Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method

A new encapsulation of NPK fertilizer hydrogel granules made from glutaraldehyde crosslinked chitosan has been successfully fabricated. This designed fertilizer was aimed to maximize the fertilizing process in the soil, as the environmental pollution affected by the excess release of the nutrients c...

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Autores principales:	Adhitasari Suratman, Dwi Ratih Purwaningsih, Eko Sri Kunarti, Agus Kuncaka
Formato:	article
Lenguaje:	EN
Publicado:	Department of Chemistry, Universitas Gadjah Mada 2020
Materias:	hydrogel controlled release fertilizer freeze-drying chitosan glutaraldehyde Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/20e3185c7c15465b83b4ad7244d4fd03
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spelling	oai:doaj.org-article:20e3185c7c15465b83b4ad7244d4fd032021-12-02T16:11:23ZControlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method1411-94202460-157810.22146/ijc.55133https://doaj.org/article/20e3185c7c15465b83b4ad7244d4fd032020-09-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/55133https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578A new encapsulation of NPK fertilizer hydrogel granules made from glutaraldehyde crosslinked chitosan has been successfully fabricated. This designed fertilizer was aimed to maximize the fertilizing process in the soil, as the environmental pollution affected by the excess release of the nutrients can be prevented. The granule was prepared from biodegradable chitosan crosslinked with glutaraldehyde by applying a method of air and freeze-drying. The release test proved that this designed fertilizer showed a good performance as a Controlled Release Fertilizer (CRF) in which the hydrogel granules could absorb and deposit large amounts of NPK. Later on, they could also release large amounts of NPK as well, unlike several types of CRFs. The release percentage of NPK out of the granules tended to decrease with an increase of pH at a range close to the average pH of the soil, which is neutral to base. Comparing two methods, the freeze-drying technique, which yields a bigger pore size, showed a higher release percentage than air-drying. The release kinetics of the granules followed the Korsmeyer-Peppas model.Adhitasari SuratmanDwi Ratih PurwaningsihEko Sri KunartiAgus KuncakaDepartment of Chemistry, Universitas Gadjah Madaarticlehydrogelcontrolled release fertilizerfreeze-dryingchitosanglutaraldehydeChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 20, Iss 6, Pp 1414-1421 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrogel controlled release fertilizer freeze-drying chitosan glutaraldehyde Chemistry QD1-999
spellingShingle	hydrogel controlled release fertilizer freeze-drying chitosan glutaraldehyde Chemistry QD1-999 Adhitasari Suratman Dwi Ratih Purwaningsih Eko Sri Kunarti Agus Kuncaka Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
description	A new encapsulation of NPK fertilizer hydrogel granules made from glutaraldehyde crosslinked chitosan has been successfully fabricated. This designed fertilizer was aimed to maximize the fertilizing process in the soil, as the environmental pollution affected by the excess release of the nutrients can be prevented. The granule was prepared from biodegradable chitosan crosslinked with glutaraldehyde by applying a method of air and freeze-drying. The release test proved that this designed fertilizer showed a good performance as a Controlled Release Fertilizer (CRF) in which the hydrogel granules could absorb and deposit large amounts of NPK. Later on, they could also release large amounts of NPK as well, unlike several types of CRFs. The release percentage of NPK out of the granules tended to decrease with an increase of pH at a range close to the average pH of the soil, which is neutral to base. Comparing two methods, the freeze-drying technique, which yields a bigger pore size, showed a higher release percentage than air-drying. The release kinetics of the granules followed the Korsmeyer-Peppas model.
format	article
author	Adhitasari Suratman Dwi Ratih Purwaningsih Eko Sri Kunarti Agus Kuncaka
author_facet	Adhitasari Suratman Dwi Ratih Purwaningsih Eko Sri Kunarti Agus Kuncaka
author_sort	Adhitasari Suratman
title	Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
title_short	Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
title_full	Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
title_fullStr	Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
title_full_unstemmed	Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method
title_sort	controlled release fertilizer encapsulated by glutaraldehyde-crosslinked chitosan using freeze-drying method
publisher	Department of Chemistry, Universitas Gadjah Mada
publishDate	2020
url	https://doaj.org/article/20e3185c7c15465b83b4ad7244d4fd03
work_keys_str_mv	AT adhitasarisuratman controlledreleasefertilizerencapsulatedbyglutaraldehydecrosslinkedchitosanusingfreezedryingmethod AT dwiratihpurwaningsih controlledreleasefertilizerencapsulatedbyglutaraldehydecrosslinkedchitosanusingfreezedryingmethod AT ekosrikunarti controlledreleasefertilizerencapsulatedbyglutaraldehydecrosslinkedchitosanusingfreezedryingmethod AT aguskuncaka controlledreleasefertilizerencapsulatedbyglutaraldehydecrosslinkedchitosanusingfreezedryingmethod
_version_	1718384395820204032

Controlled Release Fertilizer Encapsulated by Glutaraldehyde-Crosslinked Chitosan Using Freeze-Drying Method

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