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Development of in-transit ripening technology for delivering ready-to-eat pears
Descriptive
TitleInfo
Title
Development of in-transit ripening technology for delivering ready-to-eat pears
Name
(type = personal)
NamePart
(type = family)
Xu
NamePart
(type = given)
Chenyi
NamePart
(type = date)
1992-
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Chenyi Xu
Role
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(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Yam
NamePart
(type = given)
Kit L.
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Kit L. Yam
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Advisory Committee
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chair
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(type = personal)
NamePart
(type = family)
Mir
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(type = given)
Nazir
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Nazir Mir
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Gianfagna
NamePart
(type = given)
Thomas
DisplayForm
Thomas Gianfagna
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
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school
TypeOfResource
Text
Genre
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theses
OriginInfo
DateCreated
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2017
DateOther
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2017-05
CopyrightDate
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2017
Place
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xx
Language
LanguageTerm
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(type = code)
eng
Abstract
(type = abstract)
Non-availability of year-around fully-ripened ready-to-eat pears at retail level has become one of major factors that limit fresh pear consumption in U.S. market in recent years. The objective of this project is to test the feasibility of developing a ripening technology that can have pear fully-ripened when they are delivered to distribution center. Ripening is triggered by ethylene encapsulated in α-cyclodextrin, packaged in sachet and control released by moisture from respiration of pears, under refrigeration temperature during transportation. The objective is composed of three sub-objectives: (1) Ethylene encapsulation in α-cyclodextrin. (2) Release study of sachet (PVA film and Tyvek® paper) packaged encapsulated complex with RH as trigger (70%, 80% and 90%). (3) Biological evaluation of efficacy of ethylene released from sachet system. Ethylene encapsulation was controlled by encapsulation duration time and headspace ethylene concentration. Under 1×106 ppm headspace concentration, ethylene was encapsulated in α-cyclodextrin with 2.1% inclusion ratio within 20hrs. Headspace ethylene concentration and duration time did not change inclusion ratio of encapsulated complex, remaining around 2.1%. However, higher headspace ethylene concentration and longer duration time would increase yield of encapsulated complex. PVA film and Tyvek® paper were used as sachet materials to control release ethylene from encapsulated complex at 4℃ with RH as trigger. Release of ethylene from Tyvek® sachet system was faster than from PVA sachet system. Under 90% RH, it took around 72hrs to completely release ethylene from PVA sachet system and 48hrs to reach complete release from Tyvek® sachet system. Unripened pears were used to evaluate biological efficacy of ethylene released from encapsulated complex packaged in Tyvek® sachet. After 10 days of ethylene treatment from sachet system along with stored at 4℃, firmness of pears decreased to 4.2 lbf, within the range of firmness of pears with good eating quality, from 18 lbf. While the firmness of those pears without ethylene treatment had only decreased to 10.3 lbf, which were still unripened. In conclusion, it is technically feasible to develop an in-transit ripening technology to provide ready-to-eat pears when they arrive at the distribution center. RH from the respiration of pears was able to trigger the release of ethylene to induce their ripening along with low temperature during transportation.
Subject
(authority = RUETD)
Topic
Food Science
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
Identifier
ETD_8038
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xii, 63 p. : ill.)
Note
(type = degree)
M.A.
Note
(type = bibliography)
Includes bibliographical references
Subject
(authority = ETD-LCSH)
Topic
Fruit--Ripening
Subject
(authority = ETD-LCSH)
Topic
Pears--Transportation
Note
(type = statement of responsibility)
by Chenyi Xu
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
Location
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3V127RQ
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
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The author owns the copyright to this work.
RightsHolder
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Name
FamilyName
Xu
GivenName
Chenyi
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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2017-04-14 11:49:00
AssociatedEntity
Name
Chenyi Xu
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.
RightsEvent
DateTime
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2017-05-31
DateTime
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2018-05-31
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after May 31st, 2018.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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RULTechMD
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windows xp
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