Optimization of Microwave-Assisted Extraction Conditions of Anthocyanins from Black Corn Hull Using Response Surface Methodology

2013 ◽  
Vol 864-867 ◽  
pp. 536-540 ◽  
Author(s):  
Yi Hua Jiang ◽  
Xin Long Jiang ◽  
Qing Hua Ma

Abstract: Surface response optimization of microwave-assisted extraction (MAE) conditions of anthocyanins from black corn hull with the factors of ethanol concentration, microwave power, extraction time, solid/liquid ratio (g:mL) on the yield of anthocyanin were studied.The results showed that optimum extracting conditions of anthocyanin from black corn hull were as follows: adding 1:40.00 (m:v) of 79.67% alcohol (pH1.0) and extracting for 79.25 s,microwave irradiation power 560.00W.

2014 ◽  
Vol 1004-1005 ◽  
pp. 868-872
Author(s):  
Yi Hua Jiang ◽  
Xin Long Jiang ◽  
Cheng Gang Cai

Orthogonal experiment optimization of microwave-assisted extraction (MAE) conditions of total flavonoids from castor leaves with the factors of ethanol concentration, microwave power, extraction time, solid/liquid ratio on the yield of total flavonoids were studied. The results showed that optimum extracting conditions of total flavonoids from castor leaves were as follows: adding 1:50 g·mL-1 of 40% alcohol and extracting for 3 min,microwave irradiation power 464W. Microwave extraction of total flavonoids from castor leaves is fast, energy saving and high extraction rate.


2017 ◽  
Vol 35 (No. 1) ◽  
pp. 89-94 ◽  
Author(s):  
Yu Qun ◽  
Li Chuan ◽  
Duan Zhenhua ◽  
Liu Bing ◽  
Duan Weiwen ◽  
...  

Polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans were extracted by an ultrasonic microwave-assisted method. The optimal extraction conditions were established in distilled water, solid-liquid ratio 1 : 55 g/ml, irradiation power 90 W, and extraction cycle with 75 seconds. Results revealed that the solid-liquid ratio exerted a significant effect on polyphenols, whereas the irradiation power played a key role in the extraction of flavonoids, triterpenoids, and vitamin C. Under these conditions the extraction yield of each component was: polyphenols 8.893, flavonoids 25 936, triterpenoids 16 789, and vitamin C 0.166 mg/g. These results showed that the ultrasonic microwave-assisted extraction was an efficient technology to extract bioactive substances from Clinacanthus nutans and Clinacanthus nutans could potentially be a source of natural antioxidants.


2016 ◽  
Vol 34 (No. 4) ◽  
pp. 341-349 ◽  
Author(s):  
Q. He ◽  
Y. Li ◽  
P. Zhang ◽  
A. Zhang ◽  
H. Wu

The conditions for microwave-assisted extraction (MAE) of total flavonoids (TF) and total phenols (TP), and antioxidant activity from celery (Apium graveolens L.) leaves by response surface methodology (RSM) were optimised. The 3-level, 3-factorial Box-Behnken design (BBD) was employed to study three main extraction conditions: microwave power (300–500 W), solid-solvent ratio (15–30 ml/g), and ethanol concentration (50–80%). It was found that microwave power of 500 W at 30 ml/g solid-solvent ratio with 75.6% (v/v) ethanol concentration was the most optimum conditions for the extraction of TF and TP from celery leaves with the consequent high antioxidant activity measured by the DPPH inhibition rate. Using the optimum extraction conditions, the extraction yields of TF and TP were 0.62 g RUE/100 g DW, 3.01 g GAE/100 g DW, respectively, and the DPPH inhibition rate was 88%. The results indicated that the nutritional quality of celery (Apium graveolens L.) leaves could be improved significantly by optimising the extraction process of MAE using response surface methodology.


