Judul: Keberadaan Salmonella spp. Pada Telur Ayam Dan Telur Bebek Yang Dijual Di Pasar Tradisional Di Provinsi Jawa Barat
Abstrak: This study was aimed to observe the occurance of Salmonella spp. in layer and duck eggs, and gave information of wet markets sanitation and hygiene in traditional markets of West Java Province. The study consist of two parts, field questionnaires and laboratory work. Data questionnaires was obtained from 35 egg retailers in West Java. Detection of Salmonella consisted of layer eggs (n=25) and duck eggs (n=10) were taken purposively from wet markets and determineted according to the Compendium of Methods for the Microbiological Examination of Foods. The result showed that the occurance of Salmonella in layer and duck eggs were 4% and 0%, respectively.
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Judul: Incidence Salmonella spp.in chicken meat sold at the markets in West Jakarta
Abstrak: This research was aimed to know the existence of Salmonella spp. in chicken meat, handling implementation of chicken meat and water utilized in supermarkets and traditional markets of West Jakarta .. A sum of 300 samples consist of 200 samples of 20 supermarkets (80 samples of chicken meat, 100 samples of swab and 20 samples of water) while 100 samples from 10 traditional markets (40 samples chicken meat, 40 samples swab and 20 samples of water) were tested on the existence of Salmonella spp. SNI 19-2897-1992, method of identification. The testing product indicated that 19 (23,75%) samples from 80 chicken meat samples taken from supermarkets were contaminatied by Salmonella spp,.while in traditional market were negative from Salmonella spp .. Observation against sanitation and hygiene factors of supermarket was done with interviews and filling questionairies. Datas from this observation were analyzed by testing of chi-square to know the association of the factors sanitation and hygiene and contamination of Salmonella spp. of chicken meat. The test result showed that there were significant association between sanitation and hygiene factors with the presence of Salmonella spp. in chicken meat at supermarkets.
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Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: sifat optik, litium niobat, chemical solution deposition, kecepatan putar