Judul: Pengaruh Konsumsi Minyak sawit mentah Terhadap Kadar Retinol Plasma dan Aktivitas Enzim Penanda Kesehatan Hati pada Ibu Rumah Tangga di Kecamatan Dramaga Kabupaten Bogor.
Abstrak: Vitamin A deficency (KVA) in indonesia is still a major problem. Although the level heavy of vitamin A deficiency (xeropthalmia) has seldom encountered , but Subclinical KVA level, the levels that still had not show the real symptoms , can still be found especially in toddlers. Crude palm oil (CPO) has high content of carotenoids as a source of provitamin A. CPO is naturally red because it contains very high carotenoids, which until now has not been utilized in Indonesia. A programme to utilize CPO as a source of provitamin A was named SawitA programme. This programme aimed to help handling vitamin A deficiency in low income family by utilizing CPO as source of provitamin A. CPO contain high carotenoids and vitamin E which serves as antioxidant for the body. Antioxidants may reduce damage caused by oxidants by neutralize free radical, protect cells and prevent damage to lipids, proteins, enzymes, and DNA. Seventy respondents were selected for fed CPO for 2 months with a dose ±3,27 ml/day and their blood plasma from 22 healthy housewife respondents were analyzed by TFA method and using AST, ALT, ALP kits. The results showed 16 respondents displayed increased number of retinol plasma and decreased activity levels of AST, ALT and ALP enzymes. This research showed that CPO has antioxidant activity that can improve health of liver, so it can be alternative source of provitamin A for handling vitamin A deficiency in Indonesia.
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Judul: Pengaruh Konsumsi Minyak Sawit Mentah (MSMn) terhadap Penerimaan Sensori dan Kadar Retinol Binding Protein (RBP) Darah Responden Program SawitA
Abstrak: SawitA program is implemented in order to eliminate vitamin A deficiency utilizing CPO which is rich in carotenoid and scientifically proven to give health benefit to human body. This study focuses on the effect of CPO toward respondent acceptance and its health benefit in Babakan, Dramaga, and Sukadamai Village Bogor District. Home use test (HUT) was conducted to 72 respondents on consuming 2 – 3 mL per day CPO for 2 months. Most of the respondents are housewifes, on range 20-44 years old with elementary education backgrounds. Most of the family has low income (<250.000 rupiah) and high uniformity in food access. Acceptability analysis showed the respondent can accept CPO based on its colour (93%), taste (96%), and aroma (85%). By the consumption of 280 mL CPO will significantly increase RBP for 8,55% and 560 mL for 33,70-43,44% (α<0,05). The difference in CPO consumption is based on the difference in food consumption patten in each village and total family member who consumes CPO. Although CPO consumption is highly correlated to RBP increase (r=0,867, n=35,α<0.05). Thus, by consuming CPO is proven that it can help to fulfill retinol demand of respondents.
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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.
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