Judul: Proses Pengeringan Sohun Dengan Menggunakan Oven Melalui Pemanasan Bertahap
Abstrak: Vermicelli is a type of noodle that is made from pure starch of sagoo or mung bean. Vermicelli has an appearance like a string, spongy and slick texture, also transparent. On vermicelli making process in small food industry, the drying technique is still using the natural technique which is with sun light. The usage of solar will cause inconsistency in quality of vermicelli and requires many labors and a big lot. These reasons encourage to conduct a research of vermicelli drying process with oven dryer through gradual drying. There were three heating treatments, which were A) 65oC – 10 minutes, 100oC – 10 minutes, and 140oC – 5 minutes, B) 80oC – 10 minutes, 100oC – 10 minutes, and 130oC – 5 minutes, C) 80oC – 15 minutes and 140oC – 10 minutes and the recommended drying treatment was the drying that used for sample B, which was drying technique with temperature 80oC – 10 minutes, 100oC – 10 minutes, dan 130oC – 5 minutes. The vermicelli that was produced by this treatment had characteristics water content 13.09%, cooking loss 11.67%, water absorption 74.56%, elongation 198%, L color 58.03, a -2.58, and b 9.21% which had the slightest differences on water content, cooking loss and elongation analysis with a vermicelli that had been produced by a manufacture (control). The difference between cost for solar drying and cost for oven drying was Rp 24,720,000 in producing 80 tons of vermicelli in a month. Oven drying can reduce the operational cost to 33% compared to solar drying.
Keyword: gradual drying, oven dryer, vermicelli, Bogor Agricultural University (IPB)

Judul: Optimasi Proses Pengeringan Sohun CV Panca Jaya Dengan Menggunakan Pengering Rak
Abstrak: Sohun is a non-wheat noodle product that is made with a typical shape from starch base material. Sohun can be categorized based on the used flour such as mung beans, sago, sugar palm, etc. CV Panca Jaya is one of the medium enterprises which produced sohun since 1984. Kembang Matahari® is a brand name of it. Drying process in this factory is still using sunlight as an energy system. It requires a lot of human resources and also a huge area, so a rising inflation will give direct impacts on the increasing components of cost production, especially on labor wages significantly. This study has done a simulation of sohun production process using cabinet dryer with software RSM (Response Surface Methodology). The result of the optimization process showed that cabinet drying gave similar product with sun drying
Keyword: optimization, cabinet dryer, sun drying, Sohun

Judul: Ekologi pecuk hitam (Phalacrocorax sulcirostris Brandt, 1931) di Taman Burung Kota Baru Bandar Kemayoran Jakarta
Abstrak: Kota Baru Bandar Kemayoran (KBBK) terletak di pusat kota Jakarta dan kaya akan avifauna. Di dalam kawasan ini direncanakan pengembangan suatu taman burung, yang selain berfungsi untuk perlindungan juga berfungsi untuk kegiatan rekreasi bersifat mendidik, khususnya rekreasi pengamatan burung (bird watching). Salah satu jenis burung yang menarik untuk diamati yaitu Pecuk Hitam (Phalacrocorax sulcirostris), yang merupakan jenis dominan dan sering dijumpai. Jenis ini mempunyai perilaku khas yang tidak dimiliki oleh spesies lain, yaitu tarian gerakan sayap untuk menarik pasangan (wing waving) dan gerakan membuka sayap membentuk sudut patah di bagian siku berbentuk delta winged disebut wing spreading. Berdasarkan pengamatan awal, populasi Pecuk Hitam tersebar pada hampir semua tipe habitat, meliputi: habitat rawa, habitat mangrove, habitat semak dan habitat waduk buatan, sehingga mudah dijumpai, terutama di waduk buatan. Kondisi ini sangat baik untuk pengembangan rekreasi pengamatan burung (bird watching).
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