scholarly journals Innovative Extraction Techniques Using Deep Eutectic Solvents and Analytical Methods for the Isolation and Characterization of Natural Bioactive Compounds from Plant Material

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1428 ◽  
Author(s):  
Milena Ivanović ◽  
Maša Islamčević Razboršek ◽  
Mitja Kolar
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods ◽  
Plant Material ◽  
Deep Eutectic Solvents ◽  
Original Research ◽  
Extraction Techniques ◽  
Plant Metabolites ◽  
Plant Materials ◽  
Isolation And Characterization ◽  
Natural Deep Eutectic Solvents

The growing interest of the food, pharmaceutical and cosmetics industries in naturally occurring bioactive compounds or secondary plant metabolites also leads to a growing demand for the development of new and more effective analysis and isolation techniques. The extraction of bioactive compounds from plant material has always been a challenge, accompanied by increasingly strict control requirements for the final products and a growing interest in environmental protection. However, great efforts have been made in this direction and today a considerable number of innovative extraction techniques have been developed using green, environmentally friendly solvents. These solvents include the deep eutectic solvents (DES) and their natural equivalents, the natural deep eutectic solvents (NADES). Due to their adjustable physical-chemical properties and their green character, it is expected that DES/NADES could be the most widely used solvents in the future, not only in extraction processes but also in other research areas such as catalysis, electrochemistry or organic synthesis. Consequently, this review provided an up-to-date systematic overview of the use of DES/NADES in combination with innovative extraction techniques for the isolation of bioactive compounds from various plant materials. The topicality of the field was confirmed by a detailed search on the platform WoS (Web of Science), which resulted in more than 100 original research papers on DES/NADES for bioactive compounds in the last three years. Besides the isolation of bioactive compounds from plants, different analytical methods are presented and discussed.

scholarly journals Deep Eutectic Solvents for the Extraction of Bioactive Compounds from Natural Sources and Agricultural By-Products

2021 ◽  
Vol 11 (11) ◽  
pp. 4897
Author(s):  
Bárbara Socas-Rodríguez ◽  
M. Vanessa Torres-Cornejo ◽  
Gerardo Álvarez-Rivera ◽  
Jose A. Mendiola
Keyword(s):  
Bioactive Compounds ◽  
Deep Eutectic Solvents ◽  
Extraction Methods ◽  
In Vitro Cytotoxicity ◽  
In Vivo Studies ◽  
Natural Sources ◽  
Natural Deep Eutectic Solvents ◽  
By Products

In this work, a review about the applicability of eutectic solvents, mainly deep eutectic solvents (DES) and natural deep eutectic solvents (NADES), for the extraction of bioactive compounds from natural products has been carried out. These alternative solvents have shown not only to have high extraction yields but also to be environmentally friendly, exhibiting very low or almost no toxicity, compared to conventional organic solvents. The last trends and main extraction methods that have been most widely used in studies using these emerging solvents have been reviewed, as well as the varied natural sources in which they have been used, including agro-food by-products. Besides the toxicity, biodegradability of these solvents is reviewed. Likewise, different reported bioactivity tests have been included, in which extracts obtained with these ecological solvents have been tested from antioxidant activity analysis to in vivo studies with rats, through in vitro cytotoxicity tests.

scholarly journals Qualitative Phytochemical Analysis of Incarvillea emodi (Royle ex Lindl.) Chatterjee and Malva neglecta (Wallr.)

2020 ◽  
Vol 10 (4) ◽  
pp. 93-95
Author(s):  
M. Huzafa ◽  
Z. Jamal ◽  
A. Ahmed
Keyword(s):  
Bioactive Compounds ◽  
Plant Material ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Confirmatory Tests ◽  
Phytochemical Profile ◽  
Positive Results

The present study was carried out to investigate the phytochemical profile of Incarvillea emodi and Malva neglecta. The two plants were screened for the presence of nine different classes of bioactive compounds. The qualitative tests were performed on the aerial and underground parts of the selected plants to relate the presence of phytochemicals with bioactivities of the plants. The selected plant material was extracted with three different solvents. These extracts were then subjected to phytochemical screening and the presence of various phytochemicals was confirmed by different standard confirmatory tests. Most of the phytochemicals were found to be present. Results showed that the underground parts of Incarvillea emodi contain comparatively greater number of phytochemicals than the aerial parts. Whereas, in case of Malva neglecta the aerial parts showed more positive results than the underground parts. The current study offers proof for the presence of important bioactive compounds in the studied plants and recommends isolation and characterization of these compounds in the future.

