+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Combined effect of an O2 absorber and oregano essential oil on shelf-life extension of Greek cod roe paste tarama salad stored at 4 °C

, : Combined effect of an O2 absorber and oregano essential oil on shelf-life extension of Greek cod roe paste tarama salad stored at 4 °C. Innovative Food Science & Emerging Technologies 10(4): 0-579

In the present study the combined effect of an O2 absorber and oregano essential oil (0.1% v/w) on shelf life extension of Greek cod roe paste (tarama salad) stored under refrigeration (4 °C) was investigated. The study was based on microbiological [Total viable count (TVC), Lactic Acid Bacteria (LAB), Enterobacteriaceae, H2S-producing, yeast and molds and Clostridium spp.), physicochemical (pH, fatty acid composition, thiobarbituric acid (TBA), and color) and sensory (color, odor, and taste) changes occurring in the product as a function of treatment and storage time. Aerobically packaged tarama salad stored at 4 °C was taken as the control sample. Results showed that TVC exceeded 7 log cfu/g on day 12–13 of storage for control samples and day 31–32 for samples containing oregano oil. Samples containing either the O2 absorber or the O2 absorber plus oregano oil never reached 7 log cfu/g during the 60 day storage period. LAB were only partially inhibited by the oregano oil and/or the O2 absorber. Yeasts and molds were totally inhibited by the O2 absorber. Enterobacteriaceae populations were below the method detection limit (2 log cfu/g) H2S-producing bacteria were the dominant spoilage microorganisms. Clostridum spp. was absent in 25 g sample. pH decreased from an initial value of 4.36 to 3.03 depending on specific treatment. Color parameters L and b increased and a decreased in control samples as well as in samples containing oregano oil. Color parameters remained unaffected in samples containing the O2 absorber. TBA expressed as malondialdehyde (MDA) values increased from 1.5 mg/kg to 3.4, 3.2 and 2.9 mg/kg for samples containing oregano oil, the O2 absorber and O2 absorber plus oregano oil at the point of sensory rejection, respectively. Saturated fatty acids (SFA) increased during storage with a respective decrease in monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) both in control samples and samples containing oregano oil. Fatty acid composition remained unaffected in all samples containing the O2 absorber. Sensory shelf life was 24 days for the control samples, 32 days for samples containing oregano oil, 60 days for samples containing the O2 absorber and at least 60 days for samples containing the O2 absorber plus oregano oil.Industrial relevanceOxygen absorbers as well as plant essential oils are considered natural means of preservation and may substantially extend the shelf life of foodstuffs while maintaining desirable sensory attributes (taste, odor and color).


DOI: 10.1016/j.ifset.2009.04.005

Other references

Domingo, J.; Chin, N.W., 1983: Lymphadenopathy in a heterogeneous population at risk for the acquired immunodeficiency syndrome (AIDS)--a morphologic study. The acquired immunodeficiency syndrome (AIDS) appears to be expanding both in the population at risk and in its clinical form of presentation. Persistent generalized lymphadenopathy has been reported in homosexual men who have immunologic abnormal...

López-Neblina, F.; Alvarez Jiménez, H.; Lopez Trápaga, O., 1999: Assessment of the nutritional status in patients referred for kidney transplantation. Transplantation Proceedings 31(7): 3026-3026

Reis; de Alencar Simoni J.C.agas, 1996: A Thermodynamic Study of Interactions of Monoionic Kaolinite with N,N-Dimethylacetamide (DMA) and Pyridine (PY). Two series of monoionic (M) kaolinites (M = H(+), Ca(2+), Cu(2+), Zn(2+), Al(3+), and Fe(3+)) were prepared from a natural Brazilian clay (São Simão clay, SP): series A, dried under vacuum at 25 degrees C, and series B, dried under vacuum at 25...

Stadié, R.; Geipel, A.; Heep, A.; Herberg, U.; Welker, B.; Gembruch, U.; Berg, C., 2007: Prenatal diagnosis of Marfan syndrome. Ultrasound in Obstetrics & Gynecology 30(1): 119-121

Debska, W.D.meracki, S., 1973: Influence of pesticides on some plants. Herba Polonica: 19 (2) 177-180

Wildsmith, J.A., 1993: Extradural abscess after central neural block. British Journal of Anaesthesia 70(4): 387-388

Tautenhahn, W., 1958: Uber die Turkentaube in der Stadt Braunschweig. Journal fuer Ornithologie, 99: 219

Protsenko, A.E.; Legunkova, M.R.M., 1962: The technique of electron microscope studies in phytopathology.. This brief guide contains sections on general principles, the formation of the image, applications to phytopathology, the preparation of mounts, preparations from virus-infected plant tissues, bacterial preparations, impressions of smut spores, ul...

Peiró, Cón.; Romacho, T.; Azcutia, Vónica.; Villalobos, L.; Fernández, E.; Bolaños, J.P.; Moncada, S.; Sánchez-Ferrer, C.F., 2016: Inflammation, glucose, and vascular cell damage: the role of the pentose phosphate pathway. Hyperglycemia is acknowledged as a pro-inflammatory condition and a major cause of vascular damage. Nevertheless, we have previously described that high glucose only promotes inflammation in human vascular cells previously primed with pro-inflamma...

Karhu, R.; Ahlstedt-Soini, M.; Bittner, M.; Meltzer, P.; Trent, J.M.; Isola, J.J., 2000: Chromosome arm-specific multicolor FISH. Several systems for 24-color fluorescence in situ hybridization (FISH) have been developed and applied to karyotyping and detection of chromosomal abnormalities. We have developed a 42-color multicolor FISH (mFISH) technique (armFISH), which permi...