Encapsulation of Arthrospira platensis polyphenolic extract using supercritical emulsion-based process

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2024-06-21 DOI:10.1016/j.supflu.2024.106335

Chiara Bufalini , Ida Palazzo , Alessandro Alberto Casazza , Pier Francesco Ferrari , Roberta Campardelli , Giuseppe Firpo , Patrizia Perego , Ernesto Reverchon

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Abstract

Arthrospira platensis polyphenolic natural extracts have several benefits for human health. Due to their instability and reduced shelf-life, these extracts are usually encapsulated. This work analyzed the supercritical emulsion extraction (SEE) process for the production of polymeric nanoparticles loaded with A. platensis polyphenolic extracts. The objective of this work was to evaluate a powdered encapsulation system to overcome the drawbacks of liquid systems, which are those mainly used for microalgae extract stabilization. An optimization study was performed investigating different process parameters and comparing the obtained particles in terms of particle size distribution, morphology, and encapsulation efficiency. The process permitted the successfull production of loaded polymeric nanoparticles with an encapsulation efficiency up to 74 % in the best operating conditions. The SEE process allowed a better control of morphology and particle size distribution of the nanometric particles operating in a continuous mode.

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利用超临界乳液法封装节肢动物多酚提取物

Arthrospira platensis 多酚天然提取物对人体健康有多种益处。由于其不稳定性和较短的保质期，这些提取物通常被封装起来。本研究分析了超临界乳液萃取（SEE）工艺，用于生产装载有板蓝根节肢动物多酚提取物的聚合物纳米颗粒。这项工作的目的是评估一种粉末封装系统，以克服液体系统（主要用于稳定微藻提取物）的缺点。研究人员对不同的工艺参数进行了优化研究，并从粒度分布、形态和封装效率等方面对获得的颗粒进行了比较。在最佳操作条件下，该工艺成功地生产出了负载聚合物纳米粒子，封装效率高达 74%。SEE 工艺可以更好地控制以连续模式运行的纳米颗粒的形态和粒度分布。

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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.