Uji Sifat Fisika Dan Kimia Susu Sapi Terpapar UV dengan 1,3,5 Sirkulasi

Hariono, Budi and Utami, Merry Muspita Dyah and Bakri, Abi and Sutrisno, Sutrisno (2018) Uji Sifat Fisika Dan Kimia Susu Sapi Terpapar UV dengan 1,3,5 Sirkulasi. Jurnal Ilmiah Inovasi, 18 (2). pp. 63-67. ISSN 1411-5549

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Abstract

The research objective is the circulation of the physics and chemistry is exposed to UV ray cow milk. Discharge of milk 4.32±0.71 cc/seconds passed ultraviolet reactor 30,000 doses µw/s/cm2 with circulation of 1, 3 and 5 times and control remedial treatment by three times. Research parameters covering : (1) physical properties (viscosity, specific heat, conductivity, pH, moisture content, and the specific gravity), (2) chemical properties (fat content, solid non fat, freezing point, protein and lactose content). The result shown physical and chemical properties not significantly different from control.The properties physics characteristic control, one, three and five circulation respectively are: (a) specific heat 3.87±0.0018; 3.88±0.0011; 3.90±0.0011; 3.90±0.0015 kJ/kgoC, (c) conductivity 3.11±0.155; 3.29±0.07; 4.57±0.025; 3.78±0.03 mS, (d) pH 6.37±0.065; 6.44±0.04; 7.14±0.005; 7.30±0.01 (e) moisture content 87.87±0.07%; 88.17±0.045%; 89.13±0.045%; 89.31±0.06% and (f) specific gravity 1.025±0.0; 1.0262±0.0; 1.0227±0.0; 1.0268±0.02 g/cm3. The characteristic of chemistry to treatment control, one, two and three circulation respectively are: (a) fat 4.02±0.06%; 3.64±0.055%; 3.55±0.055%; 3.48±0.07%,  (b) solid non fat 8.11±0.01%; 8.20±0.01%; 7.33±0.01%; 7.21±0.01%, (c) freezing point (-0.408) ±0.0015oC; (-0.499)±0.0005oC; (-0.442)±0.0005oC; (-0.534)±0.0055oC, (d) protein 3.16±0.005%; 3.20±0.005%; 2.86±0.005%; 3.37±0.025%, and lactose 4.28±0.005%; 4.32±0.005%; 3.86±0.005%; 4.54±0.03%.

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