scholarly journals The optimization of a conventional extraction of bioactive compounds from Cornus mas by RSM and the determination of favourability factors by GIS technique

2021 ◽  
Vol 49 (2) ◽  
pp. 12307
Author(s):  
Iuliana-Maria ENACHE ◽  
Gigi COMAN ◽  
Sanda ROȘCA ◽  
Camelia VIZIREANU ◽  
Liliana MIHALCEA
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Ethanol Concentration ◽  
Raw Material ◽  
Effect Of Temperature ◽  
Extraction Temperature ◽  
Solvent Concentration ◽  
Relevant Variable ◽  
Cornus Mas ◽  
Gis Technique

Rich in vitamins, polyphenols, carotenoids, carbohydrates, with a high antioxidant activity, cornelian cherry (Cornus mas) is one of the 65 species of Cornaceae family, fruits that are used in food industry, cosmetic industry or homeopathic medicine. The valuable bioactive compounds and the high economical potential of this tree makes suitable to be considered as a raw material to study the optimum extraction conditions in order to maximize the bioactive compounds’ concentration. In this study, the main purpose was to investigate both the favourable and restrictive conditions for Cornus mas using the GIS technique. The Remote Sensing and Geographic Information Systems (GIS) technique indicated the favourability factors for Cornus mas trees in Romania country. The response surface methodology was employed to study the effect of temperature, time and solvent concentration on the flavonoids’ (TFC) and polyphenols (TPC) concentrations and the antioxidant activity values. The maximum concentration of TPC (24.70 mg GAE/g raw material) and TFC (1.36 mg QE/g raw material) were obtained with 60% ethanol concentration at different temperature and time values. The cube model with centred faces for the Box-Behnken central composition revealed the highest value of the concentration of TAA (101.31 mg TE/g raw material) at 100% ethanol concentration, 50 °C extraction temperature and the maximum extraction time of 30 min. The most relevant variable was the solvent concentration and the obtained results suggested that the central-face cube model (86% for TPC, 97% for TFC and 95% antioxidant activity) approximated the experimental data.

scholarly journals The Influence of Temperature, Storage Conditions, pH, and Ionic Strength on the Antioxidant Activity and Color Parameters of Rowan Berry Extracts

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3786
Author(s):  
Elena Cristea ◽  
Aliona Ghendov-Mosanu ◽  
Antoanela Patras ◽  
Carmen Socaciu ◽  
Adela Pintea ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ionic Strength ◽  
Organic Acids ◽  
Bioactive Compounds ◽  
Acid Methyl Ester ◽  
Storage Conditions ◽  
Raw Material ◽  
Thermal Treatments ◽  
Spectrophotometric Methods ◽  
Berry Extracts

Recent trends in the food industry combined with novel methods in agriculture could transform rowan into a valuable raw material with potential technological applications. Thus, the aim of this research was to investigate the content of bioactive compounds in its fruits and to assess the color and antioxidant stability of the extracts prepared from such fruits during various thermal treatments and at different pH and ionic strength values. Various spectrophotometric methods, HPLC, and capillary electrophoresis were used to quantify the concentrations of bioactive compounds—polyphenols, carotenoids, organic acids, and to assess antioxidant activity and color. The results show that rowan berries contain circa 1.34–1.47 g/100 g of polyphenols among which include catechin, epicatechin, ferulic acid methyl ester, procyanidin B1, etc.; ca 21.65 mg/100 g of carotenoids including zeaxanthin, β-cryptoxanthin, all-trans-β-carotene, and various organic acids such as malic, citric, and succinic, which result in a high antioxidant activity of 5.8 mmol TE/100 g. Results also showed that antioxidant activity exhibited high stability when the extract was subjected to various thermal treatments, pHs, and ionic strengths, while color was mainly impacted negatively when a temperature of 100 °C was employed. This data confirms the technological potential of this traditional, yet often overlooked species.

scholarly journals Extraction of Phytosterol Concentration in Different Legume Pods by Using Microwave-Assisted Hydrodistillation

2019 ◽  
Vol 19 (3) ◽  
pp. 796
Author(s):  
Noormazlinah Noormazlinah ◽  
Norlaili Hashim ◽  
Abdurahman Hamid Nour ◽  
Mimi Sakinah Abdul Munaim ◽  
Maria Pilar Almajano ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Microwave Power ◽  
Ethanol Concentration ◽  
Irradiation Time ◽  
Optimal Conditions ◽  
Solvent Concentration ◽  
Visible Spectroscopy ◽  
Optimum System ◽  
Microwave Assisted ◽  
Extraction Parameters

