scholarly journals EKSTRAKSI KUERSETIN DARI KULIT TERONG BELANDA (Solanum betaceum Cav.) MENGGUNAKAN PELARUT ETANOL DENGAN METODE MASERASI DAN SOKLETASI

2017 ◽  
Vol 6 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Siswarni MZ ◽  
Yusrina Ika Putri ◽  
Rizka Rinda P
Keyword(s):  
Antioxidant Activity ◽  
Extraction Process ◽  
Extraction Time ◽  
High Yield ◽  
Aromatic Rings ◽  
Solvent Concentration ◽  
Independent Variables ◽  
Yield Value ◽  
Materials Used ◽  
Solanum Betaceum

The tamarillo peels (Solanum betaceum Cav.) contain flavonoid compounds, quercetin that can serve as antioxidant. This research aims to determine the best condition of operation in tamarillo peels extraction process to obtain the high yield value, and to prove the presence of antioxidant activity quantitatively. The materials used this research are tamarillo peels and ethanol. The independent variables in this research were the concentration of etanol which were 60%, 70%, 80% and 90% for maceration, and 70%, 80%, 90%, 99% for soxhletation. The extraction time are 3 days, 4 days, and 5 days for maceration and 3 hours, 4 hours, 5 hours for soxhletation. Extraction is done by maceration and soxhletation. The results of the qualitative analysis using FTIR represent the presence of functional groups such as keton, arylether, hydroxyl and aromatic rings which indicates quercetin compound’s presence. In quantitative analysis used Spectrofotometry UV-Vis, with the variation of 99% solvent concentration  and 5 hours of extraction time for soxhletation, the highest yield value obtained 0,0877 mg/g. The variation of 80% solvent concentration and 5 days of extraction time for maceration, the highest yield value obtained 0,0705 mg/g

scholarly journals EKSTRAKSI ACETOGENIN DARI DAUN DAN BIJI SIRSAK (Annona muricata L) DENGAN PELARUT ASETON

2016 ◽  
Vol 5 (2) ◽  
pp. 38-42
Author(s):  
Siswarni MZ ◽  
Nurhayani ◽  
Suci Damayanti Sinaga
Keyword(s):  
Extraction Time ◽  
High Yield ◽  
Second Step ◽  
Extraction Temperature ◽  
Annona Muricata ◽  
Ftir Analysis ◽  
Distillation Process ◽  
Yield Value ◽  
Seed Extraction ◽  
Materials Used

Annona muricata L contain bioactive compounds acetogenins. Acetogenins which was synthesized through reaction between polyketide derived-acetic acid with 35-39 carbon atom in fatty acid, is the secondary metabolite of Annonaceae plant. This research aims to determine the variable that influence in leaf and Annona muricata seed extraction so that high yield value can be obtained and to prove the presence of acetogenins compound qualitatively. The materials used are Annona muricata leaves, Annona muricata seeds and aceton. The changing variables in this research is the mass of the samples for Annona muricata leaves powder that are 15 g, 25 g, 35 g and Annona muricata seeds powder that are 10 g, 20 g, 30 g which the extraction time are 30 minutes, 40 minutes, 50 minutes and 60 minutes. This research divided into two steps. The first step is the extraction of Annona muricata leaves and Annona muricata seeds using soxhletation method with 250 mL acetone for Annona muricata leaves, 200 mL aceton for Annona muricata seeds and extraction temperature is ± 58 oC. The second step is purification of the extract using distillation process. In this research, the highest yield value extract of Annona muricata leaves obtained is 55,33% with 15g mass of sample and 60 minutes for the extraction time. The highest yield value extract of Annona muricata seeds obtained is 62 % with 10 g mass of sample and 40 minutes for the extraction time. FTIR analysis showed the presence of functional groups such as lactone, THF, hyrdroxyl and aliphatic chains which indicates acetogenins compound’s presence.

