scholarly journals Pengaruh Amplitudo Ultrasonik dan Waktu Ekstraksi Terhadap Rendemen dan Mutu Oleoresin Pala

2021 ◽  
Vol 8 (2) ◽  
pp. 45-52
Author(s):  
I Wayan Budiastra ◽  
Sutrisno Suro Mardjan ◽  
Ahmuhardi Abdul Azis
Keyword(s):  
Extraction Process ◽  
Extraction Time ◽  
Solvent Ratio ◽  
Yield And Quality ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Long Time ◽  
Four Levels ◽  
Derivative Products

Nutmeg oleoresin is one of the nutmeg derivative products with high values produced from the extraction process. The conventional extraction process using maceration takes a long time so that it is less suitable for industries needs. This study aims to examine the UAE direct sonication method for increasing yield and quality of nutmeg eleoresin. Nutmeg with optimal maturity level were harvested, dried and milled into 60 mesh particle size. Nutmeg powder of 200 g was placed in beaker glass filled with etanol 800 ml (material and solvent ratio 1:4) and UAE was carried out using a sonicator with a frequency of 20 kHz and power of 700 W. Four ultrasound amplitude levels (45, 60, 75, 90%) and four levels of extraction time (30, 45, 60, 75 minutes) were taken as UAE treatments. Extraction using maceration at room temperature for 7 hours was done as control.  The results showed that the greater the amplitude of the ultrasound, the higher the yield of nutmeg oleoresin. The longer the extraction time, the higher the yield of nutmeg oleoresin. Ultrasonic assisted extraction can increase nutmeg oleoresin yield by 11 to 52% and faster time (<= 1,25 hour) than maceration extraction method (7 hours).

scholarly journals The Effect of NADES Ratio Solvent and Sonication Time in Extraction of Papaya Sap for Bio-insecticide Production

2018 ◽  
Vol 67 ◽  
pp. 03024
Author(s):  
M F Zikri ◽  
A Tibrizi ◽  
Y Marsino ◽  
T S Utami ◽  
R Arbianti ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Protein Concentration ◽  
Carica Papaya ◽  
Extraction Time ◽  
Solvent Ratio ◽  
Sonication Time ◽  
Lowry Method ◽  
Ultrasonic Assisted ◽  
Tyrosine Concentration

Along with the increasing quantity of agriculture in Indonesia, should be followed by improving the quality of agriculture. Generally one of the indicators or parameters commonly used to indicate the quality of agriculture is the number of pests that damage plants in certain areas. The control of disturbing organisms on the plant can be minimized by the bio-insecticide production of Carica papaya which is tapped and extracted with ultrasonic-assisted using a mixed NADES solvent from Cholin chloride (ChCl) and Oxalic acid (Ox) with varying sonification time for 10, 20, 30 minutes and solvent ratio of 1: 2 and 2: 1. Bio-insecticide was produced by conducting qualitative enzyme activity of with lowry method and quantitatively using UV / Vis spectrophotometer aid with 750 nm wavelength and efficacy test. The best extraction result was obtained at NADES solvent with 1: 2 ratio with extraction time for 30 min with extraction time for 30 minutes yielding protein concentration equal to 7,23 ppm and tyrosine concentration equal to 7,9 ppm. Bio-insecticide samples effectively kill grayak caterpillars with 100% mortality within 5-7 days.

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.

scholarly journals Effects of microwave and ultrasound on the extraction of pectin and its chemical characterisation of banana (Musa sapientum L.) peels

Food Research ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 2030-2036
Author(s):  
A. Phaiphan ◽  
S. Churat ◽  
T. Dougta ◽  
P. Wichalin ◽  
W. Khanchai ◽  
...  
Keyword(s):  
Microwave Power ◽  
Extraction Time ◽  
High Yield ◽  
Chemical Characteristics ◽  
Ultrasound Assisted Extraction ◽  
Degree Of Esterification ◽  
Yield And Quality ◽  
Assisted Extraction ◽  
High Level

Pectin is a polysaccharide that is widely used as a food additive in food industries. Banana peels that are discarded by vendors after processing bananas for food products contain a high level of pectin. The pectin can be extracted from the plant cell walls whereas the conventional method for extraction would normally take some time to get a high yield. This research was conducted to explore the effects of microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE) on the extraction of pectin and its chemical characteristics found in banana peels. For MAE, the effects of microwave power and extraction time on the yield and quality of extracted pectin was studied. It was found that the pectin yield and chemical characteristics increased with the increase of microwave power and extraction time. The percentage yield ranged from 20.93% to 22.91% for microwave power of 300 W for 5-15 mins. The moisture, ash, degree of esterification, methoxyl, and galacturonic content of extracted pectin by MAE had 8.98%, 5.40%, 75.50%, 12.00%, and 57.80%, respectively. For UAE, the effects of temperature and sonication time on the pectin yield and quality of the extracted pectin were also studied. The pectin yields ranged from 1.81% to 3.49% and the moisture, ash, degree of esterification, methoxyl, and galacturonic content of extracted pectin by UAE had 8.00%, 3.39%, 88.83%, 14.50%, and 90.07%, respectively. Although the use of MAE promoted a high pectin yield it had a lower purity level when compared to UAE. Besides, the chemical characteristics of the extracted pectin by UAE is more comparable with commercial citrus pectin than the pectin extracted by MAE.

