Judul: Analisis Kadar Protein dan Kapasitas Antioksidan Daun Kelor  Segar (Moringa oleifera) Selama Penyimpanan Dingin
Abstrak: Daun kelor (Moringa oleifera) memiliki potensi pemanfaatan sebagai sumber antioksidan dan protein yang tinggi. Senyawa antioksidan yang terdapat di dalam daun kelor adalah vitamin C, vitamin E, karotenoid, tanin, triterpenoid, flavonoid, saponin, dan alkaloid. Di Indonesia, daun kelor biasanya dimanfaatkan oleh masyarakat sebagai pangan olahan atau obat herbal. Akan tetapi, daun kelor mudah mengalami kerusakan setelah dipanen serta penyimpanan yang terlalu lama juga dapat mempengaruhi kadar protein dan kapasitas antioksidannya. Tujuan penelitian ini untuk mengkaji pengaruh jenis kemasan daun kelor segar (plastik polypropilen dan kertas HVS) dan lama penyimpanan daun kelor segar (0, 2, 4, 7, dan 14 hari) pada suhu rendah terhadap kadar protein dan kapasitas antioksidan. Pada penelitian ini, daun kelor segar yang dikemas dengan plastik PP dapat mempertahankan karakteristik fisik (warna) dan kimia (kadar protein dan kapasitas antioksidan) lebih baik selama penyimpanan. Perbedaan lama penyimpanan dan jenis kemasan memberikan pengaruh yang berbeda nyata (p<0.05) terhadap nilai kadar air, kadar abu, total protein, protein terlarut, kapasitas antioksidan, dan total fenolik daun kelor segar. Semakin lama daun kelor segar disimpan pada suhu rendah (4-8°C) maka nilai rata-rata kadar air, total protein, kapasitas antioksidan dan total fenolik semakin rendah, sedangkan nilai rata-rata kadar abu dan protein terlarut semakin tinggi., Moringa leaves (Moringa oleifera) have the potential to be used as a source of antioxidants and high protein. The antioxidant contained in Moringa leaves are vitamin C, vitamin E, carotenoids, tannins, triterpenoids, flavonoids, saponins, and alkaloids. In Indonesia, Moringa leaves are usually used by the community as processed food or herbal medicine. However, Moringa leaves could easily be damaged after harvesting and long strorage time can also affect protein levels and antioxidant capacity. The purpose of this study was to examine the effect of fresh Moringa leaves packaging types (polypropylene plastic and HVS paper) and storage time (0, 2, 4, 7, and 14 days) at low temperature on protein content and antioxidant capacity. In this study, fresh Moringa leaves packaged in PP plastic could retain their physical (color) and chemical characteristics (protein content and antioxidant capacity) better during storage. Differences in storage time and type of packaging gave significantly different effects (p<0.05) on the value of water content, ash content, total protein, dissolved protein, antioxidant capacity, and total phenolic content of fresh Moringa leaves. The longer time storage of fresh Moringa leaves at low temperatures (4-8°C), lower the average water content, total protein, antioxidant capacity and total phenolic content, while higher the average value of ash content and dissolved protein.
Keyword: Antioksidan, daun kelor, Penyimpanan suhu rendah, Kadar protein

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: Query Expansion based on Bilingual Dictionary Using Conditional Probability
Abstrak: Query expansion is a technique that can be used to bridge vocabulary gaps between queries and documents in the collection. With query expansion, user will be helped to formulate queries well so that user will optimize the search result. In this study, the expansion term was resulted from the translation of bilingual dictionary. Subsequently, several terms of expansion were elected based on the closeness of its relationship with the original query. This research showed that conditional probability can be used to select expansion term in bilingual translation method query expansion. The result of 1000 documents was more than 97% relevan document can be retrieved by this system. The more expansion term used, the larger number relevan document was retrieved.
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