Judul: Komponen Kimia Fraksi Polar Ekstrak Metanol Buah Sinyo Nakal (Duranta repens)
Abstrak: Various studies have been conducted to identify the bioactive components in leaves and bark of sinyo nakal (D. repens), but only few studies focusing on fruit extract. Phytochemical investigations on lipid-free fruit methanol extract showed the presence of flavonoid, alkaloid, saponin, tanin, and steroid. Fractionations of the methanol extract have been conducted through series of chromatographic separations including vacuum liquid chromatography, gravity column chromatography, and radial chromatography. Two fractions namely Hfg1 and Hi were analyzed with nuclear magnetic resonance (NMR) spectrophotometer. The 1H, 13C, and 2D correlation NMR analysis showed that Hfg1 fraction was trans-cinnamic acid, whereas the molecular structure in Hi fraction has not been elucidated yet because it still contained mixture of compounds.
Keyword: trans-cinnamic acid, Duranta repens, fractionation, sinyo nakal

Judul: Fraksi Nonpolar Ekstrak Metanol Buah Sinyo Nakal (Duranta repens)
Abstrak: Air-dried simplicia of Duranta repens from Jombang, East Java was extracted by maceration with n-hexane followed by re-extraction of the unsaponifialbe n-hexane ectract with methanol. Based on phytochemical test results, the unsaponifiable n-hexane extract contained only steroids as the secondary metabolite, wheres the methanol extract contained alkaloids, flavonoids, tannins, and steroids. Gas chromatogram-mass spectrum of the unsaponifiable n-hexane extract was dominated by alkanes with eicosane as the most abundant compound. Tannin-free methanol extract resulted 10 fractions by using vacuum liquid chromatography. Fraction B was further fractionated by radial chromatography yielding 6 fractions. Fractionation of fraction B2 using preparative thin layer chromatography obtained B21 and B22 fractions which showed single spot. The gas chromatogram-mass spectrum, however, still showed many compounds dominated by carboxylic acids and ketones, respectively.
Keyword: sinyo nakal, nonpolar, fractionation, Duranta repens

Judul: Egg drop syndrome 1976 ( EDS '76 )
Abstrak: Dalam Rancangan Pelita Ketiga (1979/80 - 1983/84) dijelaskan bahwa tujuan pembangunan antara lain adalah me ningkatkan mutu gizi pola komsumsi masyarakat melalui pe- ningkatan penyediaan karbohidrat, protein dan vitamin. Selain daging dan susu, telur adalah sumber protein hewani yang sangat penting. Oleh sebab itu dalam rangka peningkatan penyediaan protein pemerintah terus berusaha meningkatakan produksi telur dengan menggalakan peternak- an rakyat dan peternakan komersil yang telah maju. Peter- nakan yang telah maju dapat berfungsi sebagai pusat latih an dan pengembangan usaha peternakan rakyat disekitarnya. Mereka dapat sebagai sumber bibit dan tehnologi bagi pe ternakan rakyat. Menurut data dari Bulletin Statistik dan Ekonomi. Ter nak (1981) produksi telur dari Repelita I sampai Repelita III terus meningkat. Dalam Repelita I terdapat kenaikan produksi telur +4,2% per tahun. Dalam Repelita II produk- si telur meningkat +13,8% per tahun dan dalam 2 tahun Re- pelita III (1979-1980) terdapat kenaikan rata-rata produk si telur +6,93% per tahun. ...
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