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: 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: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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