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Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)

Petroleum-based plastics are mass produced to meet customers’ demand due to their low cost and versatility. However, plastic waste has become a serious environmental problem. Hence, degradable plastics from renewable sources (e.g., biomass) are now trending for their “green” properties. In this pape...

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Main Authors: Eunice Lua Hanry, Loumi @ Noumie Surugau
Format: Article
Language:English
English
Published: Penerbit Akademia Baru 2020
Subjects:
Q Science (General)
QK Botany
Online Access:https://eprints.ums.edu.my/id/eprint/30166/1/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%29.pdf
https://eprints.ums.edu.my/id/eprint/30166/2/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%291.pdf
https://eprints.ums.edu.my/id/eprint/30166/
https://akademiabaru.com/submit/index.php/arfmts/article/view/1482/328
https://doi.org/10.37934/arfmts.76.2.99110OpenAccess
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spelling my.ums.eprints.301662021-07-31T01:25:27Z https://eprints.ums.edu.my/id/eprint/30166/ Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.) Eunice Lua Hanry Loumi @ Noumie Surugau Q Science (General) QK Botany Petroleum-based plastics are mass produced to meet customers’ demand due to their low cost and versatility. However, plastic waste has become a serious environmental problem. Hence, degradable plastics from renewable sources (e.g., biomass) are now trending for their “green” properties. In this paper, properties of biofilms made from whole seaweed (WS), Kappaphycussp.and pure kappa-carrageenan powder (PC) were compared. Glycerol, as plasticizer, was added at differing amounts (1%, 2%, 3%, 4% and 5%, v/v) and their appearance, physical and mechanical properties, solubility, and biodegradability were studied. As results, for colour difference and transparency, WS-1% showed higher ΔE at 17.09 ± 0.85 with highest opacity at 13.73 mm-1and least ΔE was at 2.73 ± 0.13for PC-5% with opacity at 0.49 mm-1. For mechanical properties, PC-1% has the highest tensile strength and elastic modulus at 26.63 ± 2.18 MPa and 253.53 ± 19.43 MPa, respectively, whereas WS-5% has the lowest at 0.71 ± 0.15 MPa and 2.47 ± 0.44MPa, respectively. As for biodegradability, by the first week, WS-5% lost 80% of its weight and PC-1% only lost 3%. Overall, PC biofilms showed better quality in terms of mechanical and physical properties but WS biofilms were faster to degrade and dissolve in water. Glycerol concentration affects most of the properties except for mechanical properties for WS and solubility of both. This study suggests that PC may be a better base material for stronger biofilms but WS are a better choice from environmental and cost aspects. Penerbit Akademia Baru 2020 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/30166/1/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%29.pdf text en https://eprints.ums.edu.my/id/eprint/30166/2/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%291.pdf Eunice Lua Hanry and Loumi @ Noumie Surugau (2020) Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.). Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 76. pp. 99-110. ISSN 2289-7879 https://akademiabaru.com/submit/index.php/arfmts/article/view/1482/328 https://doi.org/10.37934/arfmts.76.2.99110OpenAccess
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 Q Science (General)
QK Botany
spellingShingle Q Science (General)
QK Botany
Eunice Lua Hanry
Loumi @ Noumie Surugau
Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
description Petroleum-based plastics are mass produced to meet customers’ demand due to their low cost and versatility. However, plastic waste has become a serious environmental problem. Hence, degradable plastics from renewable sources (e.g., biomass) are now trending for their “green” properties. In this paper, properties of biofilms made from whole seaweed (WS), Kappaphycussp.and pure kappa-carrageenan powder (PC) were compared. Glycerol, as plasticizer, was added at differing amounts (1%, 2%, 3%, 4% and 5%, v/v) and their appearance, physical and mechanical properties, solubility, and biodegradability were studied. As results, for colour difference and transparency, WS-1% showed higher ΔE at 17.09 ± 0.85 with highest opacity at 13.73 mm-1and least ΔE was at 2.73 ± 0.13for PC-5% with opacity at 0.49 mm-1. For mechanical properties, PC-1% has the highest tensile strength and elastic modulus at 26.63 ± 2.18 MPa and 253.53 ± 19.43 MPa, respectively, whereas WS-5% has the lowest at 0.71 ± 0.15 MPa and 2.47 ± 0.44MPa, respectively. As for biodegradability, by the first week, WS-5% lost 80% of its weight and PC-1% only lost 3%. Overall, PC biofilms showed better quality in terms of mechanical and physical properties but WS biofilms were faster to degrade and dissolve in water. Glycerol concentration affects most of the properties except for mechanical properties for WS and solubility of both. This study suggests that PC may be a better base material for stronger biofilms but WS are a better choice from environmental and cost aspects.
format Article
author Eunice Lua Hanry
Loumi @ Noumie Surugau
author_facet Eunice Lua Hanry
Loumi @ Noumie Surugau
author_sort Eunice Lua Hanry
title Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
title_short Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
title_full Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
title_fullStr Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
title_full_unstemmed Characteristics and Properties of Biofilms Made fromPure Carrageenan Powder and Whole Seaweed (Kappaphycus sp.)
title_sort characteristics and properties of biofilms made frompure carrageenan powder and whole seaweed (kappaphycus sp.)
publisher Penerbit Akademia Baru
publishDate 2020
url https://eprints.ums.edu.my/id/eprint/30166/1/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%29.pdf
https://eprints.ums.edu.my/id/eprint/30166/2/Characteristics%20and%20Properties%20of%20Biofilms%20Made%20fromPure%20Carrageenan%20Powder%20and%20Whole%20Seaweed%20%28Kappaphycus%20sp.%291.pdf
https://eprints.ums.edu.my/id/eprint/30166/
https://akademiabaru.com/submit/index.php/arfmts/article/view/1482/328
https://doi.org/10.37934/arfmts.76.2.99110OpenAccess
_version_ 1760230727083884544
score 13.211869

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