Shelf-life Of Poultry Meat Research Articles

Influence on quality indicators and shelf life of radiation treated poultry meat

Radiation treatment has emerged as a promising technology in food processing, especially for enhancing safety and extending shelf life of poultry meat. The purpose of the study was to ensure the safety and extend the shelf life of poultry exposed to gamma radiation. Radiation doses of 2 kGy, 4 kGy, 6 kGy, 8 kGy were used during irradiation, sensory evaluation and physico-chemical analyzes were carried out, comparative characteristics of irradiated and non-irradiated poultry meat samples were presented. The results showed that the shelf life of poultry meat irradiated at a temperature of 0+2℃ was extended up to 14 days. The article analyzes the effect of gamma rays on fat and moisture, it is shown that the moisture content of poultry meat decreases with an increase in the dose of radiation, at a dose of 8 kg it decreased by 12% in 14 days. It was shown that moisture content of poultry meat samples increased on day 5, after which destruction occurred. It was also shown that the fatty acid content of irradiated poultry meat samples at doses of 6 kGy and 8 kGy decreases with the extension of the storage period. Among all the tested radiation doses, 2kGy, 4kGy showed to be more effective compared to non-irradiated poultry meat with better performance in physico-chemical analysis, be it sensory evaluation. Understanding the effects of radiation on poultry is critical to ensuring consumer safety and maintaining product quality throughout the supply chain.

Production and meat quality of broiler chickens with the use of a probiotic complex of bifidobacteria and lactobacilli

The prohibition of antibacterial agents in animal husbandry has spurred research into the creation and study of new probiotic supplements aimed at normalizing the gut microbiota to ensure colonization resistance of the host organism. This resistance prevents the colonization of the gastrointestinal tract by pathogenic and opportunistic microflora. Scientists from many countries have developed a range of preparations based on the normal gut microbiota, such as lactobacilli and bifidobacteria, which are used to maintain and restore the biocenosis of the digestive tract. These probiotics are also effective therapeutic and preventive agents for poultry digestive tract diseases, helping correct gut microbiocenosis. In our study, we investigated the impact of the combined probiotic preparation "TIMM-P" on the productive characteristics of poultry and the quality and preservation of broiler chicken meat. This study determined clinical indicators, absolute and average daily weight gains, the meat quality of broiler chickens, and its chemical composition under the influence of the probiotic supplement. It was found that administering "TIMM-P" in courses on days 1–5, 21–25, and 30–35 positively influences the growth of muscle tissue in poultry. Determination of the chemical composition of meat in 42-day-old experimental broiler chickens indicated a significant increase in total protein content in the muscle tissue using the probiotic. Additionally, the absolute and average daily weight gains of the broiler chickens in the experimental group significantly increased during days 15–28 and 29–42 of the study. We observed a significant impact of the probiotic preparation on extending the shelf life of poultry meat based on the study of organoleptic and chemical indicators of broiler chicken meat during refrigerated storage. On the 7th and 9th days of storage, the carcasses of the experimental group that received the probiotic showed a significant decrease in pH levels, acid number, and peroxide number of the fat in the meat. Thus, oral administration of the probiotic preparation increases live weight gains, improves meat quality indicators of broiler chickens, and extends its shelf life. The obtained results have important practical significance as they scientifically substantiate the use of probiotic preparation as a means to preserve livestock, increase live weight gains of broiler chickens, and improve poultry meat quality. Therefore, the complex probiotic preparation "TIMM-P" can be recommended for use in broiler chicken farming.

