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Table 3.

Physico-chemical parameters of bulk wines.

Parameter Sauvignon blanc Chardonnay Method [32]
Alcoholic strength, % vol. 13.35 13.15 OIV-MA-AS312-01A
Total titratable acidity, meq/l 77.84 87.44 OIV-MA-AS313-01
Volatile acidity, meq/l 8.16 5.50 OIV-MA-AS313-02
pH 3.26 3.42 OIV-MA-AS313-01
Free sulfur dioxide, ppm 40.30 34.75 OIV-MA-AS323-04A
Total sulfur dioxide, ppm 78.00 81.90 OIV-MA-AS323-04A
Molecular sulfur dioxide, ppm 1.51 0.90
Non-reducing dry extract, g/l 17.40 20.10 OIV-MA-AS2-03B
Total dry extract, g/l 19.80 21.70 OIV-MA-AS2-03B
Reducing sugars, g/l 2.40 1.60 OIV-MA-AS311-01A
Density, g/cm3 0.99040 0.99160 OIV-MA-AS2-01A
Total polyphenol index (TPI), AU 10.3 12.6 Spectrophotometrical
Pinking potential index 23.9 33.7 Iland, 2004

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