Judul: Komposisi Asam Lemak, Kolesterol, dan Deskripsi Jaringan Fillet Ikan Kakap Merah (Lutjanus argentimaculatus) Segar dan Goreng
Abstrak: Red Snapper (Lutjanus argentimaculatus) is a type of fish that usually consumed by people. The aim of this research was to determine the composition of fatty acid, cholesterol and tissues description on fresh and fried of red snapper fillet. Fresh red snapper had mosture content 79.31%, 1.92% ashes, 16.30% protein, 0.05% fat and carbohydrates 0.23%. Then after frying, the mosture changed into 62.49%, ashes 1.98%, protein 28.40%, fat 2.17%, and carbohydrates 5.62%. The highest compound of saturated fatty acid on red snapper were myristic acid (C14:0), palmitic acid (C18:0), and stearic acid (C18:0). The highest compound of monounsaturated fatty acid were palmitoleat acid (C16:1) and oleic acid (C18:1). The highest compound of polyunsaturated fatty acid were linoleic acid (C18:2), linolenat acid (C18: 3), arakidonat acid (C20:4), EPA (C20:5) and DHA (C22:6). Cholesterol content has changed of 20 mg/ 100 g to 60 mg/ 100 g after frying. Tissues structure of fresh red snapper seemed not compact because of decline quality meat, but fried flesh of red snapper seemed more compact.
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Judul: Profil Asam Lemak, Kolesterol, dan Jaringan Skin On Fillet Ikan Kakap Putih (Lates calcarifer) Segar dan Panggang.
Abstrak: Ikan kakap putih (Lates calcarifer) merupakan salah satu ikan yang memiliki nilai ekonomis tinggi dan mengandung asam lemak tidak jenuh yang baik untuk tubuh. Penelitian ini bertujuan untuk menentukan kadar proksimat (air, protein, lemak, abu, karbohidrat), asam lemak, kolesterol, dan struktur jaringan skin on fillet ikan kakap putih segar dan panggang. Proses pemanggangan dilakukan pada suhu 180 ºC selama 20 dan 30 menit. Skin on fillet kakap putih mengandung 18 jenis asam lemak yang terdiri atas 9 jenis SFA, 4 jenis MUFA, dan 5 jenis PUFA. Jenis SFA tertinggi adalah asam palmitat dengan kadar sebesar 19,81% pada fillet kakap segar dan 16,78% pada fillet kakap panggang. Jenis MUFA tertinggi adalah asam oleat dengan kadar sebesar 12,40% pada fillet kakap segar dan 10,43 % pada fillet kakap panggang. Jenis PUFA tertinggi adalah DHA dengan kadar sebesar 4,65% pada fillet kakap putih segar dan 4,30% pada fillet kakap putih panggang. Kadar kolesterol fillet kakap putih segar sebesar 363 mg/100g menjadi 245,11 mg/100g setelah dipanggang.
Keyword: asam lemak, Lates calcarifer, pemanggangan, jaringan

Judul: A Continuous Vaccination Strategy in the SVIR Epidemic Model
Abstrak: Vaccination is conducted to minimize the spread of a disease. The vaccination is usually done several times within a fixed time interval. In the SVIR model, it is assumed that individuals do not get immediate immunity following a vaccination program. So according to process of vaccination on SVIR model, there are two strategies, i.e. the continuous vaccination strategy (CVS) and the pulse vaccination strategy (PVS). In this study, only the CVS strategy in epidemic model SVIR is considered. Results of the study indicate that dynamics of the CVS system depends on the basic reproductive number. If the basic reproductive number is less than one, then the disease-free fixed point is asymptotically stable. It means that the disease will eventually disappear from the population. Conversely, if the basic reproductive number is greater than one, then the endemic fixed point is asymptotically stable, which means that the disease will remain exist in the population. Simulation result shows that the vaccination would minimize the spread of disease by reducing the basic reproductive number. If the time for the vaccinated recipients to obtain the immunity, as well as a possibility of vaccinated recipients to be infected are neglected, then the disease will be eradicated. This condition is called an over-evaluating effect of vaccination.
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