Reconfiguring extraction of phenolics &amp; flavonoids through a solvent-free gravity assisted model for the complete recovery of target analytes from moringa leaves: A complete overhauling attempt in the field of botanical extraction

Chouhan, Kavi Bhushan Singh; Mukherjee, Souvik; Mandal, Vivekananda

doi:10.1016/j.scp.2022.100805

Cited by 7 publications

(4 citation statements)

References 39 publications

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“…5). The authors also reported similar observations for the SFME of phenolics from moringa leaves 11,21 . At this point, the earlier the first drop appears, the fewer the number of extraction cycles required.…”

Section: Resultssupporting

confidence: 63%

“…The authors also reported similar observations for the SFME of phenolics from moringa leaves. 11,21 At this point, the earlier the first drop appears, the fewer the number of extraction cycles required. Findings indicate that after 170 W, the requirement of the number of extraction cycles and time of appearance of the first drop was reduced by 50%, and beyond 255 W, any increase in microwave power did not produce any significant difference, possibly hinting toward the fact that beyond the optimal condition, saturation is reached and a further reduction may not be possible.…”

Section: Impact Of Microwaves On Extraction Cycle and Appearance Of F...mentioning

confidence: 99%

“…20 Thermogravimetric analysis (TGA) TGA of standard eugenol and PBEO derived from optimal SFME conditions and SD distillation was performed using a PerkinElmer TGA 4000 instrument heated from 30 to 600 °C at a rate of 5 °C min −1 in a nitrogen atmosphere. 21 The weight loss percentage was calculated using the generated data.…”

Section: Gas Chromatography Profilingmentioning

confidence: 99%

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Decrypting solvent‐free microwave as a dual green extraction: studying simultaneous extraction of essential oil and phenolics from the same biomass – valorization and outperforming traditional approaches

Mukherjee,

Chouhan,

Mandal

2024

J of Chemical Tech & Biotech

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BACKGROUNDThe current research work focuses on the sustainable utilization of plant biomass so that two separate classes of phytocompounds (volatile and non‐volatile principles) can be extracted from the same biomass simultaneously. The hydro‐diffusion and gravity variant of solvent‐free microwave‐based extraction (MHG‐SFME) was attempted for the extraction of Piper betle L. essential oil (PBEO).RESULTSThe threat of milky emulsion has been exemplified for the first time which is likely to occur when the biomass temperature exceeds a critical value (85 °C). A microwave power level of 255 W with 25 min of extraction time produced PBEO with eugenol content 123% more than that obtained with steam distillation (SD). The said optimal MHG‐SFME conditions returned PBEO with the highest phenolic (20.8 mg GAE g−1 of oil) and eugenol (657.57 μg g−1) contents. PBEO showed better thermal behavior when compared to the EO obtained from SD.CONCLUSIONThe proposed method was capable of retaining non‐volatile principles, as the retention of total phenolics in biomass after MHG‐SFME was found to be 95%, indicating reusability of the biomass for the extraction of non‐volatile principles. In contrast, the retention factor of phenolics content for SD was found to be 17.7% only. Real‐time evidence in the form of chemo‐microscopy and scanning electron microscopy was generated to understand the retention of phenolics and ultrastructural changes upon microwave exposure. Complete glandular rupture was evident in the biomass subjected to MHG‐SFME while the oil glands appeared squeezed for the biomass which underwent SD. Complete profiling of phenolics and flavonoid principles of the leftover biomass was carried out. © 2024 Society of Chemical Industry (SCI).

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Section: Resultssupporting

confidence: 63%

Section: Impact Of Microwaves On Extraction Cycle and Appearance Of F...mentioning

confidence: 99%

Section: Gas Chromatography Profilingmentioning

confidence: 99%

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Decrypting solvent‐free microwave as a dual green extraction: studying simultaneous extraction of essential oil and phenolics from the same biomass – valorization and outperforming traditional approaches

Mukherjee,

Chouhan,

Mandal

2024

J of Chemical Tech & Biotech

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“…Total phenolic and avonoid content was determined as per the method described by the authors in their previous publications. Folin-Coicalteu method and Aluminum trichloride method was used for determination TPC and TFC respectively (Chouhan et al, 2022;Kala et al, 2017). Results of TPC were expressed as gallic acid equivalent (GAE) in mg per g of dried extract and TFC was expressed in mg per g of dry extract as quercetin equivalents (QUE).…”

Section: Total Phenolic Content and Total Avonoid Content (Tpc And Tfc)mentioning

confidence: 99%

WITHDRAWN: An eco-extraction procedure for solvent free extraction of plant phenolics using microwave hydro diffusion and gravity (MHG) model

Sinha,

Mukherjee,

Chouhan

et al. 2024

Preprint

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The current work exemplifies a strategic implementation of blended mode microwaving in the MHG model for the solvent-free extraction of phenolics from the leaves of the plant Medicago polymorpha. Blended mode comprises of a mix of 510W microwave power level for 5 min, followed by 340W exposure for 5 min and then finally prolonged exposure of 170W in cycles of 5 min each till the end point is reached. The extraction performance was assessed by the total phenolic and flavonoid contents which was found to be 65.1 and 66.7 mg GAE/QE per g of dried extract respectively, for the extract obtained from MHG (blended mode). Soxhlet extract on the other hand could produce 45.4 and 52.4 mg GAE/QE per g of dried extract. In total 18 phenolic principles were detected out of which 09 compounds showed more than 50% depletion in the extract obtained from Soxhlet. In addition to this extract obtained from MHG showed better stability as only 18.9% degradation was reported in a span of 60 days when compared to 64.1% for the Soxhlet extract for the same length of time. Improved thermal stability and antioxidant activity were the other add on features for the extract obtained through MHG (blended mode). Such technologies embraces environment and progresses sustainably.

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Protocol for the Determination of Plant Phenolics by Microwave-Assisted Extraction

Queffelec,

Ferreira-Anta,

Carballido

et al. 2024

Extraction, Characterization, and Functional Assessment of Bioactive Compounds

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Reconfiguring extraction of phenolics & flavonoids through a solvent-free gravity assisted model for the complete recovery of target analytes from moringa leaves: A complete overhauling attempt in the field of botanical extraction

Cited by 7 publications

References 39 publications

Decrypting solvent‐free microwave as a dual green extraction: studying simultaneous extraction of essential oil and phenolics from the same biomass – valorization and outperforming traditional approaches

Decrypting solvent‐free microwave as a dual green extraction: studying simultaneous extraction of essential oil and phenolics from the same biomass – valorization and outperforming traditional approaches

WITHDRAWN: An eco-extraction procedure for solvent free extraction of plant phenolics using microwave hydro diffusion and gravity (MHG) model

Protocol for the Determination of Plant Phenolics by Microwave-Assisted Extraction

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