scholarly journals Ultrasonic-Assisted Thymol and Carvacrol Extraction from Za’atar Leaves Using Cold-Pressed Sesame Oil

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Noyal Aweidah ◽  
Hani Naseef ◽  
Ramzi Muqdi ◽  
Mohammad A. Farraj
Keyword(s):  
Analytical Method ◽  
High Performance ◽  
Sesame Oil ◽  
Cultivation Conditions ◽  
Sesame Seeds ◽  
Extraction Solvent ◽  
Ultrasonic Assisted ◽  
Buffering Agent ◽  
Cold Pressed ◽  
Natural Preservatives

Thymol and carvacrol found in Origanum syriacum “Za’atar” plant leaves have triggered interest among researchers for their natural antimicrobial and antifungal properties. However, their applications in modern pharmaceutical and cosmetic industries as natural preservatives remain challenging. In this research, extraction of thymol and carvacrol from Za’atar leaves has been investigated using the ultrasonic-assisted method and the use of sesame oil as the primary extraction solvent compared with other vegetable oils including sunflower and olive oils. In addition, a high-performance liquid chromatography (HPLC) analytical method was developed by using a C8 column and 0.05% trifluoroacetic acid as a buffering agent. The method was validated for specificity, linearity, repeatability, accuracy, and robustness for the analysis of the content of the two terpenes thymol and carvacrol in different Za’atar extracts. Using the validated analytical method, thymol and carvacrol content results revealed the best vegetable oil for extraction. Results showed that sesame oil had the highest content of thymol and carvacrol, followed by sunflower oil, and the least amount obtained by using olive oil. A consistent extraction result opens an opportunity for application in the pharmaceutical and cosmetic industries. For this reason, the essential extraction key parameters that influence the final content of thymol and carvacrol were evaluated. The highest impact originated from the quality and volume of sesame oil. Cold-pressed sesame oil resulted in a 23% higher content of thymol and decreased amount of carvacrol. It was found that wetting the Za’atar leaves powder with sesame oil was enough for extraction; any additional sesame oil volume dilutes the extracted sample. The second impact was the Za’atar cultivation conditions; less than 10% difference of thymol and carvacrol content was observed within Za’atar of Hebron origin. Finally, the origin of sesame seeds used for sesame oil production had the least impact.

scholarly journals A Green and Efficient Method for the Preconcentration and Determination of Gallic Acid, Bergenin, Quercitrin, and Embelin from Ardisia japonica Using Nononic Surfactant Genapol X-080 as the Extraction Solvent

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Ying Chen ◽  
Kunze Du ◽  
Jin Li ◽  
Yun Bai ◽  
Mingrui An ◽  
...  
Keyword(s):  
Gallic Acid ◽  
High Performance ◽  
Solution Ph ◽  
Experimental Conditions ◽  
Micellar Extraction ◽  
Extraction Solvent ◽  
Ultrasonic Assisted ◽  
Preconcentration Factor ◽  
Interday Precision

A simple cloud point preconcentration method was developed and validated for the determination of gallic acid, bergenin, quercitrin, and embelin in Ardisia japonica by high-performance liquid chromatography (HPLC) using ultrasonic assisted micellar extraction. Nonionic surfactant Genapol X-080 was selected as the extraction solvent. The effects of various experimental conditions such as the type and concentration of surfactant and salt, temperature, and solution pH on the extraction of these components were studied to optimize the conditions of Ardisia japonica. The solution was incubated in a thermostatic water bath at 60°C for 10 min, and 35% NaH2PO4 (w/v) was added to the solution to promote the phase separation and increase the preconcentration factor. The intraday and interday precision (RSD) were both below 5.0% and the limits of detection (LOD) for the analytes were between 10 and 20 ng·mL−1. The proposed method provides a simple, efficient, and organic solvent-free method to analyze gallic acid, bergenin, quercitrin, and embelin for the quality control of Ardisia japonica.

scholarly journals Determination and Daily Intake Estimation of Lignans in Sesame Seeds and Sesame Oil Products in Korea

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 394 ◽  
Author(s):  
A-Young Kim ◽  
Choong-In Yun ◽  
Joon-Goo Lee ◽  
Young-Jun Kim
Keyword(s):  
High Performance ◽  
Eating Habits ◽  
Daily Intake ◽  
Sesame Oil ◽  
Oil Products ◽  
Korean Population ◽  
Health Examination ◽  
Sesame Seeds ◽  
Consumption Data ◽  
Important Health

