scholarly journals Effects of dietary pantethine levels on contents of fatty acids and thiobarbituric acid reactive substances in the liber of rats orally administered varying amounts of autoxidized linoleate.

1991 ◽  
Vol 37 (1) ◽  
pp. 73-87 ◽  
Author(s):  
Naoko HIRAMATSU ◽  
Tadaaki KISHIDA ◽  
Takashi HAMANO ◽  
Masato NATAKE
Keyword(s):  
Fatty Acids ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substances

scholarly journals Aromatic Profile, Physicochemical and Sensory Traits of Dry-Fermented Sausages Produced without Nitrites Using Pork from Krškopolje Pig Reared in Organic and Conventional Husbandry

Animals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 55 ◽  
Author(s):  
Martin Škrlep ◽  
Marjeta Čandek-Potokar ◽  
Nina Batorek-Lukač ◽  
Urška Tomažin ◽  
Mónica Flores
Keyword(s):  
Fatty Acids ◽  
Thiobarbituric Acid ◽  
Starter Cultures ◽  
Raw Material ◽  
Thiobarbituric Acid Reactive Substances ◽  
Fermented Sausages ◽  
Dry Fermented Sausages ◽  
Amino Acid Degradation ◽  
Sensory Analyses ◽  
Husbandry System

Dry-fermented sausages were produced in a traditional way, without addition of nitrites and starter cultures, from meat of an autochthonous breed (Krškopolje pig) raised either in a conventional indoor or organic husbandry system. Physicochemical and sensory analyses were performed at the end of processing to characterize their quality. Dry-fermented sausages from organic pork retained more moisture, which resulted in higher water activity and softer texture (instrumental and sensory). They were more oxidized (higher thiobarbituric acid reactive substances (TBARS)), in agreement with more unsaturated fatty acid profile, a higher score for rancid taste, and a higher relative abundance of volatiles from lipid β-oxidation. Overall, dry-fermented sausages from organic pork had lower levels of volatile compounds, particularly, those originating from spices (despite the same quantity added) and lower levels of amino-acid degradation. Sensory analysis showed that dry-fermented sausages from organic pork had less intensive and vivid color, tasted more bitter and sour, and had more off-tastes. The observed differences could be related to initial differences in raw material (differences in meat pH and level of polyunsaturated fatty acids) affecting the process of fermentation.

scholarly journals New Antioxidant Multilayer Packaging with Nanoselenium to Enhance the Shelf-Life of Market Food Products

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 837 ◽  
Author(s):  
Paula Vera ◽  
Elena Canellas ◽  
Cristina Nerín
Keyword(s):  
Fatty Acids ◽  
Shelf Life ◽  
Thiobarbituric Acid ◽  
Food Products ◽  
Potato Chips ◽  
Laboratory Scale ◽  
Selenium Nanoparticles ◽  
Thiobarbituric Acid Reactive Substances ◽  
Oxidation Study ◽  
Cooked Ham

A flexible multilayer with selenium nanoparticles incorporated has been used to build an antioxidant packaging. The oxidation of hazelnuts, walnuts, and potato chips was tested at laboratory scale. Hexanal released by the nuts, fatty acids oxidation study, TBARS (thiobarbituric acid reactive substances), and tasting were compared to study the oxidation of foods packaged with this antioxidant packaging. Finally, TBARS method in combination with tasting were selected due to their simplicity and accuracy. It was found that hazelnuts packaged in nanoSe active bags released around 20% less malonaldehyde (MDA) than the blanks. In the case of the walnuts, the active ones released 25% less MDA than the blanks. As for potato chips, the improvement was around 22%. Finally, an industrial study was done. Cooked ham, chicken, and a ready-to-eat vegetable mixture seasoned with butter were industrially packaged with the new antioxidant material and improvements higher than 25% were obtained.

scholarly journals Design of Gelatin Pouches for the Preservation of Flaxseed Oil during Storage

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 150
Author(s):  
Hela Kchaou ◽  
Mourad Jridi ◽  
Moncef Nasri ◽  
Frédéric Debeaufort
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Maillard Reaction ◽  
Thiobarbituric Acid ◽  
Flaxseed Oil ◽  
Thiobarbituric Acid Reactive Substances ◽  
Extinction Coefficients ◽  
Gelatin Films ◽  
Small Doses ◽  
Gradual Development

