Judul: Efek Tepung Delima (Punica granatum L.) sebagai Sumber Antioksidan pada Metabolisme Tikus Putih (Rattus norvegicus) yang Dikontaminasi Asap Rokok, Effect of Pomegranate Powder as Antioxidant Source on Metabolism of White Rat (Rattus norvegicus) Contaminated with Cigarette Smoke
Abstrak: The effect of pomegranate fruit and seed powder as a source of antioxidant on consumption, digestion of lipid and crude fiber are evaluated in this study. Thirty of 28 day old rats were used in this experiment. This experiment used completely randomized design with three treatments and ten replications. The experimental rats were given diets containing pomegranate at levels of 0% (R0= control diet), 5% (R1= R0 containing 5% pomegranate fruit and seed powder) and 10% (R2= R0 containing 10% pomegranate fruit and seed powder). Variables measured were ether extract, crude fiber, NFE intakes and digestibilities and abdominal circumference. Data were analyzed with Analysis of Variance (ANOVA) and differences among treatments were tested by contrast orthogonal tests. Results show treatments affected nutrient intakes (P<0.01), but did not produced significant effect on nutrient digestibilies. There were no significant effect of treatments on the change in abdominal circumference. In conclusion, the use of pomegranate fruit and seed powder increased fat and carbohydrate intake in mice contaminated with cigarette smoke; however there were no effect on fat and carbohydrate digestibilities, and the change in abdominal circumference. The best result was produced by R1 which contained 5% pomegranate fruit and seed powder.
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Judul: Aktivitas Fraksi Polifenol Buah Delima (Punica granatum L.) terhadap Peroksidasi Lipid Darah Tikus yang Diinduksi Parasetamol
Abstrak: Pomegranate (Punica granatum L.) has been reported to have the higher antioxidant activities than other medicinal plants. The aim of this study was to investigate polyphenol fraction activities from pulp pomegranate against blood lipid peroxidation (TBARS) in rats induced by paracetamol. Twenty two rats were divided into 7 groups. One normal group induced aquades and six treatment groups induced paracetamol (500 mg/KgBW) during 34 days. Positive control group of treatment induced Cursil®70 (13.3 mg/KgBW), and another groups induced polyphenol fraction doses 13.3 mg/KgBW, 100 mg/KgBW, 250 mg/KgBW, and 500 mg/KgBW, respectively. Polyphenol were extracted by acetone:water:acetic acid (90:9.5:0.5). TBARS was reacted by thiobarbituric acid (TBA) 1% and analysed by spectrophotometer in λ=532 nm. Polyphenol yields have got 36.2%. Paracetamol inductions as long as 34th days increased TBARS levels 120.66%. The PC and FD13.3 decreased TBARS 8.14% and 10.45% not significantly (p=0.548). FD100, FD250, and FD500 decreased TBARS 18.18%, 33.23%, and 41.84% (p<0.05), respectively.
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Judul: Formulasi Hamiltonian untuk Menggambarkan Gerak Gelombang Soliter Dimensi Tiga di Permukaan Laut
Abstrak: Gelombang permukaan adalah gelombang yang terjadi perbedaan rapat massa antara air dan udara. Salah satu gelombang permukaan yang ditinjau adalah gelombang soliter. Formulasi gelombang soliter dilakukan dengan menggunakan formulasi Hamiltonian.
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