scholarly journals Optimization of Extraction Conditions of Bioactive Compounds by Ultrasonic-Assisted Extraction from Artichoke Wastes

2021 ◽  
Vol 68 (3) ◽  
pp. 658-666
Author(s):  
Izzet Turker ◽  
Hilal Isleroglu
Keyword(s):  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Extraction Process ◽  
Extraction Yield ◽  
Extraction Time ◽  
Total Phenolic ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Extraction Processes ◽  
Ultrasonic Assisted Extraction

In this study, bioactive compounds were extracted by ultrasonic-assisted extraction and classical extraction processes using distilled water as solvent from artichoke leaves which are considered as agricultural wastes. Antioxidant capacity, total phenolic and total flavonoid content values of the obtained bioactive extracts were determined, and extraction yields and times were evaluated to compare the extraction processes. Also, the optimum extraction conditions of ultrasonic-assisted extraction (extraction time and ultrasonic power) which provide the highest extraction yield were determined using D-optimal design by ‘desirability’ function approach. According to the results, bioactive extracts having high antioxidant capacity were obtained at shorter times and higher extraction yields were achieved by ultrasonic-assisted extraction process than classical extraction. The highest extraction yield was estimated as 98.46% with an application of 20.05 minutes of extraction time and 65.02% of ultrasonic amplitude for the ultrasonic-assisted extraction process.

scholarly journals Optimization and Isolation of 4,8,12,16-Tetramethylheptadecan-4-olide from Deinbollia pinnata

2019 ◽  
Vol 31 (11) ◽  
pp. 2503-2511
Author(s):  
Y. Rufai ◽  
N. Basar ◽  
A. Sani
Keyword(s):  
2D Nmr ◽  
Bulk Sample ◽  
Extraction Process ◽  
High Yield ◽  
Solvent Ratio ◽  
Isolation And Purification ◽  
Assisted Extraction ◽  
Sample Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

Manual agitation on ultrasonic assisted extraction process, fractionation, isolation and purification afforded 4,8,12,16-tetramethylheptadecan-4-olide (1) along with 11 compounds 2-12 i.e., squalene (2), phytyl palmitate (3), lupeol (4), taraxasterol (5), myristic acid (6), palmitic acid (7), campesterol (8), stigmasterol (9), λ-sitosterol (10), stigmastan-3, 5-diene (11) and stigmasta-5,22-diene-3-ol acetate (12). Their structures were elucidated spectroscopically (2D NMR, IR, GC-MS and 1D NMR). The optimal conditions for high yield of extracts were obtained at 45 °C, after 35 min and solvent ratio 50:50 mL for 83.01 % yield; which was applied on agita-sonication process for bulk sample extraction of D. pinnata leaves with single solvent at a time. Thus, this work provides alternative method to overcome large sample extraction for phyto-constituents of isolation of 4,8,12,16-tetramethylheptadecan-4-olide (1) with ten other compounds from this specie pinnata and genius Deinbollia except stigmasterol (9).

scholarly journals STUDY OF PREPARATION METHOD IN ANTIOXIDANTS ANALYSIS FROM KELOR SEEDS (Moringa oleifera L.) TOFU COAGULATION

2017 ◽  
Vol 1 (2) ◽  
pp. 73
Author(s):  
Selly Harnesa Putri ◽  
Farah Nuranjani ◽  
Irfan Ardiansah
Keyword(s):  
Free Radical ◽  
Extraction Process ◽  
High Yield ◽  
Solvent Ratio ◽  
Natural Coagulant ◽  
Assisted Extraction ◽  
Dpph Method ◽  
Ultrasonic Assisted ◽  
The Impact ◽  
Yield And Purity

Currently, Indonesia is exporter of the moringa seed. Moringa seed is a plant which is contain a vegetable oil with many benefits, especially for health. In addition to the utilization of moringa seeds used as vegetable oils, the seeds of this moringa as a natural coagulant, supported by its antioxidant is suitable combined in its use as a natural coagulant on tofu. The analytical method used in the antioxidant content testing using DPPH method is an easy, fast and sensitive method using DPPH free radical (1,1-diphenyl-2-picrilhidrazil). In antioxidant analysis required materials of extract, which high yield and purity consisting of extraction method of multilevel maceration extraction with 3 solvents (n-hexane, 70% of acetone and 96% of ethanol) 1: 3 solvent and solvent ratio and Ultrasonic Assisted Extraction (UAE). The result of the research showed that the extraction process using multilevel maceration extraction with high yield and purity. Determination of extract concentration for IC50 calculation measured by using a spectrophotometer so that the percentage of inhibition is 722,01 which concentration needed to 50 % can inhibit free radical in antioxidants analysis. The impact of research results is utilized optimally on extract moringa seeds with many benefits especially for health.   

