Efficiency of Rosemary and Basil Essential Oils on the Shelf-Life Extension of Atlantic Mackerel (Scomber scombrus) Fillets Stored at 2°C

2017 ◽  
Vol 100 (2) ◽  
pp. 335-344 ◽  
Author(s):  
Romdhane Karoui ◽  
Abdo Hassoun
Keyword(s):  
Essential Oils ◽  
Shelf Life ◽  
Oxidation Products ◽  
Life Extension ◽  
Control Group ◽  
Atlantic Mackerel ◽  
Scomber Scombrus ◽  
Fluorescence Measurements ◽  
Lipid Oxidation Products ◽  
The Impact

Abstract The objective of the present study was to evaluate the impact of rosemary and basil essential oils (EOs) onthe quality of Atlantic mackerel fillets stored at 2°C up to 15 days. Atlantic mackerel (Scomber scombrus) fillets were periodically evaluated to assess their textural, color, physicochemical, andspectral characteristics. The results indicated that rosemary and basil treatments were effective for inhibiting the formation of total volatile basic nitrogen (TVB-N) and lipid oxidation products during storage. Based on TVB-N values, the shelf life of Atlantic mackerel fillets treated with rosemary and basil EOs was extended by 2 and 5 days, respectively, compared to the control group. Similar results were obtained with thiobarbituricacid–reactive substance analysis, which demonstrated an extended shelf life of Atlantic mackerel immersed with rosemary and basil EOs of 2 and 3 days, respectively, compared to the control group. The factorial discriminant analysis applied on the concatenated first five principal components corresponding to the physicochemical, textural, color, and fluorescence measurements allowed clear discrimination of the three groups, because a correct classification rate of 93.3% was obtained. Therefore, treatment with basil and rosemary EOs, as natural biopreservative compounds, could present a high-potential application in the seafood industry.

scholarly journals Oxidative Stress Biomarkers in Urine of Metal Carpentry Workers Can Be Diagnostic for Occupational Exposure to Low Level of Welding Fumes from Associated Metals

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3167
Author(s):  
Flavia Buonaurio ◽  
Maria Luisa Astolfi ◽  
Daniela Pigini ◽  
Giovanna Tranfo ◽  
Silvia Canepari ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Occupational Exposure ◽  
Oxidation Products ◽  
Control Group ◽  
Welding Fumes ◽  
Oxidative Stress Biomarkers ◽  
Limit Values ◽  
Stress Biomarkers ◽  
Specificity And Sensitivity ◽  
The Impact

Urinary concentrations of 16 different exposure biomarkers to metals were determined at the beginning and at the end of a working shift on a group of workers in the metal carpentry industry. Five different oxidative stress biomarkers were also measured, such as the oxidation products of RNA and DNA metabolized and excreted in the urine. The results of workers exposed to metals were compared to those of a control group. The metal concentrations found in these workers were well below the occupational exposure limit values and exceeded the mean concentrations of the same metals in the urine of the control group by a factor of four at maximum. Barium (Ba), mercury (Hg), lead (Pb) and strontium (Sr) were correlated with the RNA oxidative stress biomarker, 8-oxo-7, 8-dihydroguanosine (8-oxoGuo), which was found able to discriminate exposed workers from controls with a high level of specificity and sensitivity. The power of this early diagnostic technique was assessed by means of the ROC curve. Ba, rubidium (Rb), Sr, tellurium (Te), and vanadium (V) were correlated with the level of the protein oxidation biomarker 3-Nitrotyrosine (3-NO2Tyr), and Ba, beryllium (Be), copper (Cu), and Rb with 5-methylcytidine (5-MeCyt), an epigenetic marker of RNA damage. These effect biomarkers can help in identifying those workers that can be defined as “occupationally exposed” even at low exposure levels, and they can provide information about the impact that such doses have on their health.

