Effect of ultrasound-assisted extraction of lemongrass (Cymbopogon citratus) essential oil

2021 ◽  
Author(s):  
Duc Le Anh ◽  
Kien Pham Van ◽  
Thanh Bui Trung
Keyword(s):  
Essential Oil ◽  
Cymbopogon Citratus ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasound Assisted

Ultrasound-assisted extraction and dispersive liquid–liquid microextraction coupled with gas chromatography-mass spectrometry for the sensitive determination of essential oil components in lavender

2019 ◽  
Vol 11 (11) ◽  
pp. 1541-1550 ◽  
Author(s):  
Ping Chen ◽  
Bing Liu ◽  
Xin Liu ◽  
Jihong Fu
Keyword(s):  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Sensitive Determination ◽  
Ultrasound Assisted ◽  
Oil Components ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Ultrasound-assisted extraction and dispersive liquid–liquid microextraction coupled with GC-MS for the sensitive determination of essential oil components in lavender.

The development of ultrasound-assisted extraction/dispersive liquid–liquid microextraction coupled with DSI-GC-IT/MS for analysis of essential oil from fresh flowers of Edgeworthia chrysantha Lindl.

2014 ◽  
Vol 6 (10) ◽  
pp. 3345-3352 ◽  
Author(s):  
Ya Wen ◽  
Jing Nie ◽  
Zu-Guang Li ◽  
Xin-Yi Xu ◽  
Dan Wei ◽  
...  
Keyword(s):  
Essential Oil ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Novel Method ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

A simple and novel method was successfully developed for determination of essential oil from fresh flowers of Edgeworthia chrysantha Lindl. by using UAE-DLLME coupled with DSI-GC-IT/MS.

scholarly journals Ultrasound-Assisted Extraction of Lavender (Lavandula angustifolia Miller, Cultivar Rosa) Solid By-Products Remaining after the Distillation of the Essential Oil

2021 ◽  
Vol 11 (12) ◽  
pp. 5495
Author(s):  
Federica Turrini ◽  
Margherita Beruto ◽  
Luciano Mela ◽  
Paolo Curir ◽  
Giorgia Triglia ◽  
...  
Keyword(s):  
Essential Oil ◽  
Agricultural Waste ◽  
Total Phenolic ◽  
Ultrasound Assisted Extraction ◽  
Lavandula Angustifolia ◽  
Valuable Source ◽  
Multifunctional Compounds ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
By Products

FINNOVER is an EU Interreg-Alcotra project that aims to bring new perspectives to floriculture enterprises by recovering useful bioproducts from the waste produced during processing of several aromatic species. In this study, a new operation strategy to recover lavender (Lavandula angustifolia Mill.) solid by-products remaining after the extraction of the essential oil was developed. Pulsed ultrasound-assisted extraction was employed as a sustainable and eco-compatible technology to extract, in a very short time (10 min), this agricultural waste using a food-grade solvent (a mixture of ethanol/water). All the extracts obtained from both flower and leaf waste and flower-only residues, exhibit a promising total phenolic content (38–40 mg gallic acid/g of dry waste), radical scavenging activity (107–110 mg Trolox/g of dry waste) and total flavonoid content (0.11–0.13 mg quercetin/g of dry waste). Moreover, the chromatographic analysis of these extracts has shown that this overlooked agriculture waste can represent a valuable source of multifunctional compounds. Particularly, they exhibit a content of polyphenols and flavonoids up to 200 times higher than the corresponding leachate, and they are a valuable source of gentisic acid (1.4–13 mg/g dry waste) representing a new low-cost ingredient usable in different fields (i.e., cosmetic).

Innovative Extraction Techniques for the Optimum Extraction of Phenolic Compounds from Peanut Meal and Evaluation of Their Biological Activities

2019 ◽  
Vol 4 (2) ◽  
Keyword(s):  
Phenolic Compounds ◽  
Carcinoma Cell ◽  
Biological Activities ◽  
Peanut Meal ◽  
Ultrasound Assisted Extraction ◽  
Carcinoma Cell Lines ◽  
Assisted Extraction ◽  
Phenolic Extract ◽  
Ultrasound Assisted ◽  
Water Ratio

There is a worldwide demand for phenolic compounds (PC) because they exhibit several biological activities. This work aimed at extracting phenolic compounds from peanut meal. The methods of extraction were mainly: conventional solvent extraction (traditional methods) and ultrasound assisted extraction (recent methods) and comparing their results. Peanut meal (PM) was prepared by defatting with n-hexane, and then extracted by the two previous methods. First, the conventional solvents used were 80% methanol, ethanol, acetone, isopropanol, and distilled water. Then studied Different parameters such as meal: water ratio, also the effect of temperature and the pH on the extraction process. Second, ultrasonic assisted extractions (USAE), the parameters investigated were temperature, time and speed of sonication. Finally, all the extracts were analyzed by HPLC for their phenolic contents. Results indicated that the highest extracted PC achieved by solvents was in distilled water where 1:100, Meal: Water ratio which extracted 40 mg PC / g PM at 30& 35°C. Highest extracted PC was achieved by alkaline medium at pH 12 more than acidic and neutral medium. While (USAE) at speed 8 ultrasonication and temperature 30ᵒC, extracted 49.2mg PC /g PM. Sothe ultrasound assisted extraction exhibited great influence on the extraction of phenolic compounds from peanut meal. The ultrasonic peanut extract was examined for its antioxidant, antimicrobial and anticarcinogenic activities. The antioxidant activity of PM phenolic extract prepared by ultrasonic technique, was measured by, β-carotene, and DPPH methods, and reducing antioxidant power. Results revealed values: 84.57, 57.72 and 5960 respectively. The PM extract showed different levels of antimicrobial activity against the pathogenic bacteria used. As for the anticarcinogenic effect PM phenolic extract most effective on inhibiting colon carcinoma and lung carcinoma cell lines with IC50 = 20.7 and 20.8 µ/ml., respectively. This was followed by intestinal carcinoma and liver carcinoma cell lines with IC50= 39.6 and 40.2µ/ml.

Greener ultrasound-assisted extraction of bioactive phenolic compounds in Croton heliotropiifolius Kunth leaves

2020 ◽  
Vol 159 ◽  
pp. 105525 ◽  
Author(s):  
Cheila B. do C. de Sousa ◽  
Gilvanda L. dos Anjos ◽  
Rafaela S.A. Nóbrega ◽  
Andréia da S. Magaton ◽  
Fabrício M. de Miranda ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasound Assisted
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