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Crossflow microfiltration coupled with diafiltration to concentrate and purify carotenoids and flavonoids from citrus juices
Innovative Food Science & Emerging Technologies ( IF 6.6 ) Pub Date : 2017-12-08 , DOI: 10.1016/j.ifset.2017.11.015
Jessica Polidori , Claudie Dhuique-Mayer , Manuel Dornier

This work aimed to evaluate an eco-friendly process based on microfiltration with a diafiltration stage in order to concentrate and purify the main carotenoids and flavonoids in citrus juices. Pilot plant scale trial parameters were: tubular ceramic membranes with 0.2 μm pore diameter, 40 °C and 3 bar of transmembrane pressure. Different operating conditions were tested varying volumetric reduction ratio (VRR) from 2.5 to 10 and diavolume (DV) up to 1.7. Permeate flux ranged from 20 to 100 L h− 1 m− 2 according to the VRR. The concentration was multiplied by 5 to 10 for carotenoids and hesperidin but only by 2 to 3 for narirutin. Diafiltration increased the purity of carotenoids and hesperidin from 8 to 20 times. A model was validated for prediction of the concentration and purification factors vs. VRR and DV and the retentions were 100%, 97% and 63% for carotenoids, hesperidin and narirutin.



中文翻译:

错流微滤结合渗滤,从柑橘汁中浓缩和纯化类胡萝卜素和类黄酮

这项工作旨在评估基于微滤和渗滤阶段的环保工艺,以浓缩和纯化柑橘汁中的主要类胡萝卜素和类黄酮。中试规模的试验参数为:孔径为0.2μm,40°C和3 bar跨膜压力的管状陶瓷膜。测试了不同的操作条件,将体积缩小率(VRR)从2.5更改为10,而径向体积(DV)则提高到1.7。渗透通量范围从20到100 L h -1  m -2根据VRR。对于类胡萝卜素和橙皮苷,浓度乘以5到10,但是对于那鲁丁,浓度仅乘以2到3。渗滤将类胡萝卜素和橙皮苷的纯度从8倍提高到20倍。验证了用于预测浓度和纯化因子相对于VRR和DV的模型,类胡萝卜素,橙皮苷和那鲁丁的保留率分别为100%,97%和63%。

更新日期:2017-12-08
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