绍兴黄酒陶坛氧传递速率研究
Oxygen Transfer Rate of Shaoxing Rice Wine Jars

传统绍兴黄酒贮存于陶坛，因陶坛透气，进入陶坛的氧气可促进黄酒成熟，并影响黄酒的颜色、风味和稳定性。为研究黄酒贮存过程中陶坛的氧传递速率，以Fe2+溶液为还原剂，绍兴黄酒密封于陶坛贮存30 d后，进入陶坛的O2会将Fe2+氧化为Fe3+，采用硫氰酸钾比色法测定Fe3+质量浓度，可估算出贮存期进入陶坛的氧气量及氧传递速率。结果表明，传统陶坛的日均氧传递速率（OTR）为0.106 mg/L，为设计带有微氧化装置的黄酒专用大型不锈钢贮酒罐提供理论依据。
Traditional Shaoxing rice wine was stored in the pottery jar for aging because the jar are porous and allow oxygen in the air to permeate into the wine,and oxygen plays a key role in the wine aging as it affects the color,aroma and stability of the wine.In this paper we evaluated how much oxygen penetrated into the pottery jar during the rice wine storage.Iron (Ⅱ) solution as the reducing agent was stored in Shaoxing rice wine jars for 30 days.During this period some iron (Ⅱ) was oxidized into iron (Ⅲ) by the oxygen penetrated into the pottery jars.The mass concentrations of the iron (Ⅲ) were determined by a KSCN colorimetric method,thus the oxygen transfer rate (OTR) of the pottery jars was calculated.The result showed that the OTR value is 0.106 mg/L per day,and this value is an important reference for designing the large stainless container with micro-oxygeneration devices for Shaoxing rice wine.