Effects of in-package cold plasma treatment on poultry breast meat packaged in high CO2 atmosphere

High CO2 in packages significantly extends microbiological shelf life of poultry meat. Cold plasma is an emerging antimicrobial treatment, which generates various reactive gas species and inactivates microbials effectively. The objective of this study was to explore the potential effects of combining high CO2 package and in-package cold plasma (IPCP) treatments on the quality and safety of raw chicken breast meat. Non-inoculated samples and samples inoculated with Campylobacter jejuni and Salmonella Typhimurium were packaged in 0, 30, 70, or 100% CO2 (with make-up gas N2) and treated with IPCP at 70 kV for 3 min. Ozone formation, microbial counts, drip loss, pH, and color were measured. There was no interaction effect between high CO2 package and IPCP on microbial counts, drip loss, and color measurements. IPCP reduced spoilage microbial growth by 0.43 log (from 7.00 log to 6.57 log, P = 0.033) and C. jejuni populations by 0.67 log (from 4.82 log to 4.15 log, P < 0.001) on meat surface but did not affect S. Typhimurium (P = 0.206). Increased CO2 in packages had more effect on spoilage microbial growth (more than 1.5 log from 8.08 log to 6.35 log, P < 0.001) and S. Typhimurium populations (more than 0.5 log from 4.94 log to 4.39 log, P = 0.004) than IPCP but did not affect C. jejuni (P = 0.163). IPCP resulted in increases in changes in L* by 1.67 units (0.70 versus 2.37, P = 0.016) and a* values by 0.56 units (0.73 versus 1.29, P < 0.001) and decreases in b* values by 0.91 units (0.46 versus -0.45, P = 0.015). High CO2 levels caused increases in changes in L* values by 4.35 units (-0.82 versus 3.53, P < 0.001) with no effects on a* and b* values (P > 0.05). Data demonstrate that there are no combined effects by high CO2 package and IPCP on meat quality and safety of raw chicken breast meat under our experimental conditions. Either high CO2 package or IPCP can retain microbial quality and safety, even though they may cause changes in appearance of stored chicken breast meat.

The Potential for Reducing Food Waste through Shelf-Life Extension: Actionable Insights from Data Digitization

Digital, practical, user-friendly tools generate actionable insights for the food industry to develop effective food waste reduction strategies. This study aimed to develop a methodology behind a digital food waste estimator that may be used to calculate the potential food waste reduction and the environmental and nutritional reach impact by extending the shelf life of foods. The methodology for this tool incorporates a straightforward algorithm and robust data sources. Additionally, two case studies were analyzed and discussed to demonstrate the tool’s application and effectiveness. The results from the food waste estimator revealed that by increasing the shelf life of poultry meat by 40%, waste could be reduced by 6–7%, CO2 emission by 457–567 kg, and water usage by 656,571–814,149 L/1000 kg of product. Meanwhile, by increasing the shelf life of bread by 20%, waste can be reduced by 5–6%, CO2 emission by 155–192 kg, and water usage by 248,000–307,520 L/1000 kg of product. This study demonstrated that the fundamental mathematical approach to and assumptions behind the food waste estimator can be effectively used to determine the potential for food waste reduction and environmental impact by extending a product’s shelf life. Extending the shelf life of food may reduce environmental impact and food waste.

Content of amino acids and biogenic amines in stored meat as a result of a broiler diet supplemented with β-alanine and garlic extract

Poultry meat is a highly esteemed product among consumers. However, the emphasis on increasing body weight has led to a rise in the proportion of rapidly shrinking fibers, adversely affecting the quality and shelf life of poultry meat. With a growing awareness of dietetics among consumers, there is an increasing challenge to produce chicken meat that is not only free of antibiotics but also beneficial for dietary and health reasons. Biogenic amines (BA) can serve as indicators of meat freshness and quality. While they play vital roles in the body, excessive consumption of BA can have toxic and carcinogenic effects. The objective of this study was to examine the impact of supplementing feed with garlic extract and β-alanine (β-Ala) on the formation of BA and amino acid (AA) levels in the breast and leg muscles of chickens stored under aerobic chilling conditions. The muscles were obtained from chickens fed with garlic extract and β-Ala in quantities of 0.5 and 2% for each additive, as well as 0.5 and 2% of their combination. Analyses were conducted on d 1, 3, 5, 7, and 10 of storage. β-Ala supplementation increased the proportion of this AA in breast (P < 0.01) and leg muscles (P < 0.01), along with a rise in the proportion of nonessential AA (NEAA; sum of aspartic, aspartic acid, glutamic, glutamic acid, serine, β-Ala, and proline) (P < 0.01). The levels of BA changed during storage in breast and leg muscles (P < 0.001). The applied diet significantly influenced the formation of putrescine (P = 0.030), phenylethylamine (P = 0.003), agmatine (P = 0.025), and total BA (P < 0.001) in breast muscles. On the 10 d of storage, the breast muscles exhibited the lowest BA index (BAI) in the group, with a diet supplemented with 0.5% garlic extract and 0.5% β-Ala (P < 0.05). The leg muscles showed a similar BA trend as the breast muscles. These supplements may be utilized in production to augment the protein content of chicken muscles and potentially decrease the BAI index during meat storage.

