Supercritical fluid impregnation of phenolic compounds from passion fruit bagasse in corn starch aerogels: Phase behavior and effect of operation mode

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL Journal of Supercritical Fluids Pub Date : 2024-08-24 DOI:10.1016/j.supflu.2024.106387

Erick Jarles Santos de Araujo , Arthur Jessé Oliveira Braga , José Claudio Klier Monteiro Filho , Papa Matar Ndiaye , Rodney Alexandre Ferreira Rodrigues , Julian Martínez

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Abstract

This work investigated the phase behavior of the system sc-CO₂ + ethanolic extract of passion fruit bagasse (EEPFB) and the effect of operation modes on the supercritical fluid impregnation (SFI) of phenolic compounds from EEPFB in corn starch aerogels. The total reducing capacity, antioxidant capacity (FRAP and ORAC), piceatannol amount and SFI yield (%) were evaluated. Three of the four system compositions showed the formation of a solid phase. SFI in static mode provided the best TRC, FRAP, and ORAC results. There were no significant differences in the amount of piceatannol and yield (%). The nitrogen adsorption/desorption test possibly indicates the filling of the aerogel pores with EEPFB and images of the aerogel before and after SFI suggest the incorporation of phenolic compounds into the corn starch aerogels through precipitation.

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玉米淀粉气凝胶中百香果蔗渣酚类化合物的超临界流体浸渍：相行为和操作模式的影响

本研究探讨了 sc-CO2 + 百香果甘蔗渣乙醇提取物（EEPFB）体系的相行为，以及操作模式对玉米淀粉气凝胶中 EEPFB 酚类化合物超临界流体浸渍（SFI）的影响。评估了总还原能力、抗氧化能力（FRAP和ORAC）、皮卡丹宁酚含量和SFI产量（%）。四种体系组成中有三种显示出固相的形成。在静态模式下，SFI 的 TRC、FRAP 和 ORAC 结果最好。皮夏单宁酚的含量和产量（%）没有明显差异。氮吸附/解吸试验可能表明 EEPFB 填充了气凝胶孔隙，SFI 前后的气凝胶图像表明酚类化合物通过沉淀融入了玉米淀粉气凝胶。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.