Mayangsari, Agata Kiki (2018) Studi Pengaruh Lama Penyimpanan Terhadap Nilai Impedansi Yogurt. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian ini bertujuan untuk menganalisa pengaruh lama penyimpanan terhadap nilai impedansi listrik yogurt. Metode yang digunakan pada pengukuran nilai impedansi listrik pada yogurt berupa rangkaian chamber dengan empat elektroda yang terbuat dari emas dan alat picoscope tipe S5000. Pengukuran dilakukan dengan arus yang diinjeksi secara AC sebesar 100 μA dalam rentang frekuensi 1 Hz – 1 MHz. Hasil penelitian didapatkan bahwa frekuensi yang diberikan saat pengukuran memengaruhi nilai impedansi listrik. Gelombang yang ditampilkan pada frekuensi 1 Hz – 100 Hz dapat diamati secara jelas. Lama penyimpanan memengaruhi hasil dari impedansi yogurt. Nilai impedansi yogurt pada lama penyimpanan 0 hingga 18 jam mengalami peningkatan pada frekuensi yang stabil terukur sebesar 3020,33– 78.50 dan 5868,33 – 108,15 .
English Abstract
This study is supposed to analyze the effect of storage time on the value of electrical impedance of yoghurt. Methods used in measurement of electrical impedance be in the form of chambers with four electrodes made of gold and type S5000 picoscope device. Measurement made with injected current by AC in the amount of 100μA in frequency range between 1 Hz – 1 MHz. The result of this study is that the given frequency in the measurement affected the value of electrical impedance. The wave which is shown in frequency between 10 Hz – 100 Hz could be clearly observe. Time of storage affected the result of impedance of yoghurt. The value of impedance in yoghurt which is storaged between 0 – 18 hours has increasing amount on stable frequency which is measured in the amount 3020,33 - 78,50 and 5868,33 – 108,15.
Item Type: | Thesis (Sarjana) |
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Identification Number: | SKR/MIPA/2018/235/051806172 |
Uncontrolled Keywords: | Lama Penyimpanan, Yogurt, Impedansi / Storage time, Yoghurt, Impedance |
Subjects: | 600 Technology (Applied sciences) > 641 Food and drink > 641.3 Food > 641.37 Dairy and related products > 641.371 476 Yogurt |
Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika |
Depositing User: | Endang Susworini |
Date Deposited: | 12 Jun 2020 05:58 |
Last Modified: | 04 Aug 2020 04:27 |
URI: | http://repository.ub.ac.id/id/eprint/169003 |
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