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.

scholarly journals Resource Recovery from Waste Coffee Grounds Using Ultrasonic-Assisted Technology for Bioenergy Production

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1770 ◽  
Author(s):  
M. Mofijur ◽  
F. Kusumo ◽  
I. M. Rizwanul Fattah ◽  
H. M. Mahmudul ◽  
M. G. Rasul ◽  
...  
Keyword(s):  
Edible Oils ◽  
Infrared Absorption Spectrum ◽  
Extraction Process ◽  
Oil Extraction ◽  
Extraction Time ◽  
Solvent Ratio ◽  
Waste Products ◽  
Coffee Grounds ◽  
Ultrasonic Assisted ◽  
Coffee Oil

Biodiesel is a proven alternative fuel that can serve as a substitute for petroleum diesel due to its renewability, non-toxicity, sulphur-free nature and superior lubricity. Waste-based non-edible oils are studied as potential biodiesel feedstocks owing to the focus on the valorisation of waste products. Instead of being treated as municipal waste, waste coffee grounds (WCG) can be utilised for oil extraction, thereby recovering an energy source in the form of biodiesel. This study evaluates oil extraction from WCG using ultrasonic and Soxhlet techniques, followed by biodiesel conversion using an ultrasonic-assisted transesterification process. It was found that n-hexane was the most effective solvent for the oil extraction process and ultrasonic-assisted technology offers a 13.5% higher yield compared to the conventional Soxhlet extraction process. Solid-to-solvent ratio and extraction time of the oil extraction process from the dried waste coffee grounds (DWCG) after the brewing process was optimised using the response surface methodology (RSM). The results showed that predicted yield of 17.75 wt. % of coffee oil can be obtained using 1:30 w/v of the mass ratio of DWCG-ton-hexane and 34 min of extraction time when 32% amplitude was used. The model was verified by the experiment where 17.23 wt. % yield of coffee oil was achieved when the extraction process was carried out under optimal conditions. The infrared absorption spectrum analysis of WCG oil determined suitable functional groups for biodiesel conversion which was further treated using an ultrasonic-assisted transesterification process to successfully convert to biodiesel.

scholarly journals EXTRACTION OF PHENOLIC COMPOUNDS FROM PETAI LEAVES (PARKIA SPECIOSA HASSK.) USING MICROWAVE AND ULTRASOUND ASSISTED METHODS

2017 ◽  
Vol 6 (1) ◽  
pp. 25-31 ◽  
Author(s):  
Buanasari Buanasari ◽  
Willy Tirza Eden ◽  
Ayu Ina Sholichah
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Natural Antioxidants ◽  
The Body ◽  
Extraction Time ◽  
Total Phenolic ◽  
Solvent Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ic50 Values

The antioxidant has an activity to neutralize free radical compound that the body needs to avoid damage cells and tissues. Phenolic is one of the compounds that have an antioxidant activity. The influences of ultrasonic-assisted extraction (UAE) and microwave-assisted extraction (MAE) conditions on phenolic compounds of Parkia speciosa Hassk. leaves were investigated. The effects of temperature (40C, 50C, 60C and 70C), time (10, 30 and 50 minutes) and material-solvent ratio (1:10, 1:13, 1:15 ) were evaluated based on the yield, total phenolic content (TPC) and antioxidant activity. The result showed that the highest yield (15.82%) was obtained at 1:15 (w/w) of material-solvent ratio, 50C of temperature and 50 minutes of extraction time for MAE. The highest yield of UAE is 15.53% that sample was obtained at 1:13 (w/w) of material-solvent ratio, 60C of optimal temperature and 30 minutes extraction time. The highest IC50 of UAE method extract was 52.55 ppm, while the extract obtained using MAE method was 50.44 ppm. UAE is more stable at higher temperatures. Time and solvent which was used more efficient than MAE. Extract of petai leaves (Parkia speciosa Hassk.) were very potential to be used as a source of natural antioxidants because they have IC50 values from 41.39 to 66.00 ppm. Its antioxidants capacity is ranged from strong to very strong capacity.

Sign in / Sign up

Export Citation Format

Share Document