The flux decline behaviour during skim milk ultrafiltration (UF) was investigated at 10 °C, 30 °C and 50 °C. Despite higher fluxes, UF processing at higher temperatures resulted in higher magnitudes and rates of irreversible fouling. Fouling in this temperature range was primarily proteinaceous, consisting of mainly peptides and alpha-lactalbumin (α-LA), with minor amounts of beta-lactoglobulin (β-LG) present only at 50 °C. The increase in fouling resistance with processing temperature was concluded to be mainly due to increased pore fouling by α-LA deposition, and in part to β-LG deposition at 50 °C. These are attributed respectively to the thermal expansion of membrane pores and reversible conformational changes of β-LG.

在10°C，30°C和50°C下研究了脱脂乳超滤（UF）期间的通量下降行为。尽管通量更高，但在较高温度下进行超滤处理仍会导致更高的幅度和不可逆结垢率。在此温度范围内，污垢主要是蛋白质，主要由肽和α-乳白蛋白（α-LA）组成，仅在50°C时存在少量β-乳球蛋白（β-LG）。得出结论，耐污垢性随加工温度的增加主要是由于α-LA沉积增加了孔的污垢，部分归因于在50°C时β-LG沉积。这些分别归因于膜孔的热膨胀和β-LG的可逆构象变化。