Atlantic Mackerel (Scomber scombrus, L.): Shelf Life in Ice

1982 ◽  
Vol 47 (6) ◽  
pp. 1808-1810 ◽  
Author(s):  
SUDIP N. JHAVERI ◽  
SHING-SHEN LEU ◽  
SPIROS M. CONSTANTINIDES
Keyword(s):  
Shelf Life ◽  
Atlantic Mackerel ◽  
Scomber Scombrus

scholarly journals P110α and P110δ catalytic subunits of PI3 kinase regulate lysophosphatidylcholine-induced TRPC6 externalization

2021 ◽  
Author(s):  
Pinaki Chaudhuri ◽  
Andrew H. Smith ◽  
Priya Putta ◽  
Linda M. Graham ◽  
Michael A. Rosenbaum
Keyword(s):  
Signaling Pathways ◽  
Intracellular Signaling ◽  
Transient Receptor Potential ◽  
Oxidation Products ◽  
In Vivo Studies ◽  
Subsequent Increase ◽  
Lipid Oxidation Products ◽  
The Impact

Lipid oxidation products, including lysophosphatidylcholine (lysoPC) inhibit endothelial cell (EC) migration in vitro and impair EC healing of arterial injuries in vivo, in part by activating phosphatidylinositol 3-kinase (PI3K), which increases the externalization of canonical transient receptor potential 6 (TRPC6) channels and the subsequent increase in intracellular calcium. Inhibition of PI3K is a potential method to decrease TRPC6 activation and restore migration, but PI3K is involved in multiple intracellular signaling pathways and has multiple downstream effectors. The goal of this study is to identify the specific p110 catalytic subunit isoforms responsible for lysoPC-induced TRPC6 externalization to identify a target for intervention while minimizing impact on alternative signaling pathways. Down-regulation of the p110α and p110δ isoforms, but not the p110β or p110γ isoforms, with small interfering RNA significantly decreased phosphatidylinositol (3,4,5)-trisphosphate production and TRPC6 externalization, and significantly improved EC migration in the presence of lysoPC. These results identify an additional role of p110α in EC and reveal for the first time a specific role of p110δ in EC, providing a foundation for subsequent in vivo studies to investigate the impact of p110 isoform inhibition on arterial healing after injury.

Potential application of corn starch edible films with spice essential oils for the shelf life extension of red meat

2015 ◽  
Vol 119 (6) ◽  
pp. 1613-1623 ◽  
Author(s):  
K. Radha krishnan ◽  
S. Babuskin ◽  
K.R. Rakhavan ◽  
R. Tharavin ◽  
P. Azhagu Saravana Babu ◽  
...  
Keyword(s):  
Essential Oils ◽  
Shelf Life ◽  
Potential Application ◽  
Corn Starch ◽  
Edible Films ◽  
Red Meat ◽  
Life Extension ◽  
Shelf Life Extension

scholarly journals Effect of peroxyacetic acid spray and storage temperature on the microbiota and sensory properties of vacuum packed subprimal cuts

2021 ◽  
Author(s):  
Xianqin Yang ◽  
Hui Wang ◽  
Scott Hrycauk ◽  
Mark D. Klassen
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Shelf Life ◽  
Storage Temperature ◽  
Life Extension ◽  
Rrna Gene ◽  
Peroxyacetic Acid ◽  
Microbial Profiling ◽  
Antimicrobial Interventions ◽  
The Impact