Sesame (Sesamum indicum L.) is a plant that belongs to the Pedaliaceae family which was first classified as a food source around 4000 years ago. Lignans (sesamin, sesamolin, sesamol, and sesaminol) present in sesame are the primary functional compounds that impart important health benefits. However, very little information is available on the lignan intake from sesame seeds and sesame oil products. Sesame oil is frequently and highly consumed in Korea and therefore is one of the important lignan intake sources due to the food eating habits of Koreans. Herein, we studied the distribution of lignans in sesame seeds (n = 21) and oil (n = 34) to estimate the daily lignan intake by the Korean population. High-performance liquid chromatography, in conjunction with statistical analysis, was used to determine the lignan content of seeds and oil. The estimated daily intake of total lignans from sesame seeds and oil, as estimated from the available domestic consumption data (Korea Nutrition and Health Examination Survey), is 18.39 mg/person/day for males and 13.26 mg/person/day for females. The contributions of lignan intake from sesame seeds and oil are 23.0% and 77.0%, respectively. This study provides preliminary information on lignan intake from sesame seeds and oil in the Korean population.

scholarly journals Comparison of Refluxing, Ultrasonic- and Microwave-Assisted Extraction of Dihydromyricetin from Ampelopsis grossedentata

2008 ◽  
Vol 91 (6) ◽  
pp. 1278-1283 ◽  
Author(s):  
Hui Li ◽  
Yanan Li ◽  
Yongkang Zhang ◽  
Hui Shi ◽  
Wenbin Hu ◽  
...  
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Extraction Efficiency ◽  
Chemical Constituents ◽  
Microwave Assisted Extraction ◽  
Extraction Solvent ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ampelopsis Grossedentata

Abstract Three techniquesrefluxing extraction (RE), ultrasonic-assisted extraction (UAE), microwave-assisted extraction (MAE)for extraction of dihydromyricetin from Ampelopsis grossedentata, family Vitaceae, were evaluated. A 70 methanolwater solution was used as extraction solvent, and extracts obtained were analyzed by high-performance liquid chromatography (HPLC). Results showed that the MAE method was the most efficient in the shortest time, followed by RE and UAE. Maximum extraction efficiency of dihydromyricetin was obtained by using the MAE technique, which needs only 10 min, whereas UAE and RE require 40 and 300 min, respectively, to gain higher extraction efficiency of dihydromyricetin. The time needed for MAE was 30 times less than that needed for RE. Extracts obtained by using different methods were shown by HPLC analysis to possess similar chemical constituents, and extraction reproducibility was satisfactory for these techniques. Compared with UAE and RE, the MAE is a better alternative extraction technique for large-scale speedy extraction of dihydromyricetin from this plant.

scholarly journals Reduction of Polycyclic Aromatic Hydrocarbons (PAHs) in Sesame Oil Using Cellulosic Aerogel

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 644
Author(s):  
Do-Yeong Kim ◽  
Boram Kim ◽  
Han-Seung Shin
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Oil Quality ◽  
Acid Value ◽  
Quality Parameters ◽  
Sesame Oil ◽  
Miscanthus Sinensis ◽  
Polycyclic Aromatic ◽  
And Control

The effect of cellulosic aerogel treatments used for adsorption of four polycyclic aromatic hydrocarbons (PAHs)—benzo[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene [BaP])—generated during the manufacture of sesame oil was evaluated. In this study, eulalia (Miscanthus sinensis var. purpurascens)-based cellulosic aerogel (adsorbent) was prepared and used high performance liquid chromatography with fluorescence detection for determination of PAHs in sesame oil. In addition, changes in the sesame oil quality parameters (acid value, peroxide value, color, and fatty acid composition) following cellulosic aerogel treatment were also evaluated. The four PAHs and their total levels decreased in sesame oil samples roasted under different conditions (p < 0.05) following treatment with cellulosic aerogel. In particular, highly carcinogenic BaP was not detected after treatment with cellulosic aerogel. Moreover, there were no noticeable quality changes in the quality parameters between treated and control samples. It was concluded that eulalia-based cellulosic aerogel proved suitable for the reduction of PAHs from sesame oil and can be used as an eco-friendly adsorbent.

scholarly journals Optimizing the ultrasonic-assisted extraction of antioxidants from Ulva lactuca algal biomass using factorial design

