Judul: Pengembangan Puding Instan Tinggi Fe sebagai Makanan Selingan untuk Remaja Putri
Abstrak: Anemia, which is a health problem mostly expressed at the adolescence stage, has not been effectively resolved and its contamination rate remains high nowadays. According to Depkes 2009, the prevalence of anemia at that stage was 33.7%. There are many ways to prevent the mentioned disease including iron fortification. The food product that was chosen as fortificant carrier in this research was pudding. The objective of this research was to develop a high-Fe pudding product for making snacks to be consumed by adolescence girl. Fe addition to the pudding product was set to an equal amount for all the formulas which was 30% RDA, and there were two main differences between the formulas: the kind of milk and sugar in each formula (based on Faridah, 2001). The results showed that milk and sugar had no impacts on coloring attributes, while they had impacts on aroma, flavor, and texture. It was found that the differences in formula affect the aroma, flavor, and texture of the pudding. Based on the acceptance considerations and the energy content, F1 was set as the selected product. The results of the two-way Analysis of Variance indicates that milk and sugar affect the moisture, ash, carbohydrates, and energy compositions while does not on fat and protein compositions. The results of the two-way Analysis of Variance exhibited that sugar affects the gel strength instead of milk.
Keyword: mikroenkapsulat Fe, fortifikasi, puding, anemia, Bogor Agricultural University (IPB)

Judul: Development of Sago (Metroxylon sp.) Muffin with Addition of Moringa Flour (Moringa oleifera L.) and Catfish Flour (Clarias gariepinus) for Female Adolescent
Abstrak: Anemia defisiensi besi yang dialami wanita di Indonesia, khususnya kalangan remaja, tergolong tinggi dengan prevalensi sebesar 27,2%. Konsumsi makanan dengan kandungan zat besi yang cukup dapat menjadi salah satu upaya untuk mengatasi anemia. Muffin merupakan salah satu jenis kue yang dikenal dan diminati masyarakat Indonesia pada berbagai kalangan. Penelitian ini bertujuan mengembangkan produk muffin dari tepung sagu (Metroxylon sp.), tepung kelor (Moringa oleifera L.), dan tepung ikan lele (Clarias gariepinus) sebagai makanan selingan yang berpotensi sebagai sumber zat besi untuk remaja putri. Penelitian dilakukan dari bulan Februari hingga April 2021. Taraf penggunaan tepung kelor dan tepung badan lele pada penelitian ini, antara lain F1 (30:20%), F2 (35:15%), dan F3 (40:10%). Hasil penelitian menunjukkan muffin dengan perbandingan tepung kelor dan tepung badan lele 30:20% (F1) merupakan formula terpilih. Kandungan energi muffin F1 per takaran saji memenuhi 10,4–10,7% kebutuhan energi remaja putri usia 13–18 tahun. Muffin F1 juga berpotensi sebagai sumber zat besi untuk remaja putri dengan kandungan zat besi sebesar 4,774 mg dalam 100 gram muffin., Iron deficiency anemia experienced by women in Indonesia, especially among adolescents, is relatively high with a prevalence of 27.2%. Consumption of foods with sufficient iron content can be an effort to overcome anemia. Muffins are one of the most popular cake in Indonesia. This study aims to develop muffins from sago flour (Metroxylon sp.), Moringa flour (Moringa oleifera L.), and catfish flour (Clarias gariepinus) as a potential iron-source snack for female adolescent. This study was conducted from February to April 2021. The ratio of Moringa flour to catfish body flour in this study were F1 (30:20%), F2 (35:15%), and F3 (40:10%). The results showed that muffin with the ratio of Moringa flour to catfish body flour 30:20% (F1) was chosen as the selected formula. The energy content of F1 muffin per serving is 10.4-10.7% of the energy needs of female adolescent aged 13-18 years. F1 muffin is also potential as an iron-source for female adolescent that contains 4.774 mg of iron in 100 grams of muffin.
Keyword: catfish flour, iron, Moringa flour, muffin, sago flour

Judul: Bifurkasi Hopf pada Model Siklus Bisnis Kaldor Kalecki tanpa dan dengan Waktu Tunda
Abstrak: Business cycle model is one of dynamical system models in economic. One of the business cycles model is Kaldor-Kalecki model. Kaldor-Kalecki business cycle model that is written in delayed defferential equations, is a business cycle model that involves gross product and capital stock of a company. In this paper Kaldor-Kalecki business cycle model is analyzed using both nondelay and delay in time of capital stock. By Taylor expansion for the time delayed model, an analysis of stability around the fixed points has been done. Furthermore, by using Hopf bifurcation theorem, it can be shown that there exists periodic orbits and limit cycle. In the nondelayed model, changing the parameter of goods market could lead to the occurrence of Hopf bifurcation and the existence of limit cycle. Similarly, for the delayed model, it has been shown that changing the time delay parameter may result in the occurrence of Hopf bifurcation and limit cycle.
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