Unleashing the potential of bio‐nanoparticles from invasive cattail as reinforcement in packaging film to extend the shelf life of poultry meat

AbstractGrowing awareness of fossil depletion, plastic pollution, and food spoilage has led to the exploration of bioresources as alternatives for producing packaging films for highly perishable food. In this study, we utilized a novel integrated process using natural‐based solvents to isolate cellulose, hemicellulose, and lignin from cattail leaves, an abundant invasive plant. The process yielded cellulose, hemicellulose, and lignin with recovery yields of 96.2 ± 1.2%, 92.5 ± 1.6%, and 94.3 ± 0.7% and purities of 96.3 ± 0.6%, 97.7 ± 0.9%, and 98.9 ± 0.5%, respectively. Spherical nanoparticles (60–90 nm) were synthesized through ultrasonication and their structural purity were confirmed by FTIR, XRD, and XPS analyses. These nanoparticles were incorporated as reinforcement into chitosan (C) films. Cellulose nanoparticles (CNP) and lignin nanoparticles (LNP) significantly enhanced film tensile strength (up to 27% at 1.5% loading), while hemicellulose nanoparticles (HNP) increased film elongation (up to 42%). The complex structures of HNP and LNP promoted higher free radical formation, resulting in enhanced antioxidant activity of up to 80% and 82%, respectively. LNP‐reinforced films exhibited superior antimicrobial properties due to their polyphenolic structure. Preservation tests were conducted by packaging poultry meat in the films and refrigerating it for 30 days. Poultry meat packed in LNP‐reinforced film maintained its quality within permissible limits throughout the entire 30 day period, while LDPE, plain chitosan, C‐CNP, and C‐HNP films reached consumable limits on the 5th, 10th, 15th, and 25th days, respectively. This study highlights the production of sustainable nanoparticles from invasive crops and their application in the development of active packaging films for fresh poultry meat.

Effect of Ozon Treatment on Shelf-Life of Poultry Meat in the Logistic Chain

Abstract A study was carried out to determine the influence of ozon treatment on the shelf-life of poultry meat. The following doses of gaseous ozone were used: 0 ppm for 0 min, 10 ppm for 1 min, 10 ppm for 5 min, 10 ppm for 15 min, 100 ppm for 1 min, 100 ppm for 5 min, and 100 ppm for15 min. Treated and untreated samples were stored at 4°C for a maximum of 3 days and microbiologically examined on the 1st, 2nd and 3rd day of cold storage. The textural properties and water content were also analyzed. The present study showed that the most desirable color change was recorded after the 3rd day of storage, on the samples treated with gaseous ozone of 10 ppm for 15 min. Regardless of exposure time and the gas dose used, ozone has been shown to effectively reduce meat hardness. Although the analyzes performed had non-significant effects on water content and microbiological load during post-treatment storage at 4 °C, our findings confirmed the effectiveness of the ozone gas used on extending shelf life of the examined poultry meat by influencing their texture profile and color parameters.

Effect of Iraqi Propolis on Shelf Life of Poultry Meat

Effect of Iraqi Propolis on Shelf Life of Poultry Meat

Effects of Chemical Decontamination Methods on the Shelf Life of Poultry Meat

Son yıllarda sosyoekonomik nedenlerden kaynaklı kanatlı eti ve ürünlerine ilgi oldukça fazladır. Kanatlı etlerinin doğal florası üretim şartlarından kaynaklı çeşitli kontaminasyonlara maruz kaldıkları için önemli miktarda mikrobiyal yüke sahiptir. Bu nedenle güvenilir gıda üretmek için kanatlı etinin korunması ve muhafazası amacıyla birçok yöntem geliştirilmektedir. Bu çalışmada kanatlı etlerinin raf ömrünü uzatabilmek için kimyasal dekontaminasyon yöntemleri incelenmiştir.

