Judul: Effect of Storage Time on Dielectric Properties of Quail Eggs
Abstrak: Telur puyuh merupakan salah satu bahan makanan yang banyak dikonsumsi oleh masyarakat di Indonesia. Penelitian ini bertujuan menguji telur puyuh dengan lama waktu penyimpanan secara non destruktif menggunakan pengukuran sifat dielektrik yaitu spektroskopi impedansi. Spektroskopi Impedansi adalah teknik analitis untuk mendeteksi sifat listrik jaringan atau sel. Metode ini dapat menunjukkan informasi mengenai kuantitas sel dan fisiologi sel, karena ada korelasi antara sifat listrik sel dan keadaan fisiologisnya. Hasil pengukuran yang diperoleh selanjutnya dianalisis untuk menentukan impedansi dan konstanta dielektrik untuk sampel dengan perlakuan waktu penyimpanan berbeda. Nilai impedansi (riil dan imajiner) dan dielektrik (riil dan imajiner) telur puyuh mengalami kenaikan pada frekuensi rendah dan mengalami penurunan pada frekuensi tinggi. Secara umum nilai impedansi dan dielektrik telur puyuh pada hari 2 hingga hari 24 mengalami penurunan. Waktu penyimpanan sangat memengaruhi sifat dielektrik telur puyuh. Diketahui bahwa penurunan nilai impedansi riil dan imajiner telur puyuh secara signifikan terjadi pada frekuensi 200 Hz, 212 Hz, 225 Hz, 238 Hz, dan 252 Hz. Hal serupa juga dapat dilihat pada nilai konstanta dielektrik riil dan imajiner telur puyuh pada frekuensi tersebut., Quail eggs are a food ingredient that is widely consumed by people in Indonesia. This study aims to non-destructively test quail eggs with a long storage time by measuring dielectric properties, namely impedance spectroscopy. Impedance spectroscopy is an analytical technique for detecting the electrical properties of tissues or cells. This method provides information about cell quantity and physiology because there is a correlation between the electrical properties of cells and their physiological state. The measurement results were then analyzed to determine the impedance and dielectric constant for samples with different storage time treatments. The impedance (real and imaginary) and dielectric (real and imaginary) values of quail eggs increased at low frequencies and decreased at high frequencies. In general, the impedance and dielectric values of quail eggs from day 2 to day 24 decreased. Storage time greatly affects the dielectric properties of quail eggs. It is known that a significant decrease in the real and imaginary impedance values of quails eggs occurs the frequencies of 200 Hz, 212 Hz, 225 Hz, 238 Hz, and 252 Hz. The same thing can also be seen in the real and imaginary dielectric constant values of quails eggs at that frequencies
Keyword: dielectric properties, quail eggs, storage time.

Judul: Characteristics of IPB-D1 Chicken Eggs at Different Storage  Periods
Abstrak: Telur ayam ras dan telur ayam lokal menjadi pilihan masyarakat Indonesia untuk memenuhi kebutuhan protein hewani. Akan tetapi, konsumsi telur ayam lokal lebih rendah dibandingkan telur ayam ras. Pemanfaatan telur ayam lokal dapat ditingkatkan dengan salah satu temuan galur ayam baru yakni ayam IPB-D1 yang merupakan silangan antara ayam ras dan ayam lokal yang berpotensi menjadi ayam dwiguna dan produktif dalam menghasilkan telur dibandingkan ayam lokal lain. Penelitian mengenai suhu dan lama penyimpanan yang berbeda pada telur ayam IPB-D1 belum pernah dilakukan sehingga penelitian ini diharapkan dapat memberikan informasi awal mengenai kualitas interior, karakteristik fisikokimia dan mikrobiologi telur ayam IPB-D1 selama penyimpanan. Penelitian dengan dilakukan percobaan rancangan acak lengkap dengan menyimpan telur ayam IPB-D1 pada suhu ruang dan suhu refrigrator dengan lama penyimpanan 0, 4, 8, 12 dan 16 hari. Dilakukan analisis terhadap kualitas eksterior berupa penurunan berat telur, kualitas interior, fisikokimia dan mikrobiologi berupa TPC. Hasil penelitian menunjukkan kualitas eskterior, kualitas interior dan fisikokimia mengalami penurunan kualitas serta total plate count yang masih berada pada ambang batas cemaran mikroba., Purebred chicken eggs and local chicken eggs are the choice of the Indonesian people to fulfill their needs for animal protein. However, consumption of local chicken eggs is lower than purebred chicken eggs. Utilization of local chicken eggs can be increased by one of the findings of a new chicken strain, namely the IPB-D1 chicken which is a cross between purebred chicken and local chicken which has the potential to become a dual-purpose chicken and is productive in producing eggs compared to other local chickens. Research on different temperatures and storage times on IPB-D1 chicken eggs has never been carried out so this research is expected to provide initial information about interior quality, physicochemical and microbiological characteristics of IPB-D1 chicken eggs during storage. The research was carried out in a completely randomized design experiment by storing IPB-D1 chicken eggs at room temperature and refrigerator temperature with long storage 0, 4, 8, 12 and 16 days. Analysis was performed on exterior quality with variable egg’s weight loss, interior quality, physicochemical and microbiology with variable total plate count. The results showed that the exterior, interior and physicochemical quality of IPB-D1 chicken eggs decreased as well total plate count which is still at the threshold of microbial contamination.
Keyword: eggs, IPB D1 chicken, storage time, temperature

Judul: Penyusunan Overlap Graph menggunakan Suffix Tree pada DNA Sequence
Abstrak: The DNA sequence assembly is very important in genome analysis. This step aims to reconstruct contigous DNA fragment (contigs) from short fragment by concatenating fragments based on the overlap region among them. This method employs overlap graph for solving the problems. In this graph, nodes represent fragments and edges represent overlap. This research developed a software for constructing overlap graph using suffix tree. The evaluation was conducted by measuring the number of nodes, number of edges, and the execution time in many values of minimum overlap. The minimum overlap is defined as the minimum length of substring which is considered as the overlap region between two fragments. The evaluation results showed that the number of nodes, the number of edges, and the execution time were increased with the decreasing of the minimum overlap value.
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