The traditional ways in the extraction of bioactive compounds using conventional methods are disadvantageous from both economic and environmental perspectives. In this, the potential of microwave-assisted hydrodistillation conditions for extraction of phytosterol from legume pods was investigated. Salkowski test performed on the legume pod has shown the reddish brown in all sample which confirmed the presence of phytosterol qualitatively. Liebermann-Burchard procedure and ultraviolet-visible spectroscopy (UV-Vis) apparatus were used to study the concentration of phytosterol at different extraction parameters which are temperature (25–80 °C), solvent concentration (50–100% v/v), irradiation time (1–10 min) and microwave power (400–800 W). The optimal conditions for highest yield of extract (0.219 mg/L) were obtained at a microwave power of 600 W, the irradiation time of 6 min, and ethanol concentration of 75% v/v. Results obtained in this study have shown the capability of microwave-assisted hydrodistillation in the extraction of phytosterol from legume pod. Further works are nevertheless required to provide a deeper understanding of the mechanisms involved to facilitate the development of an optimum system applicable to the industry.

scholarly journals Green Extraction Methods for Active Compounds from Food Waste—Cocoa Bean Shell

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 140 ◽  
Author(s):  
Pavlović ◽  
Jokić ◽  
Jakovljević ◽  
Blažić ◽  
Molnar
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Extraction Methods ◽  
Cocoa Bean ◽  
Extraction Temperature ◽  
Future Trends ◽  
Active Compounds ◽  
Dpph Method

This is the first report on the extraction of cocoa bean shell (CBS) using deep eutectic solvents (DESs). Screening results with 16 different choline chloride-based DESs showed how choline chloride:oxalic acid DES was the most suitable solvent for the extraction of the bioactive compounds from CBS and that concentrations varied greatly depending on the used solvent. The DES extraction was compared to the DESs coupled with microwave extraction (MAE), and the yields of the extracted compounds were higher for DES/MAE. For theobromine, the obtained yields for DES extraction were 2.145–4.682 mg/g, and for caffeine, were 0.681–1.524 mg/g, whereas for DES/MAE, the same compounds were obtained in 2.502–5.004 mg/g and 0.778–1.599 mg/g. Antioxidant activity was also determined, using DPPH method, obtaining 24.027–74.805% activity for DES extraction and 11.751–55.444% for DES/MAE. Water content significantly influenced the extraction of targeted active compounds from CBS, whereas extraction time and temperature did not show statistically significant influence. The extraction temperature only influenced antioxidant activity. The study demonstrated how extraction using DES and microwaves could be of a great importance in the future trends of green chemistry for the production of CBS extracts rich in bioactive compounds.

scholarly journals Extraction Process of Polyphenols from Soybean (Glycine max L.) Sprouts: Optimization and Evaluation of Antioxidant Activity

Processes ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 489 ◽  
Author(s):  
Xuan Tien Le ◽  
Vo Luu Lan Vi ◽  
Tran Quoc Toan ◽  
Long Giang Bach ◽  
Tran Thanh Truc ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethanol Concentration ◽  
Dry Weight ◽  
Extraction Process ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Polyphenol Content ◽  
Experimental Conditions ◽  
Total Polyphenol ◽  
Total Polyphenol Content

This research aimed to optimize the total polyphenol content (TPC) extracted from soybean sprout powder under different experimental parameters, including ethanol concentration (60–100% v/v), extraction temperature (40–80 °C), extraction time (15–150 min), material:solvent ratio (1:4–1:10 g/mL), the number extraction cycles (1, 2 and 3 times), the age of sprout (0–7 days), and the used part of the sprout (cotyledon, hypocotyl, or radicle). The obtained results were used in response surface methodology, in combination with a central composite design, to model the total polyphenol content (TPC) with respect to three variables, including ethanol concentration, extraction temperature, and material:solvent ratio. The experimental conditions for optimal recovery of TPC consisted of ethanol concentration of 88% (v/v), extraction temperature of 59 °C, material:solvent ratio of 1:6.5 g/mL, extraction time of 60 min, and 2 cycles of maceration. In addition, for maximal TPC, the sprout should undergo the germination of 5 days and the radicle fraction should be used. Based on the suggested optimum conditions, the obtained and verified TPC was 19.801 mg genistein (GE)/g dry weight (d.w.). The obtained dried extract also exhibited low antioxidant activity.

scholarly journals Supercritical Fluid Extraction of Polyphenols from Vietnamese Callisia fragrans Leaves and Antioxidant Activity of the Extract

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Le Thao My Phan ◽  
Kim Thien Phuc Nguyen ◽  
Hoai Thanh Vuong ◽  
Do Dat Tran ◽  
Tran Xuan Phuong Nguyen ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Flow Rate ◽  
Ethanol Concentration ◽  
Soxhlet Extraction ◽  
Extraction Temperature ◽  
Total Polyphenol ◽  
High Antioxidant Activity ◽  
Medicinal Properties ◽  
Temperature And Pressure ◽  
Single Factor Experiment

