scholarly journals Ekstraksi Polifenol Total dari Daun Kadamba (Mitragyna Speciosa Korth.) Menggunakan Malic Acid-Glucose Based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 147-150
Author(s):  
Andi Yusniah ◽  
Yuspian Nur ◽  
Islamudin Ahmad
Keyword(s):  
Malic Acid ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Total Polyphenol ◽  
Polyphenol Compounds ◽  
Microwave Assisted ◽  
Mitragyna Speciosa ◽  
Assisted Extraction ◽  
Polyphenol Extraction ◽  
Sample Ratio

This study aims to determine the effect of the use of malic acid-glucose based microwave assited extraction (MAE) methods on total polyphenol extraction from kadamba leaves (Mitragyna Speciosa Korth). Samples that have been dried in the extraction using solvents (green solvent) Malic Acid-Glucose with a ratio of 1: 1 and 1: 3 g/g in several conditions including, microwave strength 50% for 10 minutes with a sample ratio and a solvent of 1:10 g/mL. Then the extract solution obtained was measured in total polyphenol levels using the folin ciocalteu (FC) reagent and the absorbance was measured at a wavelength of 791 nm using a UV-vis spectrophotometer. Based on the results of the study obtained levels of polyphenols from each condition of the solvent used is 258mg GAE/g sample (1:1 g/g solvent) and 292mg GAE /g sample (1: 3 g / g solvent). From this study it can be concluded that the method of malic acid-glucose based microwave assited extraction can be used to extract polyphenol compounds from Kadamba leaves quickly, easily and efficiently.

scholarly journals Ekstraksi Polifenol Total dari Umbi Bawang Dayak (Eleutherine bulbosa [Mill.] Urb.) menggunakan Metode Lactic Acid-Sucrose based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 118-121
Author(s):  
Kurnya Kurnya ◽  
Hajrah Hajrah ◽  
Islamudin Ahmad
Keyword(s):  
Breast Cancer ◽  
Diabetes Mellitus ◽  
Lactic Acid ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Total Polyphenols ◽  
Total Polyphenol ◽  
Polyphenol Compounds ◽  
Microwave Assisted ◽  
Assisted Extraction

Dayak Onion (Eleutherine bulbosa [Mill.] Urb.) It is a plant that grows in Indonesia precisely in the Kalimantan area and has traditionally efficacious in curing various diseases such as diabetes mellitus, hypertension, breast cancer, cholesterol-lowering, and stroke. This study aims to determine the effect of using the lactic acid-sucrose based microwave-assisted extraction (MAE) method to extract total polyphenols from Dayak onion tubers (Eleutherine bulbosa [Mill.] Urb.). Dry samples were extracted using a lactic-sucrose acid (green solvent) solvent in the ratio of 1: 1, 2: 1, and 3: 1  g/g with 50% microwave strength for 10 minutes with a ratio of samples and solvents of 1:10 g /mL. Extracts that have been obtained then determined the total polyphenol levels using a UV-VIS spectrophotometer at a wavelength of 791 nm. Based on the results of the study, it was obtained the levels of polyphenols from each condition of the solvent used in the sample that is 28.73 mg GAE/g sample ( 1: 1 g/g solvent); 20.2 mg GAE/g sample ( 2:1 g/g solvent); 36.35 mg GAE/g sample ( 3:1 g/g solvent). From this study, it can be concluded that the MAE method can be used to extract polyphenol compounds from Dayak bulbs.

scholarly journals Pengaruh Penggunaan Metode Lactic Acid-Sucrose dengan Microwave Assisted Extraction (MAE) terhadap Polifenol Total dari Herba Suruhan (Peperomia pellucida (L.) Kunth)

2019 ◽  
Vol 10 ◽  
pp. 114-117
Author(s):  
Kharisma Ayu Tandi Datu ◽  
Nurul Fitriani ◽  
Islamudin Ahmad
Keyword(s):  
Lactic Acid ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Total Polyphenols ◽  
Total Polyphenol ◽  
Polyphenol Compounds ◽  
Microwave Assisted ◽  
Extract Solution ◽  
Assisted Extraction

