Investigating the heat stability, calorimetric degradations and chromatographic polyphenolic profiling of edible macerated hog-tree apple leaf (Morinda lucida Benth)

Olalere, Olusegun Abayomi; Gan, Chee‐Yuen

doi:10.1007/s11696-020-01382-0

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…Numerous systems are employed to extract essential oils from various plant parts. Although these methods appear to be a simplistic process, the selection of appropriate extraction conditions and the solvent is very crucial to preserving the thermally sensitive volatile constituents (6). Moreover, the stability and purity of these essential oils are significant considerations when deciding which extraction method to utilize, which is a key issue to consider.…”

Section: Contextmentioning

confidence: 99%

Upscalability and Techno-economic Perspectives of Nonconventional Essential Oils Extraction Techniques

Olalere

Gan

Adeyi

et al. 2022

Jundishapur J Nat Pharm Prod

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Context: Nonconventional extraction methods, such as microwave, supercritical fluid, and ultrasonic, are known to be veritable means of producing solvent-free high-quality essential oils. Nonetheless, technical requirements for the utilization of these extraction technologies are often exorbitantly expensive, thereby limiting their utilization. Evidence Acquisition: Although these emerging extraction technologies have been reported to be efficient at a laboratory scale, their techno-economic analyses are necessary for proper upscaling. Scaling up nonconventional extraction has long been regarded as a critical constraint in larger industrial applications with a relatively limited body of published literature on more specific techno-economic analyses. Results: Therefore, an essential oil extraction unit’s techno-economic feasibility should be carefully assessed before an acquisition decision can be made for industrial upscaling. This review critically examined the implications of upscaling nonconventional extraction techniques while taking into consideration their techno-economic benefits. Conclusions: This study will undoubtedly assist researchers and industrial experts make an informed decision on the suitable extraction methods while taking into account the essential oil yield, quality characteristics, energy consumption, and operating costs.

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Section: Contextmentioning

confidence: 99%

Upscalability and Techno-economic Perspectives of Nonconventional Essential Oils Extraction Techniques

Olalere

Gan

Adeyi

et al. 2022

Jundishapur J Nat Pharm Prod

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“…These parameters include temperature, time, particle size, solid to liquid ratio, solvent type and extraction cycle [11]. Polar solvents such as water, methanol, ethanol, and acetone are commonly used for extracting polar bioactive compounds like phenolics and flavonoids [12]. On the other hand, non-polar solvents like hexane, ethyl acetate, and chloroform are preferred for extracting non-polar compounds such as essential oils and lipids [13].…”

Section: Introductionmentioning

confidence: 99%

Process Optimization, Genetic Programming Modeling and Reliability Assessment of Bioactive Extracts Recovery From Phyllantus Emblica

Alanzi,

Alenezi,

Adeyi

et al. 2023

Preprint

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The feasibility of recovering bioactive antioxidants from Phyllantus emblica leaves using ethanol -water mixture (0 – 100%) and heat-assisted extraction technology (HAE-T) was investigated in this present study. To this effect, the process parameter of operating temperature (OT: 30 -50 oC), solid -to-liquid ratio (S:L: 1:20 - 1:60 g/mL) and extraction time (ET: 45 - 180 min) were investigated on the extract total phenolic content (TPC, mg GAE/g d.w), yield (EY, %) and antioxidant activity (μM AAE/g d.w) by employing the Box-Behnken experimental design (BBD) available in response surface methodology (RSM). Multi-objective process optimization using the desirability function algorithm to determine set of process variables that simultaneously optimize process responses of TPC, EY and AA was also investigated. The recovery process was thereafter modeled with BBD-RSM and multi gene genetic programming (MGGP) algorithm and model reliability assessment via Monte Carlo simulation were conducted for the best performing set of models for predicting TPC, EY and AA values. The HPLC characterization of the recovered extract was carried out to ascertain the phenolic compound constituents of the Phyllantus emblica leaf extract. The 50% ethanol solution was found to be the best for the optimal extraction of antioxidants from Phyllantus emblica leaves. The HAE-T was suitable for recovering bioactive extract from Phyllantus emblica leaves and investigated process parameters have impacts on the recovery process. The process parameters that simultaneously gave the optimum EY of 21.6565%, TPC of 67.116 mg GAE/g and AA of 3.68583 µM AAE/g were OT of 41.61 oC, S:L of 1:60 g/mL and ET of 180 min. The HPLC extract profiling revealed that the bioactive constituents present in the recovered extract were betulinic acid, gallic acid, chlorogenic acid, caffeic acid, ellagic acid, and ferulic acid. Both the developed BBD-RSM and evolved MGGP-based models predicted the observed process response of TPC, EY and AA satisfactorily with BBD-RSM models marginally better in their predictions. The reliability results showed that the BBD-RSM models predicted TPC, EY and AA values with high certainty of 99.985%, 97.569% and 98.661%, respectively.

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“…These were either: (1) the same and linked through the same atoms in the symmetrical dimers 31 [1,59] 32 [6] 33 [6,54] 34 [6,60,64] 35 [49] 36 [11] Table 2. Structures of dihydrophenanthrene monomers constituting the dimers 1 -36.…”

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confidence: 99%

Dihydrophenanthrene Dimers: Why and Where It Is Possible to Isolate Their Precursors

Fabio

Zarrelli

2023

Chemistry & Biodiversity

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An interesting class of compounds of natural origin is dihydrophenanthrene dimers, which are characterized by a series of remarkable biological properties. Considering the hypothesis that each dimer is obtained through a biosynthetic mechanism that involves the coupling of the corresponding radicals of the single dihydrophenanthrene unit, we identified 29 dihydrophenanthrenes. Of these dihydrophenanthrenes, 11 were new compounds that could be isolated from 10 different plant species; 11 had already been identified, but not yet isolated in the 17 different plant species from which the corresponding dimers had been isolated; and 7 were known and had been isolated in the same plant sources of the corresponding dimers. A targeted analysis of several natural extracts from specific plant sources would allow the identification of known or new molecules with potential and/or specific biological activities and, in a final analysis, would confirm the relative biosynthetic mechanism.

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Investigating the heat stability, calorimetric degradations and chromatographic polyphenolic profiling of edible macerated hog-tree apple leaf (Morinda lucida Benth)

Cited by 6 publications

References 16 publications

Upscalability and Techno-economic Perspectives of Nonconventional Essential Oils Extraction Techniques

Upscalability and Techno-economic Perspectives of Nonconventional Essential Oils Extraction Techniques

Process Optimization, Genetic Programming Modeling and Reliability Assessment of Bioactive Extracts Recovery From Phyllantus Emblica

Dihydrophenanthrene Dimers: Why and Where It Is Possible to Isolate Their Precursors

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