scholarly journals Optimasi Formula Gel Antioksidan Ekstrak Etanol Buah Bligo (Benincasa hispida) dengan Metode Simplex Lattice Design (SLD)

2017 ◽  
Vol 3 (2) ◽  
pp. 150-156
Author(s):  
Suryani Suryani ◽  
Andi Nafisah ◽  
Syahrir Mana'an
Keyword(s):  
Antioxidant Activity ◽  
Laboratory Experiments ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Benincasa Hispida ◽  
Dpph Method ◽  
Simplex Lattice ◽  
Dispersive Power ◽  
Carbomer 940 ◽  
Optimal Formula

Benincasa hispida has many benefits including as antioxidant. This study aims to evaluate the effect of Carbomer 940, HPMC and NaOH concentrations in antioxidant gel formula and to determine Carbomer 940, HPMC and NaOH concentrations that could produce the optimal antioxidant gel formula. Benincasa hispida was extracted by maceration method and antioxidant activity was tested by DPPH method. The antioxidant gels were formulated with variety combinations of Carbomer 940, HPMC and NaOH. The optimal gel formula was obtained by Design Expert 7.1.5 with Simplex Lattice Design method. The physical characteristic of optimal gel formula was retested and compared with the results of Simplex Lattice Design .The results showed that antioxidant activity of Benincasa hispida ethanolic extract has potent activity with the IC50 40,28 μg/mL. The increasing concentration of Carbomer 940, HPMC and NaOH possessed the high coefficients viscosity (cPs) with the value of 4366, 4133 and 3750 respectively. The increasing concentration of NaOH possessed pH and dispersive power of the gel with coefficients of 11,0 and 5,21 respectively. The desirability values suggested by Simplex Lattice Design were 1,000 with component variation of the optimal formula were Carbomer 940 1,5%, HPMC 0,5% and NaOH 0,4%. The significance test of the optimal formula  compared to the results of laboratory experiments showed the significance of viscosity of 0,130, the dispersive power of 0,348 and pH of 0,184 that means there was no significant difference between the prediction values by using Simplex Lattice Design and results of laboratory experiments. It was indicated that significance values of each responses were over 0,05 (p>0.05).

scholarly journals Characterization and Optimization of Capryol-90, Polysorbate-80, And Peg-400 Proportion in Mefenamic Acid Self Nanoemulsifying Drug Delivery System (SNEDDS) With Simplex-Lattice-Design

2018 ◽  
Vol 3 (4) ◽  
pp. 164
Author(s):  
Mardiyanto Mardiyanto ◽  
Najma Annuria Fithri ◽  
Martina Tandry
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Mefenamic Acid ◽  
Polysorbate 80 ◽  
Lattice Design ◽  
Peg 400 ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Optimal Formula

Mefenamic acid as pain relief drug belongs to the biopharmaceutics classification system (BCS) class II which is practically insoluble in water causing extremely low dissolution in gastrointestinal tract. The self nanoemulsifying drug delivery system (SNEDDS) is a new innovation pharmaceutical dosage form that has effectively known to increase solubilization of hydrophobic drug in polar solvent. In this study the capryol-90 was selected as oil phase in SNEDDS as it showed maximal solubility of mefenamic acid (20 mg/mL). Combination of polysorbate-80 and PEG-400 as a generally regarded as safe (GRAS) excipient were used as surfactant and co-surfactant in SNEDDS due to its high HLB property that can increase mefenamic acid solubility in water. The ternary phase diagram of capryol-90, polysorbate-80, and PEG-400 was constructed in advance to obtain the component concentration of spontaneous nanoemulsion region. Model simplex-lattice-design cooperated in Design-Expert®10 was used to define SNEDDS mefenamic acid formula. Optimized mefenamic acid SNEDDS formula consisted of 20% capryol-90, 31.62% polysorbate-80, and 48.38% PEG-400. Characterization study of Optimized mefenamic acid SNEDDS formula showed improvement of drug content (102.820 ± 4.950)%, emulsification time (421.015 ± 1.290) second, and viscosity (0.927 ± 0.017) mm2/s 30oC. One way ANOVA statistical analysis result of optimal formula SNEDDS (105.210 ± 4.425)% of drug content, commercial generic caplet (0.917 ± 0.094)%, and mefenamic acid powder capsule (10.446 ± 0,333)% gave significant value (sig*) below than 0.05. Optimal formula proved that SNEDDS can significantly increase mefenamic acid dissolution of pH 7.4 (ileum fluid). The optimal formula of mefenamic acid SNEDDS successfully formed an uniformity droplet size (PDI 0.18) with mean size 241.9 nm and  the surface charge has a value of -16.5 mV respectively.

scholarly journals OPTIMASI ASAM STEARAT DAN TEA PADA FORMULA SEDIAAN KRIM EKSTRAK KULIT PISANG KEPOK (Musa paradisiaca L.)

