Optimization of Antioxidant Extraction from Freeze-dried Pulp, Peel, and Seed of Burmese grape (Baccaurea ramiflora Lour.) by Response Surface Methodology

Author(s):  
Mohammad Afzal Hossain ◽  
Md. Sakib Hossain

Abstract This study aimed to attain the optimum condition necessary for extracting the maximum yield of antioxidants from the freeze-dried pulp, peel, and seed of Burmese grape using response surface methodology (RSM). Solvent (ethanol) concentration (%), temperature (°C), and time (min) were taken as independent variables by factorial screening for the extraction procedure. After extraction, the antioxidant activity of all samples was determined employing 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, total phenolic compounds (TPC), and ferric reducing antioxidant power (FRAP) assay. The experiment's optimum conditions were 80% solvent concentration, 69.01°C temperature, and 30 min for pulp. The optimum extraction conditions were found at 80°C for 29.39 min incubation time using 52.12% concentrated solvent for seed. For peel, the solvent concentration of 41.62% was found optimum when the temperature of 50°C and 30 min incubation time were used. The actual values of TPC, FRAP, and DPPH for freeze-dried pulp, peel and seed extracts were close to the predicted values, which confirms the models’ validity. The Analysis of Variance (ANOVA) showed that the models were significant for TPC, DPPH, and FRAP values of peel, pulp, and seed at different levels (p < 0.001 to p < 0.05). The composite desirability of pulp, seed, and peel were 0.94, 0.98, and 0.85, respectively, which suggest that the developed model could be effectively used for antioxidants’ extraction from freeze-dried pulp, peel, and seed of Burmese grape.

Marine Drugs ◽  
2018 ◽  
Vol 16 (8) ◽  
pp. 257 ◽  
Author(s):  
Marco Garcia-Vaquero ◽  
Gaurav Rajauria ◽  
Brijesh Tiwari ◽  
Torres Sweeney ◽  
John O’Doherty

The objectives of this study were to employ response surface methodology (RSM) to investigate and optimize the effect of ultrasound-assisted extraction (UAE) variables, temperature, time and amplitude on the yields of polysaccharides (fucose and total glucans) and antioxidant activities (ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-2-picryl-hydrazyl radical scavenging activity (DPPH)) from Laminaria digitata, and to explore the suitability of applying the optimum UAE conditions for L. digitata to other brown macroalgae (L. hyperborea and Ascophyllum nodosum). The RSM with three-factor, four-level Box-Behnken Design (BBD) was used to study and optimize the extraction variables. A second order polynomial model fitted well to the experimental data with R2 values of 0.79, 0.66, 0.64, 0.73 for fucose, total glucans, FRAP and DPPH, respectively. The UAE parameters studied had a significant influence on the levels of fucose, FRAP and DPPH. The optimised UAE conditions (temperature = 76 °C, time = 10 min and amplitude = 100%) achieved yields of fucose (1060.7 ± 70.6 mg/100 g dried seaweed (ds)), total glucans (968.6 ± 13.3 mg/100 g ds), FRAP (8.7 ± 0.5 µM trolox/mg freeze-dried extract (fde)) and DPPH (11.0 ± 0.2%) in L. digitata. Polysaccharide rich extracts were also attained from L. hyperborea and A. nodosum with variable results when utilizing the optimum UAE conditions for L. digitata.


2020 ◽  
Vol 12 (3) ◽  
pp. 397-409
Author(s):  
M. A. Hossain ◽  
M. S. S. Evan ◽  
M. S. Moazzem ◽  
M. Roy ◽  
W. Zzaman

