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Effects of controlled release packaging impregnated with mixed tocopherols on oxidative degradation in MRE choice spread

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TitleInfo
Title
Effects of controlled release packaging impregnated with mixed tocopherols on oxidative degradation in MRE choice spread
Name (type = personal)
NamePart (type = family)
Ravi
NamePart (type = given)
Spurti
NamePart (type = date)
1986-
DisplayForm
Spurti Ravi
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Schaich
NamePart (type = given)
Karen M.
DisplayForm
Karen M. Schaich
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Yam
NamePart (type = given)
Kit L.
DisplayForm
Kit L. Yam
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
co-chair
Name (type = personal)
NamePart (type = family)
Frenkel
NamePart (type = given)
Chaim
DisplayForm
Chaim Frenkel
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2012
DateOther (qualifier = exact); (type = degree)
2012-05
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
MRE Choice Spread is a cheese spread variation containing large amounts of unsaturated lipids, which make lipid oxidation and development of rancidity the primary deterioration mode for this product. Lipid oxidation has traditionally been limited by adding antioxidants such as tocopherols directly to the food. However, the large amounts of antioxidant needed to provide the three year shelf life required by the military for MRE foods may cause phenol overloading, pro-oxidation, or browning. Controlled Release Packaging (CRP) addresses this problem by incorporating tocopherols in polymer films and releasing them into foods over time. Effectiveness of CRP in stabilizing model systems of pure unsaturated lipid has been demonstrated previously; this study was designed to extend testing of CRP technology to plant-scale applications that solve shelf life problems associated with a commercially processed real food system. Control polymer films of PP-LDPE and CRP films of PP-LDPE impregnated with mixed tocopherols at 3000 ppm were produced by extrusion at Berry Plastics Corporation (Chippewa Falls, Wisconsin). They were laminated, filled with Choice Spread, and sealed at Thermo Pac, LLC (Stone Mountain, Georgia). For comparison, half the control samples were flushed with nitrogen gas before sealing to provide an inert atmosphere inside the package. Choice Spread in the three kinds of packages were stored at 40°C for 15 weeks and at 60°C for 10 weeks for shelf life studies. Color (browning and fading) was quantified as L*a*b* values using a colorimeter. Lipid peroxides, conjugated dienes, and aldehydes were measured to follow the progress of lipid oxidation. Contrary to model system studies with oils and preliminary packaging studies with Choice Spread, control, nitrogen flushed and CRP packages showed similar browning and lipid oxidation during storage at both temperatures. This lack of apparent protection by CRP may be attributed to high levels of antioxidant (TBHQ) in Choice Spread that stabilize lipid oxidation during the storage period, overload the antioxidant system, and block both tocopherol access to active sites and protective effects of CRP. These results highlight the need to balance formulation and packaging and further customize Controlled Release Packaging to make it effective in stabilizing real food systems.
Subject (authority = RUETD)
Topic
Food Science
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_3883
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
x, 102 p. ill.
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Spurti Ravi
Subject (authority = ETD-LCSH)
Topic
Convenience foods
Subject (authority = ETD-LCSH)
Topic
Controlled release technology
Subject (authority = ETD-LCSH)
Topic
Food--Preservation
Subject (authority = ETD-LCSH)
Topic
Process cheese
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000065253
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3H130ZS
Genre (authority = ExL-Esploro)
ETD graduate
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Ravi
GivenName
Spurti
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2012-04-10 21:18:17
AssociatedEntity
Name
Spurti Ravi
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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26786816
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Checksum (METHOD = SHA1)
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