Intensification of Biophenols Extraction Yield from Olive Pomace Using Innovative Green Technologies.
Intensification of Biophenols Extraction Yield from Olive Pomace Using Innovative Green Technologies.
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使用创新的绿色技术提高橄榄果渣中生物酚的提取率。
DOI：
10.3390/biom13010065
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发表时间：
2022-12-29
期刊：
影响因子：
5.5
通讯作者：
中科院分区：
文献类型：
--
作者：
橄榄果渣是橄榄油生产过程中产生的主要副产品。尽管对环境有毒，但橄榄果渣因其酚类化合物含量高而成为天然抗氧化剂的重要来源。当前研究的目的是利用创新的绿色技术最大限度地提高橄榄果渣中主要酚类化合物的提取率。为此，目前的工作分为两部分。第一部分基于两种不同温度（20 °C 和 50 °C）下不同乙醇/水比例中目标酚类化合物的溶解度研究。使用 COSMO-RS 软件进行计算预测来计算最终溶解度，随后通过实际实验得到证实。确定溶剂比 (EtOH/H2O) (60:40 v/v) 和温度 (50 °C) 的最佳提取条件引发了工作的第二部分，即提高提取率。此外，还使用创新技术进行了各种绿色提取，包括加速溶剂提取（ASE）、超声波及其系统（探针（UAE-P）和浴（UAE-B））、珠磨（BM）和微波（MAE），然后与传统浸渍（CM）进行比较。结果表明，与 CM (3.8 mg TE/g DOP) 相比，ASE 是从干橄榄果渣粉末中提取酚类化合物的最有效方法（每克干橄榄果渣粉末 (DOP) 含有 5.3 毫克酪醇当量 (TE)）。
Olive pomace is the main by-product generated by the olive oil production process. Although toxic to the environment, olive pomace is an important source of natural antioxidants due to its high content of phenolic compounds. The aim of the current study is to maximize the extraction yields of the main phenolic compounds present in olive pomace using innovative green technologies. For this purpose, the present work is divided into two parts. The first part is based on a solubility study of targeted phenolic compounds in various ethanol/water ratios at two different temperatures (20 °C and 50 °C). A computational prediction using COSMO-RS software was applied for the calculation of eventual solubility, which was subsequently confirmed by practical experiments. The determination of the optimal extraction conditions of solvent ratio (EtOH/H2O) (60:40 v/v) and temperature (50 °C) led to the second part of the work, which concerns the intensification of extraction yields. Furthermore, various green extractions using innovative technologies, including accelerated solvent extraction (ASE), ultrasound with its both system (probe (UAE-P) and bath (UAE-B)), bead milling (BM) and microwave (MAE), were carried out and then compared to conventional maceration (CM). Results showed that ASE was the most effective method for extracting phenolic compounds from dried olive pomace powder (5.3 milligrams of tyrosol equivalent (TE) per gram of dried olive pomace powder (DOP)) compared to CM (3.8 mg TE/g DOP).
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影响因子：
4.1
作者：
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