The potential role of nitrite-embedded film technology in extending the color stability and shelf life of alternatively-cured meat products

dc.contributor.advisor Joseph G. Sebranek
dc.contributor.author Cropp, Michael
dc.contributor.department Animal Science
dc.date 2019-03-26T17:48:38.000
dc.date.accessioned 2020-06-30T03:13:42Z
dc.date.available 2020-06-30T03:13:42Z
dc.date.copyright Sat Dec 01 00:00:00 UTC 2018
dc.date.embargo 2001-01-01
dc.date.issued 2018-01-01
dc.description.abstract <p>Meat preservation in the form of salting, curing, and packaging have been centric to meat consumption for centuries. Current research in processed meats is heavily focused on alternatively-cured meats. Alternatively-cured meats have a greater potential for reduced color stability and shelf life (compared to conventionally-cured counterparts), due to limiting vegetable-like flavors. Development of vegetable-like flavors and natural/organic labeling requirements, meat processors generally reduce the amount of ingredients used, which can lead to quality and shelf life concerns. This study was designed to determine the effects of nitrite-embedded film (NEF) technology on fully cooked all-beef bologna. Specific emphasis was given to NEF’s ability to improve the cured color stability and shelf life of alternatively-cured meats. The research in the current study determined the impact of NEF on internal and external color, internal and external residual nitrate and nitrite, in addition to microbial growth over a 125-day simulated retail display period. An elevated temperature 21-day retail display was conducted on samples that were inoculated with a general unknown bacterial inoculum. Five treatments were manufactured (CON-CF, CJP-CF, CJP-NEF, NT10-CF, NT10-NEF); a conventionally-cured control (CON-CF) in vacuum packaged in conventional film, an alternatively-cured formulation (nitrite from cultured celery juice powder plus cherry powder) vacuum packaged into both conventional film (CJP-CF) and nitrite-embedded film (CJP-NEF). An additional alternatively-cured formulation was produced (Natpre T-10 EML Plus S) and vacuum packaged into both conventional film (NT10-CF) and nitrite-embedded film (NT10-NEF). NEF-packaged products demonstrated a significant increase (P < 0.05) for in-package external a* (redness) values and greater color stability. From day 41 through 125 of retail display, there were no significant differences (P > 0.05) in external and internal residual nitrite between treatments. NEF showed no significant difference (P < 0.05) for residual nitrate between any treatments. NEF-packaged product showed no difference (P > 0.05) in internal residual nitrite compared to vacuum packaged treatment counterparts. Reduced color stability was observed in CJP-CF, while CJP-NEF showed improved a* values. NEF packaging demonstrated no difference (P > 0.05) in microbial growth under traditional conditions. NEF exhibited no difference (P > 0.05) between treatments for inoculated elevated temperature microbial growth.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/16799/
dc.identifier.articleid 7806
dc.identifier.contextkey 14007085
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/16799
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/30982
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/16799/Cropp_iastate_0097M_17642.pdf|||Fri Jan 14 21:06:03 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Food Science
dc.subject.keywords Active Packaging
dc.subject.keywords Alternatively-cured
dc.subject.keywords Color
dc.subject.keywords Cured Meat
dc.subject.keywords Nitrite
dc.subject.keywords Nitrite-embedded film
dc.title The potential role of nitrite-embedded film technology in extending the color stability and shelf life of alternatively-cured meat products
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 85ecce08-311a-441b-9c4d-ee2a3569506f
thesis.degree.discipline Meat Science
thesis.degree.level thesis
thesis.degree.name Master of Science
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