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Reusable Light-Activated Antimicrobi...

Utah State University., Nutrition and Food Science.

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Reusable Light-Activated Antimicrobial Materials Prepared with Food Ingredients.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Reusable Light-Activated Antimicrobial Materials Prepared with Food Ingredients./
Author:	Gagon, Andrew T.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	92 p.
Notes:	Source: Masters Abstracts International, Volume: 82-04.
Contained By:	Masters Abstracts International82-04.
Subject:	Nutrition. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28095489
ISBN:	9798672181189

Reusable Light-Activated Antimicrobial Materials Prepared with Food Ingredients.
Gagon, Andrew T.

Reusable Light-Activated Antimicrobial Materials Prepared with Food Ingredients. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 92 p.

Source: Masters Abstracts International, Volume: 82-04.

Thesis (M.S.)--Utah State University, 2020.

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

Microbial contamination and proliferation in food processing, distribution and storage continues to be a real risk in spite the wide variety of food processing and preservation techniques available. Some of these techniques (such as heat treatments and the use of chemical preservatives) may require substantial amounts of energy and their effects in the general population and the environment may be harmful. This has generated an interest over alternative methods of food preservation. The use of reusable light-activated materials may represent an effective approach. In this study, a polypropylene plastic was modified with either zein, which is found in corn, or chitosan, which can be found in the shell of crustacea, and tested it against E. coli K12 while also being exposed to UV-A light. Both materials displayed abilities to inactivate the bacteria by up to 94% over 10 cycles (1 cycle including contact with aqueous E. coli K12 and 30 min of UV-A light). Analysis of the surface through microscopic and infrared spectroscopy showed minor change in the materials. These materials have shown promise in inhibiting growth of bacteria, particularly in aqueous environments.

ISBN: 9798672181189Subjects--Topical Terms:

517777
Nutrition.
Subjects--Index Terms:

Chitosan

Reusable Light-Activated Antimicrobial Materials Prepared with Food Ingredients.
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500 $a Source: Masters Abstracts International, Volume: 82-04.
500 $a Advisor: Bastarrachea, Luis J.
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506 $a This item must not be sold to any third party vendors.
520 $a Microbial contamination and proliferation in food processing, distribution and storage continues to be a real risk in spite the wide variety of food processing and preservation techniques available. Some of these techniques (such as heat treatments and the use of chemical preservatives) may require substantial amounts of energy and their effects in the general population and the environment may be harmful. This has generated an interest over alternative methods of food preservation. The use of reusable light-activated materials may represent an effective approach. In this study, a polypropylene plastic was modified with either zein, which is found in corn, or chitosan, which can be found in the shell of crustacea, and tested it against E. coli K12 while also being exposed to UV-A light. Both materials displayed abilities to inactivate the bacteria by up to 94% over 10 cycles (1 cycle including contact with aqueous E. coli K12 and 30 min of UV-A light). Analysis of the surface through microscopic and infrared spectroscopy showed minor change in the materials. These materials have shown promise in inhibiting growth of bacteria, particularly in aqueous environments.
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653 $a Reusable antimicrobial materials
653 $a UV-A light
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653 $a Microbial contamination
653 $a Microbial proliferation
653 $a Food processing
653 $a Food storage
653 $a Food preservation techniques
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