2019 ◽  
Vol 10 ◽  
pp. 76-80
Author(s):  
Duwi Meiliyani ◽  
Sabaniah ◽  
Islamudin Ahmad

This study aims to determine the effect of citric acid-glucose based microwave assited extraction (MAE) method on total polyphenols content from (Peperomia pellucida [L.] Kunth) herbs. Dried samples were extracted using green solvent glucose citric acid with a ratio of 1: 1 g/g, 3: 1 g/g, and 5: 1 g/g, respectively, 30% microwave power for 5 minutes, and 1:5 g /mL solid-liquid ratio. Then the obtained extract solution was performed determination total polyphenols content using Folin-Ciocalteu reagent, and the absorbance was measured using a UV-Vis spectrophotometer at 791 nm. Based on the results, obtained total polyphenols content according to the extraction condition namely 214.405 mg GAE/g sample (3: 1 g /g solvent), 84.833 mg GAE /g sample (1: 1 g /g solvent) and 53,9451 mg GAE/g sample (5: 1 g /g solvent), respectively. This study is a preliminary data about the use of citric acid-glucose based microwave assisted extraction method on total polyphenols content from this plant quickly, easily and efficiently.


2012 ◽  
Vol 2 (2) ◽  
pp. 153-159
Author(s):  
Akhmad Endang Zainal Hasan ◽  
Husain Nashrianto ◽  
Rani Novia Juhaeni

The aim of this study is to determine the levels of yield extract of mangosteen pericarp extracted using Response Surface Methodology (RSM) Central Composite Design (CCD) with various concentrations of ethanol (in the range of 45 to 96 %) and duration of microwave heating (in the range 5.8 to 34.1 o C) or Microwave Assisted Extraction (MAE). The yield extract was calculated as percentage to the weight of origin. The results showed that optimum extraction conditions for yield extract were at ethanol concentration of 70% and heating time of 31.5 minutes which resulted in yield extract of 19.45%. More over, under these conditions resulted yield of 19.83%. The yield extract equation of mangosteen pericarp is Y = -73,7883 + 0,5293 X heating time and X 2 1 + 2,4230 X 2 is ethanol concentration in water as solvent. 0,0084X12 0,00173 X2 2 , where X1 is heating time and X2 is ethanol concentration in water as solvent.Key words : Optimization, Mangosteen, RSM CCD, MAE, yield


2013 ◽  
Vol 395-396 ◽  
pp. 672-677
Author(s):  
Yi Hua Jiang ◽  
Xin Long Jiang

Surface response optimization of microwave-assisted extraction (MAE) conditions of anthocyanins from black soybean hull with the factors of ethanol concentration, microwave power, extraction time, solid/liquid ratio (g:mL) on the yield of anthocyanin were studied. The results showed that ethanol concentration and ratio of liquid to solid had most important influence; the interaction of ethanol concentration and ratio of liquid to solid,interaction of microwave power and extraction time had significant influence on extraction anthocyanins from black soybean hull. The optimum extracting conditions of anthocyanin from black soybean hull were as follows: adding 1:40.00 (m:v) of 60.35% alcohol (pH2.0) and extracting for 74.26 s under the power of 237.86 W.


2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Alexander Weremfo ◽  
Felix Adulley ◽  
Martin Adarkwah-Yiadom

This study was designed to optimize three microwave-assisted extraction (MAE) parameters (ethanol concentration, microwave power, and extraction time) of total phenolics, total flavonoids, and antioxidant activity of avocado seeds using response surface methodology (RSM). The predicted quadratic models were highly significant (p<0.001) for the responses studied. The extraction of total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity was significantly (p<0.05) influenced by both microwave power and extraction time. The optimal conditions for simultaneous extraction of phenolic compounds and antioxidant activity were ethanol concentration of 58.3% (v/v), microwave power of 400 W, and extraction time of 4.8 min. Under these conditions, the experimental results agreed with the predicted values. MAE revealed clear advantages over the conventional solvent extraction (CSE) in terms of high extraction efficiency and antioxidant activity within the shortest extraction time. Furthermore, high-performance liquid chromatography (HPLC) analysis of optimized extract revealed the presence of 10 phenolic compounds, with rutin, catechin, and syringic acid being the dominant compounds. Consequently, this optimized MAE method has demonstrated a potential application for efficient extraction of polyphenolic antioxidants from avocado seeds in the nutraceutical industries.


