Applications and Prospects of Ultrasound-Assisted Extraction in Chinese Herbal Medicine

Zhou, Juhua

doi:10.38125/oajbs.000103

Cited by 13 publications

(4 citation statements)

References 154 publications

(193 reference statements)

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“…The difference in phenol contents and antioxidant activity can be explained by the polarity of the solvent used in the extraction, knowing that the high solubility of phenols in polar solvents facilitates a better yield in extracts obtained from them (Alara et al, 2021). This difference may also be due to several factors such as climate, soil, harvest period, storage condition, environmental factors (temperature, pH), or the extraction method (Ben Ahmed et al, 2017;Sun et al, 2019;Ngoune Liliane and Shelton Charles, 2020;Zeroual et al, 2021;Zhang et al, 2022).…”

Section: Discussion Discussion Discussionmentioning

confidence: 99%

Phytochemical studies and in vitro evaluation of the antioxidant activity of some medicinal and aromatic plants from Morocco

et al. 2023

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The present work was carried out to evaluate the phenolic compounds and the antioxidant activities of some solvent extract (methanol, hydroethanol and aqueous) of several Moroccan medicinal plants known for their high antioxidant properties. The extracts were obtained by sonication, then, the total phenolics and flavonoids compounds were determined using Folin-Ciocalteu and Aluminium chloride. Afterwards, the Total Antioxidant Capacity and DPPH scavenging methods were performed. Results of phytochemical analysis showed that the total phenolics content were the highest in the hydroethanolic extract of Arbutus unedo with 160.76 mg GAE g-1DM, and the flavonoids content were the highest for the hydroethanolic extracts of Inula viscosa with 489.77 mg QE g-1 DM. Also, it can be noted that Arbutus unedo, Argania spinosa, and Myrtus communis exhibited the most potent antioxidant activity respectively with 0.026; 0.043; 0.036 mg ml-1.

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Section: Discussion Discussion Discussionmentioning

confidence: 99%

Phytochemical studies and in vitro evaluation of the antioxidant activity of some medicinal and aromatic plants from Morocco

et al. 2023

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“…The ease with which ultrasound may be coupled with other extraction techniques and the ability to operate at room temperature minimizes the problems associated with the oxidation/decomposition of target products, successfully enabling the isolation of phenolic compounds, antioxidants and cyanine [ 145 ], which are important for producing cosmetics, nutraceutics and pharmaceutics [ 66 ]. UAE can be applied on both the microscale and macroscale to extract compounds derived from various forms of life [ 146 ], where the application of UAE is energy/solvent/time efficient, potentially offering high yields of delicate compounds [ 66 , 145 , 147 ]. The mechanical effects of ultrasound have wider implications than extraction alone, and by varying the power and frequencies, it can find applications both upstream and downstream, with a simple and inexpensive commercial integration [ 148 ] and optimisation [ 149 ].…”

Section: Extraction Methods For High-value Chemicalsmentioning

confidence: 99%

Extraction of High-Value Chemicals from Plants for Technical and Medical Applications

Kapadia

Newell

Cunningham³

et al. 2022

IJMS

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Plants produce a variety of high-value chemicals (e.g., secondary metabolites) which have a plethora of biological activities, which may be utilised in many facets of industry (e.g., agrisciences, cosmetics, drugs, neutraceuticals, household products, etc.). Exposure to various different environments, as well as their treatment (e.g., exposure to chemicals), can influence the chemical makeup of these plants and, in turn, which chemicals will be prevalent within them. Essential oils (EOs) usually have complex compositions (>300 organic compounds, e.g., alkaloids, flavonoids, phenolic acids, saponins and terpenes) and are obtained from botanically defined plant raw materials by dry/steam distillation or a suitable mechanical process (without heating). In certain cases, an antioxidant may be added to the EO (EOs are produced by more than 17,500 species of plants, but only ca. 250 EOs are commercially available). The interesting bioactivity of the chemicals produced by plants renders them high in value, motivating investment in their production, extraction and analysis. Traditional methods for effectively extracting plant-derived biomolecules include cold pressing and hydro/steam distillation; newer methods include solvent/Soxhlet extractions and sustainable processes that reduce waste, decrease processing times and deliver competitive yields, examples of which include microwave-assisted extraction (MAE), ultrasound-assisted extraction (UAE), subcritical water extraction (SWE) and supercritical CO2 extraction (scCO2). Once extracted, analytical techniques such as chromatography and mass spectrometry may be used to analyse the contents of the high-value extracts within a given feedstock. The bioactive components, which can be used in a variety of formulations and products (e.g., displaying anti-aging, antibacterial, anticancer, anti-depressive, antifungal, anti-inflammatory, antioxidant, antiparasitic, antiviral and anti-stress properties), are biorenewable high-value chemicals.

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“…Ultrasound-assisted extraction Sources -animal and plant protein sources [31] brown seaweed species [32] microalgae, yeasts, food and plant materials [33] Vitamins, carotenoids and phenolic compounds [31] Polyphenols, aromas, polysaccharides from plant [32] Alkaloids, flavonoids, glycosides [34] Phenolics, phlorotannins, flavonoids [32] Antioxidants, oils [33] 90 % [35] Heat reflux extraction Source -plants [36][37]…”

Section: Percolationmentioning

confidence: 99%

Methods for Extraction of Bioactive Compounds from Products: A Review

Luksta,

Spalvins

2023

Environmental and Climate Technologies

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Most agricultural by-products are not recycled or fully utilized. Most of them end up in waste and cause economic, social and environmental problems. Today, much of the byproducts are considered waste, although they can be appropriately recycled to produce new value-added products. By-products have great potential to create, for example, food additives. Many of these byproducts are a source of valuable compounds such as proteins, lipids, starches, trace elements, bioactive compounds and dietary fiber. A wide variety of extraction methods are currently available, but several factors must be considered to determine which of these methods can efficiently and environmentally produce high-value-added products from by-products. The article examines, summarizes and compares various extraction methods, as well as products that are currently obtained using specific methods.

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Applications and Prospects of Ultrasound-Assisted Extraction in Chinese Herbal Medicine

Cited by 13 publications

References 154 publications

Phytochemical studies and in vitro evaluation of the antioxidant activity of some medicinal and aromatic plants from Morocco

Phytochemical studies and in vitro evaluation of the antioxidant activity of some medicinal and aromatic plants from Morocco

Extraction of High-Value Chemicals from Plants for Technical and Medical Applications

Methods for Extraction of Bioactive Compounds from Products: A Review

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