A critical analysis of publication trends from 2005–2015 in microwave assisted extraction of botanicals: How far we have come and the road ahead

Mandal, Vivekananda; Tandey, Roshni

doi:10.1016/j.trac.2016.05.020

Cited by 23 publications

(7 citation statements)

References 30 publications

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“…Various review have been published in this direction, mainly deals with either a single/few method of extraction [40][41][42][43], focused on a specific compound and its class [44,45] or tissue/plant type [44,46], deals with different extraction techniques for a specific compound class [45] or basic operating process or not recently reviewed [47,48]. However, some of the recently published reviews have limited scope of either dealing with compound classes [49] or extraction techniques [7,8,[50][51][52]. Thus, our present review will not only provide recent advances in extraction but also have wider scope in understanding various extraction methods used over chemical compounds and its selection criteria over wider variables/factors.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Belwal

Ezzat

Rastrelli

et al. 2018

TrAC Trends in Analytical Chemistry

365

182

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Plant extracts have been long used by the traditional healers for providing health benefits and are nowadays suitable ingredient for the production of formulated health products and nutraceuticals. Traditional methods of extraction such as maceration, percolation, digestion, and preparation of decoctions and infusions are now been replaced by advanced extraction methods for increased extraction efficiency and selectivity of bioactive compounds to meet up the increasing market demand. Advanced techniques use different ways for extraction such as microwaves, ultrasound waves, supercritical fluids, enzymes, pressurized liquids, electric field, etc. These innovative extraction techniques, afford final extracts selectively rich in compounds of interest without formation of artifacts, and are often simple, fast, environmentally friendly and fully automated compared to existing extraction method. The present review is focused on the recent trends on the extraction of different bioactive chemical constituents depending on the nature of sample matrices and their chemical classes including anthocyanins, flavonoids, polyphenols, alkaloids, oils, etc. In addition, we review the strategies for designing extraction, selection of most suitable extraction methods, and trends of extraction methods for botanicals. Recent progress on the research based on these advanced methods of extractions and their industrial importance are also discussed in detail.

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Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Belwal

Ezzat

Rastrelli

et al. 2018

TrAC Trends in Analytical Chemistry

365

182

View full text Add to dashboard Cite

show abstract

“…Among them, microwave-assisted extraction (MAE) has gained major importance due to its multiple advantages compared to conventional extraction techniques, leading to increased extraction yields and reduced extraction time and solvent consumption. MAE has been extensively used in the extraction of polyphenols from different natural sources [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of Bioactive Compounds from Aloe Vera Agrowastes in Electrospun Poly (Ethylene Oxide) Nanofibers

et al. 2020

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Aloe Vera is an ancient medicinal plant especially known for its beneficial properties for human health, due to its bioactive compounds. In this study, nanofibers with antioxidant activity were successfully obtained by electrospinning technique with the addition of a natural Aloe Vera skin extract (AVE) (at 0, 5, 10 and 20 wt% loadings) in poly(ethylene oxide) (PEO) solutions. The successful incorporation of AVE into PEO was evidenced by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA) and antioxidant activity by 2,2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH), 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging (ABTS) and ferric reducing power (FRAP) assays. The incorporation of AVE introduced some changes in the PEO/AVE nanofibers morphology showing bimodal diameter distributions for AVE contents in the range 10-20 wt%. Some decrease in thermal stability with AVE addition, in terms of decomposition onset temperature, was also observed and it was more evident at high loading AVE contents (10 and 20 wt%). High encapsulation efficiencies of 92%, 76% and 105% according to DPPH, FRAP and ABTS assays, respectively, were obtained at 5 wt% AVE content, retaining AVE its antioxidant capacity in the PEO/AVE electrospun nanofibers. The results suggested that the obtained nanofibers could be promising materials for their application in active food packaging to decrease oxidation of packaged food during storage.

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“…Thus, the availability of optimized extraction methods for this fruit could help in the detection of possible food fraud. In recent years, there has been an increase in the number of publications focused on developing new extraction methods for bioactives from plants [20,21]. Among the extraction methodologies employed, ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) are considered to be excellent green alternatives to conventional methods for the extraction of bioactive compounds due to their low instrument set-up costs on a laboratory scale [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Microwave-Assisted Extraction for the Recovery of Bioactive Compounds from the Chilean Superfruit (Aristotelia chilensis (Mol.) Stuntz)

et al. 2018

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Maqui berry (Aristotelia chilensis) is being explored in the food industry, and is considered to be one of the healthiest berries due to its bioactive components and high commercial value. Microwave-assisted extraction (MAE) was developed for the determination of total phenolic compounds and anthocyanins from maqui. A Box–Behnken experimental design was employed in conjunction with a response surface methodology to optimize the conditions based on 27 different experiments. The extractions were carried out with four factors (i.e., methanol percentage, pH, temperature, and solvent volume:sample mass ratio), and two responses—total phenolics and anthocyanins. Temperature and methanol percentage were found to be the most influential parameters for total phenolic compounds and anthocyanins, respectively. The optimum MAE conditions were: 65% MeOH in water at pH 2, temperature of 100 °C, and a ratio of 10:0.5 for total phenolics; and 60% MeOH in water at pH 2, temperature of 50 °C, and a ratio of 14:0.5 for anthocyanins. Kinetics assays were carried out and an optimum time of only 2 min was identified for the extractions. Repeatability and intermediate precision were also evaluated, and coefficients of variation below 5% were obtained. The new methods were successfully applied to a foodstuff made with maqui.

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A critical analysis of publication trends from 2005–2015 in microwave assisted extraction of botanicals: How far we have come and the road ahead

Cited by 23 publications

References 30 publications

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Encapsulation of Bioactive Compounds from Aloe Vera Agrowastes in Electrospun Poly (Ethylene Oxide) Nanofibers

Optimization of Microwave-Assisted Extraction for the Recovery of Bioactive Compounds from the Chilean Superfruit (Aristotelia chilensis (Mol.) Stuntz)

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