2014 ◽  
Vol 941-944 ◽  
pp. 1003-1007 ◽  
Author(s):  
Yi Hua Jiang ◽  
Xin Long Jiang ◽  
Cheng Gang Cai

Orthogonal experiment optimization of microwave-assisted extraction (MAE) conditions of total flavonoids from Magnolia liliflora petals with the factors of ethanol concentration, extraction time,microwave power,solid/liquid ratio on the yield of total flavonoids were studied. The results showed that optimum extracting conditions of total flavonoids from Magnolia liliflora were as follows: adding 1:10 g·mL-1 of 40% alcohol and extracting for 5 min,microwave irradiation power 464W, under the optimal conditions, the maximal yield of flavonoids was of 2.08%.


Processes ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 485 ◽  
Author(s):  
Xuan Le ◽  
Manh Nguyen ◽  
Dinh Vu ◽  
Minh Pham ◽  
Quoc Pham ◽  
...  

Docynia indica (D. indica) shows various useful biological activities, such as antioxidant, anti-inflammatory, antibacterial effects, and positive benefits for human health. Such biological activities relate to the main phytochemicals of D. indica including phenolic and flavonoid. However, isolation for phenolic and flavonoid by popular methods such as hot extraction, soxhlet extraction, and ultrasonic extraction have been relatively ineffective. Therefore, in this study, microwave-assisted extraction (MAE) was used for the extraction of total phenolic and total flavonoid from D. indica. The optimization experiments were conducted based on response surface methodology (RMS) according to a central composite design with four independent variables: extraction time (min), ethanol concentration (%, v/v), microwave power (W), and pH of the solvent. Three dependent variables were total phenolic content (TPC), total flavonoid content (TFC), and yield. The optimal conditions for the extraction of phenolic and flavonoid from D. indica were: extraction time of 50 min, ethanol concentration of 65%, microwave power of 440 W, and solvent pH of 5.4. These conditions corresponded to TPC, TFC, and yield values of 33.57 ± 0.12 (mg GAE/g), 25.01 ± 0.11 (mg QE/g) and 33.44 ± 0.14 (%), respectively.


2017 ◽  
Vol 41 (6) ◽  
pp. 701-712 ◽  
Author(s):  
Wilfred Edilberto Espinosa ◽  
Luis Carlos Arturo Garzón ◽  
Oscar Julio Medina

ABSTRACT Due to their nutraceutical properties, the fruits of the species Vaccinium meridionale, which inhabit the Andean region, are of scientific interest. Microwave-assisted extraction has been applied to different vegetal matrices for to extract efficiently polyphenolic compounds. In this work we study in microwave assisted extraction processes, the effect on the extraction of total polyphenols in dried fruits of Vaccinium meridionale, using response surface methodology. The main objective of this research was to analyze the relationships between power, temperature, solid-liquid ratio, time and ethanol concentration in aqueous media on the effectiveness of total polyphenols recovery in dry fruits of Vaccinium meridionale. A central composite design face-centered with three levels for each variable was used: P = 300 - 900 W; T = 70 -110 °C; L:Srat. = 30:1 - 70:1 w/w; t = 5 - 15 min; [EtOH] = 0 - 80%. In this sense, the effect of the input variables on the recovery of total polyphenols, the optimization process for maximum extraction, and the comparison to other solid-liquid extractions in terms of quantity of total polyphenols, are reported. It was found that the significant variables in the extraction process were ethanol concentration, temperature and time; the best yields were obtained in the range [EtOH] = 44 - 49%, T = 110 °C, and t = 10 - 15 min. In terms of quantity, time and consumption of energy, microwave-assisted extraction technique is more efficient than other solid-liquid extraction processes for the extraction of total polyphenols.


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