Judul: Pengeringan dan formulasi Serbuk Minuman Berbasis Sayuran dengan pengeringan semprot
Abstrak: Petani wortel dan bayam sering kali mengalami kerugian pada saat harga sayuran tersebut anjlok akibat hasil produksi yang melimpah namun umur simpan komoditas dalam bentuk segar yang sangat singkat. Alternatif solusi untuk mengatasi hal tersebut perlu dikembangkan salah satunya dengan cara meningkatkan umur simpan melalui pemanfaatan teknologi pengeringan semprot. Pengeringan semprot dapat menghasilkan serbuk sayuran instan yang memiliki retensi nutrisi lebih tinggi dibanding metode pengeringan lainnya. Serbuk instan yang dihasilkan dicampur kering berdasarkan formula tertentu untuk mendapatkan produk minuman instan yang memiliki nilai penerimaan konsumen tertinggi. Dalam rangka meningkatkan nilai tambah dari serbuk sayuran instan tersebut, maka ditambahkan satu jenis sayuran yang telah diketahui memiliki nutrisi dan manfaat yang berlimpah bagi tubuh yaitu brokoli. Sayuran pada umumnya diketahui sebagai bahan pangan yang kaya akan provitamin A. Selain itu produk pangan yang berasal dari tanaman juga memberikan flavor dan aftertaste kesegaran yang khas saat dikonsumsi. Ketiga bahan tersebut merupakan sayuran yang dapat dengan mudah diperoleh di pasar tradisional maupun modern terutama bayam dan wortel karena harganya yang sangat terjangkau dan digemari. Tujuan dari penelitian ini adalah mengembangkan produk minuman sayuran berbahan baku brokoli, bayam, dan wortel dalam bentuk serbuk. Melalui penelitian ini ingin diperoleh konsentrasi penambahan pengisi terbaik dalam pengeringan masing-masing sayuran dan penerimaan konsumen terhadap formula serbuk minuman sayuran yang telah dirancang. ...
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Powder, Jus, Sayuran, Spray, Semprot, Pengering Semprot

Judul: Pengeringan dan Formulasi Serbuk Minuman Berbasis Sayuran dengan Pengeringan Semprot.
Abstrak: Demand of healthy and natural food products are increasing as people awareness of health and food consumption arise. This condition promotes emerging trend in healthy food such as vegetable juices and beverages. The general purpose of this research was to develop a convenient and acceptable powdered drink based on vegetables--broccoli, spinach, and carrot. Specific purposes were to find the right concentration of filler agent, and to evaluate the acceptance of the product based on sensory test. Raw vegetables were obtained from local grocery store and sprayed with controlled parameters, 180oC for inlet and 80oC for outlet temperature with 600ml/h feed rate. Maltodextrin (MD) were used as filler agent with concentration of 8, 10, and 12 percent. The powdered products were then analyzed for their moisture content and rehydration rate, and also sensory tested. Combined test results showed that the best MD concentration for each powdered juice base are: broccoli MD 10%, spinach MD 12%, and carrot MD 10%. Chosen powdered vegetable juices were then dry mixed and sensory tested to find the most acceptable formula. Powdered-juice formula that contains more carrot juice (60% carrot, 25% spinach, 15% broccoli, and 30% sugar) was found to be most preferred by consumers. However, it is suggested more research to be done in order to increase the solubility of the powdered juices and to increases consumers acceptance of the product.
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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