Coated npk fertilizer based on citric acid-crosslinked chitosan/alginate encapsulant

Vince St D. Mesias; Anne Bernadette S. Agu; Precious Japheth L. Benablo; Chun Hu Chen; David P. Penaloza

doi:10.12911/22998993/113418

Coated npk fertilizer based on citric acid-crosslinked chitosan/alginate encapsulant

Vince St D. Mesias, Anne Bernadette S. Agu, Precious Japheth L. Benablo, Chun Hu Chen, David P. Penaloza^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

22 Citations (Scopus)

Abstract

A coated nitrogen-phosphorus-potassium (NPK) fertilizer was prepared via crosslinking chitosan and alginate using citric acid. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), particle size analysis, and zeta potential measurement showed the successful crosslinking, appropriate size, and colloidal stability of the coated NPK fertilizer. The encapsulation capability of the crosslinked chitosan/alginate (Chi/Alg) was studied using fluorescence spectroscopy and NPK analysis. The release behavior studies under various pH conditions showed that Chi/Alg NPK conformed to the standards of controlled release fertilizer with a maximum release rate of 40% for 30 days. The investigation of the release mechanism using Korsemeyer-Peppas mathematical model showed that the release of nutrients is governed by both coating material relaxation and diffusion process.

Original language	English
Article number	3418
Pages (from-to)	1-12
Number of pages	12
Journal	Journal of Ecological Engineering
Volume	20
Issue number	11
DOIs	https://doi.org/10.12911/22998993/113418
Publication status	Published - 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Polish Society of Ecological Engineering (PTIE).

Keywords

Controlled release
Crosslinking
Encapsulation
NPK fertilizer

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10.12911/22998993/113418

Cite this

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title = "Coated npk fertilizer based on citric acid-crosslinked chitosan/alginate encapsulant",

abstract = "A coated nitrogen-phosphorus-potassium (NPK) fertilizer was prepared via crosslinking chitosan and alginate using citric acid. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), particle size analysis, and zeta potential measurement showed the successful crosslinking, appropriate size, and colloidal stability of the coated NPK fertilizer. The encapsulation capability of the crosslinked chitosan/alginate (Chi/Alg) was studied using fluorescence spectroscopy and NPK analysis. The release behavior studies under various pH conditions showed that Chi/Alg NPK conformed to the standards of controlled release fertilizer with a maximum release rate of 40\% for 30 days. The investigation of the release mechanism using Korsemeyer-Peppas mathematical model showed that the release of nutrients is governed by both coating material relaxation and diffusion process.",

keywords = "Controlled release, Crosslinking, Encapsulation, NPK fertilizer",

author = "Mesias, \{Vince St D.\} and Agu, \{Anne Bernadette S.\} and Benablo, \{Precious Japheth L.\} and Chen, \{Chun Hu\} and Penaloza, \{David P.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Polish Society of Ecological Engineering (PTIE).",

year = "2019",

doi = "10.12911/22998993/113418",

language = "English",

volume = "20",

pages = "1--12",

journal = "Journal of Ecological Engineering",

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TY - JOUR

T1 - Coated npk fertilizer based on citric acid-crosslinked chitosan/alginate encapsulant

AU - Mesias, Vince St D.

AU - Agu, Anne Bernadette S.

AU - Benablo, Precious Japheth L.

AU - Chen, Chun Hu

AU - Penaloza, David P.

PY - 2019

Y1 - 2019

N2 - A coated nitrogen-phosphorus-potassium (NPK) fertilizer was prepared via crosslinking chitosan and alginate using citric acid. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), particle size analysis, and zeta potential measurement showed the successful crosslinking, appropriate size, and colloidal stability of the coated NPK fertilizer. The encapsulation capability of the crosslinked chitosan/alginate (Chi/Alg) was studied using fluorescence spectroscopy and NPK analysis. The release behavior studies under various pH conditions showed that Chi/Alg NPK conformed to the standards of controlled release fertilizer with a maximum release rate of 40% for 30 days. The investigation of the release mechanism using Korsemeyer-Peppas mathematical model showed that the release of nutrients is governed by both coating material relaxation and diffusion process.

AB - A coated nitrogen-phosphorus-potassium (NPK) fertilizer was prepared via crosslinking chitosan and alginate using citric acid. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), particle size analysis, and zeta potential measurement showed the successful crosslinking, appropriate size, and colloidal stability of the coated NPK fertilizer. The encapsulation capability of the crosslinked chitosan/alginate (Chi/Alg) was studied using fluorescence spectroscopy and NPK analysis. The release behavior studies under various pH conditions showed that Chi/Alg NPK conformed to the standards of controlled release fertilizer with a maximum release rate of 40% for 30 days. The investigation of the release mechanism using Korsemeyer-Peppas mathematical model showed that the release of nutrients is governed by both coating material relaxation and diffusion process.

KW - Controlled release

KW - Crosslinking

KW - Encapsulation

KW - NPK fertilizer

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000503821300001

UR - https://openalex.org/W2985701272

UR - https://www.scopus.com/pages/publications/85083260380

U2 - 10.12911/22998993/113418

DO - 10.12911/22998993/113418

M3 - Journal Article

SN - 2299-8993

VL - 20

SP - 1

EP - 12

JO - Journal of Ecological Engineering

JF - Journal of Ecological Engineering

IS - 11

M1 - 3418

ER -

Coated npk fertilizer based on citric acid-crosslinked chitosan/alginate encapsulant

Abstract

Bibliographical note

Keywords

Access to Document

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