Antimicrobial Interventions in Poultry Processing to Improve Shelf Life and Safety of Poultry Meat: A Review with Special Attention to Salmonella spp.

Poultry meat is one of the most popularly consumed meats worldwide. With the increased consumption, the poultry industry is also facing major challenges in maintaining of safety and shelf life of the poultry meat. Microbial concerns related to poultry meat comprise of meat safety and shelf life as poultry meat is prone to contamination with spoilage as well as pathogenic microorganisms. Poultry may be contaminated with pathogenic microorganisms such as Salmonella spp. at various processing steps, posing significant health risk to the consumers. To reduce the predominance of food-borne pathogens such as Salmonella spp. as well as spoilage microorganisms, poultry processors can employ a multi-hurdle approach wherein antimicrobial interventions are applied at various steps of processing. This article reviewed different poultry processing steps and the antimicrobial interventions used in the poultry processing sector to improve safety, shelf life, and quality of poultry meat. This review provides comprehensive knowledge on safety of poultry meat with special attention to Salmonella spp. for the poultry industry as well as researchers throughout the world.

Effects of Microencapsulated Blend of Organic Acids and Essential Oils as a Feed Additive on Quality of Chicken Breast Meat.

Simple SummaryChicken meat is largely consumed around the world, with an increasing demand in recent years. Unfortunately, chicken meat is very susceptible to oxidative deterioration; therefore, poultry industries often use synthetic dietary additives to improve meat shelf-life. However, due to the public’s growing concern about the potential toxic effect of the synthetic additives, there is an increasing interest in natural antioxidant compounds. Among these, organic acids and essential oils could represent a favourable option to improve the characteristics of chicken meat. The aim of this study was to evaluate the dietary supplementation of organic acids (sorbic and citric) and essential oils (thymol and vanillin) on the quality and shelf-life of broiler meat. The additive was supplemented for the entire growing cycle at the level of 0.5% (as a feed additive). This dietary strategy led a reduction in intramuscular fat content and an overall improvement in fatty acid profile. Moreover, the dietary supplementation of organic acids and essential oils reduced the lipid oxidation in cooked meat, whereas minor changes were observed for colour and lipid stability and for microbial loads in raw meat.The present study aims to investigate the effect of dietary supplementation based on a blend of microencapsulated organic acids (sorbic and citric) and essential oils (thymol and vanillin) on chicken meat quality. A total of 420 male Ross 308 chicks were randomly assigned to two dietary treatments: the control group was fed with conventional diet (CON), while the other group received the control diet supplemented with 0.5% of a microencapsulated blend of organic acids and essential oils (AVI). In breast meat samples, intramuscular fat content and saturated/polyunsaturated fatty acids ratio were reduced by AVI supplementation (p < 0.05). Moreover, atherogenic (p < 0.01) and thrombogenic (p < 0.05) indices were lower in AVI than CON treatment. AVI raw meat showed a lower density of psychrotrophic bacteria (p < 0.05) at an initial time, and higher loads of enterococci after 4 days of refrigerated storage (p < 0.05). No contamination of Listeria spp., Campylobacter spp., and Clostridium spp. was found. TBARS values of the cooked meat were lower in the AVI treatment compared to CON (p < 0.01). Among colour parameters, a*, b* and C* values increased between 4 and 7 days of storage in AVI cooked meat (p < 0.05). Overall, organic acids and essential oils could improve the quality and shelf-life of poultry meat.

Packaging as a tool to improve the shelf life of poultry meat

In this paper, recent findings about poultry meat spoilage and packaging systems are discussed. Poultry meat is widely consumed and its consumption has been growing for decades. Raw poultry meat is a highly perishable food with short-term shelf life, and thus, novel strategies for maintaining safety and quality must be applied to meet the demands of the modern consumer. The main cause of meat spoilage is bacterial growth and the goal of this paper is to highlight the importance of GHP (Good Hygiene Practice) in the chain of processing, packaging, storage, and distribution of poultry meat in order to avoid economic losses and meet consumer expectations.