The maximum yield of antioxidant activity of freeze-dried jackfruit seeds and pulps was optimized in experimental conditions using response surface methodology. Temperature (°C), time (min) and solvent types (mL) were selected as three independent variables. DPPH (2,2-diphenyl-1-picrylhydrazyl radical), TPC (total phenolic content) and FRAP (ferric reducing antioxidant power) were considered for the antioxidant activity. DPPH, TPC and FRAP values of seed ranged from 45-67.90 %, 2.27-5.42 mg GAE/100 g DM and 63.30-156.39 mg AAE/100 g DM, respectively while those of pulp were 49-72.14 %, 2.109-5.02 mg GAE/100 g DM and 54.90-298.00 mg AAE/100 g DM respectively. The response surface optimization revealed that the optimum conditions for maximum antioxidant activity in seeds were at 65 °C, 10 min and acetone as solvent with 8.76 % DPPH, 2.81 mg GAE/100 g DMTPC, 149.99 mg AAE/100 g DM FRAP and 0.99 desirability whereas that of pulp were at 50°C, 10 min and acetone as solvent with 45.42 % DPPH, 3.06 mg GAE/100 g DMTPC, 129.05 mg AAE/100 g DM FRAP and 0.99 desirability. Extraction of antioxidants from jackfruit seed and pulp can be performed more efficiently up to the maximum yield by maintaining the optimum conditions pinpointed in this study.


2020 ◽  
Vol 16 ◽  
Author(s):  
Hiba N. Rajha ◽  
Gisèle El Khoury ◽  
Nada El Darra ◽  
Karim Raafat ◽  
Espérance Debs ◽  
...  

Background: Saussurea lappa is a traditionally well-known plant appreciated for its biological activities and medicinal uses. Objective: In the present study, the recovery of antioxidants from Saussurea lappa was optimized using Response Surface Methodology (RSM). The efficiency of a newly-patented infrared (IR) technology, Ired-Irrad®, was compared to that of the emerging ultrasound method (US) and the conventional solid liquid water bath (WB) extraction. Methods: The effects of time (t) and temperature (T), mostly known to affect the extraction process, were tested on maximizing the total phenolic compounds concentration (TPC) and the radical scavenging activity (AA). Response surface methodology was used for the optimization process. Results: A multiple response optimization of both time (t) and temperature (T) was conducted, showing the best extraction conditions to be for WB: t= 43.86 min, T=33.79°C, for US: t= 65.47 min, T= 57.97°C and for IR: t= 42.5 min, T=34.19°C. The quantity of the optimally extracted polyphenols by WB, US and IR; as well as many of their bioactivities were compared. IR extraction gave the highest yield of TPC (15.3 mg GAE/g DM) followed by US (14.8 mg GAE/g DM) and lastly WB (13.9 mg GAE/g DM). The highest antioxidant and antiradical activities were also obtained by the IR treatment. The optimal IR extract inhibited the growth of Staphylococcus aureus and Escherichia coli up to 65 and 35%, respectively. Moreover, all Saussurea lappa extracts (WB, US and IR) inhibited up to 96% the production of Aflatoxin B1 (AFB1) by Aspergillus flavus. Conclusion: Our findings on the extraction of antioxidants from Saussurea lappa demonstrated that IR technology is an efficient novel method that can be used to extract the maximum yield of polyphenols, with the highest antioxidant, antiradical and antibacterial activities.


INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (04) ◽  
pp. 20-28 ◽  
Author(s):  
Sulaiman M. Alnasser ◽  

The current study reports the antioxidant activity of Ocimum basilicum. Central composite design (CCD) was used to study the effect of variables on the extraction using magnetic stirrer (MST). Three independent variables including temperature, extraction speed, and extraction time were studied that optimize particular responses of total phenolic content, ferric reducing antioxidant power (FRAP), and DPPH free radical scavenging activity. The effect of the extraction temperature on extraction process was investigated in the range from 26.3oC to 93.6oC, extraction time, from 1 to 30 h, and extraction speed, in the range from 263 to 936 rpm. The extraction yield was significantly (P < 0.05) affected by all the variables. Temperature and extraction speed were found to have a marked effect while the extraction time was found to have possible minor effects. Graphical optimization determined the optimum conditions for the extraction. The optimum condition predicted an extraction yield of 20.49g/100g at 75.33oC for five hours at 73 rpm. Optimum conditions were determined to obtain highest extraction yield. Results showed that water/seed ratio was the most significant parameter, followed by temperature and time. All quantitative modeling and response surface methodology recommended that extraction temperature and time were the most effective parameters of MST process. However, extraction time was found out to be an insignificant factor in MST extraction of antioxidant and total phenolic compounds of O. basilicum.


Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 182
Author(s):  
Kang Hyun Lee ◽  
Ye Won Jang ◽  
Hansol Kim ◽  
Jang-Seu Ki ◽  
Hah Young Yoo

Microalgae have been attracting attention as feedstock for biorefinery because they have various advantages, such as carbon fixation, high growth rate and high energy yield. The bioactive compounds and lutein contained in microalgae are known to be beneficial for human health, especially eye and brain health. In this study, in order to improve the recovery of bioactive extracts including lutein from Tetraselmis suecica with higher efficiency, an effective solvent was selected, and the extraction parameters such as temperature, time and solid loading were optimized by response surface methodology. The most effective solvent for lutein recovery was identified as 100% methanol, and the optimum condition was determined (42.4 °C, 4.0 h and 125 g/L biomass loading) by calculation of the multiple regression model. The maximum content of recovered lutein was found to be 2.79 mg/mL, and the ABTS radical scavenging activity (IC50) and ferric reducing antioxidant power (FRAP) value were about 3.36 mg/mL and 561.9 μmol/L, respectively. Finally, the maximum lutein recovery from T. suecica through statistical optimization was estimated to be 22.3 mg/g biomass, which was 3.1-fold improved compared to the control group.


2021 ◽  
Vol 02 ◽  
Author(s):  
Donia Anvari ◽  
Rashid Jamei

Background: Medicinal and healing plants have been used in treating human diseases for centuries because of their therapeutic effects. They may assist in curing common ailments such as a multitude of skin problems, various disorders from muscle spasms to cuts and wounds. They can be used to relieve symptoms of different illnesses from a cold to some forms of arthritis or some allergies as well. The Asteraceae plant is a strong source of antimicrobial and antioxidant agents and this paper focuses on its specifications. Objectives: This study aimed to investigate the antioxidant potential and radical scavenging of different solvents (Methanol and Ethanol) of five species, i.e., Artemisia absinthium L., Arctium lappa L., Centaurea cyanus L., Silybum marianum L., and Echinops ritro L., belonging to the Asteraceae family. Methods: Methanol and ethanol extracts of the above plants were prepared. The obtained sections were evaluated for total phenolic content (TPC), total flavonoid content (TFC), total antioxidant capacity (TAC), chain-breaking activity (CBA), thiobarbituric acid (TBA), and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. Also, Ferric reducing antioxidant power (FRAP), Nitric oxide (NO) radical scavenging, Hydrogen peroxide (H2O2) radical scavenging, and Superoxide (O2-) radical inhibition assay were measured. Phenolic compounds were determined and measured by high-performance liquid chromatography (HPLC) as well. Results: The collected and analyzed data showed that the highest values for the TPC, TFC, TBA, and DPPH were related to methanol extract of A. lappa L. Moreover, the maximum values for the CBA, H2O2, and O2- were observed in the Ethanol extract of E. ritro L., while methanol extract of E. ritro L. showed the highest amount of FRAP and NO. Eventually, the highest value for TAC was related to A. absintium L., and it was also realized that methanol compared to ethanol solvent was more successful in the extraction procedure. Conclusions: These findings suggest that A. lappa L. and E. ritro L. extracts can be considered excellent natural antioxidant agents. The type of solvent can affect the extraction of phenolic compounds. Sinapic acid, as the highest level of phenolic acid, was found in S. marianum L.


Author(s):  
Khurul Ain Mohamed Mahzir ◽  
Siti Salwa Abdul Gani ◽  
Nor Fadzillah Mokhtar

In this study, the optimal condition for the extraction of antioxidants from the fruit Buah Mahkota Dewa (Phaleria macrocarpa) was determined by using Response Surface Methodology (RSM). The optimization was applied using central composite design (CCD) to investigate the three independent variables, namely extraction temperature (oC), extraction time (minutes) and extraction solvent to-feed ratio (%v/v) on the responses of free radical scavenging activity (DPPH), ferric ion reducing power assay (FRAP), total phenolic content (TPC) and total flavonoid content (TFC).The optimal conditions for the antioxidants extraction were found to be extraction temperature (64oC), extraction time (66 minutes) and solvent to-feed ratio (75 %v/v) with the highest percentage yield of DPPH, FRAP, TPC and TFC were 86.85%, 7.47%, 292.86 mg/g and 3.22 mg/g respectively. Moreover, the data were subjected to response surface methodology (RSM) and the results showed that the polynomial equations for all models were significant, did not show lack of fit, and presented adjusted determination coefficients (R2) above 99%, proving the yield of phenolic, flavonoid and antioxidants activities obtained experimentally were close to the predicted values and the suitability of the model employed in RSM to optimize the extraction conditions. Hence, in this study, the fruit from P.macrocarpa could be considered to have the strong antioxidant ability and can be used in various cosmeceutical or medicinal applications.


