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Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites

Starch high biodegradation is a limitation for commercialization of starch derived slow release fertilizers (SRFs). To reduce starch biodegradation, kraft lignin (5�20) was tested for reducing the starch biodegradability in urea crosslinked starch (UcS) films, reported as here as a SRF. Biodegrada...

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التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Majeed, Z., Mansor, N., Ajab, Z., Man, Z., Sarwono, A.
التنسيق: مقال
منشور في: Elsevier Ltd 2018
الوصول للمادة أونلاين:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039425860&doi=10.1016%2fj.polymertesting.2017.12.011&partnerID=40&md5=e50d4523850479d3ce5f3a5a99ce1250
http://eprints.utp.edu.my/21818/
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spelling my.utp.eprints.218182018-08-01T02:03:14Z Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites Majeed, Z. Mansor, N. Ajab, Z. Man, Z. Sarwono, A. Starch high biodegradation is a limitation for commercialization of starch derived slow release fertilizers (SRFs). To reduce starch biodegradation, kraft lignin (5�20) was tested for reducing the starch biodegradability in urea crosslinked starch (UcS) films, reported as here as a SRF. Biodegradability tests were conducted under anaerobic soil microcosm for period of 60 days. Fourier transformed infrared spectroscopy results showed an absence of peak at 1776 cm�1 (pertained to oxidation of starch) in biodegraded lignin reinforced films. Thermogravimetric analysis of lignin reinforced films showed deceleration in the biodegradability rates, which were clearly evident from increase in the decomposition temperature at 5 weight loss, �67.0 °C and at maximum weight loss, �13.6 °C. Besides, char contents were increased, �11.3. Molecular weight distribution indicated the lignin's effect on conservation the molecular weight and polydispersity of starch in films. Lignin role in protecting the starch morphology was confirmed through optical microscopy results, which showed a less change for feret mean and particle area of starch particles. Further, lignin increased average roughness, �1.04 to 4.76 times for biodegraded films, possibly due to accumulation of lignin after loss of starch in films. Further, this study concluded that lignin influenced effectively the reduction in starch biodegradability under anaerobic soil microcosm. Thus, lignin could be used in urea crosslinked starch and other similar films, for controlling the starch biodegradability and improving the SRF formulations. © 2017 Elsevier Ltd Elsevier Ltd 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039425860&doi=10.1016%2fj.polymertesting.2017.12.011&partnerID=40&md5=e50d4523850479d3ce5f3a5a99ce1250 Majeed, Z. and Mansor, N. and Ajab, Z. and Man, Z. and Sarwono, A. (2018) Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites. Polymer Testing, 65 . pp. 398-406. http://eprints.utp.edu.my/21818/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Starch high biodegradation is a limitation for commercialization of starch derived slow release fertilizers (SRFs). To reduce starch biodegradation, kraft lignin (5�20) was tested for reducing the starch biodegradability in urea crosslinked starch (UcS) films, reported as here as a SRF. Biodegradability tests were conducted under anaerobic soil microcosm for period of 60 days. Fourier transformed infrared spectroscopy results showed an absence of peak at 1776 cm�1 (pertained to oxidation of starch) in biodegraded lignin reinforced films. Thermogravimetric analysis of lignin reinforced films showed deceleration in the biodegradability rates, which were clearly evident from increase in the decomposition temperature at 5 weight loss, �67.0 °C and at maximum weight loss, �13.6 °C. Besides, char contents were increased, �11.3. Molecular weight distribution indicated the lignin's effect on conservation the molecular weight and polydispersity of starch in films. Lignin role in protecting the starch morphology was confirmed through optical microscopy results, which showed a less change for feret mean and particle area of starch particles. Further, lignin increased average roughness, �1.04 to 4.76 times for biodegraded films, possibly due to accumulation of lignin after loss of starch in films. Further, this study concluded that lignin influenced effectively the reduction in starch biodegradability under anaerobic soil microcosm. Thus, lignin could be used in urea crosslinked starch and other similar films, for controlling the starch biodegradability and improving the SRF formulations. © 2017 Elsevier Ltd
format Article
author Majeed, Z.
Mansor, N.
Ajab, Z.
Man, Z.
Sarwono, A.
spellingShingle Majeed, Z.
Mansor, N.
Ajab, Z.
Man, Z.
Sarwono, A.
Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
author_facet Majeed, Z.
Mansor, N.
Ajab, Z.
Man, Z.
Sarwono, A.
author_sort Majeed, Z.
title Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
title_short Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
title_full Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
title_fullStr Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
title_full_unstemmed Kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
title_sort kraft lignin ameliorates degradation resistance of starch in urea delivery biocomposites
publisher Elsevier Ltd
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039425860&doi=10.1016%2fj.polymertesting.2017.12.011&partnerID=40&md5=e50d4523850479d3ce5f3a5a99ce1250
http://eprints.utp.edu.my/21818/
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