Judul: Kajian potensi biji kelor (Moringa oleifera) sebagai koagulan
Abstrak: Adequate access to drinking water is still a huge problem for several countries. One of the reason is the high cost for water’s chemical treatment. Hence, there is a need for low cost and locally available materials. One of the natural coagulants that can be used as an alternative for synthetic chemicals is a seed of Moringa oleifera. In this research, by using the jar test method, the optimum coagulation condition of M. oleifera seed was obtained at pH 6 with concentration of 50 mg/L and settling time of 60 minutes. The optimum condition of M.oleifera unskinned seeds as a coagulant was at pH 7 with concentration of 80 mg/L and settling time of 60 minutes. Previously, optimum coagulation conditions for aluminium chlorohydrate (ACH) has been obtained at pH 7, 10 mg/L, and 10 minutes, respectively. The optimum conditions of each coagulant gave different responses in turbidity, iron and manganese contents decrease. The average values of turbidity reduction with M. oleifera seed, unskinned seed, and ACH were 99.10, 99.07, and 99.71% respectively. The average values of iron reduction for those coagulants were 98.30, 98.45, and 9.,98%, whereas the average values of manganese reduction were 77.87, 81.08, and 78.65%, respectively. Repeatability showed as relative standard deviations on the coagulation process using three types of coagulant on the measurement of three parameters above were below 10%.
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Judul: Analisis Kandungan Gizi dan Kapasitas Antioksidan Tepung Biji Kelor (Moringa oleifera) Terfermentasi
Abstrak: Moringa oleifera atau tanaman kelor merupakan spesies tanaman yang paling banyak dibudidayakan dari famili Moringaceae yang terdistribusi di negaranegara tropis dan subtropis. Hampir semua bagian dari tanaman kelor telah dimanfaatkan untuk konsumsi manusia. Biji Moringa oleifera memiliki keunggulan yaitu kandungan asam oleat serta asam amino metionin dan sistein yang tinggi dibandingkan dengan kacang-kacangan lain. Penelitian ini bertujuan dalam menganalisis dan membandingkan kandungan gizi tepung biji kelor berdasarkan perlakuan waktu fermentasi, kemudian menguji kapasitas antioksidan biji kelor terfermentasi tersebut. Terdapat 3 perlakuan fermentasi sebelum biji kelor diolah, yaitu fermentasi 24 dan 48 jam, serta tanpa fermentasi. Hasil menunjukkan bahwa semakin lama waktu fermentasi, persentase kadar protein, lemak, dan kapasitas antioksidan meningkat. Persentase protein dan lemak meningkat menjadi 34.99±0.02% dan 48.90±0.48%, sedangkan karbohidrat mengalami penurunan (9.32±0.50%). Kapasitas antioksidan meningkat menjadi 84.17±0.05 μg AEAC /g sampel serta total fenol menjadi 9104.54±74.16 μg GAE/g sampel.
Keyword: antioksidan, fermentasi, gizi, Moringa oleifera, proksimat

Judul: Sistem Navigasi pada Robot Pemadam Api Menggunakan Wall Following dan Logika Fuzzy
Abstrak: A robot needs a good navigation to complete its task. One way to provide navigation capabilities on robots is artificial intelligence. Navigation capabilities using artificial intelligence may be associated with the ability to accept input from a range of sensors. However, inputs from the environment are uncertain so that a simple modeling is not sufficiently representative. Fuzzy logic is expected to overcome these uncertainties. This research aims to develop the navigation system on a fire-fighter robot using wall following algorithms and fuzzy logic. The system is simulated on KRPAI 2013 environment where the robot is expected to move by following the wall, extinguishing the fire, and returning to home. It is shown that the robot has successfully completed the mission on KRPAI 2013 with a success rate of 87.5%.
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