Sequential high-pressure extraction using green solvents to recover bioactive compounds from sesame cake

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL Journal of Supercritical Fluids Pub Date : 2024-09-30 DOI:10.1016/j.supflu.2024.106421

Marta Alessandra de Avila Souza , Adenilson Renato Rudke , Amanda Tavares Germano , Luciano Vitali , Sandra Regina Salvador Ferreira

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Abstract

Sesame cake was submitted to pressurized liquid extraction (PLE) for process optimization. Then, supercritical fluid extraction (SFE), followed by optimized PLE were applied to recover the oily fraction and the polar extract, respectively. PLE samples, at optimized condition and from SFE deffated cake, showed high levels of TPC (33.15 and 31.86 mg GAE/g), DPPH (97.64 and 94.38 µmol TE/g), FRAP (46.12 and 46.69 mg TE\g), flavonoids (2.26 and 2.31mgQE/g extract), yield (13.76 and 16.25 %) and protein (56.52 and 54.08 mg BSA/g), respectively. The oily fraction presented high levels of carotenoids and essential fatty acids, while PLE extracts presented higher concentration of ferulic acid, 4-aminobenzoic acid, and quercetin compared to Soxhlet extract. Total Reduced Sugar (TRS) content suggests sesame cake as good biomass for bioethanol production. The sequential process (SFE + PLE) was efficient to recover two bioactive fractions from sesame cake, contributing to improve the value of this co-product.

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使用绿色溶剂进行顺序高压萃取，从芝麻饼中回收生物活性化合物

芝麻饼经过加压液体萃取（PLE）进行工艺优化。然后，采用超临界流体萃取（SFE）和优化的 PLE 分别回收油性馏分和极性提取物。优化条件下的 PLE 样品和从 SFE 脱脂饼中提取的 PLE 样品分别显示出较高的 TPC（33.15 和 31.86 mg GAE/g）、DPPH（97.64 和 94.38 µmol TE/g）、FRAP（46.12 和 46.69 mg TE/g）、类黄酮（2.26 和 2.31mgQE/g 提取物）、产量（13.76 和 16.25 %）和蛋白质（56.52 和 54.08 mg BSA/g）水平。与索氏提取物相比，油性提取物中类胡萝卜素和必需脂肪酸含量较高，而 PLE 提取物中阿魏酸、4-氨基苯甲酸和槲皮素含量较高。总还原糖（TRS）含量表明芝麻饼是生产生物乙醇的良好生物质。连续工艺（SFE + PLE）能有效地从芝麻饼中回收两种生物活性馏分，有助于提高这种副产品的价值。

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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.