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Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate

Plastic pollution has become one of the most concerning problems globally due to excessive use of one-time use plastics. However, bioplastics could be the answer to help combat this problem as they are readily biodegradable. Development of bioplastics was done by mixing seaweed biomass into distille...

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Main Authors:	Eunice Lua Hanry, Noumie Surugau
Format:	Article
Language:	English English
Published:	Research Square 2023
Subjects:	TA401-492 Materials of engineering and construction. Mechanics of materials TP1-1185 Chemical technology
Online Access:	https://eprints.ums.edu.my/id/eprint/38182/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38182/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/38182/ https://doi.org/10.21203/rs.3.rs-2754347/v1
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spelling	my.ums.eprints.381822024-02-08T08:20:20Z https://eprints.ums.edu.my/id/eprint/38182/ Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate Eunice Lua Hanry Noumie Surugau TA401-492 Materials of engineering and construction. Mechanics of materials TP1-1185 Chemical technology Plastic pollution has become one of the most concerning problems globally due to excessive use of one-time use plastics. However, bioplastics could be the answer to help combat this problem as they are readily biodegradable. Development of bioplastics was done by mixing seaweed biomass into distilled water at specific ratio, using glycerol as plasticizer. Bioplastics were developed at the ratio of 100:0, 75:25, 50:50, 25:75, and 0:100 K. alvarezii to commercial sodium alginate ratio. Characterization was done based on their appearance, mechanical, thermal and permeability properties, and biodegradability. Resulted data for their appearance showed that when more K. alvarezii was in the mixture there were more colour differences in comparison to white background and the same trend for the opacity due to the natural colour of whole K. alvarezii. As for their mechanical properties, tensile strength of the bioplastics decreased from 100:0 ratio to 0:100 ratio at 7.91 ± 0.45 MPa (100:0), 6.78 ± 0.31 MPa (75:25), 5.20 ± 0.37 MPa (50:50), 4.13 ± 0.17 MPa (25:75) and 3.76 ± 0.14 MPa (0:100), respectively. Same goes for their elastic modulus at 20.93 ± 0.61 MPa (100:0), 16.47 ± 0.99 MPa (75:25), 11.42 ± 0.53 MPa (50:50), 8.78±0.45 MPa (25:75) and 6.65±0.32 MPa (0:100), respectively. This shows that the addition of alginate enhances the elasticity but decreases tensile strength. As a conclusion, developed seaweed-based bioplastics resulted different properties at different mixture ratio show potential to be incorporated into the market as they are a greener option to fight single-use plastic wrappings such as saran wrap, beverages and food additive packets. Research Square 2023 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/38182/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/38182/2/FULL%20TEXT.pdf Eunice Lua Hanry and Noumie Surugau (2023) Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate. Research Square. pp. 1-14. ISSN 2693-5015 https://doi.org/10.21203/rs.3.rs-2754347/v1
institution	Universiti Malaysia Sabah
building	UMS Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sabah
content_source	UMS Institutional Repository
url_provider	http://eprints.ums.edu.my/
language	English English
topic	TA401-492 Materials of engineering and construction. Mechanics of materials TP1-1185 Chemical technology
spellingShingle	TA401-492 Materials of engineering and construction. Mechanics of materials TP1-1185 Chemical technology Eunice Lua Hanry Noumie Surugau Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
description	Plastic pollution has become one of the most concerning problems globally due to excessive use of one-time use plastics. However, bioplastics could be the answer to help combat this problem as they are readily biodegradable. Development of bioplastics was done by mixing seaweed biomass into distilled water at specific ratio, using glycerol as plasticizer. Bioplastics were developed at the ratio of 100:0, 75:25, 50:50, 25:75, and 0:100 K. alvarezii to commercial sodium alginate ratio. Characterization was done based on their appearance, mechanical, thermal and permeability properties, and biodegradability. Resulted data for their appearance showed that when more K. alvarezii was in the mixture there were more colour differences in comparison to white background and the same trend for the opacity due to the natural colour of whole K. alvarezii. As for their mechanical properties, tensile strength of the bioplastics decreased from 100:0 ratio to 0:100 ratio at 7.91 ± 0.45 MPa (100:0), 6.78 ± 0.31 MPa (75:25), 5.20 ± 0.37 MPa (50:50), 4.13 ± 0.17 MPa (25:75) and 3.76 ± 0.14 MPa (0:100), respectively. Same goes for their elastic modulus at 20.93 ± 0.61 MPa (100:0), 16.47 ± 0.99 MPa (75:25), 11.42 ± 0.53 MPa (50:50), 8.78±0.45 MPa (25:75) and 6.65±0.32 MPa (0:100), respectively. This shows that the addition of alginate enhances the elasticity but decreases tensile strength. As a conclusion, developed seaweed-based bioplastics resulted different properties at different mixture ratio show potential to be incorporated into the market as they are a greener option to fight single-use plastic wrappings such as saran wrap, beverages and food additive packets.
format	Article
author	Eunice Lua Hanry Noumie Surugau
author_facet	Eunice Lua Hanry Noumie Surugau
author_sort	Eunice Lua Hanry
title	Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
title_short	Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
title_full	Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
title_fullStr	Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
title_full_unstemmed	Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate
title_sort	characterization of bioplastics developed from whole seaweed biomass (kappaphycus sp.) added with commercial sodium alginate
publisher	Research Square
publishDate	2023
url	https://eprints.ums.edu.my/id/eprint/38182/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38182/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/38182/ https://doi.org/10.21203/rs.3.rs-2754347/v1
_version_	1792152907465883648
score	13.211869

Characterization of bioplastics developed from whole seaweed biomass (Kappaphycus sp.) added with commercial sodium alginate

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