2021 ◽  
Author(s):  
Sayed Rashad ◽  
Ghadir El-Chaghaby ◽  
Eder C. Lima ◽  
Glaydson Simoes dos reis
Keyword(s):  
Factorial Design ◽  
Algal Biomass ◽  
Ulva Lactuca ◽  
Extraction Technique ◽  
Extraction Solvent ◽  
Assisted Extraction ◽  
Study Results ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction ◽  
Optimum Extraction

AbstractUltrasonic-assisted extraction (UAE) is increasingly emerging as a highly effective extraction technique. This extraction technique is affected by several experimental factors. The present work aimed to optimize the ultrasonic-assisted extraction of antioxidants from Ulva lactuca (sea lettuce), widespread macroalgae growing along the Mediterranean coast. In this respect, a full-factorial design (23) was employed to assess the effect of three different factors at two levels and their interactions on the extraction of antioxidants from sea lettuce algal biomass. The studied factors were extraction solvent, time of extraction, and temperature. The two levels chosen for extraction solvent were 100% ethanol and 50% ethanol, for the sonication time (1 h and 3 h) and temperature (25 °C and 40 °C). All experiments were done using an ultrasonic bath, and the biomass to solvent ratio was kept at 1:5. Total antioxidant capacity and quercetin concentration were set as the two responses for optimum output. The results showed that the temperature and solvent were the dominating factors that significantly affect the extraction process. The optimum extraction parameters were extraction time of 1 h, 50% ethanol, and temperature of 25 °C. Under these conditions, the maximum value for TAA was calculated as 2166.51 mg of ascorbic acid equivalent per gram (mg/g of AAE), and quercetin showed a maximum calculated value of 42.5 mg/g with combined desirability of 0.91 for the two responses. The present study results indicate that U. lactuca can be used as a source of antioxidants and phenolic compounds that can be applied in food and medicine at optimum extraction conditions. Graphical abstract

High-performance polyvinylpyrrolidone capped copper coatings via ultrasonic-assisted supercritical-CO2 electrodeposition: Electrochemical evaluation

2021 ◽  
Vol 409 ◽  
pp. 126926
Author(s):  
Sabarison Pandiyarajan ◽  
Po-Ju Hsiao ◽  
Ai-Ho Liao ◽  
Muthusankar Ganesan ◽  
Sheng-Tung Huang ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
High Performance ◽  
Copper Coatings ◽  
Ultrasonic Assisted ◽  
Electrochemical Evaluation

scholarly journals Optimization of a Method for Extraction and Determination of Residues of Selected Antimicrobials in Soil and Plant Samples Using HPLC-UV-MS/MS

2021 ◽  
Vol 18 (3) ◽  
pp. 1159
Author(s):  
Klaudia Kokoszka ◽  
Agnieszka Kobus ◽  
Sylwia Bajkacz
Keyword(s):  
Nalidixic Acid ◽  
High Performance ◽  
Solid Phase ◽  
Sewage Treatment ◽  
Animal Manure ◽  
Uv Detector ◽  
Citrate Buffer ◽  
High Biological Activity ◽  
Extraction Solvent

The residues of antimicrobials used in human and veterinary medicine are popular pollutants of anthropogenic origin. The main sources of introducing antimicrobials into the environment are sewage treatment plants and the agricultural industry. Antimicrobials in animal manure contaminate the surrounding soil as well as groundwater, and can be absorbed by plants. The presence of antimicrobials in food of plant origin may pose a threat to human health due to their high biological activity. As part of the research, a procedure was developed for the extraction and determination of ciprofloxacin, enrofloxacin, cefuroxime, nalidixic acid and metronidazole in environmental samples (soil and parsley root). An optimized solid-liquid extraction (SLE) method was used to separate antimicrobials from the solid samples and a mixture of citrate buffer (pH = 4): methanol (1:1; v/v) was used as the extraction solvent. Solid phase extraction (SPE) with OASIS® HLB cartridges was used to purify and pre-concentrate the sample. The recovery of the developed method was in the range of 55–108%. Analytes were determined by high-performance liquid chromatography coupled with an ultraviolet (UV) detector and a tandem mass spectrometer (HPLC-UV-MS/MS). The procedure was validated and applied to the determination of selected antimicrobials in soil and parsley root samples. Five types of soil and five types of parsley roots of different origins were analyzed. The presence of nalidixic acid in the parsley root samples was found in the concentration range of 0.14–0.72 ng g−1. It has been shown that antimicrobials are absorbed by the plant and can accumulate antimicrobials in its edible parts.

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