ITP330-Emerging New Food Processing Technology
ITP330-Emerging New Food Processing Technology
ITP330-Emerging New Food Processing Technology
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PEMANASAN OHMIC<br />
elektroda<br />
BAHAN<br />
S Power<br />
Supply<br />
P = I 2 R<br />
P : laju jumlah panas yang diproduksi<br />
per satuan volume (W.m - 3 )<br />
P = I 2 k<br />
-1<br />
e E : kekuatan medan listrik (Volt cm - 1 )<br />
I = k k : konduktivitas listrik (ohm - 1 /m , e EL -1<br />
e S/m)<br />
I : densitas arus listrik (amps/m 2 )<br />
R : tahanan listrik (ohm - 1 )<br />
- kecepatan pemanasan tergantung t pada nilai i k e bahan pangan<br />
-k e bahan pangan =f(kadar air, garam ionik dan asam)<br />
-k e bahan pangan cair >> k e bahan padat<br />
- minyak dan lemak mempunyai nilai k e sangat rendah<br />
Purwiyatno Hariyadi - <strong>Emerging</strong> <strong>New</strong> <strong>Processing</strong> <strong>Technology</strong> in <strong>Food</strong>s – <strong>ITP330</strong>
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