Flaxseed oil (FO) is composed mainly of polyunsaturated fatty acids that are very sensitive to oxidation induced by oxygen, temperature, and light. To overcome this problem, gelatin-based films containing glucose are crosslinked via the Maillard reaction (MR) at 120 °C and used for the conception of pouches in which the FO was packaged. The prepared pouches, as well as the oil alone, are incubated at 50 °C for 21 days. The results show that the peroxide index of the oil stored in the gelatin-based pouches is almost stable and decreases on the 21st day. The specific extinction coefficients prove a more pronounced degradation of the non-package oil (control). In addition, the results of thiobarbituric acid reactive substances (TBARs) test reveal higher values in the control, with a tendency to continuously increase up until the 21st day. However, the oil stored in the pouches reveals less TBARs content, decreasing with oxidation time. The non-heated glucose-supplemented pouches showed the best results, suggesting a moderate and gradual development of the MR at 50 °C. The application of pouches based on gelatin films seems to be an effective and interesting tool for protecting FO against lipid oxidation, acting as perfectly biodegradable and sustainable containers for small doses.

Storage stability of functional chicken meat bullets coated with composite antimicrobial biodegradable films under different packaging conditions

2016 ◽  
Vol 56 (11) ◽  
pp. 1953 ◽  
Author(s):  
Richa Rani ◽  
Manish Kumar Chatli ◽  
Mohan Jairath ◽  
Nitin Mehta ◽  
Pavan Kumar
Keyword(s):  
Fatty Acids ◽  
Sensory Quality ◽  
Storage Stability ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Plate Count ◽  
Thiobarbituric Acid Reactive Substances ◽  
Standard Plate Count ◽  
Physico Chemical ◽  
Standard Plate

Storage stability of processed chicken meat bullets (CMB) packaged under different packaging conditions in supplementation with composite antimicrobial biodegradable (CAB) films impregnated with 0.5% (v/v) cinnamaldehyde, a natural antimicrobial, was evaluated. Different treatments such as aerobic (aerobic packaged product, CAB-coated product and aerobic packaging), modified atmosphere packaging (MAP; MAP 50 : 50; CO2 and N2, F-MAP; CAB-coated product and MAP) and vacuum (VAC; vacuum packaged, F-VAC; CAB-coated product and vacuum) are assessed for various physico-chemical (pH, thiobarbituric acid reactive substances number, peroxide value and free fatty acids), microbiological (standard plate count, psychrophiles, coliforms, yeast and moulds, Staphylococci sp.) and sensory quality characteristics at 7-day intervals throughout the storage period of 35 days under refrigerated (4 ± 1°C) conditions. The CMB coated with CAB films under MAP (F-MAP) conditions had significantly (P < 0.05) better value for water activity, thiobarbituric acid reactive substances number, peroxide value and free fatty acids throughout the storage in comparison to the Control (MAP). Standard plate count was significantly (P < 0.05) lower for F-MAP than all other treatments. Staphylococci sp., coliforms, Salmonellae sp., yeast and mould, and psychrophiles were completely absent in CAB-coated products throughout the storage period. All the CAB products had better (P < 0.05) sensory attributes than their respective Controls during storage. Results concluded that the CMB coated in developed CAB films have a storage life of more than 35 days under MAP conditions under refrigerated (4 ± 1°C) conditions with the acceptable physico-chemical, microbiological and sensory quality attributes.

scholarly journals DNA damage by oxidized fatty acids detected by DNA/SPE biosensor

2021 ◽  
Vol 8 (1) ◽  
pp. 45-53
Author(s):  
Ľudmila Sirotová ◽  
Marcela Matulová
Keyword(s):  
Fatty Acids ◽  
Dna Damage ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Thiobarbituric Acid ◽  
Acid Oxidation ◽  
Thiobarbituric Acid Reactive Substances ◽  
Screen Printed Electrode ◽  
Oxidative Products ◽  
Oxidized Fatty Acids

Electrochemical DNA/screen-printed electrode biosensor (DNA/SPE biosensor) was tested for the detection of alterations in DNA formed as a consequence of the reaction between DNA and oxidative products of fatty acids. Interaction of DNA with a mixture of products generated during the oxidation of linoleic and oleic acids manifested DNA damage depending on a tested fatty acid and the presence of hydroperoxides and thiobarbituric acid reactive substances (TBARS) determined after the oxidation of fatty acids. A bigger extent of the DNA damage was registered in the case of the interaction with oxidized linoleic acid with the high content of TBARS. The results achieved suggest the possible application of DNA/SPE biosensor in the detection of an interaction between DNA and products of fatty acid oxidation.

