Dog rose (Rosa canina L.) as a functional ingredient in porcine frankfurters without added sodium ascorbate and sodium nitrite.
The effect of dog rose (Rosa canina L.; RC), rich in polyphenols and ascorbic acid, on lipid and protein oxidation, colour stability and texture of frankfurters was investigated. Four treatments were prepared: with 5 or 30 g/kg RC extract and without sodium ascorbate and sodium nitrite (5RC and 30RC, respectively), a positive control (with sodium ascorbate and sodium nitrite; PC) and a negative control (without sodium ascorbate, sodium nitrite or RC extract; NC). Hexanal values were much higher throughout storage in NC compared to RC and PC frankfurters (P<0.001). The RC extracts protected against protein oxidation, but not as efficiently as PC (P<0.05). In the RC treated frankfurters, lower a* values were measured compared to PC due to the lack of sodium nitrite. In conclusion, dog rose can act as a natural antioxidant in frankfurters, but not as full replacer for sodium nitrite.
Laboratory of Animal Nutrition and Animal Product Quality, Department of Animal Production, Faculty of Bioscience Engineering, Ghent University, Melle, Belgium.
Els
E
Vossen
Mariana
M
Utrera
Stefaan
S
De Smet
David
D
Morcuende
Mario
M
Estévez
D015074:2-Aminoadipic Acid / Q000031:analogs & derivatives / Q000032:analysis; D000447:Aldehydes / Q000032:analysis; D000818:Animals; D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D001530:Belgium; D005520:Food Preservatives / Q000737:chemistry* / Q000302:isolation & purification; D061353:Food Storage; D005638:Fruit / Q000737:chemistry*; D005971:Glutamates / Q000032:analysis; D015227:Lipid Peroxidation; D008461:Meat Products / Q000032:analysis*; D055595:Mechanical Phenomena; D010858:Pigmentation; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D059748:Proteolysis; D012034:Refrigeration; D027826:Rosa / Q000737:chemistry*; D013030:Spain; D034421:Sus scrofa; D055549:Volatile Organic Compounds / Q000032:analysis
D000447:Aldehydes; D000975:Antioxidants; D005520:Food Preservatives; D005971:Glutamates; D010936:Plant Extracts; D055549:Volatile Organic Compounds; D015074:2-Aminoadipic Acid; C000061:allysine; C021199:glutamic acid gamma-semialdehyde; C010463:n-hexanal