2019 ◽  
Vol 1 (3) ◽  
pp. 225-237
Author(s):  
Dwi Saryanti ◽  
Iwan Setiawan ◽  
Romadona Ayu Safitri
Keyword(s):  
Stearic Acid ◽  
Maximum Concentration ◽  
Design Method ◽  
Minimum Concentration ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Significant Difference ◽  
Simplex Lattice ◽  
Optimum Formula ◽  
Optimal Formula

Banana kepok peel has flavonoid compounds used as antioxidants. The aim of this research is to get optimum formula of cream by combination of stearic acid and trietanolamin on good physical propertie of cream. Cream was made with stearic acid 15% minimum concentration and maximum concentration 17%, triethanolamine with minimum concentration 2% and maximum concentration 4%. The optimization of the formula was using the simplex lattice design method with parameters are pH, viscosity, spreadability, adhesion and protection. The optimum cream formula on the combination of stearic acid 16.7 grams and triethanolamine 2.3 grams. Verification results of optimal formula cream for pH got 6.1, viscosity 237.47, adhesion 12.32, power spread 18.11, protection 14.98 which showed no significant difference in the test, and has good stability.

The Optimization of Maltodextrin and Arabic Gum in the Microencapsulation of Aqueous Fraction of Clinacanthus nutans Using Simplex Lattice Design

2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Intan Martha Cahyani ◽  
Ebta Narasukma Anggraeny ◽  
Bekti Nugraheni ◽  
Christiana Retnaningsih ◽  
V Kristina Ananingsih
Keyword(s):  
Antioxidant Activity ◽  
Moisture Content ◽  
Flow Rate ◽  
Aqueous Fraction ◽  
Arabic Gum ◽  
Design Expert ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Clinacanthus Nutans ◽  
Simplex Lattice

The aqueous fraction of Clinacanthus nutans leaf extracts contains flavonoids which known had antioxidative properties. To improve acceptability, this viscous and bitter aqueous fraction was microencapsulated using maltodextrin and Arabic gum. This research aims to discover the effectivity of maltodextrin and Arabic gum and the concentrations for optimum microencapsulation. Optimization design was done using Design Expert with simplex lattice design with ratios of 1:0; 0.75:0.25; 0.5:0.5; 0.25:0.75 and 0:1. The evaluations done to the results were microcapsule yield, moisture content, flow rate, and antioxidant activity. The optimum ratio of maltodextrin and Arabic gum was obtained at 0.806:0.194 with 1.49% moisture content, flow rate 4.375 g/s and antioxidant activity at the value of 842,499 ppm. The result of one-sample T-test showed that the prediction result of Design Expert did not differ significantly from the experiment result. From the data, it was concluded that the resulting equation was valid

scholarly journals Evaluation of the synergistic effects of antioxidant activity on mixtures of the essential oil from Apium graveolens L., Thymus vulgaris L. and Coriandrum sativum L. using simplex-lattice design

Heliyon ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. e01942 ◽  
Author(s):  
Yasiel Arteaga Crespo ◽  
Luis Ramón Bravo Sánchez ◽  
Yudel García Quintana ◽  
Andrea Silvana Tapuy Cabrera ◽  
Abdel Bermúdez del Sol ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Synergistic Effects ◽  
Coriandrum Sativum ◽  
Apium Graveolens ◽  
Thymus Vulgaris ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice

scholarly journals Simplex lattice design for optimization of the mass ratio of Curcuma longa L., Curcuma zedoaria (Christm.) Roscoe and Curcuma aromatica Salisb. to maximize curcuminoids content and antioxidant activity

2021 ◽  
Vol 71 (3) ◽  
pp. 445-457
Author(s):  
Chaowalit Monton ◽  
Panupong Chuanchom ◽  
Puwadon Popanit ◽  
Sukanya Settharaksa ◽  
Pathamaporn Pathompak
Keyword(s):  
Antioxidant Activity ◽  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Curcuma Longa ◽  
Mass Ratio ◽  
Curcuma Zedoaria ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
The Individual

AbstractThe aim of this work was to optimize the mass ratio of three Curcuma plants’ rhizomes to obtain the highest curcuminoid content and antioxidant activity using the simplex lattice design. The selected Curcuma plants were C. longa, C. zedoaria and C. aromatica. The simplex lattice design was applied in the work. The individual curcuminoids (curcumin, demethoxycurcumin and bis-demethoxycurcumin) and total curcuminoid content were determined using high-performance liquid chromatography. Curcuma longa alone provided the highest content of bis-demethoxycurcumin and demethoxycurcumin. A mixture of C. longa and C. aromatica in the mass ratio of 72:28 % provided the highest curcumin content. The results showed that C. longa alone exhibited the highest antioxidant activity.

scholarly journals OPTIMASI CAMPURAN AVICEL PH 101 DAN LAKTOSA SEBAGAI BAHAN PENGISI PADA TABLET EKSTRAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SECARA GRANULASI BASAH

2021 ◽  
Vol 3 (2) ◽  
pp. 102-116
Author(s):  
Zila Tjhia Kokafrinsia ◽  
Dwi Saryanti
Keyword(s):  
Design Method ◽  
Test Method ◽  
Wet Granulation ◽  
Lattice Design ◽  
Flower Extract ◽  
Simplex Lattice Design ◽  
Weight Variation ◽  
Significant Difference ◽  
Simplex Lattice ◽  
Optimal Formula