This study aim to determine the effect of use lactic acid and sucrose with assistance of Microwave Assisted Extraction (MAE) on Total Polyphenols from Herbs Suruhan (Peperomia pellucida (L.) Kunth). The dried sample of Herbs Suruhan was extracted using (green solvent) lactic acid-sucrose with a ratio of 1:1 g/g, 2:1 g/g and 3:1 g/g and the extraction conditions microwave strength was 50% for 10 minutes at a ratio sample and solvent 1:10 g/ml. Then the extract solution obtained to determine the total polyphenol level using the Folin Ciocalteu reagent and it absorbance was measured using a UV-VIS spectrophotometer at a wavelength of 791 nm. Based on the result of the study, obtained levels of polyphenols from each solvent condition used on the sample were 573,443 mg GAE/g (2:1), 472,479 mg GAE/g (1:1) and 420,14 mg GAE/g (3:1). It can be concluded that the lactic acid-sucrose method with microwave assisted extraction can be used to extract polyphenol compounds from Herbs Suruhan.

scholarly journals Ekstraksi Polifenol Total dari Daun Kadamba (Mitragyna speciosa Korth) Menggunakan Metode Choline Chloride-Sorbitol based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 131-134
Author(s):  
Ramila Hidayati ◽  
Dewi Rahmawati ◽  
Islamudin Ahmad
Keyword(s):  
Choline Chloride ◽  
Solvent Ratio ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Microwave Assisted ◽  
Extract Solution ◽  
Mitragyna Speciosa ◽  
Assisted Extraction ◽  
Total Extraction

This research was conducted to determine the influence of the use of the choline chloride-sorbitol based microwave assisted extraction (MAE) method against the total extraction of polyphenols from the leaf Kadamba (Mitragyna speciosa Korth). Simplisia extracted using solvent (green solvent) choline chloride-sorbitol with a ratio of 1:1; 1:2 and 1:3 g/g with sample and solvent ratio of 1:10 g/mL, microwave strength is 50% watt and performed for 10 minutes, the extract solution has been obtained and then done determination of total levels of polyphenols by using folin ciocalteu reagents and further measured its absorption with the UV-VIS spectrophotometer device at a wavelength of 770 nm. Based on the results of the study, obtained the levels of polyphenols from each comparison of solvent used against the sample of 334 mg of GAE/g samples (1:1 g/g solvent); 372 mg GAE/g samples (1:2 g/g solvents) and 299 mg of GAE/g samples (1:3 g/g solvents). Based on the results of the study can be concluded that the method of choline chloride-sorbitol based microwave assisted extraction (MAE) can be used to extract the polyphenols from Kadamba leaves easily, quickly and efficiently.

scholarly journals Effects of Microwave-Assisted Extraction Conditions on Antioxidant Capacity of Sweet Tea (Lithocarpus polystachyus Rehd.)

Antioxidants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 678
Author(s):  
Ao Shang ◽  
Min Luo ◽  
Ren-You Gan ◽  
Xiao-Yu Xu ◽  
Yu Xia ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Microwave Power ◽  
Ethanol Concentration ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Microwave Assisted Extraction ◽  
Optimal Conditions ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Sample Ratio

In this study, the effects of microwave-assisted extraction conditions on antioxidant capacity of sweet tea (Lithocarpus polystachyus Rehd.) were studied and the antioxidants in the extract were identified. The influences of ethanol concentration, solvent-to-sample ratio, microwave power, extraction temperature and extraction time on Trolox equivalent antioxidant capacity (TEAC) value, ferric reducing antioxidant power (FRAP) value and total phenolic content (TPC) were investigated by single-factor experiments. The response surface methodology (RSM) was used to study the interaction of three parameters which had significant influences on antioxidant capacity including ethanol concentration, solvent-to-sample ratio and extraction time. The optimal conditions for the extraction of antioxidants from sweet tea were found as follows—ethanol concentration of 58.43% (v/v), solvent-to-sample ratio of 35.39:1 mL/g, extraction time of 25.26 min, extraction temperature of 50 ℃ and microwave power of 600 W. The FRAP, TEAC and TPC values of the extract under the optimal conditions were 381.29 ± 4.42 μM Fe(II)/g dry weight (DW), 613.11 ± 9.32 μM Trolox/g DW and 135.94 ± 0.52 mg gallic acid equivalent (GAE)/g DW, respectively. In addition, the major antioxidant components in the extract were detected by high-performance liquid chromatography with diode array detection (HPLC-DAD), including phlorizin, phloretin and trilobatin. The crude extract could be used as food additives or developed into functional food for the prevention and management of oxidative stress-related diseases.

