Consumer acceptability studies in shelf-life estimation of rapeseed and sunflower oils

Urszula Samotyja

Abstract

Shelf-life of plant oils is determined by oxidative stability. The consumers use their own criterion to assess oil’s quality. The occurrence of perceptible changes in oxidized food provides information that the product is no longer safe and should not be accepted. The present study was aimed to determine the shelf-life of rapeseed and sunflower oils in terms of consumer acceptance. The results of sensory consumer acceptability tests followed by survival analysis were integrated with conventional chemical marker of oils’ quality and shelf-life (peroxide value).The important finding is that consumers sometimes do not recognize the advanced oxidative processes in food. This may increase the safety risk because of the harmful effect of oxidative processes on human health. Consumers differentiated quality of oils with similar state of oxidation: the rapeseed oil with peroxide value on the level 5 meq O2 kg−1 was rejected by three quarters of consumers, sunflower — by only 3%. It proves that the consumer perception of oxidative changes is specific to the product and does not coincide with the accepted chemical criterion of shelf-life.
Author Urszula Samotyja (WT / KTAS)
Urszula Samotyja,,
- Department of Food Commodity Science
Journal seriesActa Alimentaria, ISSN 0139-3006, e-ISSN 1588-2535, [1588-2535], (A 15 pkt)
Issue year2015
Vol44
No1
Pages60-67
Publication size in sheets0.5
Keywords in Englishfood safety and nutrition, shelf-life, consumer issues, consumer acceptability, survival analysis, oxidation
ASJC Classification1106 Food Science
DOIDOI:10.1556/AAlim.44.2015.1.5
Languageen angielski
Score (nominal)15
Score sourcejournalList
ScoreMinisterial score = 15.0, 22-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 15.0, 22-01-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2015 = 0.251; WoS Impact Factor: 2015 = 0.333 (2) - 2015=0.38 (5)
Citation count*4 (2020-10-15)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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