Vietnamese Callisia fragrans (C. fragrans) has been considered as a valuable traditional plant with various medicinal properties. In this study, polyphenols were extracted from Vietnamese C. fragrans leaves by supercritical carbon dioxide (SC-CO2) extraction method using ethanol as a cosolvent. The investigation of four factors influencing the total polyphenol content (TPC) and antioxidant activity of the extracts obtained from each single-factor experiment was conducted including ethanol concentration, CO2 flow rate, extraction temperature, and pressure. Besides, the extraction efficiency of the SC-CO2 method under the best extraction conditions, namely ethanol concentration of 14%, CO2 flow rate of 20 g/min, extraction temperature of 45°C, and pressure of 200 bar was compared to that of the Soxhlet extraction (SE) method in terms of the TPC and antioxidant activity of the extracts. The results showed that using SC-CO2 method, the TPC and the half-maximal inhibitory concentration value obtained were of 87.42 ± 1.33 mg/g and 243.83 ± 5.30 μM TE/g, respectively, with much less time and solvent amount required while that obtained using SE method were of 85.34 ± 4.27 mg/g and 236.33 ± 7.66 μM TE/g, respectively. This indicated that SC-CO2 would be suitable for the industrial production of polyphenols with high antioxidant activity of the extracts obtained due to the restrictions of using the SE method and advantages of applying SC-CO2 method. Therefore, SC-CO2 method could be regarded as a potentially upcoming extraction technique which might be employed to replace the conventional SE method.

scholarly journals Influences of Microwave-Assisted Extraction Parameters on Antioxidant Activity of the Extract from Akebia trifoliata Peels

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1432
Author(s):  
Min Luo ◽  
Dan-Dan Zhou ◽  
Ao Shang ◽  
Ren-You Gan ◽  
Hua-Bin Li
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Microwave Power ◽  
Ethanol Concentration ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Extraction Temperature ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Extraction Parameters

Akebia trifoliata is a fruit with rich nutritional properties, and its peel is produced as a by-product. In this research, we investigated the influences of microwave-assisted extraction parameters on antioxidant activity of the extract from Akebia trifoliata peels, and the ferric-reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) as well as total phenolic contents (TPC) were used to optimize extraction parameters. The influences of ethanol concentration, microwave power and solvent-to-material ratio, as well as extraction temperature and time on TPC, FRAP and TEAC values, were assessed using single-factor tests. Three parameters with obvious effects on antioxidant capacity were selected to further investigate their interactions by response surface methodology. The optimal extraction parameters of natural antioxidants from Akebia trifoliata peels were ethanol concentration, 49.61% (v/v); solvent-to-material ratio, 32.59:1 mL/g; extraction time, 39.31 min; microwave power, 500 W; and extraction temperature, 50 °C. Under optimal conditions, the FRAP, TEAC and TPC values of Akebia trifoliata peel extracts were 351.86 ± 9.47 µM Fe(II)/g dry weight (DW), 191.12 ± 3.53 µM Trolox/g DW and 32.67 ± 0.90 mg gallic acid equivalent (GAE)/g DW, respectively. Furthermore, the main bioactive compounds (chlorogenic acid, rutin and ellagic acid) in the extract were determined by high-performance liquid chromatography. The results are useful for the full utilization of the by-product from Akebia trifoliate fruit.

Extraction of Polysaccharide From Zizyphus Lotus Fruits

2012 ◽  
Vol 8 (3) ◽  
Author(s):  
Moncef Chouaibi ◽  
Leila Rezig ◽  
Khaled Ben daoued ◽  
Nesrine Mahfoudhi ◽  
Habib Bouhafa ◽  
...  
Keyword(s):  
Response Surface ◽  
Ethanol Concentration ◽  
Gel Permeation Chromatography ◽  
Processing Parameters ◽  
Physicochemical Analysis ◽  
Raw Material ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Optimal Processing ◽  
Contour Plots

Abstract In this study, response surface methodology (RSM) was used to optimize the extraction conditions of polysaccharides from the pulp of Zizyphus lotus fruit. A central composite rotatable design (CCRD) was used for experimental design and analysis of the results to obtain the optimal processing parameters. Ethanol concentration, extraction temperature, extraction time and water to raw material ratio were found to have a significant effect ( p < 0.05) on the yield of Zizyphus lotus polysaccharide. The 3-D response surface and contour plots, derived from the mathematical model, were applied to determine the optimal conditions. The optimum conditions were as follows: water to raw material ratio 22.04:1, ethanol concentration of 83.30 %, extraction time of 2.65 h, and extraction temperature of 66.31 °C. Under these conditions, the experimental percentage value was 17.35±0.07 %, which is in well close agreement with the value predicted by the model (17.29 %). The results of physicochemical analysis showed that the main sugar composition of Zizyphus lotus polysaccharide, purified by Sephadex G-75 gel permeation chromatography, was glucose followed by arabinose, mannose and rhamnose.

