scholarly journals Formulation and shelf-life of fish burgers served to preschool children

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Giorgio Smaldone ◽  
Raffaele Marrone ◽  
Tiziana Zottola ◽  
Lucia Vollano ◽  
Giulio Grossi ◽  
...  
Keyword(s):  
Shelf Life ◽  
Fish Species ◽  
Bacterial Species ◽  
Modified Atmosphere Packaging ◽  
Thiobarbituric Acid ◽  
Animal Origin ◽  
Plate Count ◽  
Microbiological Analysis ◽  
Nutritional Values ◽  
Organoleptic Characteristics

Consumer is very careful about healthiness; in this context nutritionists often highlight the importance of fish for human nutrition because of their protein and fatty acid composition. In order to stimulate utilisation and consumption of fish species by unusual target groups such as children, the aim of this research was to formulate and to evaluate shelf-life and nutritional values of fish preparations stored in modified atmosphere packaging (MAP). Fish species used for trail were <em>Trachurus trachurus</em> and <em>Oncorhynchus mykiss</em> fished and farmed in Basilicata region respectively. Fish burgers were made with different ingredients of plant and animal origin and packed in air (control) and in MAP and stored at refrigeration atemperature. Sensory, physicalchemical analysis as pH, a<sub>w</sub>, total volatile nitrogen (TVN), trimetilammine (TMA), thiobarbituric acid (TBA), free fatty acids (FFA) and microbiological analysis like aerobic plate count, Enterobacteriaceae, <em>Escherichia coli</em>, <em>Pseudomonas</em> spp., sulphite-reducing clostridia, <em>Staphylococci</em>, <em>Salmonella</em> spp. and <em>Listeria monocytogenes</em> were performed at intervals of 0°, 1°, 2°, 5°, 8°, 15°, 22°, day from production. Results showed that fish burgers stored in MAP had a longer shelf-life; protein degradation indexes and spoilage bacterial species showed lower values in the samples packaged in MAP compared with the control. The formulation of the fish burger meets the approval of the target consumers. The mixing of natural ingredients has made possible both the enhancement of the organoleptic characteristics with an excellent balance of nutritional values. The diversification of fish preparations, besides enhancing the fish production of marginal areas would add value to a product with potential and remarkable profit margins.

Microbiological and Sensory Quality of Fresh Ready-to-Eat Artichoke Hearts Packaged under Modified Atmosphere

2017 ◽  
Vol 80 (5) ◽  
pp. 740-749 ◽  
Author(s):  
Nuria García-Martínez ◽  
Pedro Andreo-Martínez ◽  
Luis Almela ◽  
Lucía Guardiola ◽  
José A. Gabaldón
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Modified Atmosphere Packaging ◽  
Threshold Value ◽  
Plate Count ◽  
Vacuum Impregnation ◽  
Modified Atmosphere ◽  
Minimally Processed ◽  
Sensory Qualities ◽  
Minimally Processed Vegetables

ABSTRACT In recent years the sales of minimally processed vegetables have grown exponentially as a result of changes in consumer habits. The availability of artichoke buds as a ready-to-eat product would be, therefore, highly advantageous. However, minimally processed artichoke hearts are difficult to preserve because of their rapid browning and the proliferation of naturally occurring microorganisms. We developed artichoke hearts prepared as ready-to-eat products that maintain the characteristics of the fresh product. The microbiological stability, sensory qualities, and shelf life of the processed artichoke hearts were determined. During the shelf life, Salmonella, Listeria monocytogenes, and Escherichia coli counts were below the limits legally established by European regulations for minimally processed vegetables. The pH played an important role in microbial growth. Artichoke hearts had lower microbial counts in experiments conducted at pH 4.1 than in experiments conducted at pH 4.4, although the recommended threshold value for total plate count (7 log CFU/g) was not exceeded in either case. Sensory parameters were affected by the microorganisms, and artichoke products at lower pH had better sensory qualities. Vacuum impregnation techniques, modified atmosphere packaging, and low storage temperature were very effective for increasing the shelf life of minimally processed artichokes. The average shelf life was approximately 12 to 15 days.

