Judul: Pengembangan Model Agroforestcape Berbasis Teknologi Blockchain untuk Mendukung Ketersediaan Pangan dan Kelestarian Lingkungan
Abstrak: Sistem agroforestri yang saat ini diterapkan di Indonesia masih menghadapi berbagai permasalahan terkait dengan efisiensi dan efektivitas rantai pasok. Oleh karena itu, pengembangan paradigma baru pengembangan agroforestri Indonesia yang bernama Agroforestcape (Agroforestry Landscape) berbasis teknologi blockchain sangat penting untuk mendukung ketersediaan pangan dan kelestarian lingkungan. Kajian ini dirumuskan bertujuan untuk mengembangkan sebuah konsep baru agroforestri di Indonesia yang efisien dan efektif serta mengaplikasikan teknologi blockchain dalam rantai pasok usaha agroforestri. Penelitian dilakukan dengan menggunakan metode desk study dan gap analysis. Agroforestcape dapat diterapkan melalui penggunaan komposisi tanaman sengon buto, jati, lamtoro, bakau, lada, padi, sagu, dan ubi kayu melalui tiga model penanaman yaitu 2D, 3D dan 4D agroforestry. Model penanaman Agroforestcape dapat berkontribusi dalam mendukung ketersediaan bahan pangan dan peningkatan kesejahteraan masyarakat. Konversi lahan pertanian menjadi agroforestri dapat meyerap karbon tiga kali lebih tinggi selama 20 tahun mendatang. Teknologi blockchain memungkinkan pengelolaan basis data agroforestri dapat dilaksanakan secara efisien dan efektif.
Keyword: Agroforestcape, rantai pasok, teknologi blockchain

Judul: Development of Agriblock Blockchain Platform for Traceability in Agricultural Products Supply Chain
Abstrak: Manajemen rantai pasok produk pertanian merupakan proses yang mencakup manajemen aliran informasi dan barang dari penangkar hingga ke konsumen akhir. Penerapan teknologi blockchain pada rantai pasok dapat meningkatkan nilai jual barang dan kepercayaan konsumen terhadap barang yang dibeli. Penelitian ini berfokus pada pengembangan platform blockchain Agriblock untuk meningkatkan ketertelusuran dalam rantai pasok produk pertanian, khususnya bawang merah. Platform blockchain Agriblock dikembangkan menggunakan NodeJs dengan bahasa pemrograman Typescript. Platform blockchain Agriblock yang dihasilkan terdiri atas tiga lapisan utama: infrastruktur, komputasi terdistribusi, dan platform. Lapisan infrastruktur meliputi komponen node, penyimpanan, dan jaringan pada blockchain. Lapisan komputasi terdistribusi mencakup komponen blok, transaksi, protokol konsensus, dan fungsi hash. Lapisan platform terdiri atas komponen REST API yang memfasilitasi komunikasi data dengan jaringan blockchain. Penelitian ini diharapkan dapat menjadi landasan awal dalam pengembangan platform blockchain yang difokuskan untuk manajemen rantai pasok produk pertanian., Supply chain management of agricultural products involves managing the flow of information and goods from breeders to end consumers. The use of blockchain technology in the supply chain can enhance the value of goods and increase consumer trust in the purchased products. This research focuses on the development of the Agriblock blockchain platform to improve traceability in the supply chain of agricultural products, especially shallots. The blockchain platform was developed using NodeJs with Typescript programming language. The resulting Agriblock blockchain platform consists of three main layers: infrastructure, distributed computing, and platform. The infrastructure layer includes node components, storage, and network of the blockchain. The distributed computing layer encompasses block components, transactions, consensus protocols, and hash functions. The platform layer consists of REST API components that facilitate data communication with the blockchain network. This research is expected to be an early foundation in the development of a blockchain platform that focused on agricultural product supply chain management.
Keyword: shallot, agriculture, Smallholder Palm Oil Supply Chain, traceability, blockchain

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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