In this work, foam fractionation has been used to recover proanthocyanidin (PC) from Camellia seed shells which were a bulk by-product of stripping seeds from Camellia fruit. First, the operation conditions for leaching PC from Camellia seed shells by alkaline and ultrasound-assisted extraction were optimized using response surface methodology (RSM). A collector of molecular imprinting chitosan nanoparticles (CMIPs) was prepared to achieve the attachment of PC on the bubble surface. The results of adsorption experiments indicated that the adsorption behavior of PC on the CMIPs could be interpreted by Freundlich model and it belonged to specific adsorption process. Foam fractionation was performed by using CMIPs and dodecyl dimethyl betaine (BS-12) as the collector and frother, respectively. The enrichment ratio and the recovery percentage of PC were as high as 10.34 ± 2.11 and 85.24 ± 3.05% under the suitable operation conditions.

在这项工作中，泡沫分离已用于从茶花种子壳中回收原花青素（PC），该花壳是从茶花果实中剥离种子的主要副产品。一，山茶浸出PC的操作条件使用响应表面方法（RSM）优化了通过碱提取和超声辅助提取的种子壳。制备了分子印迹壳聚糖纳米粒子（CMIP）的收集器，以实现PC在气泡表面上的附着。吸附实验结果表明，PC在CMIPs上的吸附行为可以用Freundlich模型来解释，属于特定的吸附过程。通过分别使用CMIP和十二烷基二甲基甜菜碱（BS-12）作为收集剂和起泡剂进行泡沫分离。在合适的操作条件下，PC的富集率和回收率高达10.34±2.11和85.24±3.05％。