Combined Effect of Electron-Beam (beta) Irradiation and Organic Acids on Shelf Life of Pork Loins during Cold Storage

2004 ◽  
Vol 67 (1) ◽  
pp. 168-171 ◽  
Author(s):  
BANG-HYUN KIM ◽  
AERA JANG ◽  
SANG O. LEE ◽  
JOONG S. MIN ◽  
MOOHA LEE
Keyword(s):  
Electron Beam ◽  
Organic Acids ◽  
Shelf Life ◽  
Thiobarbituric Acid ◽  
Plate Count ◽  
Combined Treatments ◽  
Thiobarbituric Acid Reactive Substances ◽  
Combination Treatments ◽  
Total Plate Count ◽  
Plate Counts

The combined effects of organic acids and irradiation on shelf life of pork loins were examined. Fresh pork loins were sprayed with organic acids (lactic, citric, and acetic) at 2%, packaged aerobically, and irradiated with an electron beam at 1, 2, and 3 kGy. During 14 days of storage, total plate count, coliform number, pH, and thiobarbituric acid–reactive substances were measured. Combinations of organic acid and irradiation were more effective in reducing and maintaining low total plate counts and coliform levels during storage than either treatment alone. Higher lipid oxidations were observed in all combination treatments at 1 day of storage than in the irradiation-only group. However, lower lipid oxidations were the result after 14 days of storage when combination treatments were used with irradiations of 2 and 3 kGy. Combined treatments involving lower irradiation doses than those required for irradiation alone could be used to extend the shelf life of pork loins during postirradiation storage without increasing lipid oxidation.

scholarly journals Effects of processing methods on nutritional composition of fish pampus argenteus (white pomfret) in iran

10.5219/1274 ◽  
2020 ◽  
Vol 14 ◽  
pp. 412-416
Author(s):  
Ali Aberoumand
Keyword(s):  
Shelf Life ◽  
Fish Species ◽  
Proximate Composition ◽  
Nutritional Composition ◽  
Fish Fillet ◽  
Processing Methods ◽  
Fish Products ◽  
Nutritional Values ◽  
Frying Process ◽  
Pampus Argenteus

The effects of different processing methods (Frying cooking, brining and boiling) on the proximate composition of fish species (Pampus argenteus) were investigated. The objective of this work is to know the best processing methods, the effect of processing on nutritional values of fish products. The result of the proximate composition of the fish species showed that the highest protein content (38.17%) was in P. argenteus processed with the frying process. The result of moisture content indicated that boiled samples were consistently the least (25.20%) while for fried sample had the highest moisture percentage. The lipid was reduced to the least value of 9.94% in the brined fish. In cooking, the important factors for consideration are moisture, lipids, and protein, though low moisture would ensure a fish product with extended shelf life. To have a longer shelf life, high protein is desirable, a low lipid is equally desirable as to reduce oxidation and rancidity in the samples which causes off-flavor and bad taste in fish products. In conclusion, all the processing methods are good and could extend the shelf life of the products with an exception of boiling method; they could keep the fish fillet free from spoilage and microorganisms attack for some period. This study showed that the proximate values obtained could be of help in choosing fish based on nutritional values.

Shelf-Life Extension of Refrigerated Mediterranean Mullet (Mullus surmuletus) Using Modified Atmosphere Packaging

2005 ◽  
Vol 68 (10) ◽  
pp. 2201-2207 ◽  
Author(s):  
NIKOLAOS POURNIS ◽  
AIKATERINI PAPAVERGOU ◽  
ANASTASIA BADEKA ◽  
MICHAEL G. KONTOMINAS ◽  
IOANNIS N. SAVVAIDIS
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Gas Mixtures ◽  
Life Extension ◽  
Plate Count ◽  
Modified Atmosphere ◽  
Shelf Life Extension ◽  
Mullus Surmuletus ◽  
Sensory Analyses ◽  
Bacterial Groups

