Judul: Pemanfaatan Tepung Sukun (Artocarpus Altilis Sp.) pada Aneka Kudapan sebagai Alternatif Makanan Bergizi Program PMT-AS
Abstrak: The aim of this research was to utilize breadfruit flour in production of nutritious snack foods for School Supplementary Feeding (PMT-AS) programme. There were three products developed in this study, is brownies, pia, and croquette. The research was conducted using experimental design. The proportions of breadfruit flour and wheat flour were different for each product, which brownies was formulated using 70:30, 80:20, 90:10, and 100:0; whereas bakpia and croquette was formulated by 50:50, 60:40, 70:30, and 80:20. According to organoleptic test, selected products were brownies with 90% breadfruit flour, pia with 60% breadfruit flour, and croqquette with 60% breadfruit flour. Proximate analysis showed that 100 grams brownies contained 409 Kcal energy and 7,5 grams protein, 100 grams pia had 383 Kcal energy and 6,7 grams protein and croquette had the highest energy and protein content is 455 Kcal and 9,9 grams protein. In conclusion, all products are suitable as alternative snacks for PMT-AS programme. The products have fulfilled 300 Kal energy and 5 grams protein per serving size. Considered also the cost of production, these products have fufilled criteria to be used in PMT-AS programme
Keyword: 

Judul: Mutu dan potensi roti manis sebagai pangan fungsional dengan substitusi tepung pisang modifikasi
Abstrak: Banana (Musa paradisiaca) is a nutritious and contain high carbohydrate content. One of the banana plantains type is uli variety which is found abundant in Bogor. Plantains are suitable to be processed into banana flour because of their high carbohydrate content. Banana flour is a potential food ingredient as prebiotic source (RS). The resistant starch (RS) content as the prebiotic in banana flour could be increased by starch modification. Modified banana flour (MBF) was prepared by spontaneous fermentation and autoclaving-cooling. In this study the MBF was applied to substitute the wheat flour in sweet bread making. The sweet bread was prepared using several substitutions of MBF in example a 20%, 30% and 40% from total weight of flour. To obtain the best substitution of MBF, the sensory properties of sweet breads were then evaluated by the panelist using hedonic rating and ranking test. Objective test was also conducted to analyze the color and texture of the bread. The result showed that sweet bread made of 20% MBF substitution was the most preferred product and contained higher RS (1.45%), dietary fiber (4.52%) and had lower starch digestibility (45.63%) than product without MBF substitution. The controlled sweet bread only contained 0.55% (w/v) RS, 2.43% dietary fiber and 85.53% of starch digestibility. These results suggested that sweet bread made of 20% MBF substitution was potential as functional food due to its high RS and dietary fiber contents and low digestibility value which are suitable for people on diet or diabetic patients and also promote healthy digestive tract as prebiotic.
Keyword: 

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
Keyword: