Judul: Theory of Planned Behavior (TPB): Pengetahuan, persepsi, dan niat membaca label komposisi  produk pangan pada mahasiswa
Abstrak: Salah satu komponen label yang wajib dicantumkan pada produk pangan adalah komposisi. Label komposisi memberikan informasi mengenai daftar lengkap penyusun bahan pangan. Penelitian ini menggunakan disain penelitian cross sectional study yang bertujuan untuk menganalisis pengaruh karakteristik individu, karakteristik keluarga, pengetahuan dan persepsi mahasiswa terhadap niat membaca label komposisi produk pangan dengan menggunakan pendekatan Theory of Planned Behavior. Pemilihan lokasi penelitian dilakukan secara purposif dengan melibatkan 400 mahasiswa IPB yang dipilih menggunakan teknik multistage random sampling berdasarkan lapis jenis kelamin. Terdapat pengaruh persepsi, norma subjektif, dan kontrol perilaku terhadap niat membaca label komposisi. Tidak terdapat perbedaan nyata niat membaca label komposisi antara laki-laki dan perempuan., One of the important components that must be included on the label of food products is composition. The composition label provides complete information on the the list of food ingredient. This research used a design of cross sectional study to analyze the influence of individual characteristics, family characteristics, knowledge and perception students on intentions to read the label composition of food products using Theory of Planned Behavior approach. The research location was chosen purposively by involving 400 students who have been selected using multistage random sampling technique with gender as layers. The results showed perceptions, subjective norms, and behavioral control influenced significantly on reading intention of composition label. There was no significant differences of intention reading label composition between men and women.
Keyword: label komposisi, niat, pengetahuan, persepsi, theory of planned behavior

Judul: Analysis of Student Behavior Against Food Product Labels
Abstrak: Label pangan sangat penting untuk agribisnis pangan. Survey yang pernah dilakukan oleh Badan Perlindungan Konsumen Nasional terhadap konsumen di Indonesia tentang memperhatikan kelengkapan label produk pangan dalam beberapa tahun mengalami kenaikan namun masih tergolong rendah sehingga menunjukkan konsumen masih kurang peduli terhadap label pangan. Tujuan dari penelitian ini adalah untuk mengidentifikasi pengetahuan, persepsi, sikap, dan perilaku mahasiswa IPB terhadap label pangan dan menganalisis pengaruh pengetahuan, persepsi, sikap, dan perilaku mahasiswa S1 IPB terhadap label pangan. Penelitian ini menggunakan metode analisis deskriptif dan structural equation modeling dengan pendekatan partial least square (SEM-PLS). Hasil analisis deskriptif menunjukkan hampir seluruh responden memiliki pengetahuan awal tentang label pangan. Responden lebih banyak memperhatikan atribut harga dibandingkan label pangan. Lalu label yang sering diperhatikan oleh mahasiswa yaitu tanggal kadaluarsa dan urutan prioritas label pangan yaitu nama produk, tanggal kadaluarsa, dan label komposisi. Kemudian pengetahuan dan persepsi mahasiswa terhadap label pangan tegolong baik, sikap dan perilaku mahasiswa terhadap label produk pangan tergolong cukup baik. Hasil analisis SEM-PLS menunjukkan pengetahuan berpengaruh positif signifikan terhadap persepsi dan sikap, persepsi berpengaruh terhadap sikap, dan sikap berpengaruh terhadap perilaku mahasiswa.
Keyword: attitude, consumer behavior, food label, knowledge, perception, SEM-PLS

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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