Judul: Mempelajari Formulasi Bahan Penyerap Oksigen dan Laju Penyerapannya di Udara
Abstrak: Oksigen merupakan salah satu faktor yang banyak menyebabkan kerusakan bahan pangan seperti oksidasi lemak yang menyebabkan ketengikan, perubahan warna pigmen dan produkproduk susu, pertumbuhan kapang dan bakteri aerobik serta investasi serangga pada biji-bijian dan tepung.
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Judul: Indikator oksigen berbasis Metilen Biru sebagai pendeteksi  kebocoran kemasan
Abstrak: Oksigen merupakan salah satu faktor utama yang sering menyebabkan kerusakan makanan. Indikator oksigen merupakan kemasan cerdas yang dapat mendeteksi kebocoran kemasan sehingga dapat mencegah rusaknya makanan akibat adanya oksigen hingga di bawah 0.1%. Penelitian ini bertujuan untuk mendapatkan formulasi terbaik dalam pembuatan indikator oksigen. Bahan utama yang digunakan adalah glukosa kristal, CaOH, dan metilen biru 1%. Metilen biru ditambahkan pada campuran glukosa dan CaOH kemudian diaduk rata. Glukosa dalam kondisi alkali akan mereduksi metilen biru dari warna biru menjadi tidak berwarna dan kembali menjadi warna biru ketika kontak dengan oksigen. Penelitian ini terdiri dari beberapa tahap meliputi (i) pembuatan indikator oksigen dengan berbagai formulasi, (ii) uji karakteristik berdasarkan tekstur, warna, umur simpan, serta sifat dan kesensitifannya terhadap oksigen, (iii) pembuatan sachet indikator oksigen. Formulasi indikator oksigen yang baik memiliki karakteristik diantaranya murah, teksturnya halus dan tidak ada gumpalan, tidak beracun, bersifat irreversible terhadap oksigen, umur simpan yang lama dan memiliki tingkat kesensitifan yang tinggi terhadap oksigen. Berdasarkan pengujian yang telah dilakukan, diperoleh kesimpulan bahwa formulasi indikator oksigen yang terbaik harus memiliki perbandingan komposisi bahan glukosa:CaOH:metilen biru sebesar 1:7:1 sampai 1:8:1., Oxygen is one of the main factors that often cause food deterioration. Oxygen indicator is smart packaging that can detect leaks to prevent to food as a result of the exceeded concentration of oxygen lower than 0.1%. The aim of this research was to get the best formulation in the manufacture of oxygen indicator. The main materials used were glucose, CaOH, and methylene blue 1%. Methylene blue was added to the mixture of glucose and CaOH, then glucose in alkaline medium was reduce methylene blue from blue to colorless and back into a blue colour after contact with oxygen in a certain amount. The research consisted of several stages included (i) producing oxygen indicators with various formulations, (ii) test characteristics based on texture, colour, shelf life, characteristic and oxygen sensitivity, (iii) producing of sachets oxygen indicator. The best indicator of oxygen formulation should have the characteristics of cheap, smooth texture and no lumps, non-toxic, irreversible, long shelf life and high sensitive to oxygen. Based on the testing that had been done, it was concluded that the formulation of the best indicators of oxygen had a composition ratio of glucose:CaOH:methylene blue for 1:7:1 to 1:8:1.
Keyword: indikator oksigen, kemasan cerdas, metilen biru

Judul: Mitochondrial DNA Gene Organization and Phylogenetic Relationship of Naja siamensis
Abstrak: Naja siamensis is one of Asiatic cobra in the Family of Elapidae, known as a cryptic snake. It has many morphological variations that lead to misidentification. Misidentification can cause the wrong concept in developing antivenom types due to high snakebite cases occur in Thailand. Thus, an accurate species identification using a molecular approach is crucially required. Mitochondrial DNA has been used widely in snake molecular studies. These studies were aimed to determine the arrangement of the N. siamensis partial mitochondrial genes using reptile-oriented primers and to reveal the phylogenetic relationship among other species of Asian cobra. DNA extraction was carried out based on the standard DNA salting-out protocol and was conducted by bioinformatics analysis using BLASTn and MEGA 6 software. Gene annotation was performed against N. kaouthia complete genome. A total of 3121 bp of N. siamensis mtDNA genes were sequenced consisting of partial of six regions: 16S rRNA, ND1, tRNA-Ile, CRII region, tRNA-Leu, tRNA-Gln, and COI genes. The mtDNA gene organization of N. siamensis was predicted to has a similar pattern with the common Elapidae mtDNA gene organization. This study showed that there is a monophyletic form in Naja genus and N. kaouthia is the closest species with N. siamensis based on partial 16S rRNA and ND1 gene.
Keyword: 16S rRNA, Elapidae, ND1, phylogenetic relationship