scholarly journals Recent Advances in Supercritical Fluid Extraction of Natural Bioactive Compounds from Natural Plant Materials

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3847 ◽  
Author(s):  
Pascaline Aimee Uwineza ◽  
Agnieszka Waśkiewicz
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Bioactive Compounds ◽  
Extraction Methods ◽  
Plant Origin ◽  
Extraction Techniques ◽  
Fluid Extraction ◽  
Plant Materials ◽  
Natural Plant ◽  
Recent Advances

In this review, recent advances in greener technology for extracting natural bioactive components from plant origin sources are discussed. Bioactive compounds of plant origin have been defined as natural chemical compounds present in small amounts in plants. Researchers have shown interest in extracting bioactive compounds because of their human health benefits and characteristics of being eco-friendly and generally recognized as safe. Various new extraction methods and conventional extraction methods have been developed, however, until now, no unique approach has been presented as a benchmark for extracting natural bioactive compounds from plants. The selectivity and productivity of traditional and modern extraction techniques generally depend on selecting the critical input parameters, knowing the nature of plant-based samples, the structure of bioactive compounds, and good scientific skills. This work aims to discuss the recent advances in supercritical fluid extraction techniques, especially supercritical carbon dioxide, along with the fundamental principles for extracting bioactive compounds from natural plant materials such as herbs, spices, aromatic and medicinal plants.

scholarly journals Mass transfer intensification in bioactive compounds recovery by alternative extraction methods: effects of solvent

2018 ◽  
Vol 21 (1) ◽  
pp. 30-36
Keyword(s):  
Bioactive Compounds ◽  
Choline Chloride ◽  
Low Frequency ◽  
Deep Eutectic Solvents ◽  
Solvent System ◽  
Extraction Methods ◽  
Ultrasound Assisted Extraction ◽  
Power Intensity ◽  
Natural Deep Eutectic Solvents ◽  
Pre Treatment

<p>Recently, the exploration of new alternatives to common organic solvents in combination with non-conventional energy sources is a subject of intense research and development as tools for green extraction of plant-derived natural products. This paper deals with the use of low frequency ultrasound (100 W, 32 kHz) and pulsed electrical fields (0.86 kV cm-1, 13 Hz) to raise the efficiency of the extraction of selected plant species rich in valuable phenolic compounds.Four types of natural deep eutectic solvents were applied for the ultrasound-assisted extraction of silymarin from milk thistle among which a choline-chloride-based mixture with glycerol was proved to be the most promising one. Additionally, the usage of high ultrasound power significantly increased the concentration of sylimarin as compared to traditional ethanol extraction, generating rapidly for 10 min considerable temperature rise as a side effect under non-cooling conditions. The application of PEF as a pre-treatment for 0.8 s to the extraction allowed reducing the ethanol percentage in the ethanol/water mixtures giving comparable phenolic yields, without any, or very little, increase in temperature. As such, optimized power intensity in conjunction with appropriate solvent system provides a potential to improve the release of thermally unstable bioactive compounds under mild processing conditions.</p>

scholarly journals Natural Deep Eutectic Solvents (NADES): Phytochemical Extraction Performance Enhancer for Pharmaceutical and Nutraceutical Product Development

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2091
Author(s):  
Ni Putu Ermi Hikmawanti ◽  
Delly Ramadon ◽  
Ibrahim Jantan ◽  
Abdul Mun’im
Keyword(s):  
Deep Eutectic Solvents ◽  
Pharmaceutical Formulations ◽  
Green Solvents ◽  
Plant Metabolites ◽  
Natural Deep Eutectic Solvents ◽  
Extraction Performance ◽  
The Stability ◽  
Phytochemical Extraction ◽  
Extracting Solvent ◽  
Selection Of

Natural products from plants were extracted and widely studied for their activities against many disease conditions. The selection of the extracting solvent is crucial to develop selective and effective methods for the extraction and isolation of target compounds in the plant matrices. Pharmacological properties of plant extracts and their bioactive principles are related to their excellent solubility, stability, and bioavailability when administered by different routes. This review aims to critically analyze natural deep eutectic solvents (NADES) as green solvents in their application to improve the extraction performance of plant metabolites in terms of their extractability besides the stability, bioactivity, solubility, and bioavailability. Herein, the opportunities for NADES to be used in pharmaceutical formulations development including plant metabolites-based nutraceuticals are discussed.

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