Rosella flower (Hibiscuss sabdariffa L.) in traditional medicine can provide protection against various diseases, such as coronary heart disease, cancer, lowering cholesterol, and liver disorders. This study aims to obtain the optimum formula of tablet of rosella flower extract with a mixture of Avicel PH 101 and lactose as a filler using wet granulation method. Rosella flower extract was obtained by maceration of rosella flower powder using 70% ethanol. The optimization formula for tablets using the Simplex Lattice Design method with Design Expert software version 10. The parameters used in the optimization are weight variation, hardness, friability and disintegration time. Verification of the optimal formula using the SPSS 18 program with the One Sample T-test method with a confidence level of 95%. The results showed that the optimal formula of tablet of rosella flower extract was the Avicel PH 101 97.82%: 2.17% lactose. The optimal formula has weight variation 1.53% ± 0.0073; hardness 5.087 kg ± 0.5135; the friability is 0.3% ± 0.041. The resulting disintegration was 22.99 minutes ± 2.218. The results of the verification of the optimal formula show that there is no significant difference between the predictions of the Simplex Lattice Design method and the results of the tests performed so that it can be said that the method is valid.

scholarly journals Optimization of HIB Value Combination of Tween 60 and Span 80 on Cream Formulation of Ethanol Extract of Green Tea Leaves (Camellia Sinensis L.)

2018 ◽  
Vol 23 (3) ◽  
pp. 124
Author(s):  
Fransiska Lisa Anindya Putri ◽  
Akhmad Kharis Nugroho ◽  
Erna Prawita Setyowati
Keyword(s):  
Antioxidant Activity ◽  
Green Tea ◽  
Camellia Sinensis ◽  
Ethanol Extract ◽  
Tea Leaves ◽  
Lattice Design ◽  
Dpph Method ◽  
Green Tea Leaves ◽  
Span 80 ◽  
Tween 60

Green tea (Camellia sinensis L.) is known to have ability to protect skin against free radicals. This is supported by polyphenol compound catechin. This research aims to determine the optimum Hydrophilic-Lipophilic Balance (HLB) value of Tween 60 and Span 80 compositions on the optimum cream formula of ethanol extract of green tea leaves. Tea leaves are extracted by macerating using 70% ethanol. Catechin in extract is known from Thin Layer Chromatography (TLC) test with silica gel 60 F254 as stationary phase and ethyl acetate:aquadest:formic acid (18:1:1 v/v) as mobile phase. Antioxidant activity is determined by 2,2-Diphenyl-1-picryhydrazyl (DPPH) method and value of Inhibition Concentration 50% (IC50) is then calculated. Formula optimization using Design Expert® version 7.1.5 (DX 7) software, Simplex Lattice Design (SLD) method with two components Tween 60 and Span 80. Cream is characterized according to physical properties organoleptic, homogeneity, viscosity, pH, spreadability, adhesiveness, and cream type. The optimum formula obtained is then tested for physical stability for 4 weeks at room temperature (28±2°C) and data are statistically analyzed using one-way ANOVA. The extract contains catechin proved with Retention factor (Rf) value 0.8 and has antioxidant activity with IC50 value 56.35 ppm. 6.4% Tween 60 and 3.6% Span 80 result an optimum HLB value 11.1. It has viscosity 2897.50±35.94 mPa.s, spreadability 18.44±0.06 cm2, adhesiveness 0.85±0.05 seconds, and pH 4.530±0.002. Statistical test shows that the cream is significantly altered at pH, but does not significantly change in viscosity, spreadability, and adhesiveness after being stored for 4 weeks.

scholarly journals BAYESIAN APPROACH TO THE D-OPTIMAL FOR MIXTURE EXPERIMENTAL DESIGN

2019 ◽  
Vol 3 (2) ◽  
pp. 109
Author(s):  
Uqwatul Alma Wizsa
Keyword(s):  
Optimal Design ◽  
Quadratic Model ◽  
Model Parameters ◽  
Potential Term ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Mixture Experimental Design ◽  
Special Case ◽  
Experimental Region

A mixture experiment is a special case of response surface methodology in which the value of the components are proportions. In case there are constraints on the proportions, the experimental region can be not a simplex. The classical designs such as a simplex-lattice design or a simplex-centroid design, in some cases, cannot fit to the problem. In this case, optimal design come up as a solution. A D-optimal design is seeking a design in which minimizing the covariance of the model parameter.  Some model parameters are important and some of them are less important. As the priority of the parameters, the prior information of parameters is needed in advance. This brings to a Bayesian D-optimal design. This research was focus on a baking experiment in which consisted of three ingredients with lower bounds on the proportion of the ingredients. The assumption model was a quadratic model. Due to the priority of the model parameters, the Bayesian D-optimal design was used to solve the problem. A point-exchange algorithm was developed to find the optimal design. Nineteen candidates is used to choose twelve design points. It found that the potential term is feasible to the actual model and design points represent overall points in the design area.

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