PT - JOURNAL ARTICLE AU - B. B. White AU - C. S. Ough TI - Oxygen Uptake Studies on Grape Juice AID - 10.5344/ajev.1973.24.4.148 DP - 1973 Jan 01 TA - American Journal of Enology and Viticulture PG - 148--152 VI - 24 IP - 4 4099 - http://www.ajevonline.org/content/24/4/148.short 4100 - http://www.ajevonline.org/content/24/4/148.full SO - Am J Enol Vitic.1973 Jan 01; 24 AB - The rate and amount of oxygen uptake in must was definitely affected by variety and temperature. Filtering juice without SO2 increased wine color, whereas SO2 addition had a reverse effect. Must browning can be related directly to oxygen uptake. Depending on the must, SO2 of 25 to 100 mg/l is required to inhibit the enzymatic oxidase activity. The enzyme activity can be removed by bentonite fining but not so effectively as with SO2.