Production of chitin and chitosan from crustacean waste and their use as a food processing aid
Chitin is a polysaccharide found in abundance in the shell of crustaceans. In this study, chitin was first extracted from shrimp waste material previously demineralized, using proteolytic enzymes, i.e., chymotrypsin and papain. The conditions used for the deproteinization were optimized with respect...
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McGill University
1993
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ftcanadathes:oai:collectionscanada.gc.ca:QMM.26458 2023-05-15T17:54:32+02:00 Production of chitin and chitosan from crustacean waste and their use as a food processing aid Gagné, Nellie Simpson, Benjamin K. (advisor) Master of Science (Department of Food Science and Agricultural Chemistry.) 1993 application/pdf http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26458 en eng McGill University alephsysno: 001397491 proquestno: MQ37310 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26458 All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. Fishery processing industries -- By-products Shrimp industry -- By-products Chitin Chitosan Electronic Thesis or Dissertation 1993 ftcanadathes 2014-02-16T01:00:20Z Chitin is a polysaccharide found in abundance in the shell of crustaceans. In this study, chitin was first extracted from shrimp waste material previously demineralized, using proteolytic enzymes, i.e., chymotrypsin and papain. The conditions used for the deproteinization were optimized with respect to 3 factors, viz., pH, temperature, and enzyme to waste (E/W) ratio, using response surface methodology (RSM). In a second part of the study, chitosan was prepared from chitin by partial deacetylation and its capacity to preserve whole and headless fresh shrimps was evaluated. The shrimps (Pandalus borealis) were dipped in chitosan (1 and 2% w:v), and stored on ice. Chemical indicators such as pH, drip loss, total volatile bases (TVB), nucleotide degradation, and sensory indicators of appearance (including melanosis) and odor, as well as total microbial counts were monitored during 20 days. As a third and final part, the antimicrobial properties of chitosan were evaluated using several microorganisms implicated in food spoilage and/or food poisoning outbreaks, especially those associated with fish and seafood products. Chitosan prepared from crab offal and used in the previous study on shrimp preservation was compared with commercially available chitosan from Sigma Chemical Co. (St-Louis, MO). (Abstract shortened by UMI.) Thesis Pandalus borealis Theses Canada/Thèses Canada (Library and Archives Canada) St. Louis ENVELOPE(-67.496,-67.496,-67.132,-67.132) |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
Fishery processing industries -- By-products Shrimp industry -- By-products Chitin Chitosan |
spellingShingle |
Fishery processing industries -- By-products Shrimp industry -- By-products Chitin Chitosan Gagné, Nellie Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
topic_facet |
Fishery processing industries -- By-products Shrimp industry -- By-products Chitin Chitosan |
description |
Chitin is a polysaccharide found in abundance in the shell of crustaceans. In this study, chitin was first extracted from shrimp waste material previously demineralized, using proteolytic enzymes, i.e., chymotrypsin and papain. The conditions used for the deproteinization were optimized with respect to 3 factors, viz., pH, temperature, and enzyme to waste (E/W) ratio, using response surface methodology (RSM). In a second part of the study, chitosan was prepared from chitin by partial deacetylation and its capacity to preserve whole and headless fresh shrimps was evaluated. The shrimps (Pandalus borealis) were dipped in chitosan (1 and 2% w:v), and stored on ice. Chemical indicators such as pH, drip loss, total volatile bases (TVB), nucleotide degradation, and sensory indicators of appearance (including melanosis) and odor, as well as total microbial counts were monitored during 20 days. As a third and final part, the antimicrobial properties of chitosan were evaluated using several microorganisms implicated in food spoilage and/or food poisoning outbreaks, especially those associated with fish and seafood products. Chitosan prepared from crab offal and used in the previous study on shrimp preservation was compared with commercially available chitosan from Sigma Chemical Co. (St-Louis, MO). (Abstract shortened by UMI.) |
author2 |
Simpson, Benjamin K. (advisor) |
format |
Thesis |
author |
Gagné, Nellie |
author_facet |
Gagné, Nellie |
author_sort |
Gagné, Nellie |
title |
Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
title_short |
Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
title_full |
Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
title_fullStr |
Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
title_full_unstemmed |
Production of chitin and chitosan from crustacean waste and their use as a food processing aid |
title_sort |
production of chitin and chitosan from crustacean waste and their use as a food processing aid |
publisher |
McGill University |
publishDate |
1993 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26458 |
op_coverage |
Master of Science (Department of Food Science and Agricultural Chemistry.) |
long_lat |
ENVELOPE(-67.496,-67.496,-67.132,-67.132) |
geographic |
St. Louis |
geographic_facet |
St. Louis |
genre |
Pandalus borealis |
genre_facet |
Pandalus borealis |
op_relation |
alephsysno: 001397491 proquestno: MQ37310 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26458 |
op_rights |
All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
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1766162312159297536 |