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 Antioxidant Activity of Extract from Ultrasonic-Assisted Extraction of Durian Peels

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Bambang Kunarto ◽  
Ely Yuniarti Sani
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolics ◽  
Extraction Process ◽  
Extraction Time ◽  
Total Flavonoids ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Total Flavonoids Content ◽  
Phenolics Content ◽  
Ultrasonic Assisted Extraction

The increase in durian production results in the accumulation of durian peel waste. The bioactive component of durian peel has the potential to be used as an antioxidant. Thus, there is a need to carry out an extraction process to obtain  bioactive compounds from durian peel. However, conventional extraction methods cause damage to phenolic compounds due to oxidation, hydrolysis and ionization reactions during the extraction process. Therefore, durian peel extraction was carried out using ultrasonic assisted extraction method (UAE) in this study. The purpose of this study was to investigate the effect of varying ratios of durian peel to ethanol solvents and extraction time on the yield, total phenolics content, total flavonoids content and antioxidant activity. The results of the research data were analyzed using a two-factor completely randomized design, which included variations of the ratio of durian peel to ethanol solvents and extraction time The Duncan’s New Multiple Range Test (DNMRT) was carried out as a follow up test to determine the differences in each treatment at a significance level of 0.05. The results showed that the best treatment for peel extraction using ultrasonic assisted extraction was a 1: 9 ratio of durian peel to ethanol at an extraction time of 20 minutes. The extraction of durian peel under this condition gave the highest yield of 12.77 ± 0.16%, antioxidant activity (IC50) of 38.33 ± 0.12 ppm, total phenolic content of 63.30 ± 0.08 mgGAE / g and total flavonoids content of 47.53 ± 0.48 mgQE / g. In addition, total phenolics content and total flavonoid content showed a strong correlation to the antioxidant activity of durian peel extract.

Optimization of Hydrodistillation of Rosemary Essential Oil

2020 ◽  
Vol 9 (3) ◽  
pp. 51-61
Author(s):  
Ouassila Larkeche ◽  
Ahmed Zermane ◽  
Abdeslam-Hassen Meniai ◽  
Souad Boubaira ◽  
Hayat Kouis ◽  
...  
Keyword(s):  
Essential Oil ◽  
Plant Material ◽  
Extraction Process ◽  
Extraction Time ◽  
Operating Parameters ◽  
Distillation Process ◽  
Yield Value ◽  
Water Plant ◽  
Carbon Dioxide Extraction ◽  
Oil Components

Extraction of essential oil from Algerian rosemary leaves is carried out by means of a hydro-distillation process. The important operating parameters such as extraction time, condensation flow rate and water/solid plant material ratio, have been investigated. The highest yield value was 1.92% and was obtained for a water/plant ratio, a condensate flowrate, and extraction time of 20, 4.51ml/min and 120 min, respectively. The essential oil components have been identified using the GCMS analysis which show camphor as the major ingredient, followed by camphene, α-pinene and 1,8-cineole. The results have been compared with those obtained using a supercritical carbon dioxide extraction process, which has shown to be more much better quantitatively and qualitatively.

scholarly journals Valorization of Yarrow (Achillea millefolium L.) By-Product through Application of Subcritical Water Extraction

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1878
Author(s):  
Jelena Vladić ◽  
Martina Jakovljević ◽  
Maja Molnar ◽  
Senka Vidović ◽  
Milan Tomić ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
High Performance ◽  
Subcritical Water ◽  
Extraction Process ◽  
High Performance Liquid Chromatographic ◽  
Extraction Time ◽  
Achillea Millefolium ◽  
Subcritical Water Extraction ◽  
By Products

In the present study, valorization of yarrow (Achillea millefolium) by-product from the filter tea industry was investigated through the application of subcritical water for the extraction of bioactive compounds. The influence of different process parameters (temperature 120–200 °C, extraction time 10–30 min, and HCl concentration in extraction solvent 0–1.5%) on extract quality in terms of content of bioactive compounds and antioxidant activity was investigated. Optimal conditions of the extraction process (temperature 198 °C, extraction time 16.5 min, and without acidifer) were determined and, when applied, the most efficient exploitation of by-products is achieved, that is, attainment of extracts rich in total phenols and flavonoids and high antioxidant activity. In addition, by applying the high performance liquid chromatographic analysis, the content of chlorogenic acid was determined as well as the hydroxymethylfurfural content in obtained extracts. The results demonstrated that subcritical water can be successfully used for utilization of yarrow by-products for obtaining extracts rich in antioxidants.