Influence of Different Production Systems on the Quality and Shelf Life of Poultry Meat: A Case Study in the German Sector

Production-specific factors, such as breeding, diet, and stress, are known to influence meat quality, but the effect of different husbandry systems on the development of quality parameters and shelf life has hardly been investigated. Thus, the aim of the study was the investigation of an alternative production system based on a slow-growing, corn-fed, and antibiotics-free chicken line compared with conventional poultry production. Additionally, the effect on meat quality, microbiology, and spoilage was analyzed. In total, 221 breast filets from a German poultry meat producer were investigated. Nutritional, biochemical, and cooking loss analyses were conducted on a subset of samples 24 h after storage. The rest of the samples were stored aerobically at 4°C, and the spoilage process was characterized by investigating pH, color, lipid oxidation, microbiology, and sensory attributes subsequently every two days during storage. The alternative production line showed a significantly healthier nutritional profile with a higher protein and lower fat content. Additionally, the amount of L-lactic acid and D-glucose was significantly higher than in the conventional production line. The color values differed between both production lines, with the corn-fed line displaying more yellowish filets. The lipid oxidation and microbial spoilage were not affected by the production line. The shelf life did not differ between the investigation groups and was deemed 7 days in both cases. Despite the highest severity of white striping being observed most in the conventional production line, there was no overall difference in the incidence among groups. The purchase decision was affected by the occurrence of white striping and showed a tendency for a higher acceptance for the alternative production line.

Inhibition of nalidixic acid-resistant salmonella on marinated chicken skin.

Marination is widely used to enhance flavor and increase consumer acceptability of meat and poultry products. The impact of such marination on the safety and shelf life of poultry meat was evaluated in this study. A series of experiments were conducted to determine the efficacy of teriyaki and lemon pepper marinades against multiple strains of nalidixic acid (NAL)-resistant Salmonella. NAL-resistant Salmonella serovar (Typhimurium, Heidelberg, and Senftenberg) cultures were inoculated onto chicken skin at 0.6 to 3.14 log CFU/g in a 12-well titer plate. Inoculated chicken skin was exposed to teriyaki or lemon pepper marinades for up to 32 h and stored at 4 or 25°C to determine the prevalence of Salmonella. To determine Salmonella survival, a three-strain cocktail of Salmonella was inoculated at low (ca. 4 log CFU/g) and high (8 log CFU/g) levels onto chicken skin that was then marinated with either teriyaki or lemon pepper marinade for up to 32 h and stored at 4 or 25°C. Prevalence of Salmonella was significantly reduced (P ≤ 0.05) by teriyaki marinade at all levels of contamination regardless of storage temperature. Lemon pepper marinade reduced Salmonella prevalence (P ≤ 0.05) at low levels of contamination (10¹ and 10² CFU/g), whereas no significant effect (P > 0.05) was observed at higher levels of contamination. Marination of chicken skin with teriyaki marinade greatly reduced Salmonella prevalence and survival (P ≤ 0.05) regardless of the storage temperature, indicating the antimicrobial potential of this marinade for poultry and meat products.

Development and validation of a mathematical model to describe the growth of Pseudomonas spp. in raw poultry stored under aerobic conditions