2018 ◽  
Vol 62 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Atreyi Sarkar ◽  
Uma Ghosh

The seeds of Tamarindus indica are known to possess a wide range of phenolic compounds with high antioxidant activity as measured by the ferric reducing antioxidant power (FRAP). In the present study, the optimum conditions for the extraction of crude phenolic antioxidants from Tamarind seed were determined using response surface methodology (RSM). A central composite design (CCD) was used to investigate the effects of four independent variables, namely concentration of extractable solids in solvent (g/ml; X1), extraction time (h; X2), extraction temperature (°C; X3) and solvent concentration (%, v/v; X4) on the responses of total polyphenol content (TPC) and FRAP. The CCD consisted of 30 experimental runs. A second-order polynomial model was used for predicting the responses. Canonical analysis of the surface responses revealed that the predicted optimal conditions for the maximal yield of TPC and FRAP were concentration of extractable solids in solvent of 0.049 g/ml, extraction time of 3.24 h, extraction temperature of 45 °C and a solvent concentration of 50%. The experimental values in the optimised condition coincided with the predicted ones within a 95% confidence interval, hence indicating the suitability of the model and the success of RSM in optimizing the extraction parameters.


2021 ◽  
Vol 11 (3) ◽  
pp. 1134
Author(s):  
Inyong Kim ◽  
Jung-Heun Ha ◽  
Yoonhwa Jeong

Extraction from edible plants is a highly important process that has various biological functions. To maximize biological activity, extraction methods should facilitate optimal extraction of functional phytochemicals. In this study, the optimal hydrothermal extraction conditions of Acer tegmentosum were determined using response surface methodology (RSM), and HepG2 cells were treated with optimized extract and hydrogen peroxide. In a central composition design, the independent variables were extraction temperature (X1: 70–90 °C), extraction time (X2: 2–6 h), and solvent-to-solid ratio (X3: 50–150). The maximum total phenolic contents (276.70 ± 10.11 mg GAE/g) and DPPH (2,2-diphenyl-1-pictylhydrazyl) activity (33.45 ± 2.20%) of A. tegmentosum were estimated at optimized extraction conditions, as follows: X1: 89.34 °C, X2: 7.36 h, X3: 184.09. Using the calculated extraction conditions, functional phytochemicals were extracted by hydrothermal extraction and freeze-dried. A. tegmentosum treatment (>10 μg/mL) of HepG2 cells remarkably attenuated hydrogen-peroxide-inducible hepatic cellular death and reactive oxygen species production in vitro.


2018 ◽  
Vol 8 (10) ◽  
pp. 1905 ◽  
Author(s):  
Qinghua He ◽  
Bin Du ◽  
Baojun Xu

This study aims to provide fundamental knowledge for the use of black goji berry and determine the optimum process parameters that produce maximum phenolics from black goji berry through accelerated solvent extraction (ASE). The optimal extractions of phenolics and antioxidants from black goji were explored via the ASE techniques, applying the response surface methodology (RSM) design. After reaching the optimal conditions for single factors, the optimal ASE extraction conditions were found through a total of 17 runs following the Box-Behnken design (BBD) from RSM. The maximum yield of total phenolic content (TPC) was 17.92 mg GAE/g under the best extraction conditions: an extraction temperature of 89.38 °C, an ethanol concentration of 70% and an extraction time of 13 min. This study indicates that the optimal extraction conditions could serve as the scientific basis for scaled-up industrial production. Black goji berry could be a viable source of nutraceuticals due to the abundance of antioxidant and phenolic substances.


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