scholarly journals Optimization of Malted Sorghum Protein Extraction by Response Surface Methodology

2013 ◽  
Vol 6 ◽  
pp. 53-58
Author(s):  
Irakoze Pierre Claver ◽  
Sindayigaya Ernest
Keyword(s):  
Protein Extraction ◽  
Extraction Process ◽  
Protein Yield ◽  
Extraction Time ◽  
Coefficient Of Determination ◽  
Ultrasonic Power ◽  
Order Model ◽  
Independent Variables ◽  
Sorghum Flour

Four independent variables viz. ultrasonic power, pH, extraction time and solvent/meal ratio were selected. The extraction process was evaluated by a selected response like protein yield and the second-order model obtained revealed 96.7% of coefficient of determination. Selected response, which evaluated the extraction process, was protein yield and the secondorder model obtained for protein yield revealed a coefficient of determination of 96.7%. The optimal extraction conditions for protein were determined as follows; Ultrasonic power, pH, extraction time and solvent/meal ratio were 400W, 8.0, 40min, and 20:1 (v/w) respectively. Protein yield was primarily affected by Ultrasonic power, pH and solvent/meal ratio. These conditions resulted in protein yield of 5.43g of soluble protein from extract/100 g malted sorghum flour, which was agreed closely with the predicted value 5.36%. The adequacy of the model was confirmed by extracting the protein under optimum values using the model. These results may help in designing the process of optimal protein extraction from malted sorghum flour. J. Food Sci. Technol. Nepal, Vol. 6 (53-58), 2010 DOI: http://dx.doi.org/10.3126/jfstn.v6i0.8260

Optimization of Ultrasonic Assisted Extraction Process on Antioxidant Activity of Honje Fruit Extract (Etlingera elatior) Using Surface Response Method

2021 ◽  
Vol 7 (2) ◽  
pp. 118-128
Author(s):  
Artta Gracia Malau ◽  
Asri Widyasanti ◽  
Selly Harnesa Putri
Keyword(s):  
Antioxidant Activity ◽  
Total Yield ◽  
Extraction Process ◽  
Extraction Time ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Surface Response Method ◽  
Response Method ◽  
Etlingera Elatior

Honje fruit (Etlingera elatior) contains bioactive compounds as antioxidants. An antioxidant can be obtained by extraction. This research aimed to determine the best combination of solvent amount and extraction time to produce the optimal yield and antioxidant activity. The extraction method was UAE (Ultrasound Assisted Extraction) using ethanol 96% solvent amount 125 mL to 250 mL and time level of 30 to 60 minutes. The RSM (Response Surface Methodology) in the Design Expert 11 application was used to arrange the extraction combination treatment, which resulted in 13 runs. Parameters analyzed were total yield, antioxidant activity, pH, specific gravity, and color. The results showed that total yield was revealed quadratic, Y1 = 19.05 – 1.76A + 0.32B – 0.002AB + 0.023A2 – 0.0005B2 and the antioxidant activity was revealed linear, Y2 = 408.147 – 6.424A + 0.326B. The optimum treatment was achieved in the amount of solvent 174.815 ml and extraction time of 60 minutes resulted in a total yield of 17.125% and antioxidant activity of 77.55 ppm that could be classified as strong.

Characteristics of “Base Genep” Extracts on Treatment Temperature and Extraction Time

2020 ◽  
Vol 7 (1) ◽  
pp. 10
Author(s):  
Ni Luh Putu Ravi Cakswindryandani ◽  
Luh Putu Wrasiati ◽  
Lutfi Suhendra
Keyword(s):  
Shelf Life ◽  
Extraction Process ◽  
Temperature Treatment ◽  
Treatment Temperature ◽  
Total Phenol ◽  
Extraction Time ◽  
Effect Of Temperature ◽  
Optimal Conditions ◽  
Yield Value ◽  
Phenol Extract