The present work evaluated the quality and freshness characteristics and the effect of modified atmosphere packaging (MAP) on the shelf-life extension of refrigerated Mediterranean mullet using microbiological, biochemical, and sensory analyses. Fresh open sea red mullet (Mullus surmuletus) were packaged in four different atmospheres: M1, 10%/20%/70% (O2/CO2/N2); M2, 10%/40%/50% (O2/CO2/N2); M3, 10%/60%/30% (O2/CO2/N2); identical fish samples were packaged in air. All fish were kept under refrigeration (4 ± 0.5°C) for 14 days. Of the three gas atmospheres, the 10%/40%/50% (M2) and 10%/60%/30% (M3) gas mixtures were the most effective for inhibiting growth of aerobic microflora in mullet samples until day 10 of refrigerated storage. H2S-producing bacteria and pseudomonads were part of the mullet microflora and their growth was partly inhibited under MAP conditions. Between these two bacterial groups, H2S-producing bacteria (including Shewanella putrefaciens) were dominant toward the end of the storage period, regardless of the packaging conditions. Brochothrix thermosphacta and lactic acid bacteria were found to be members of the final microbial flora of MAP and air-packaged mullet, whereas the Enterobacteriaceae population was lower than other bacterial groups. Of the chemical freshness indices determined, thiobarbituric acid values were variable in mullet samples irrespective of packaging conditions indicative of no specific oxidative rancidity trend. Based on sensorial data and aerobic plate count, trimethylamine nitrogen and total volatile basic nitrogen limit values in the range of ca. 15 to 23 and 52 to 60 mg N/100 g of fish muscle were obtained, respectively, for mullet packaged under modified atmosphere and air. Sensory analyses (odor and taste attributes) showed that the limit of sensorial acceptability was reached after ca. 6 days for the samples packaged in air, 8 days for the M1 and M3 samples, and after 10 days for the M2 samples. Respective shelf-life extension for fresh whole mullet was ca. 2 days (M1 and M3 gas mixtures), and 4 days (M2 gas mixture).

Effect of Chitosan and Cinnamon oil edible coating on shelf life of chicken fillets under refrigeration conditions

2017 ◽  
Author(s):  
Anshul Kumar Khare ◽  
Robinson J.J. Abraham ◽  
V. Appa Rao ◽  
R. Narendra Babu ◽  
Wilfred Ruban
Keyword(s):  
Shelf Life ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Acid Number ◽  
Water Holding Capacity ◽  
Plate Count ◽  
Chicken Breast ◽  
Cinnamon Oil ◽  
Water Holding ◽  
Methods Of Application

In present study, chicken fillets were coated with chitosan and cinnamon oil by three methods viz., spraying, brushing and dipping and shelf-life of coated meat were studied. Efficiency of coating material and three methods of application were determined through shelf-life studies of coated meat under refrigeration conditions (4±1°C). Based on the results of physico-chemical, sensory and microbial characteristics, spraying method had lower Tyrosine Value, Thiobarbituric Acid number, Standard Plate count, drip loss and higher sensory scores compared to other methods of application. Extract Release Volume and Water Holding Capacity decreased significantly (P less than 0.05) with storage period in all the samples. However spraying had comparatively lower values/or higher water holding capacity. Hunter color values did not differ significantly with storage and between treatments though brushing and dipping samples had comparatively higher yellowness and lightness but lower redness value. Spraying of chicken breast extended the shelf life of chicken breast upto 7 days compared to 3 to 5 days for control and treatments.

scholarly journals Quality of Refrigerated Tilapia (Oreochromis niloticus) Slices under Vacuum and Modified Atmosphere Packaging

2020 ◽  
Vol 15 (3) ◽  
pp. 99
Author(s):  
Md. Abdul Karim ◽  
Masudur Rahman ◽  
Esmout Jahan Alice ◽  
Md. Amanullah ◽  
Md. Akhtar Hossain ◽  
...  
Keyword(s):  
Shelf Life ◽  
Oreochromis Niloticus ◽  
Ph Value ◽  
Control Sample ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Life Extension ◽  
Modified Atmosphere ◽  
Acceptable Limit

