scholarly journals A Modified Scheffe's Simplex Lattice Design Method in Development of Ceramic Carriers for Catalytic Neutralizers of Gas Emissions

2021 ◽  
Author(s):  
Valery Ved ◽  
Hanna Ponomarenko ◽  
Yevhenia Ponomarenko ◽  
Konstantin Gorbunov
Keyword(s):  
Mass Fraction ◽  
Design Method ◽  
Weight Fraction ◽  
Ceramic Materials ◽  
Gas Emissions ◽  
Catalyst Carrier ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Purification Equipment

A modified Scheffe's simplex lattice design method is proposed to study the properties of multicomponent materials. This modified Scheffe's method allowed determining the optimal compositions of cordierite and corundum based ceramic materials that are used as catalyst carrier for gas purification equipment. The obtained material (0.63-1.25 mm weight fraction of cordierite of 0.35 mass% fraction; < 0.63 mm weight fraction of cordierite of 0.35 mass% fraction; < 0.06 mm weight fraction of corundum of 0.2 mass% fraction; 1.25-2.5 mm weight fraction of cordierite of 0.2 mass% fraction) was used successfully for the manufacturing of catalytic neutralizers of gas emissions.

scholarly journals Optimasi Formula Tablet Piroksikam Menggunakan Eksipien Laktosa, Avicel pH-101, dan Amprotab dengan Metode Simplex Lattice Design

2020 ◽  
Vol 17 (1) ◽  
pp. 31-44
Author(s):  
Ikhwan Yuda Kusuma ◽  
Rani Prabandari
Keyword(s):  
Physical Properties ◽  
Design Method ◽  
Dominant Factor ◽  
Content Uniformity ◽  
Compression Tests ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Contour Plots ◽  
Simplex Lattice ◽  
Optimum Formula

Piroxicam solubility in water is very small this cause problem in the process of absorption so that it’s required an optimal formula to establish the physical properties of tablet quality for piroxicam tablets. The purpose of this research was creating formulas with the optimal combination of excipients lactose, Avicel pH 101, and piroxicam amprotab to obtain tablets with good physical properties and disolution. Seven piroxicam tablet formulas were made with a combination of lactose, avicel PH-101, and Amprotab on 2 batches. Method for making tablets piroxicam was established by direct compression. Tests included were the physical properties of piroxicam tablets tablets weight uniformity, uniformity of size, hardness, brittleness, disintegration test, as well as dissolution test, and content uniformity. Based on the simplex lattice design method, lactose is a dominant factor to improved the uniformity of tablet’s concentartions. Interaction of two components avicel PH-101 and amprotab is a dominant factor to reduced vulnerability. Interaction of three components lactose, avicel PH-101 and amprotab is a dominant factor to lowered the value coefisien variation of weight uniformity, increased hardness, decreased the disintegration, and improved dissolution of tablets. Selection of the optimum formula was determined by the method of simplex lattice design through diagrams superimposed contour plots and contour plots for obtaining the optimal proportions of each ingredient as follows: lactose (85,154–100%), avicel PH-101 (0–12,437%), and amprotab (0–5,425%).

scholarly journals Review Pemanfaatan Design Expert untuk Optimasi Komposisi Campuran Minyak Nabati sebagai Bahan Baku Sintesis Biodiesel

2017 ◽  
Vol 1 (1) ◽  
pp. 11 ◽  
Author(s):  
Reshita Amalia Ramadhani ◽  
Dody Herdian Saputra Riyadi ◽  
Bayu Triwibowo ◽  
Ratna Dewi Kusumaningtyas
Keyword(s):  
Vegetable Oils ◽  
Software Design ◽  
Raw Materials ◽  
Design Method ◽  
Anova Analysis ◽  
Design Expert ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Mixed Oil

Pencampuran berbagai jenis minyak nabati untuk sintesis biodiesel merupakan salah satu upaya pencarian sumber energi alternatif terbarukan. Campuran berbagai macam minyak nabati lebih potensial karena ketersediaannya masih melimpah dan kurang dimanfaatkan. Campuran minyak nabati yang dapat digunakan sebagai bahan baku antara lain: minyak jarak pagar, minyak nyamplung, dan minyak jelantah. Komposisi campuran ditentukan dan dioptimasi menggunakan metode simplex lattice design dengan total campuran tertentu. Data yang akan didapat yaitu data pengaruh masing-masing campuran minyak terhadap penurunan bilangan FFA saat reaksi esterifikasi. Metode simplex lattice design merupakan salah satu metode yang terdapat di dalam software Design Expert 10.0 yang digunakan untuk optimasi formula pada berbagai jumlah komposisi bahan yang berbeda. Sintesis biodiesel dijalankan berdasar design of experiment yang dihasilkan oleh program Design Expert 10.0. Kegunaan metode simplex lattice design diantaranya: penentuan formula, mengoptimalkan variabel formulasi dan mengetahui jumlah run, menjaga konsentrasi total tetap konstan. ANOVA (Analysis of variance) dilakukan untuk menentukan signifikansi analisis respon antar variabel dan dapat mengetahui model yang disarankan. Desirability merupakan nilai fungsi yang menunjukkan kemampuan program untuk memenuhi keinginan berdasarkan kriteria yang ditetapkan pada produk akhir. Nilai desirability yang semakin mendekati nilai 1,0 menunjukkan kemampuan program untuk menghasilkan produk yang dikehendaki semakin sempurna.Mixing different types of vegetable oils for synthesis of biodiesel is one of the efforts for renewable alternative energy. Mixed oil of vegetable oils more potential because it is not difficult to finding raw materials and not useful yet. Vegetable oils mixture as raw materials used include: Jatropha curcas oil, nyamplung oil and waste cooking oil. The mixed and optimized compositions use the simplex lattice design method with a total mixture. The data to be obtained is the influence data of each mixed oil to decrease of FFA during esterification reaction. Simplex lattice design method is one of the methods available in the software Design Expert 10.0. The designs used to optimize the formula on different amounts of different material compositions. The biodiesel synthesis is run based on the experimental design produced by the Expert Design 10.0 program. The use of lattice simplex method design: determination formula, optimizing formulation variable and total number of runs, keeping total concentration constant. ANOVA (Analysis of variance) to determine the significance of response analysis among variables and can know the suggested model. Desirability is a method that shows the program's ability to meet the criteria specified in the final product. The desired value that is critical to the desired product improvement program is so perfect.

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.

scholarly journals Optimasi Propilen Glikol dan Etanol sebagai Peningkat Penetrasi Ibuprofen dalam Sediaan Gel dengan Metode Simplex Lattice Design (Propylene Glycol and Ethanol Optimization as Ibuprofen Penetration Enhancer in Gel Dosage using Simplex Lattice Design Metho

2018 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Baiq Wahyudyati Karnia Qisti ◽  
Dwi Nurahmanto ◽  
Viddy Agustian Rosyidi
Keyword(s):  
Propylene Glycol ◽  
Penetration Rate ◽  
Design Method ◽  
Penetration Enhancers ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Rate Optimization ◽  
Optimum Formula ◽  
Optimum Solution

Ibuprofen is a non-steroid anti inflammatory drug (NSAID) used for rheumatoid arthritis treatment. In this study, formulation, evaluation, and optimization of ibuprofen gel formula were conducted in order to determine the best ibuprofen penetration rate through the rats skin using propylene glycol and ethanol as penetration enhancers and to find out the optimum formula to get the best penetration rate with simplex lattice design method. Evaluations included organoleptic, pH, viscosity, gel dispersive, assay of gel formulations, and ibuprofen penetration rate assay. Penetration rate was determined by paddle type dissolution and the samples were analyzed by spectrophotometry UV-Vis. The results of ibuprofen penetration rate assay were analyzed and optimized using design expert trial version 10. The results of ibuprofen penetration rate were F1 1.524 ± 0.121 µg/cm2.minute; F2 1.945 ± 0.0104 µg/cm2.minute; and F3 1.173 ± 0.216 µg/cm2.minute. Penetration rate optimization resulted in one optimum solution formula which was 18.000% propylene glycol and 12.000% ethanol with a maximum flux of 1.957 ug/cm2.minute and desirability 1. It can be concluded that the best ibuprofen penetration rate was F2 with flux 1.945 ± 0.0104 µg/cm2.minute with 15% propylene glycol and 15% ethanol.   Keywords: gel, ibuprofen, propylene glycol, ethanol, simplex lattice design  

scholarly journals Optimasi Asam Glikolat dan Asam Sitrat dalam Krim Tabir Surya Kombinasi Titanium Dioksida, Avobenzone dan Octyl Methoxycinnamate

2020 ◽  
Vol 8 (3) ◽  
pp. 139
Author(s):  
Desy Diana Sari ◽  
Lidya Ameliana ◽  
Dwi Nurahmanto
Keyword(s):  
Titanium Dioxide ◽  
Citric Acid ◽  
Adverse Effects ◽  
Uv Radiation ◽  
Glycolic Acid ◽  
Design Method ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Optimum Formula

Ultraviolet (UV) radiation is the main cause of sunburn and skin cancer. The adverse effects of UV radiation are solved by sunscreen as protection for longer outdoors. In this study, optimization of glycolic acid and citric acid in sunscreen cream combination of titanium dioxide, avobenzone, and octyl methoxycinnamate were investigated using simplex lattice design method. The sunscreen cream evaluation includes physicochemical testing (organoleptic, homogeneity, emulsion type, spreadability, viscosity, and pH) and sunscreen effectiveness (SPF, % erythema transmission, and % pigmentation transmission). The value of physicochemical testing are 5,96 cm - 6,3 cm of  spreadability testing; 83,33 dPa.s – 108,33 dPa.s of viscosity testing; 4,06 – 4,67 of pH testing. The value of sunscreen effectiveness are 9,79 – 13,35 of SPF testing; 4,55x10-06 - 0,15x10-06% of % erythema transmission; 5,77 – 7,16 % of % pigmentation transmission. The optimum formula was obtained by combining glycolic acid 2% and citric acid 0% with a desirability value of 0,649.

scholarly journals OPTIMASI GEL HAND SANITIZER OLEUM CITRI DENGAN KOMBINASI CARBOPOL, LIDAH BUAYA DAN TEA MENGGUNAKAN SIMPLEX LATTICE DESIGN

2021 ◽  
Vol 6 (1) ◽  
pp. 21-28
Author(s):  
Joko Santoso ◽  
◽  
Heru Nurcahyo
Keyword(s):  
Physical Properties ◽  
Design Method ◽  
Aloe Vera ◽  
Homogeneity Test ◽  
Stabilizing Agents ◽  
Hand Sanitizer ◽  
Lattice Design ◽  
Simplex Lattice Design ◽  
Simplex Lattice ◽  
Optimum Formula

Handsanitizer gel is composed of various additives such as geling agents, humectants and neutralizing / stabilizing agents. This material is certainly a basic ingredient that will affect the shape and quality of the preparation. Carbopol is very good when used, so that low levels can provide a significant viscosity response. Eleven hand sanitizer gel formulas with variations of carbomer, aloe vera and TEA were tested for their physical properties including organoleptic, homogeneity test, pH test, spreadability and adhesion test . The optimum formula is obtained by using the Simplex Lattice Design method, then the results are analyzed using an expert design software. The optimum formula for oleum citri hand sanitizer gel contains 0.944 with carbomer 0 (0.5%), aloe vera 0.471 (5.239%) and TEA 0.529 (0.576%). The t test results obtained showed insignificant differences between the response of the physical properties of the experiment results and the prediction software.

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.

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