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composizione chimica, coagulazione presamica e resa del latte

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Ann. Fac. Medic. Vet. di Parma (Vol. XXIV, 2004) - pag. 327 - pag. 343<br />

Tabella 3 – Variazioni stagionali <strong>del</strong>la <strong>composizione</strong> <strong>del</strong> <strong>latte</strong> in caldaia: frazioni<br />

azotate e proteiche. Media±DS<br />

Table 3 – Seasonal variations of vat milk composition: nitrogen and protein fractions.<br />

Mean±SD<br />

N<br />

Inverno<br />

Winter<br />

Primavera<br />

Spring<br />

Estate<br />

Summer<br />

Autunno<br />

Autumn<br />

TOTALE<br />

TOTAL<br />

P<br />

NT, mg/100g 72 493,1±32,0 494,8±31,4 504,9±17,9 514,4±22,6 502,0±28,3 ns<br />

NCN, mg/100g 72 109,5± 7,4 a 112,3± 9,3 ab 115,6± 6,1 b 116,1± 6,8 b 112,9± 7,8 *<br />

NPN, mg/100g 72 24,9± 2,5 a 25,3± 4,1 a 26,4± 3,2 ab 27,2± 3,0 b 25,9± 3,2 *<br />

Proteina, g/100g<br />

72 2,99± 0,20 3,00±0,19 3,05± 0,11 3,11±0,14 3,04± 0,17 ns<br />

True protein<br />

Sieropr., g/100g<br />

Whey protein<br />

Caseina, g/100g<br />

Casein<br />

Caseina (ms)<br />

Casein (ms)<br />

72 0,54±0,04 0,56±0,05 0,57±0,03 0,57±0,04 0,56±0,04 ns<br />

72 2,45± 0,16 2,44±0,16 2,48± 0,10 2,54±0,11 2,48± 0,14 ns<br />

62 2,35±0,17 2,34±0,17 2,35±0,09 2,46±0,08 2,38±0,14 ns<br />

Ind. caseina, %<br />

Casein number<br />

72 77,80±0,54 77,30±1,09 77,10±0,99 77,44±0,75 77,50±0,85 ns<br />

a, b, differiscono per P

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