In order to develop a proper packaging system for sliced tilapia fish (Oreochromis niloticus), the biochemical and microbiological qualities under control (unsealed package), vacuum package and modified atmosphere packaging with 50% CO2/50% N2 (MAP-1)  and 50% CO2/50% O2 (MAP-2)  were evaluated every three days during 18 days of chilled storage (4±1°C). The pH value was not significantly different (p > 0.05) by treatments until day 9, but significantly lower values (p < 0.05) were observed on day 12 of the storage in all treated samples compared to the control. The total volatile base nitrogen (TVB-N) value progressively increased, but not significantly different (p > 0.05) in all treatments during the entire storage period. The thiobarbituric acid reactive substances (TBARS) amounts were significantly lower (p < 0.05) on day 12 in the vacuum and MAP-1 samples compared to the control sample, and were significantly higher (p < 0.05) on day 6, 9, and 12 of the storage period in MAP-2 samples compared to the control, vacuum and MAP-1 samples. The amounts of pH, TVB-N, and TBARS in all samples did not exceed the acceptable limit in almost the entire storage. The total viable count (TVC) progressively increased with storage time. Nevertheless, TVC values were lower (p < 0.05) on day 6, 9, and 12 of the storage periods in all treatments compared to the control. The TVCs exceeded the acceptable limit (7 log CFU/g) on days 6-9 for control, 9-12 for vacuum, day 12 for MAP-2, and 15 for MAP-1 sample during the storage period. Therefore, the MAP has shown promising results for shelf life extension that can be practiced to display the fishery products with prolonged shelf life. 

The Influence of Rosehip Polyphenols on the Quality of Smoked Pork Sausages, Compared to Classic Additives

2018 ◽  
Vol 69 (8) ◽  
pp. 2074-2080 ◽  
Author(s):  
Valentin Nicorescu ◽  
Camelia Papuc ◽  
Corina Predescu ◽  
Iuliana Gajaila ◽  
Carmen Petcu ◽  
...  
Keyword(s):  
Sodium Nitrite ◽  
Protein Pattern ◽  
Thiobarbituric Acid ◽  
Plate Count ◽  
Microbiological Analysis ◽  
Sample Type ◽  
Protein Patterns ◽  
Sensory Parameters ◽  
Pork Sausages

In this study, pork sausages added with rosehip polyphenols, sodium nitrite, butylated hydroxyanisole (BHA) and tetrasodium pyrophosphate (TSPP) in different concentrations and combinations were prepared, smoked and refrigerated for 20 days. To evaluate the quality of sausages, chemical (peroxide value, thiobarbituric acid reactive substances, and protein patterns), microbiological (total plate count), and sensory (colour, odour, flavour, texture, and taste) analysis were performed. The results showed that the treatment with rosehip polyphenols (0.005%) and sodium nitrite (0.01%) protected sausages against lipid peroxidation as effective as the sodium nitrite (0.01%), BHA (0.005%) and TSPP (0.3%) mixture. Protein pattern of sausages treated only with rosehip polyphenols (0.04%) was similar to that of the sausages treated with sodium nitrite, BHA and TSPP mixture. Microbiological analysis showed that rosehip polyphenols and sodium nitrite combination exhibited a superior antimicrobial activity compared to the one of sodium nitrite, TSPP and BHA mixture. The scores for all sensory attributes continuously decreased with storage time, regardless of the sample type. For all types of sausages, between the refrigeration time, chemical, microbiological, and sensory parameters, statistically significant correlations were found. These findings suggest that rosehip polyphenols could be used as natural additives with multiple preservative functions for smoked sausages.

scholarly journals Improvement of the Quality and the Shelf Life of the High Oxygen Modified Atmosphere Packaged Veal by Superficial Spraying with Dihydroquercetin Solution

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Stefan Georgiev Dragoev ◽  
Alexandar Stoyanov Staykov ◽  
Kiril Petrov Vassilev ◽  
Dessislav Kostadinov Balev ◽  
Dessislava Borislavova Vlahova-Vangelova
Keyword(s):  
Shelf Life ◽  
Amino Nitrogen ◽  
Modified Atmosphere Packaging ◽  
Solution Treatment ◽  
Thiobarbituric Acid ◽  
Acid Value ◽  
Butylated Hydroxytoluene ◽  
Modified Atmosphere ◽  
Solution Map ◽  
Control Samples

