008). The objective of this research was to characterize the heat stability of plantaricin at pasteurization and sterilization temperature. The treatments were heat temperature (80 °C for 30 minutes and 121 °C for 15 minutes) and strains of Lactobacillus plantarum (2C12, 1A5, 1B1 and 2B2) usage. The variable was diameter of inhibition zone of antagonistic activity. Antimicrobial activity of plantaricin of Lactobacillus plantarum 2C12, 1B1, 2B2, and 1A5 did not lost after treated at 80 °C for 30 minutes or at 121 °C for 15 minutes. That result showed that plantaricin was stable at pasteurization and sterilization temperature. Plantaricin produced by strains of L. plantarum against indicator bacteria such as Pseudomonas ATCC 27853, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 and Salmonella enteriditis ser. Typhimurium ATCC 14028 had different activity each other. However, inhibition activity of plantaricin did not lead against Bacillus cereus. Stability of antimicrobial activity of plantaricin to inhibit indicator bacteria after heat treatment proved that plantaricin has a potential as food biopreservative.
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Judul: Peranan Jasa Transportasi dalam  Menunjang Pembangunan Wilayah  Kaitannya dengan Pelaksanaan  Otonomi Daerah di Provinsi Papua  Khususnya Kabupaten Jayapura
Abstrak: Ketimpangan pembangunan yang terjadi selama Orde Baru telah memicu disintegrasi bangsa, salah satu daerah yang diisukan terancam disintegrasi sebagai akibat ketimpangan pembangunan pada reszim orde baru adalah Provinsi Papua, sehingga untuk meredam aspirasi disintgrasi, dimasa reformasi Provinsi Papua ditetapkan sebagai daerah yang menerima Otonomi Khusus. Dengan adanya otonomi khusus ini diharapkan pemerintah daerah lebih leluasa mengabil kebijakan yang disesuaikan dengan aspirasi dan prioritas permasalahan yang dihadapi masyarakat.
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