Poultry meat spoils quickly unless it is processed, stored, and distributed under refrigerated conditions. Research has shown that the microbial spoilage rate is predominantly controlled by temperature and the spoilage flora of refrigerated, aerobically-stored poultry meat is generally dominated by Pseudomonas spp. The objective of our study was to develop and validate a mathematical model that predicts the growth of Pseudomonas in raw poultry stored under aerobic conditions over a variety of temperatures. Thirty-seven Pseudomonas growth rates were extracted from 6 previously published studies. Objectives, methods and data presentation formats varied widely among the studies, but all the studies used either naturally contaminated meat or poultry or Pseudomonas isolated from meat or poultry grown in laboratory media. These extracted growth rates were used to develop a model relating growth rate of Pseudomonas to storage or incubation temperature. A square-root equation [Ratkowsky, D.A., Olley, J., McMeekin, T.A., and Ball, A., 1982. Relationship between temperature and growth rate of bacterial cultures. J. Appl. Bacteriol. 149, 1–5.] was used to model the data. Model predictions were then compared to 20 Pseudomonas and 20 total aerobes growth rate measurements collected in our laboratory. The growth rates were derived from more than 600 bacterial concentration measurements on raw poultry at 10 temperatures ranging from 0 to 25 °C. Visual inspection of the data and the indices of bias and accuracy factors proposed by Baranyi et al. [Baranyi, J., Pin, C., and Ross, T., 1999. Validating and comparing predictive models. Int. J. Food Micro. 48, 159–166.] were used to analyze the performance of the model. The experimental data for Pseudomonas showed a 4.8% discrepancy with the predictions and a bias of + 3.6%. Percent discrepancies show close agreement between model predictions and observations, and the positive bias factor demonstrates that the proposed model over-predicts growth rate, thus, can be considered fail-safe. Both Pseudomonas spp. as well as total aerobes may be considered good indicators of poultry spoilage. A properly constructed and validated model for Pseudomonas growth under aerobic conditions can provide a fast and cost-effective alternative to traditional microbiological techniques to estimate the effects of storage temperature on product shelf-life. The model developed here may be used to determine the effect of both initial Pseudomonas concentration and storage temperature on shelf-life of poultry meat under aerobic storage conditions over temperatures from 0 to 25 °C.

The influence of acid and alkaline treatments on pathogens and the shelf life of poultry meat

A study was carried out to determine the influence of acid and alkaline treatments on pathogens and the shelf life of poultry meat. The following acid and alkaline substances were used: 1% lactic acid, (Purac R), a 1% formulation of active constituents (sugars, foodstuff phosphates, ascorbic/isoascorbic acid or their inorganic salts) with lactic acid as activator (Glutamal bioactive R) and 10% trisodium phosphate (TSP). A total of 360 poultry carcasses were collected from a poultry processing plant and subjected to spray treatments at a pressure of 300 kPa and dipping treatments using the acids and alkali. Water was used as control. The carcass rinse method was used as the method of sampling. The microbiological data obtained were subjected to statistical analyses using the multifactor analysis of variance (ANOVA). Sensory evaluations were conducted using a seven-member panel to determine the acceptability or otherwise of the treated carcasses. Mean log 10 reductions (cfu/ml) achieved, based on the different treatments, modes of treatment and days of storage were between 0.4 and 2.5 for APC; 0.5 and 2.7 for Enterobacteriaceae; 0.2 and 2.4 for Pseudomonas, and 0.2 and 1.1 for Lactobacillus. The dipping treatment gave the best overall reduction effect. About 60% of the carcasses examined (day 0, only) were positive for salmonella. The sensory evaluations recorded high acceptability scores. The findings show that acids and alkaline substances are viable tools for the decontamination of poultry carcasses.

The Effects of Antibiotic Treatments, Packaging Films, and Storage upon Flavor, Odor, and Appearance of Cut-Up Fryers

THE consumer bases his estimate of the freshness of poultry upon its flavor, odor, and appearance. Flavor is the primary criterion of the quality of cooked chicken meat. However, the appearance of the packaged bird, odor when the film is opened, color and feel of the uncooked meat, and aroma during cooking also influence consumer satisfaction.Economical, continuous processing and efficient marketing demand an increased shelf-life for fresh poultry. In response, treatments with antibiotics and improved packaging materials have been developed. These developments, combined with high standards of plant sanitation and controlled refrigeration near 32°F., offer prolonged shelf-life in respect to spoilage organisms. Tests for consumer acceptability should complement the microbiological tests.Use of limited amounts of chlortetracycline (aureomycin) and oxytetracycline (terramycin), for preserving the freshness of poultry, has been approved by the Food and Drug Administration (1955 Food and Drug Administration (1956). Shelf-life of poultry meat was increased from 8.7 to 14 days …