Judul: Bioconversion and Characteristics of Black Soldier Fly Nutrition (Hermetia illucens) with Different Ratio of Protein and Energy Substrate
Abstrak: Media tumbuh akan mempengaruhi keberhasilan produksi dan kualitas nutrisi dari maggot Black Soldier Fly (Hermetia illucens). Tujuan dari penelitian ini adalah untuk mengevaluasi pengaruh biokonversi dan kandungan nutrisi maggot Black Soldier Fly (Hermetia illucens) dengan rasio protein dan energi substrat yang berbeda. Penelitian ini menggunakan rancangan acak lengkap dengan dua perlakuan dan enam ulangan. Perlakuan yang digunakan dalam penelitian ini adalah P1 = pakan protein rendah (protein : energi 21%:79%) dan P2 = pakan protein tinggi (protein : energi 26%:74%). Parameter yang diamati adalah kandungan nutrisi maggot yang meliputi bahan kering, abu, protein kasar, lemak kasar, serat kasar, gross energy, asam amino, biokonversi, dan korelasi nutrisi substrat terhadap nutrisi maggot. Data yang diperoleh dianalisis dengan independent sample T-Test dengan menggunakan software SPSS. Hasil penelitian menunjukkan bahwa terdapat korelasi positif antara nilai biokonversi dan kandungan nutrisi substrat dengan maggot yang memiliki perbedaan nyata (P<0,05) pada kualitas nutrisi (protein kasar dan lemak kasar). Namun tidak menunjukkan hasil yang nyata (P>0,05) pada nilai biokonversi, kualitas nutrisi (abu, serat kasar, BETN, gross energy). Kesimpulannya, perbandingan kedua perlakuan protein serta energi substrat yang berbeda akan menghasilkan biokonversi yang tidak berbeda nyata. Perlakuan protein tinggi (79%:21%) lebih berpengaruh nyata terhadap nutrien maggot yang dihasilkan dengan kandungan protein kasar lebih tinggi dan lemak kasar lebih rendah., The growth media will affect the success of the production and quality of nutrients from the maggot Black Soldier Fly (Hermetia illucens). The purpose of this study was to evaluate the effect of bioconversion and nutrient content of maggot Black Soldier Fly (Hermetia illucens) with different ratios of protein and energy substrates. This study used a completely randomized design with two treatments and six replications. The treatments used in this study were P1 = low protein feed (protein : energy 21%:79%) and P2 = high protein feed (protein : energy 26%:74%). The parameters observed were maggot nutrient content including dry matter, ash, crude protein, ether extract, crude fiber, gross energy, amino acids, bioconversion, and the correlation of substrate nutrients to maggot nutrients. The data obtained were analyzed by independent sample T-Test using SPSS software. The results showed that there was a positive correlation between the bioconversion value and the nutrient content of the substrate with maggot having a significant difference (P<0.05) in nutritional quality (crude protein and ether extract). However, it showed no significant results (P>0.05) on bioconversion value, nutritional quality (ash, crude fiber, BETN, gross energy). In conclusion, the two substrate treatments with different protein and energy ratios would result in different bioconversion. The high protein treatment (79%:21%) had a more significant effect on the maggot nutrients produced with a higher crude protein content and lower ether extract.
Keyword: bioconversion, maggot, nutrition, substrate

Judul: The Performance of Maggot Black Soldier Fly (Hermetia  illucens) on Different Carbohydrate Protein Ratio Substrates
Abstrak: Penelitian ini bertujuan mengevaluasi maggot yang diberi pakan dengan rasio karbohidrat protein yang berbeda. Penelitian ini menggunakan 2 perlakuan dan 5 ulangan, perlakuan substrat dengan rasio karbohidrat : protein 88%:12% (P1) dan 74%:26% (P2), substrat perlakuan diberikan sebanyak 2,25 kilogram selama pemeliharaan. Parameter performa yang diukur yaitu konsumsi bahan kering (BK), protein kasar (PK), lemak kasar (LK), serat kasar (SK) dan asam amino, bobot hidup, persentase prepupa, reduksi substrat, serta feed conversion ratio (FCR). Data dianalisis menggunakan sidik ragam T-Test (Independent Sample T-Test). Performa maggot BSF perlakuan P2 menunjukkan hasil yang nyata lebih tinggi (P<0,05) dibandingkan dengan perlakuan P1 pada parameter konsumsi BK dan PK, bobot hidup, persentase prepupa, reduksi substrat, serta FCR. Konsumsi asam amino esensial tertinggi yaitu leusin, lisin, dan threonin, sementara konsumsi asam amino nonesensial tertinggi yaitu asam glutamat, asam aspartat, dan glisin. Kesimpulannya, pemberian pakan rasio protein tinggi (74%:26%) menghasilkan performa paling baik dan optimal., This study aimed to evaluate maggots' performance that fed with different protein-carbohydrate ratios. This study used two treatments and five replications, substrate with ratio of carbohydrate and protein 88%:12% (P1) and 74%:26% (P2), 2,25 kilogram substrates was given to the maggot during cultivation. The performance parameters measured were consumption of dry matter (DM), crude protein (CP), ether exctract (EE), crude fiber and amino acids, maggot weight, percentage of prepupae, substrate reduction, and feed conversion rasio (FCR). Data were analyzed using a T-Test of variance (Independent Sample T-Test). The performance of BSF larvae on P2 treatment were significantly higher (P<0.05) compared to the P1 treatment from consumption of DM and CP, maggot weight, percentage of prepupae, substrate reduction, and FCR. The highest consumption of the essential amino acids were lysine, isoleucine, and arginine, while the highest consumption of the non-essential amino acids were glutamic acid, aspartic acid, and alanine. In conclusion, maggot fed with high protein ratio (74%:26%) produced the best and most efficient performance.
Keyword: asam amino, black soldier fly, performa, rasio karbohidrat protein

Judul: Analisis dan Implementasi Certificate Authorities (CA) pada Public Switched Telephone Network (PSTN)
Abstrak: Secure Telephone Protocol has ability to authenticate involved party and keep the secrecy of the message sent over the protocol. The secrecy of the message archieved by using symmetric key cryptographic scheme, and authentication archieved using public key cryptographic scheme. One of several party involved in the protocol and hold an important function called Certificate Authorities or CA. CA responsible for generating public key pair for other party involved in the protocol. When CA generates public key pair, several primitive cryptographic scheme used for guarantee the security of the key. Two of them are hash function SHA-1 and El-Gamal public key scheme embedded in Digital Signature Algorithm scheme. The prototype implementing the scheme above developed using Java programming language with JCE addition from Bauncy Castle. The analysis towards implemented prototype indicates that the prototype still has some flaws to be implemented in real world.
Keyword: