Modeling of extraction of silica rendemen husk rice (Oryza sativa l.) by microwave extraction assisted (MAE) using response surface methodology (RSM)
| Autor: | D W Indriani, T R Wardhani |
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| Rok vydání: | 2022 |
| Zdroj: | IOP Conference Series: Earth and Environmental Science. 963:012048 |
| ISSN: | 1755-1315 1755-1307 |
| DOI: | 10.1088/1755-1315/963/1/012048 |
| Popis: | Nutrient immobilization technology in plants has been developed to increase the ability of the soil to grow plants. Immobilization is a technique to trap compounds in tablets so that they can be used to retain nutrients in the soil, especially in paddy fields. The purpose of this study was to determine the effect of the use of synthetic fertilizer concentration from rice husk in the manufacture of tablets, as well as to optimize the yield response with the independent variables of KOH concentration and time using Response Surface Methodology (RSM). The result of this research is that the highest organic matter content contained in the material after extraction is 52.54%. Optimization was carried out using Response Surface Methodology (RSM) with the Central Composite Design (CCD) method on Design-Expert software with the independent variables being KOH concentration (2.5%, 5%, 7.5%) and time (5 minutes, 7.5 minutes, 10 minutes while) the response variable is the result. The summary statistics data model suggested by the software is linear where the lowest standard deviation value is 0.6130, the highest R2 value is 0.8469, the highest adjusted R2 value is 0.8341, the highest R2 predicted value is 0.8063, and the PRESS value (the lowest prediction error sum of square) was 11.41. Then the result of the response from the software is 5.033%. |
| Databáze: | OpenAIRE |
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