scholarly journals Bioactive compounds and physical attributes of Cornus mas genotypes through multivariate approaches

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Bünyamin Demir ◽  
Bahadır Sayinci ◽  
Ahmet Sümbül ◽  
Mehmet Yaman ◽  
Ercan Yildiz ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Fourier Method ◽  
Shape Index ◽  
Total Phenolic ◽  
Elliptic Fourier Analysis ◽  
Cornelian Cherry ◽  
Cornus Mas ◽  
Physical Attributes ◽  
High Antioxidant Activity

AbstractCornelian cherry fruits are quite rich in bioactive compounds. Natural colour, rich flavonoids and anthocyanins and high antioxidant activity have made the fruits a natural drug. In the present study, antioxidant activity, total flavonoids and total phenolics of naturally growing 18 cornelian cherry genotypes with different phenotypic characteristics were determined. Size and shape parameters of the genotypes were also determined with the image-processing method; sphericity, elongation and shape index were calculated and shapes of two-dimensional fruit images were compared with elliptic Fourier analysis. Antioxidant activity, total flavonoid contents and total phenolic amounts of the genotypes were varied between 55.062 and 152.420 mmol TE · kg−1, 286.40 and 2,882.80 mg QE · kg−1, and 2,644.80 and 12,959.00 mg GAE · kg−1, respectively. Multivariate variance analysis conducted based on physical characteristics revealed that six genotypes were different from the others. Shape analysis with Elliptic Fourier method revealed that the majority of present cornelian cherry genotypes had an oval appearance and a small portion of them had a drop-like appearance. According to discriminant analysis and Hotelling's pair-wise comparison tests, there were five different shape groups for present genotypes. A single genotype was placed into one of these groups, thus it was determined that this genotype was totally different in shape from the others.

scholarly journals The Effect of Temperature on Extraction of Swietenia Mahagoni by Ultrasound–assisted Extraction (UAE) Method

2016 ◽  
Vol 16 (1) ◽  
pp. 45 ◽  
Author(s):  
Ike Dayi Febriana ◽  
Heri Septya Kusuma ◽  
Selfina Galan ◽  
Mahfud Mahfud
Keyword(s):  
Azo Dyes ◽  
Organic Dyes ◽  
Natural Dye ◽  
Raw Material ◽  
Effect Of Temperature ◽  
Extraction Temperature ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Swietenia Mahagoni

Azo dyes are synthetic organic dyes which have azo group (-N=N-) as chromophore. Waste of azo dyes have not been able to overcome completely so that requires solutions of natural dye. Raw material of natural dye can be obtained from Swietenia mahagoni. Natural dye can be extracted by ultrasound-assisted extraction (UAE) method. The pupose of this research is to study the factor that influence UAE. Observed factor is influence of extraction temperature to the yield of natural dye. This research was conducted using ratio of material to solvent of 0.05 g/L with extraction time at 40 minute. Extraction temperature was observed at 30, 40, and 50oC. Ultrasonic wave that used for this research at 40 kHz. The result is increasing temperature will be allow the increasing trend of yield. The result indicate that there is about 9.2748% improvement in the yield of extract due to increasing extraction temperature from 30oC to 50oC

scholarly journals Ultrasonication assisted extraction of total flavonoids from Kaempferia galanga L. and its antioxidant activity

2020 ◽  
Vol 49 (3) ◽  
pp. 601-609
Author(s):  
Zhaobao Xiang ◽  
Xiaoling Wu ◽  
Xue Zhong
Keyword(s):  
Antioxidant Activity ◽  
Ethanol Concentration ◽  
Extraction Time ◽  
Total Flavonoids ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Optimum Conditions ◽  
Validation Test ◽  
Kaempferia Galanga ◽  
Assisted Extraction

Ultrasonication assisted extraction (UAE) was employed to extract total flavonoids (TF) from Kaempferia galanga L. (KGL) roots. Single-factor experiments were performed to evaluate the effects of the process parameters (solvent-to-material ratio, ethanol concentration, extraction time, ultrasonic power, and extraction temperature) on the TF yield and the response surface methodology (RSM) was used to optimize the extraction parameters. The optimum conditions to obtain the maximum TF yield were solvent-to-material ratio, 25; ethanol concentration, 62%; extraction time, 27.0 min; extraction temperature, 50℃ and ultrasonic power, 225 W. The yield of TF under these conditions reached 3.22 ± 0.12 mg/g of dry root. The analysis of variance and validation test indicated that the proposed method is useful and reliable. The antioxidant capacities of TF of KGL was determined by DPPH· and ABTS+· methods, which revealed that it has good antioxidant activity in both systems.

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