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Yosephina Ardiani S
Jurusan Kesehatan Lingkungan Poltekkes Bandung

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Perbedaan Variasi Suhu dan Lama Pemanasan Terhadap Angka Total Kuman Susu Murni Pada Pedagang Susu Hangat Di Wilayah Kecamatan Cimahi Utara Yosephina Ardiani S; Ad Hadi
VISIKES: Jurnal Kesehatan Masyarakat Vol 15, No 1 (2016): Visikes
Publisher : Dian Nuswantoro Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (787.035 KB) | DOI: 10.33633/visikes.v15i1.1397

Abstract

Milk is a food that contains the main nutrient for human needs but also as a medium suitable for microorganisms to multiply both pathogenic and non-pathogenic. Milk that has been contaminated with pathogenic bacteria can cause illness if consumed. Good handling can suppress contamination of microorganisms, such as by heating. This study aims to determine differences in variations in temperature and prolonged heating of the total number of germs in the pure milk warm milk traders in the District of North Cimahi. The type of research is applicable to the two experimental heat treatment temperature is 65oC and 75oC for 30 minutes for 15 seconds. Its population is whole milk sold by merchants of warm milk in the District of North Cimahi. Milk samples were used for each treatment equal to 250 ml. Data were collected by observation and laboratory tests. Data were analyzed using T test dependent. The results of this study indicate that the total number of germs in the group before the heat treatment temperature ranges from 65oC for 30 minutes 2,17x103-3,23x106 colonies/ml and groups prior to heat treatment temperature ranges from 75oC for 15 seconds 2,97x103-3,29x106 colonies/ml while the total number of germs in the treatment group after heating for 30 minutes 65oC temperature range between 8x101-4,9x104 colonies/ml and the total number of germs in the group after heating for 15 seconds 75oC temperature range between 2x101-3,4x104 colonies/ml. Dependent T test results obtained by value P value of 0.005 (<95% α=0.05). Thus statistically significant difference between the temperature of 65oC for 30 minutes and the temperature of 75oC for 15 seconds to the total number of germs milk. Traders are advised to use warm milk variations in temperature and prolonged heating temperature of 75oC for 15 seconds by lowering the total number of germs on pure milk is greater.The recommendation is doing further research on the relationship between of the handling of milk and the total number of germs in milk.Keywords: temperature, time of heating, germs, milk
Asam Laktat Hasil Fermentasi Limbah Kubis Menghambat Angka Lempeng Total dan Mempertahankan Kualitas Fisik Ikan Segar Yosephina Ardiani S; M Fadhil
VISIKES: Jurnal Kesehatan Masyarakat Vol 16, No 2 (2017): VisiKes
Publisher : Dian Nuswantoro Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (821.357 KB) | DOI: 10.33633/visikes.v16i2.2238

Abstract

Fish is a food that is consumed by many people, but fish quickly rot due to the activity of microorganisms so that it can be classified into high perishable food groups. Fish preservation can be done by natural preservation using lactic acid fermented cabbage. The purpose of the study was to determine the concentration of lactic acid most effective against the total plate number and physical quality of fresh fish. This was an experimental research. The purposivesamplng technique was use to find fresh fish from the place of fish auction in the Cirebon city. The Sample weight is 100 - 200 grams. The three lactic acid concentrations were used in this study: 15%, 20% and 25%. The total data of germs measured by laboratory tests and physical quality was carried out by organoleptic tests. Bivariate analysis was used to determine the effect of lactic acid on total plate numbers using the One way Anova test and the effect of lactic acid on physical quality was analyzed using the Friedman Test. There was a significant difference between the concentration of lactic acid solution to the total plate number of fresh fish. The 25% lactic acid concentration can reduce the total plate number below the threshold value. The concentration of lactic acid solution does not affect the taste, color and texture of fresh fish and affects the aroma or smell of fresh fish.Keywords: lactic acid, cabbage, fresh fish quality