The improvement of quality and the shelf life of veal by combination of 80%O2/20%CO2modified atmosphere packaging and superficial spraying with 0.02% dihydroquercetin solutions was studied. The control samples C, air packaged only, D, air packaged sprayed by 0.02% dihydroquercetin solution, MAP, modified atmosphere packaging only, BMAP, modified atmosphere packaging sprayed by 0.02% butylated hydroxytoluene solution, and DMAP, modified atmosphere packaging sprayed by 0.02% dihydroquercetin solution, were measured. The best results were obtained in modified atmosphere packaging sprayed by 0.02% dihydroquercetin solution. Comparisons with control samples were expressed as reduction in acid value with 27.72%, peroxide value with 64.74%, 2-thiobarbituric acid reactive substances (TBARS) with 65.71%, and the pH with 6.18%. The acid and peroxide values, TBARS, and pH were decreased linearly in response when applying the combination of 80%O2/20%CO2modified atmosphere packaging and superficial spraying with 0.02% dihydroquercetin solutions(P<0.05). The changes of amino nitrogen content of modified atmosphere packaging veal were not influenced statistically significantly by 0.02% dihydroquercetin solution(P>0.05). According to results obtained it was concluded that 80%O2/20%CO2modified atmosphere packaged veal stored at0±0.5°C after 0.02% dihydroquercetin solution treatment can preserve its quality and shelf life to 15 dpostmortem.

scholarly journals Application of Propolis Extract in Gelatin Coatings as Environmentally Friendly Method for Extending the Shelf Life of Pork Loin

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 979
Author(s):  
Monika Marcinkowska-Lesiak ◽  
Iwona Wojtasik-Kalinowska ◽  
Anna Onopiuk ◽  
Magdalena Zalewska ◽  
Andrzej Poltorak
Keyword(s):  
Shelf Life ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Quality Parameters ◽  
Plate Count ◽  
Propolis Extract ◽  
Overall Acceptability ◽  
Maximum Inhibition ◽  
Aerobic Plate Count ◽  
Meat Samples

This study evaluates the effects of gelatin coating enriched with ethanolic propolis extract (PE) at 1%, 2% or 3% (w/v) on the quality parameters of pork meat during storage at 2 °C. Physical (pH, weight loss, color) and chemical parameters (percentage contents of metmyoglobin (MetMb), along with thiobarbituric acid reactive substances (TBARS)) were measured, and microbiological (total aerobic plate count (TAPC)) analysis, as well as consumer evaluation, was carried out every four days during the storage period of twelve days. The results indicated that the proposed treatments affected (p < 0.05) the quality characteristics of meat samples. The high prevention of physicochemical alterations and maximum inhibition of microorganisms was obtained for samples stored in gelatin coatings containing 2% and 3% PE. Additionally, despite a slight deterioration in odor on Day 4 in the P3 group, no negative changes in overall acceptability of the P2 and P3 groups compared to uncoated samples were observed. The obtained results indicate a significant role of propolis extract incorporation into gelatin packaging to extend the shelf life of stored pork.

scholarly journals Effect of Active-Edible Coating and Essential Oils on Lamb Patties Oxidation during Display

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 263
Author(s):  
Ana Carolina Pelaes Vital ◽  
Ana Guerrero ◽  
Pablo Guarnido ◽  
Izabella Cordeiro Severino ◽  
José Luis Olleta ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Essential Oils ◽  
Shelf Life ◽  
Meat Quality ◽  
Modified Atmosphere Packaging ◽  
Meat Products ◽  
Thiobarbituric Acid ◽  
Natural Antioxidants ◽  
Edible Coating ◽  
Water Losses

The use of natural products to reduce the use of synthetic additives in meat products, reducing the oxidation and improving the shelf life is a current challenge. Meat quality from lamb patties during 10 days of display on modified atmosphere packaging (MAP) and active-edible coating were tested under six treatments: uncoated patties without coating (CON); patties with alginate coating (EC) and patties with coating and 0.1 or 0.05% of essential oils (EOs) from either thyme (TH 0.1; TH 0.05) or oregano (OR 0.1; OR 0.05). Display and treatment significantly modified (P < 0.001) all the studied meat quality variables (pH, color, water holding capacity, weight losses, thiobarbituric acid reactive substances (TBARS), antioxidant activity). Display produced discoloration and lipid oxidation, however, the samples with essential oils presented lower (P < 0.001) lipid oxidation than the CON or EC groups. Coated samples with or without EOs showed better color (lower lightness but higher redness and yellowness) and lower water losses (P < 0.001) than the CON. The addition of thyme EO caused a decrease (P < 0.001) in the consumer’s overall acceptability, whereas no statistical differences appeared between CON, EC and oregano EO addition. Thus, using EOs as natural antioxidants, especially those from oregano at low dosages (0.05%), could be considered a viable strategy to enhance the shelf life and the product quality of lamb meat patties without damaging the sensory acceptability.

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