scholarly journals Wild and Cultivated Centaurea raphanina subsp. mixta: A Valuable Source of Bioactive Compounds

Antioxidants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 314 ◽  
Author(s):  
Spyridon A. Petropoulos ◽  
Ângela Fernandes ◽  
Maria Ines Dias ◽  
Carla Pereira ◽  
Ricardo Calhelha ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Cell Lines ◽  
Nutritional Value ◽  
Thiobarbituric Acid ◽  
Wild Plants ◽  
Cultivated Plants ◽  
Thiobarbituric Acid Reactive Substances ◽  
Antiproliferative Effects ◽  
Edible Species ◽  
Mcf 7

Centaurea raphanina subsp. mixta (DC.) Runemark is a wild edible species endemic to Greece. This study evaluated the chemical composition and bioactive properties of wild and cultivated C. raphanina subsp. mixta plants. Wild plants had higher nutritional value than cultivated ones, whereas cultivated plants contained more tocopherols. Glucose and sucrose were higher in cultivated plants and trehalose in wild ones. Oxalic and total organic acids were detected in higher amounts in cultivated samples. The main fatty acids were α-linolenic, linoleic and palmitic acid, while wild plants were richer in polyunsaturated fatty acids. Two pinocembrin derivatives were the main phenolic compounds being detected in higher amounts in wild plants. Regarding the antioxidant activity, wild and cultivated plants were more effective in the oxidative haemolysis (OxHLIA) and thiobarbituric acid reactive substances (TBARS) assays, respectively. Moreover, both extracts showed moderate cytotoxicity in non-tumor cell lines (PLP2), while cultivated plants were more effective against cervical carcinoma (HeLa), breast carcinoma (MCF-7) and non-small lung cancer (NCI-H460) cell lines. Finally, wild plants showed higher antimicrobial activity than cultivated plants against specific pathogens. In conclusion, the cultivation of C. raphanina subsp. mixta showed promising results in terms of tocopherols content and antiproliferative effects, however further research is needed to decrease oxalic acid content.

scholarly journals Effect of micro-encapsulated n-3 fatty acids on quality properties of two types of dry sausages

2014 ◽  
Vol 83 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Zdeněk Pavlík ◽  
Alena Saláková ◽  
Josef Kameník ◽  
Jan Pospíšil ◽  
Michaela Králová ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Quality Indicators ◽  
Unsaturated Fatty Acids ◽  
Meat Products ◽  
Thiobarbituric Acid ◽  
Rosemary Extract ◽  
Thiobarbituric Acid Reactive Substances ◽  
Oxidation Processes ◽  
Dry Sausages

Dry sausages are popular traditional meat products. As these products are a rich source of animal fat, there is an effort to improve their fatty acid ratio. The aim of this work was to study the effect of micro-encapsulated n-3 fatty acids added into dry sausages. Samples of dry sausages (Poličan and Vysočina) enriched with unsaturated fatty acids (36 g for 6 kg of mixture) and rosemary extract (0.3 g·kg-1) were made along with control samples. Physicochemical, instrumental analyses were performed, fatty acid profile was measured by gas chromatography, and oxidation processes were monitored by determination of thiobarbituric acid reactive substances. No significant differences (P ≥ 0.05) in quality indicators were found between samples, however, there were differences in oxidation processes. Sausages enriched with unsaturated fatty acids showed an increase in thiobarbituric acid reactive substances (> 2 mg·kg-1 and > 3 mg·kg-1 in Poličan and Vysočina, respectively, compared to control). Sausages enriched with unsaturated fatty acids and also with rosemary extract have the similar concentration of thiobarbituric acid reactive substances as the control. An increase in the proportion of monounsaturated fatty acids and polyunsaturated fatty acids was seen in samples of Poličan supplemented with unsaturated fatty acids in combination with rosemary extract. The addition of rosemary extract had also a significant effect in increasing the proportion of unsaturated fatty acids in samples of Vysočina. From the viewpoint of quality indicators, changes in the properties of the product were not seen in any samples.

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