Pérez Karla, Cassano Alfredo, Ruby-Figueroa René
Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, San Joaquín, Santiago 8940577, Chile.
Institute on Membrane Technology, ITM-CNR, University of Calabria, via P. Bucci, 17/C, 87036 Rende, Italy.
Foods. 2023 Dec 20;13(1):20. doi: 10.3390/foods13010020.
The recovery of valuable compounds like phenolic compounds and sugars from grape marc extracts implies different steps, including clarification. In this study, a response surface methodology (RSM) was used as a statistical tool to study the effects of operating conditions such as transmembrane pressure (TMP), temperature and feed flow rate on the performance of a microfiltration (MF) monotubular ceramic membrane with a pore size of 0.14 μm in the clarification of grape marc extract from the Carménère variety, as well to optimize the process conditions by implementing the Box-Behnken statistical design. The desirability function approach was applied to analyze the regression model equations in order to maximize the permeate flux and concentration of malvidin-3-O-glucoside, glucose and fructose in the clarified extract. The optimal operating conditions were found to be 1 bar, 29.01 °C and 5.64 L/min. Under these conditions, the permeate flux and concentration of malvidin-3-O-glucoside, glucose and fructose resulted in 65.78 L/mh, 43.73 mg/L, 305.89 mg/L, and 274.85 mg/L, respectively.
从葡萄皮渣提取物中回收酚类化合物和糖类等有价值的化合物需要不同的步骤，包括澄清。在本研究中，响应面法（RSM）被用作一种统计工具，以研究诸如跨膜压力（TMP）、温度和进料流速等操作条件对孔径为0.14μm的微滤（MF）单管陶瓷膜在澄清卡门内拉品种葡萄皮渣提取物中的性能的影响，并通过实施Box-Behnken统计设计来优化工艺条件。应用合意函数法分析回归模型方程，以最大化澄清提取物中矢车菊素-3-O-葡萄糖苷、葡萄糖和果糖的渗透通量和浓度。发现最佳操作条件为1巴、29.01℃和5.64升/分钟。在这些条件下，矢车菊素-3-O-葡萄糖苷、葡萄糖和果糖的渗透通量和浓度分别为65.78升/小时、43.73毫克/升、305.89毫克/升和274.85毫克/升。
