Judul: Kualitas Fisik, Kimia dan Organoleptik Salami Kandidat Probiotik selama Penyimpanan Dingin
Abstrak: Salami merupakan salah satu produk olahan lanut dari daging yang memanfaatkan bakteri untuk proses fermentasi. Proses frmentasi yang terjadi pada produk salami oleh bakteri khususnya bakteri asam laktat yang digunakan sebagai kandidat probiotik adlah bakteri asam laktat yang tahan pada kondisi pH rendah sesuai dengan pH lambung (pH 2), pH usus yaitu pada pH 7,2 dan tahan terhadap garam empedu (0,3%). Penelitian ini dilaksanakan di bagian Ilmu Produksi Ternak Ruminansia Besar Fakultas Peternakan Institut Pertanian Bogor dan Berlangsung selama 3 Bulan yaitu mulai bulan Juni sampai Agustus 2008. Penelitian ini bertujuan untuk mengetahui kualitas salami kandidat probiotik mixed kultur Lactobacillus sp 1A5 dan Lactobacillus fermentum 2B2 secara fisik, kimia dan organoleptik selama 0,10, 20, dan 30 hari penyimpanan pada suhu dingin (10 kurang lebih 2) derajat Celcius.
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Judul: Kualitas Mikrobiologis  Salami Probiotik yang Difermentasi oleh Kombinasi  Kultur  Lactobacillus sp  1A5 dan  Lactobacillus fermentum 2B2 Selama Penyimpanan Dingin
Abstrak: Probiotic Salami is one of functional foods which is made from meat, it is fermented by starter culture of lactic acid bacteria. The lactic acid bacteria were used as starter has potential as probiotic. The probiotic bacteria will guard microflora balancing in our gastrointestinal. The aim of this research was to evaluate microbiological quality of probiotic salami produced from mixed culture of Lactobacillus sp 1A5 dan Lactobacillus fermentum 2B2. The randomized complete design with three times replication was used as experimental design. The treatments were storage at low temperature 10o ± 2o C for 0-day after conditioning process, 10- day, 20-day, and 30 day. The variables were total lactic acid bacteria, total plate count, quantitative of Staphylococcus aureus, quantitative of Escherichia coli. The result of this research showed that the decreasing quantitative of Staphylococcus aureus and quantitative of Escherichia coli were not significantly (P > 0,05) effected during cold storage. There was significant decreasing (P < 0,05) from total lactic acid bacteria and total plate count during cold storage. The significant effect of the total lactic acid bacteria occurred at 20-day and total plate count were at 30-day. Keywords : Salami, probiotic, storage, microbiological
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology