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: Quality of Eggs Stored without Egg Trays in Room Temperature and Refrigerator Temperature
Abstrak: Telur merupakan pangan asal hewan dengan kandungan nutrisi yang lengkap, seperti protein, lemak, vitamin, dan mineral. Lama dan suhu penyimpanan dapat mengakibatkan penurunan kualitas telur. Penelitian ini bertujuan untuk mengevaluasi perubahan nilai Haugh Unit, indeks kuning telur, dan indeks albumin telur yang disimpan tanpa rak selama 21 hari. Penelitian ini menggunakan 40 butir telur ayam. Sebanyak 20 telur disimpan pada suhu ruang dan 20 telur lainnya disimpan pada suhu refrigerator. Seluruh telur disimpan dalam wadah tanpa diatur. Pengujian dilakukan terhadap nilai Haugh Unit (HU), indeks kuning telur (IKT), dan indeks albumin (IA) pada hari ke-0, ke-7, ke-14, dan ke-21 penyimpanan dari setiap suhu perlakuan. Setiap pengujian menggunakan 5 sampel telur. Desain penelitian menggunakan metode rancangan acak lengkap dua faktorial dan uji Tukey. Hasil penelitian menunjukkan terjadinya penurunan nilai HU, IKT, dan IA. Penurunan nilai HU, IKT, dan IA berbeda nyata (p < 0,05) antara suhu kamar dan refrigerator. Suhu dingin (refrigerator) dapat mempertahankan kualitas telur ayam., The egg is one of the food of animal origin containing complete nutrients, e.g., proteins, fats, vitamins, and minerals. Storage period and temperature can decrease egg quality. This study aimed to evaluate the change in Haugh Unit, yolk index, and albumin index of eggs that storaged for 21 days without egg tray. This study used forty chicken eggs. Twenty eggs were stored at room temperature, while the twenty other eggs were stored at refrigerator temperature. All eggs were put in bowl. The examination of eggs were carried out for Haugh Unit (HU), yolk index (YI), and albumin index (AI) at the storage of day 1, 7, 14, and 21 from each storage temperature. Every examination used 5 eggs. The study was designed using randomized block design with two factorials and Tukey test. This study showed that HU, YI, and AI of eggs in both temperature decreased. The decrease of HU, YI, and AI was significantly different (p < 0,05) between both temperatures. The storage of eggs in refrigerator could keep the quality of eggs.
Keyword: Haugh Unit, indeks albumin, indeks kuning telur, suhu refrigerator, suhu ruang

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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