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Londono Zuluaga, Carolina.

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Fundamental and Applied Aspects of the Valorization of Seafood Waste: Water Remediation and Nanofiber Generation.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Fundamental and Applied Aspects of the Valorization of Seafood Waste: Water Remediation and Nanofiber Generation./
Author:	Londono Zuluaga, Carolina.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	144 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-07, Section: B.
Contained By:	Dissertations Abstracts International81-07B.
Subject:	Agricultural engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27731737
ISBN:	9781392480786

Fundamental and Applied Aspects of the Valorization of Seafood Waste: Water Remediation and Nanofiber Generation.
Londono Zuluaga, Carolina.

Fundamental and Applied Aspects of the Valorization of Seafood Waste: Water Remediation and Nanofiber Generation. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 144 p.

Source: Dissertations Abstracts International, Volume: 81-07, Section: B.

Thesis (Ph.D.)--North Carolina State University, 2019.

This item must not be sold to any third party vendors.

Crustacean shells have long been known for being an important source of chitin, a fibrous polysaccharide of N-acetylglucosamine chains that next to cellulose is the most abundant polysaccharide on earth. Chitin has been used as an enforcement material due to its mechanical strength, low thermal expansion coefficient, and high elasticity. In addition, chitin is the precursor for chitosan production via deacetylation. Despite the outstanding properties of these natural polymers, industrial scale production is expensive. For chitin, the price range is between 3-6 USD/kg while for chitosan it is between 15-20 USD/kg depending on the grade of purity and applications. Part of those high prices is the low yield in the production process due to minerals and protein being present in considerable quantities within marine exoskeletons. In this work, crustacean shell have been characterized and used for two purposes: Heavy metal ion removal from water and nanofiber production. Among the methods for metal ion removal, adsorption is one of the most reliable, robust, and hence prevalent. The technical feasibility and cost effectiveness of this process is highly related to the materials used. Crustacean shells, a waste from the seafood industry, have been identified as a viable material for the biosorption of lead, cadmium, chromium and zinc with removal of heavy metals up to 99%. This biomaterial is a low-cost alternative for water remediation. Alternatively, a mechanical treatment for chitin/chitosan production is proposed in order to totally or partially avoid the chemical treatment in the production of these biopolymers at the nano scale. In this study, production of nano-chitin, non-protein crustacean shells and non-mineral crustaceans shells was evaluated. Results showed the production of crustacean shell-based nanofibers and potential applications in blood clotting and co-grinding with cellulose. Further studies need to be completed in rheology of the co grinded materials as well as the formation of foam-like materials need to be characterized in terms of mechanical and thermal properties.

ISBN: 9781392480786Subjects--Topical Terms:

3168406
Agricultural engineering.
Subjects--Index Terms:

Crustacean shells

Fundamental and Applied Aspects of the Valorization of Seafood Waste: Water Remediation and Nanofiber Generation.
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500 $a Source: Dissertations Abstracts International, Volume: 81-07, Section: B.
500 $a Advisor: Salam, Abdus;Hubbe, Martin;Salmon, Sonja;Jameel, Hasan;Lucia, Lucian;Gonzalez, Ronalds.
502 $a Thesis (Ph.D.)--North Carolina State University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a Crustacean shells have long been known for being an important source of chitin, a fibrous polysaccharide of N-acetylglucosamine chains that next to cellulose is the most abundant polysaccharide on earth. Chitin has been used as an enforcement material due to its mechanical strength, low thermal expansion coefficient, and high elasticity. In addition, chitin is the precursor for chitosan production via deacetylation. Despite the outstanding properties of these natural polymers, industrial scale production is expensive. For chitin, the price range is between 3-6 USD/kg while for chitosan it is between 15-20 USD/kg depending on the grade of purity and applications. Part of those high prices is the low yield in the production process due to minerals and protein being present in considerable quantities within marine exoskeletons. In this work, crustacean shell have been characterized and used for two purposes: Heavy metal ion removal from water and nanofiber production. Among the methods for metal ion removal, adsorption is one of the most reliable, robust, and hence prevalent. The technical feasibility and cost effectiveness of this process is highly related to the materials used. Crustacean shells, a waste from the seafood industry, have been identified as a viable material for the biosorption of lead, cadmium, chromium and zinc with removal of heavy metals up to 99%. This biomaterial is a low-cost alternative for water remediation. Alternatively, a mechanical treatment for chitin/chitosan production is proposed in order to totally or partially avoid the chemical treatment in the production of these biopolymers at the nano scale. In this study, production of nano-chitin, non-protein crustacean shells and non-mineral crustaceans shells was evaluated. Results showed the production of crustacean shell-based nanofibers and potential applications in blood clotting and co-grinding with cellulose. Further studies need to be completed in rheology of the co grinded materials as well as the formation of foam-like materials need to be characterized in terms of mechanical and thermal properties.
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