“Base Genep” is a Balinese spice that is usually served for all Balinese dishes and is usually served in a wet form. “Base Genep” or “Genep” seasoning must be used until finished because it is made from fresh ingredients that has a short shelf life. “Base Genep” is composed of turmeric, ginger, kencur, galangal, onion, garlic, pepper, coriander, candlenut, nutmeg, chili, shrimp paste, and salt. The content of bioactive compounds derived from the ingredients used makes “base genep” susceptible to oxidation processes that result in decreased quality and shelf life of base genep. This must be prevented by applying technologies such as extraction to increase the weakness of seasonings in the wet form. This study aims to know the effect of temperature and extraction time and determine the best treatment produce “base genep” extract. Extraction process using maceration method with ethanol solvent with temperature treatment and extraction time consisting of a temperature of 30ºC, 40ºC, 50ºC, 60ºC and time for 2, 3, and 4 hours. The results showed that the temperature and extraction time affected the characteristics of “base genep”. The higher the temperature and extraction time until the optimal conditions can increase yield, antioxidant activity, and total phenol extract “genep” seasoning. The results of the research showed a temperature of 50ºC for 4 hours was able to produce the characteristics of the best “genep” seasoning extract with a yield value of 25.392%, IC50 of 280.675 ppm, and a total phenol of 1177.97 mg/100 g.

scholarly journals Optimization of Extraction Parameters for Antioxidant and Total Phenolic Content of Ficus carica L. Latex from White Genoa Cultivar

2019 ◽  
Vol 31 (8) ◽  
pp. 1859-1865 ◽  
Author(s):  
M. Shahinuzzaman ◽  
Zahira Yaakob ◽  
Norrakiah Abdullah Sani ◽  
Parul Akhtar ◽  
Md. Zahidul Islam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Signal To Noise Ratio ◽  
Extraction Time ◽  
Ficus Carica ◽  
Effect Of Temperature ◽  
Total Phenolic ◽  
Solvent Concentration ◽  
Extraction Parameters

In this study, the extraction parameters for antioxidant activity and total phenolic content of Ficus carica L. latex from White Genoa cultivar were optimized using response surface methodology (RSM). Effect of temperature, extraction time and solvent concentration for maceration extraction were investigated. The antioxidant activity was determined with DPPH (1,1-diphenyl-2-picrylhydrazyl) assay and expressed as percent of inhibition. Total phenolic content (TPC) was determined with Folin-Ciocalteu assay and expressed as μg GAE/mL. The optimum points that maximize the DPPH inhibition are 32 °C temperature, 31.50 min extraction time and 65 % ethanol. The optimum points for TPC are 32 °C temperature, 37.50 min extraction time and 70 % ethanol. The predicted DPPH inhibition and TPC at these predicted points are 67.08 % and 313.811 μg GAE/mL respectively. In this model, the F value (26.03 and 20.96), R-Squared value (0.9591 and 0.9497) and signal to noise ratio (13.431 and 12.799) are reasonable to fit the model.

Extraction and Determination of Antioxidant Activity of Vietnamese Butterfly Pea (Clitoria ternatia L.)

2020 ◽  
Vol 977 ◽  
pp. 207-211
Author(s):  
Quoc Duy Nguyen ◽  
Thi My Hao Nguyen ◽  
Tri Duc Lam ◽  
Tri Nhut Pham ◽  
Tran Trung Thanh
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Extraction Process ◽  
Extraction Time ◽  
Time Range ◽  
Solvent Ratio ◽  
Antioxidant Power ◽  
Factors Affecting ◽  
Butterfly Pea

The objective of this study was to determine the optimal value of factors affecting the antioxidant activity extraction of antioxidant activity of butterfly pea flowers. The investigated factors included extraction temperatures (30, 40, 50, 60, 70 and 80°C), extraction time (30, 60, 90, 120 and 150 minutes) and solid to solvent ratio (1:05, 1:10, 1:20, 1:40 and 1:50 g/mL). The efficiency of extraction was evaluated based on antioxidant activities which were measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging assay and ferric reducing antioxidant power assay (FRAP). The results showed that when the extraction process was performed at temperatures of 60°C, the resulting extracts with highest DPPH antioxidant activity (575.10 μmolTE/L) and FRAP (1093.83 μmolTE/L) was obtained. Considering the effect of extraction time on antioxidant activities of butterfly pea, time range of 30–90 minutes led to highest DPPH values while extracts with highest FRAP power were collected after 120 minutes. Moreover, decreasing solid-to-solvent ratio resulted in the decline in antioxidant activities.

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