We investigated the impact of peroxyacetic acid (PAA; 200 ppm) spray on the microbiota and shelf life of commercial vacuum packed beef stored at chiller temperatures. Ribeye cuts (n=147) were collected from a local beef plant on the day of production for two consecutive days, with one set collected at the start of work with the PAA spray nozzles turned off (control) and during the routine production with the PAA spray nozzles turned on (PAA) on each day. Packs were stored at 4, 2 and -1°C for up to 34, 104 and 180 days, and sampled at appropriate intervals for sensory assessment, microbial enumeration and microbial profiling by 16S rRNA gene amplicon analysis. Treatment with PAA did not affect the initial meat pH, the initial numbers of total aerobes, lactic acid bacteria or Enterobacteriaceae (p>0.05) before storage; however, it delayed the onset of spoilage by 7, 21 and 54 days at 4, 2 and -1°C, respectively. Square root models of the variation of growth rate with temperature indicated lactic acid bacteria grew faster and Enterobacteriaceae grew slower on PAA treated than not treated meat. Negative associations between pH and deterioration of meat during storage were observed for PAA treated meat. During storage, the microbiota were primarily dominated by Carnobacterium and Lactobacillus/Lactococcus on control meat, but by Leuconostoc on PAA treated meat. Serratia, Yersinia and Clostridium were identified by LEfSe analysis as biomarkers for control meat, the latter of which was found in high abundance in samples that had the highest spoilage scores. IMPORTANCE The findings of this study show that PAA solutions applied at low concentrations under commercial settings positively modulated the meat microbiota. It did not have bactericidal effects for beef subprimals with very low microbial load. However, it differentially impacted the members of the microbiota, which resulted in delayed onset of spoilage of vacuum packed beef subprimal stored at all three temperatures (4, 2 and -1°C). This differential impact could be through one or a combination of the following factors: favoring the growth of lactic acid bacteria which may in turn exert a competitive exclusion that might be due to production of antimicrobial compounds such as organic acids and bacteriocins; exerting synergistic antimicrobial effects with low temperatures against members of Enterobacteriaceae; direct or indirect inhibitory effects against members of clostridia. These findings not only advance our understanding of the microbial ecology of vacuum packed meat stored at chiller temperatures, but also suggest bacteriostatic concentrations of antimicrobial interventions can be explored for shelf life extension.

scholarly journals Fluid resuscitation patients with burn sepsis

2020 ◽  
pp. 42-43
Author(s):  
O.M. Kovalenko ◽  
O.I. Osadcha ◽  
A.A. Kovalenko ◽  
A.S. Grisha ◽  
O.M. Lynnyk ◽  
...  
Keyword(s):  
Comparison Group ◽  
Total Body Surface Area ◽  
Clinical Manifestations ◽  
Main Group ◽  
Oxidation Products ◽  
Control Group ◽  
Carbonyl Groups ◽  
Septic Complications ◽  
Endogenous Intoxication ◽  
Lipid Oxidation Products

Objective. The purpose the of the study is to improve the fluid therapy regimens for burn sepsis patient. Materials and methods. The study is based on the observation 52 patients with burn sepsis aged 23 to 65 years, with a total body surface area more than 35 % at the Kyiv City Clinical Hospital № 2 during 2016-2019. Patients were divided into two groups: the main group – 30 patients were treated with crystalloids, plasma, albumin and Rheosorbilact (RSL); control group – 16 patients received treatment without using of RSL. Clinical and biochemical parameters of endogenous intoxication (tissue destruction products, medium weight molecules (MWM), concentrations of lipid oxidation products (LOP) – by diene conjugate content and oxidatively modified proteins (OMP) – by carbonyl groups) were studied. Results and discussion. Syndrome of endogenous intoxication was an increase in burn sepsis patients, which correlated with an increase in the number of LOP, OMP, MWM, namely an increase in the hydrophobic (most toxic) fraction of MWM, which is 2-3 times higher than in healthy, sick and both groups. MWM and hydrophobic fraction remained high during the observation period in patients of the comparison group. MWM decreased by 1.35 times in patients of the main group relative to the group of crystalloids. The level of carbonyl groups of serum OMP in patients of the comparison group was 50 % higher than in the main group. The indicators of LOP exceeded 1.45 times in the comparison group, which testified to the continuation of oxidative stress and the continuation of systemic inflammation. Acute respiratory distress syndrome (ARDS) was characterized by the appearance of bilateral infiltrates in the lungs, according to radiography. This common organ dysfunction was detected in 75 % of patients in the comparison group and in 63 % of patients in the RSL-group. The duration of mechanical ventilation in the main group decreased by 1,6 days. Conclusions. The use of Rheosorbylact for patients with burn sepsis at a dose of 15 ml/kg has led to a decrease in the manifestations of intoxication syndrome, reduction of MWM, LOP, OMP, clinical manifestations of systemic inflammatory response, septic complications by 1.3 times, septic shock from 16 to 12 %, and the incidence of ARDS from 75 to 63 %.

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