Judul: Analisis pengambilan keputusan konsumen dan brand positioning teh di wilayah perkotaan dan perdesaan (Kasus: Desa kalilotes, Kecamatan Kalikotes, Kabupaten Klaten, Jawa Tengah dan Kotamadya Yogyakarta, Daerah Istimewa Yogyakarta)
Abstrak: Peranan komoditas teh dalam perekonomian di Indonesia cukup strategis. Hal ini disebabkan karena komoditas teh mampu memberikan kontribusi terhadap negara terutama dalam usaha meningkatkan devisa negara dan menyerap tenaga kerja. Adanya kebijakan pemerintah yang ingin menggalakkan penerimaan devisa dengan mendorong produsen untuk berorientasi ekspor. Disamping itu, perkembangan ekspor teh di Indonesia sangat mengkhawatirkan karena terus menurun setiap tahunnya. Keadaan ini menyebabkan pangsa ekspor teh indonesia di pasar dunia.
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Judul: Analisis persepsi dan pilihan konsumen terhadap produk teh di Kota Bogor
Abstrak: Indonesia sejak dahulu dikenal sebagai negara penghasil perkebunan yang terbesar, salah santnya adalah komoditi teh. Teh dalam komoditi pertanian Indonesia digolongkan ke dalam tanaman pekebunan berumur panjang seperti tanaman karet, kelapa sawit, kopi, dan kakao. Produk teh yang dihasilkan Indonesia telah memiliki nilai tambah karena dijual bukan dalam bentuk daun segar, namun telah berbentuk serbuk atau produk siap pakai.
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Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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