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All Journal Equilibrium Journal of Chemical Engineering Jurnal Ilmiah Wahana Pendidikan
Nurul Hidayatun
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Pengaruh Silica Gel dan Waktu Pengeringan Terhadap Penurunan Kadar Air dan Viabilitas Benih Kedelai Anjasmoro Pramaditya Taufik Zulfikar; Muharam Muharam; Darso Sugiono; Nurul Hidayatun
Jurnal Ilmiah Wahana Pendidikan Vol 7 No 5 (2021): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.238 KB) | DOI: 10.5281/zenodo.5504640

Abstract

Soy plant (Glycine max L.) has an important meaning to meet food needs in order to improve the nutrition of the society. Based on previous research, the provision of seeds in sufficient and timely quantities is often constrained due to improper seed processing and the initial moisture content of seeds before relatively high storage. This then attracted the attention of the authors to research to find out whether there is an interaction between silica gel treatment with drying duration to decreased moisture content and seed viability and the growth and yield of soybean varieties of Anjasmoro using experimental methods with Complete Random Design (RAL) 2 factors and the treatment is repeated 3 times so that 12 samples are obtained. The results achieved from this study are that there is an interaction between silica gel treatment and the duration of drying of seed moisture content, seed viability, and the growth and yield of soybean plants (Glycine max L.). The tallest plant of 68 cm is achieved by control treatment with a drying length of 2 weeks. The highest yield weight per plant of 147 grams was achieved by the Control s0 treatment with a drying duration of 2 week.
Effect of Acrylamide And Potassium Peroxodisulphate on The Quality of Bead Gel Based on Cassava Bagasse-Carrageenan Using Microwave Grafting Method Sperisa Distantina; Nurul Hidayatun; Shifa Annisa Nabila; Mujtahid Kaavessina; Fadilah Fadilah
Equilibrium Journal of Chemical Engineering Vol 6, No 2 (2022): Volume 6, No 2 December 2022
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v6i2.68130

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ABSTRACT. Hydrogels are widely used for drug delivery systems, immuno-chemotherapy applications, efficient use of water, preventing dry soil, and increasing soil infiltration. Generally, hydrogels are derived from synthetic polymers which is non-biodegradable and toxic. Cassava bagasse is an alternative cellulose to make hydrogels. The purpose of this research was to determine the effect of the amount of acrylamide and potassium peroxodisulphate (KPS) initiator on the quality of bead gel based on cassava bagasse-carrageenan. Chemical structure of the hydrogel was studied using FTIR spectroscopy. Cassava bagasse was immersed in a solution of n-hexane to separate the fat. Then, fat-free cassava bagasse was grafted with mass ratios of cassava and acrylamide 1:5, 1:10, and 1:15 in 110 mL water. The solution was added with a KPS initiator with weight variations (g) 0.04; 0.08; 0.12 then stirred 15 min. The solution was put in the microwave with 630 watts of irradiation for 450 s with the cooling cycle temperature maintained at 65-70oC. The aqueous of grafted polymer and carrageenan was injected into beaker glass that contained 1 cm of palm oil and mixture of 0.2 M CaCl2 and 0.2 M KCl in an ice bath. Results showed that the highest average swelling capacity was found in the bead gel variation 1:15 with the number of initiators 0.04 g of 1797.95% at a time of 210 minutes of immersion. From FTIR spectrum, it was found that there was a success in grafting acrylamide into bagasse’s backbone using the microwave grafting method with KPS as initiator.Keywords: Acrylamide, Bead Gel, Cassava Bagasse, Grafting Microwave, Potassium Peroxodisulphate
Co-Authors Darso Sugiono Fadilah Fadilah Muharam Muharam Mujtahid Kaavessina Pramaditya Taufik Zulfikar Shifa Annisa Nabila Sperisa Distantina