Recovery of Aromatics from Orange Juice Evaporator Condensate Streams by Reverse Osmosis

Abstract

The aim of this work was to analyze the potential of reverse osmosis (RO) membranes in the recovery and concentration of aroma compounds from orange juice evaporator condensate (EC) streams. Concentration experiments were performed by using three RO spiral-wound aromatic polyamide membranes (SG1812C-34D, SC1812C-34D and SE1812) with different NaCl rejections. The effect of transmembrane pressure, axial feed flowrate and volume concentration ratio (VCR) on permeate flux was studied. Rejections of the investigated membranes towards specific aroma compounds (octanol, α-terpineol, terpinen-4-ol, cis-carveol, karvon, linalool) in selected operating conditions were also evaluated. The concentrations of the aroma compounds were determined by gas chromatography coupled with mass spectrometry (GC-MS) using headspace solid-phase microextraction (HS-SPME) as a sample preparation approach. For all selected membranes, the permeate flux increased linearly by increasing the operating pressure from 5 to 25 bar; on the other hand, the feed flowrate did not have any significant effect on the permeate flux. High retention values towards aroma compounds (>80%) were measured for all selected membranes. However, the SC membrane showed the highest rejection values (>96%) and the best correlation between concentration factor of aroma compounds and VCR.

UPLC-TOF/MS-based metabolomics reveals the chemical changes and in vitro biological effects in fermentation of white ginseng by four probiotics

“…Fraga et al, 2019;Destani et al, 2020). In this work, we found that the content of flavonoids and phenolics in WG fermented by four probiotics were significantly different, and E. cristatum exhibited the best performance.…”

Clean Technologies for Production of Valuable Fractions from Sardine Cooking Wastewaters: An Integrated Process of Flocculation and Reverse Osmosis

“…This is expected behaviour due to the increase in This figure shows that with an increase in the concentration factor, the permeance of the membrane reduces progressively. This is expected behaviour due to the increase in the concentration of foulant compounds present in the solution [34,35]. The highest permeance was recorded for the chitosan/carrageenan combination at the lowest concentration (0.123-0.265 L/m 2 h), and the lowest for the chitosan/alginate combination with the highest concentration (0.071-0.188 L/m 2 h).…”

“…Clean Technol. 2021, 3, FOR PEER REVIEW 16 the concentration of foulant compounds present in the solution [34,35]. The highest permeance was recorded for the chitosan/carrageenan combination at the lowest concentration (0.123-0.265 L/m 2 h), and the lowest for the chitosan/alginate combination with the highest concentration (0.071-0.188 L/m 2 h).…”

Membrane Technologies in the Oil Industry and Their Potential Application for the Recovery of Phytonutrients From Palm Oil

“…Membrane technologies have various applications in the food industry, for example, in the manufacturing processes of dairy products for milk protein recovery (Chamberland et al, 2019;Deshwal et al, 2020;Gavazzi-April et al, 2018;Lauzin et al, 2020;Li and Corredig, 2020;Lobasenko et al, 2019;Renhe and Corredig, 2018;Rodrigues Toledo Renhe et al, 2019;Sánchez-Moya et al, 2020;Schäfer et al, 2019;Shakhno et al, 2019;Sousa et al, 2019;Touhami et al, 2020;Uttamrao et al, 2019;Valencia et al, 2018), the clarification of beverages (Akhtar et al, 2020;Bindes et al, 2020;Destani et al, 2020;Rodrigues et al, 2020), and the recovery of enzymes and metabolites of biotechnological processes (Balti et al, 2018;Díaz-Montes and Castro-Muñoz, 2019;Díaz-Montes et al, 2020;Ter Beek et al, 2019;Todero et al, 2019;Wang et al, 2018;Zhang et al, 2016).…”