scholarly journals Ekstraksi Polifenol Total dari Herba Suruhan (Peperomia pellucida [L.] KUNTH) Menggunakan Metode Citric Acid-Glucose Based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 76-80
Author(s):  
Duwi Meiliyani ◽  
Sabaniah ◽  
Islamudin Ahmad
Keyword(s):  
Citric Acid ◽  
Extraction Method ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Liquid Ratio ◽  
Extraction Condition ◽  
Total Polyphenols ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Solid Liquid

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.

scholarly journals Ekstraksi Polifenol Total dari Umbi Bawang Dayak (Eleutherine bulbosa [Mill.] Urb.) Menggunakan Metode Citric Acid-Glucose based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 139-142
Author(s):  
Selvy Jumiatul Astati ◽  
Mirhansyah Ardana ◽  
Islamudin Ahmad
Keyword(s):  
Citric Acid ◽  
Environmentally Friendly ◽  
Solvent Ratio ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Microwave Assisted ◽  
Onion Bulbs ◽  
Assisted Extraction ◽  
Total Extraction

The use of environmentally friendly solvent-based expulsion methods today began to be widely used, one of which is a microwave-assisted extraction (MAE) using a citric acid-glucose acid solvent. The study aims to determine the influence of the use of citric acid-glucose based microwave-assisted extraction against the total extraction of polyphenols from Dayak onion bulbs (Eleutherine bulbosa [Mill.] Urb.).The dried samples were extracted using a solvent (green solvent) citric acid – glucose with a ratio of 4:1, 5:1 and 6:1 g/g with the extraction conditions in the form of microwave strength of 50% for 10 minutes with a sample and solvent ratio of 1:10 g/mL, then Extract solution obtained further determination of the total levels of polyphenols using Folin ciocalteu reagents, and its absorption was measured using a UV-vis spectrophotometer at a wavelength of 791 nm. Based on the results of the study, the total amount of polyphenols obtained from each of the solvent conditions used against the samples was 21.92 mgGAE/g samples, 13.86 mgGAE/g samples, and 14.38 mgGAE/g samples. From this study, it can be concluded that the concentration of citric acid in the microwave-based citric acid-glucose method is assisted by extraction according to the ability of the solvent in the competency of polyphenols from Dayak onion bulbs.

scholarly journals Optimization of the Microwave-Assisted Extraction Process of Bioactive Compounds from Annatto Seeds (Bixa orellana L.)

Antioxidants ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 37 ◽  
Author(s):  
Julian Q. Quiroz ◽  
Angélica C. Torres ◽  
Luisa M. Ramirez ◽  
Mariluz S. Garcia ◽  
Gelmy C. Gomez ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Microwave Treatment ◽  
Extraction Process ◽  
Antimicrobial Activities ◽  
Microwave Assisted Extraction ◽  
Solvent Concentration ◽  
Polyphenol Compounds ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Antioxidant And Antimicrobial Activities

This study deals with the extraction, optimization, and evaluation of the antioxidant and antimicrobial activities of bioactive compounds obtained from the seeds of annatto using microwave-assisted extraction as compared to leaching. Annatto seeds were subjected to a microwave treatment of 2450 MHz and power of 700 watts using a response surface design involving four factors: pH (4–11), solvent concentration (ethanol) (50–96 %), solvent-to-seed ratio (2–10), and microwave exposure time (0–5 min). The contents of polyphenol compounds and bixin were taken as response variables. Subsequently, the antioxidant and antimicrobial activities were assessed at the optimal processing conditions predicted by the experimental design. Microwaves, solvent concentration, and the solvent-to-seed ratio showed a statistically significant effect for the extraction of polyphenol compounds and bixin. Thus, microwaves accelerated the extraction of those compounds and the slight increase in temperature caused some degradation of the polyphenol compounds. The microwave-assisted extraction increased the contents of polyphenols and bixin along with their antioxidant activity as compared to leaching extraction. However, this technique does not significantly improve the antimicrobial activity against Bacillus cereus and Staphylococcus aureus.

Determination of metabolites in Uncaria sinensis by HPLC and GC–MS after green solvent microwave-assisted extraction

Talanta ◽  
2011 ◽  
Vol 83 (3) ◽  
pp. 891-898 ◽  
Author(s):  
Swee Ngin Tan ◽  
Jean Wan Hong Yong ◽  
Chin Chye Teo ◽  
Liya Ge ◽  
Yee Wen Chan ◽  
...  
Keyword(s):  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Microwave Assisted ◽  
Assisted Extraction
Sign in / Sign up

Export Citation Format

Share Document