Enkapsulasi dan Karakterisasi Pelepasan Terkendali Pupuk NPK Menggunakan Kitosan Yang Ditaut Silang Dengan Glutaraldehida

J. Jayanudin, R. S. Lestari
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引用次数: 2

Abstract

Pelepasan terkendali pupuk NPK bertujuan untuk meningkatkan efisiensi penggunaan unsur hara tanaman dan juga untuk mengurangi pencemaran lingkungan. Penelitian ini bertujuan untuk menentukan pengaruh konsentrasi larutan kitosan dan glutaraldehida terhadap yield dan daya serap mikrokapsul pupuk NPK. Tujuan lain adalah menentukan karakterisasi dan analisis release pupuk NPK dari mikrokapsul dan juga menghitung kinetika release . Mikrokapsul pupuk NPK dipreparasi dengan mencampurkan pupuk NPK cair ke dalam larutan kitosan, kemudian campuran tersebutkan diteteskan ke dalam larutan glutaraldehida sambil diaduk. Mikrokapsul pupuk NPK yang terbentuk dicuci menggunakan petroleum eter dilanjutkan dengan heksana dan dikeringkan. Hasil penelitian menunjukkan bahwa peningkatan konsentrasi larutan kitosan dan glutaraldehida menghasilkan peningkatan yield, menurunkan daya serap air, dan menurunkan pupuk NPK yang release dari mikrokapsul pupuk NPK. Model kinetika release yang sesuai berdasarkan tingginya nilai R 2 adalah model order satu dan model Higuchi didapat dari mikrokapsul pupuk NPK yang dipreparasi dengan 1% (b/v) larutan kitosan dan 5% (v/v) larutan glutaraldehida.  Encapsulation and Characterization of Controlled Release of NPK Fertilizer Using Glutaraldehyde-Crosslinked Chitosan. Controlled release NPK fertilizer aims to improve the nutrient use efficiency (NUE) of plants and also to reduce environmental pollution. This study aims to determine the effect of the concentration of chitosan and glutaraldehyde solutions on the yield and absorptive ability of NPK fertilizer microcapsules. Another objective was to determine the characterization and analysis of NPK fertilizer releases from microcapsules and also to calculate the release kinetics. NPK fertilizer microcapsules were prepared by mixing liquid NPK fertilizer into a chitosan solution, and then the mixture was dripped into a glutaraldehyde solution while stirring.  NPK fertilizer microcapsules formed were washed using petroleum ether, followed by hexane and dried. The results showed that an increase in the concentration of chitosan and glutaraldehyde solutions resulted in an increase in yield, decreased water absorbency, and l ower NPK fertilizer released from microcapsules. The appropriate release kinetics models based on the higher R 2 value were the first-order model and the Higuchi model obtained from microcapsules of NPK fertilizer that was prepared with 1% (w/v) chitosan solution and 5% (v/v) glutaraldehyde solution.
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NPK乙酰氨基酚与谷氨酸杂交产生的乙基乙醇
NPK化肥的可控释放旨在提高植物养分的使用效率,并减少环境污染。本研究旨在确定kitosan和glutaraldehida溶液浓度对NPK化肥收集器的影响。另一个目标是确定微胶囊的NPK肥料的特性和释放分析,并计算相关的动态。NPK化肥的微型胶囊是通过将液体NPK化肥混合到kitosan溶液中来定制的,然后将指定的混合物倒入葡萄糖激酶溶液中搅拌。用乙醚(pec)乙基(heksana)进行清洗制成的NPK肥料微胶囊,然后将其与heksana (heksana)一起晾干。研究结果表明,kitosan和glutaraldehida溶液浓度的增加增加了yield,降低了水的吸收能力,降低了NPK释放的npa肥料从NPK的微化肥中。根据R 2值的高价值,有效的释放动力学模型是甲基三次溶液(b/v)和甲基三次溶液(v/v)自行制成的NPK肥料微胶囊。控制自定义释放控制释放NPK fertilizer aims来改进行星和其他减少环境污染的营养。这项研究旨在确定对乙酰氨基和果糖糖浓度的有效利用。另一种目的是确定NPK的特点和分析,即从微孔释放释放,同时计算释放动力学。NPK微capsules被混合液体排入chitosan solution,然后混和被注入糖浆溶液中。NPK fertilizer microcapsules被忽视,他们使用石油以太,跟随hexane和dried。结果表明,在不断增长的基特桑和谷氨酸解决方案的集中中,减少水吸收,以及我从微孔释放的fertilizer。相应释放的动态模型基于2值的第一个数值,而Higuchi模型是由1% (w/v) chitosan解决方案和5% (v/v) glutaraldehyde解决方案的微齿担心。
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