Judul: Physicochemical and Organoleptic Characteristics of Fermented Milk Like Dadih with Cinnamon (Cinnamomum burmannii) Extract Added
Abstrak: Salah satu produk yang telah melalui proses fermentasi adalah dadih. Dadih merupakan pangan tradisional yang diproduksi oleh masyarakat Minangkabau. Kayu manis dapat memperbaiki sifat organoleptik produk. Penelitian ini bertujuan menganalisis karakteristik fisikokimia dan organoleptik susu fermentasi menyerupai dadih yang ditambahkan ekstrak kayu manis (Cinnamomum burmannii) pada taraf 0%, 4%, 6%, dan 8%. Analisis yang dilakukan di antaranya analisis karakteristik fisikokimia (kadar air, viskositas, pH, kadar protein, kadar lemak, dan total asam tertitrasi) dan organoleptik. Penelitian ini dilakukan menggunakan uji deskriptif dan rancangan acak lengkap (RAL) dengan tiga kali pengulangan. Penambahan ekstrak kayu manis pada susu fermentasi menyerupai dadih berpengaruh terhadap kadar air, nilai pH, dan kadar lemak. Berdasarkan hasil analisis organoleptik, penambahan ekstrak kayu manis tidak disukai oleh panelis terhadap atribut aroma dan rasa, lalu penambahan ekstrak kayu manis berpengaruh nyata (P<0,05) terhadap semua atribut mutu hedonik., Dadih is a traditional food which produced by Minangkabau’s people through fermentation process. Cinnamon can improve product’s organoleptical properties. The purpose of the study was to analyze physicochemical and organoleptical properties of fermented milk like dadih with cinnamon (Cinnamomum burmannii) extract added at 0%, 4%, 6%, and 8%. The analysis for physicochemical (water content, pH, viscosity, protein content, fat content, and total titratable acid) and organoleptical properties has been done in this study. This study was used description test and completely randomized design (CRD) with three replications. The addition of cinnamon extract had an effect on the value of water content, pH, and fat content. The results of organoleptic analysis showed that the addition of cinnamon extract was disliked by the panelists on the flavor and the scent, the addition of cinnamon extract had a signifficant effect (P<0,05) on all hedonic quality attributes.
Keyword: Cinnamon Extract, Cow's Milk, Dadih, Fermented Milk

Judul: Pengaruh Penambahan Bahan Tambahan Pangan (BTP) yang Dikombinasikan dengan Bakteri Asam Laktat (BAL) terhadap Karakteristik Dadih Susu Sapi
Abstrak: A decrease in productivity of buffalo milk leads us to seek the other solutions to change it as raw material of dadih. Productivity of cow's milk which abundant makes it potential as an alternative to buffalo milk. The different characteristics, both physically and chemically between them causes the characteristic of dadih is also different. Fortification the food additives that combined with lactic acid bacteria in cow's milk, is expected to improve the characteristics of dadih. The purpose of this study was to determine the best combination of the use of food additives and lactic acid bacteria ,which can produce dadih with good characteristics. Based on the results of test determining the best concentration of cow's milk as raw material for dadih so cow’s milk need be evaporated until 50% (v / v). The best concentration of food additives is 100 ppm for enzyme papain, the enzyme renin 2 ppm, and crude enzyme extract of Mucor sp. 0.5 ppm. Analysis of physical, chemical, and microbiological showed that the best treatment is the enzyme renin 2 ppm in combination with 3% Lactobacillus casei. Dadih from this treatments has a viscosity 2278 cP; pH 5,63; total acid value 0,56%; water content 75,03%; protein content 6,80%; fat content 3,35%; carbohydrate content of 13,21%;and total BAL 6,90 x 1010 cfu / gram. The results also showed that all treatments produced dadih with total BAL > 1010 cfu/gram, so that these dadih can classified as a probiotic food. Hedonic test showed that the addition of the enzyme renin 2 ppm and 3% Lactobacillus casei has advantages in terms of taste (3,24), aroma (3,20), texture (3,60), and public acceptance (3,32). As for the color parameters, the treatment was scored still quite high (3,48).
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Judul: Implementasi Jaringan Peer-to-Peer Tak Terstruktur Menggunakan Protokol JXTA
Abstrak: Internet is useful for communication, exchanging information, and businesses. Most internet network is based on client-server system, which is a centralized network. The server acts as the center of network and has the ability to transfer data as requested by the client. In a client-server system, the network will be down if the server is busy or interrupted. This disadvantage can be solved by Peer-to-Peer (P2P) network. In P2P network, client or “peer” can communicate with other peers without relying on the server. One of the P2P network protocols is JXTA protocol, an open source protocol that can connect mobile devices or computers to P2P network. The objective of this research was to implement the unstructured P2P application by using JXTA protocol and additional peer group. In this research, the features of investigated P2P application were chatting within peer group, searching for files, and downloading files. It was found that these features can only be performed by peers that were directly connected to other peers in the same subnet. Furthermore, this research showed that the highest percentage of overhead file was 10.13% and the percentage of overhead protocol did not exceed 0.5%
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