scholarly journals Pistachio Hull Extract as a Practical Strategy to Extend the Shelf Life of Raw Minced Beef: Chemometrics in Quality Evaluation

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Khaoula Elhadef ◽  
Karim Ennouri ◽  
Mariam Fourati ◽  
Hajer Ben Hlima ◽  
Sarra Akermi ◽  
...  

The agricultural processing industry produces a notable quantity of by-products rich in bioactive compounds, which can be exploited for agri-food applications. From pistachio industrial processing, pistachio’s hull is one of the major by-products. This work aimed to evaluate the potential of pistachio hull, as a potential source of natural antioxidant, to preserve the meat quality. Here, we investigated the impact of aqueous pistachio hull extract (PHE) at 0.156% (PHE1), 0.312% (PHE2), and 0.625% (PHE3) on the quality of raw minced beef meat stored for 14 days at 4°C. At the end of storage, mesophilic total viable plate, psychotropic and Enterobacteriaceae counts, showed significantly lower ( P < 0.05 ) microbial count in PHE samples. PHE3 revealed a powerful inhibitory effect on lipid/protein oxidation, and sensory characteristics were positively ( P < 0.05 ) affected. Principal component analysis and heat map indicated complex and close synchronized relations among lipid/protein oxidation processes, microbial loads, and sensory attributes. Obtained results using univariate and multivariate statistical analysis underlined the importance of using different mathematical approaches, which are complementary to each other and could provide considerable information about the minced beef meat treated by PHE. Therefore, compared to synthetic antioxidants, PHE could be a clean-label alternative that can protect and enhance the quality of meat products.

This article presents the results of studying the impact of housing and feeding conditions on broiler chickens of Hubbard RedBro cross, as well as the quality of products obtained when using floor and cage content, in a farm. It established that when receiving a mixed feed of own production using feed raw materials grown on a farm without the use of pesticides, a statistically significant decrease in potentially dangerous substances for animal health is recorded. Compared with factory feed, it has reduced the content of pesticides by 14 times, and mercury and arsenic by 24 times, cadmium by five times, and lead by ten times. The results of the study of economic indicators of growing Hubbard RedBro cross broiler chickens, as well as the chemical composition and quality of carcasses, indicated that there was no significant difference between the floor and cell conditions of keeping. Still, the use of a diet based on eco-feeds contributed to a statistically significant decrease in the concentration of toxic metals in the muscles of the poultry of the experimental groups. As a result, it found that the use of the studied compound feed in the diets of broiler chickens increased the indicators of Biosafety and ensured the production of environmentally safe ("organic") poultry meat products.


2020 ◽  
pp. 108201322095997
Author(s):  
Viviana Andrea Velasco-Arango ◽  
José Igor Hleap-Zapata ◽  
Luis Eduardo Ordóñez-Santos

Current pressure on the need to reduce nitrite content in meat products without affecting sensory properties such as color requires research for the development of healthy foods and the improvement of the quality of life of human beings. Fruit by-products are an important source of bioactive compounds, which can be used as natural additives in food processing. The objective of this study was to evaluate papaya epicarp flour as a natural ingredient in nitrite reduction of beef burger. Papaya epicarp samples after lyophilized were ground. A composite central design and a response surface methodology were used in order to analyze the process variables (nitrite and papaya epicarp flour concentrations) on the color of the beef burger. Response variables were carotenoid fractions and CIEL*a*b*. The optimal color-maximizing nitrite/flour ratio in beef burger was found corresponding to 150 mg/kg nitrite/40 mg/kg flour, where the maximum values for β-cryptoxanthin, zeaxanthin, and lycopene were 0.451, 0.447, and 0.251 mg/100 g of sample, respectively, together with the lower value of L* (64.38). This study showed the agro-industrial potential of papaya epicarp flour to reduce nitrite concentrations in this food, in addition, the valuation of this by-product could bring economic and environmental benefits.


2013 ◽  
Vol 8 (2) ◽  
pp. 166-179 ◽  
Author(s):  
J. F. Loret ◽  
L. Cossalter ◽  
S. Robert ◽  
I. Baudin ◽  
M. Conan ◽  
...  

Analytical campaigns were conducted on different drinking water treatment lines in order to characterize filter backwash water and assess the impact of recycling this water at the head of the plant. The pollutants identified in this water are essentially in the form of particles. Recycling this water may consequently increase the concentration of parameters such as turbidity, suspended solids, metals from coagulants and protozoa. On the other hand, no release of pesticides nor significant generation of disinfection by-products was observed during filter backwash with chlorinated water, in the conditions applied in France for chlorination. A modeling approach based on the mass balance of Cryptosporidium oocysts was applied to estimate the impact of recycling on oocysts concentration in the inlet water. A risk of infection was then assessed for each recycling scenario. A similar approach was also applied for amoebae, which have the capacity to colonize filter media, and for metal residues from coagulants. The results of this study demonstrate that two different situations have to be considered separately: • In the case of treatment lines composed of separate sedimentation and filtration steps, recycling at the head of the treatment process, even with no treatment, has no significant consequence on the microbial quality of the inlet water, and generates no additional health risk for the consumer. • In the case of treatment lines with no sedimentation step (direct filtration or UF used alone), recycling untreated water generates an excess of risk for the consumer which is not acceptable. Adding a coagulation / sedimentation step in the recycling circuit is sufficient in that case to keep the risk within acceptable limits.


Author(s):  
V. F. Kaminskyi ◽  
N. M. Asanishvili

Purpose. The aim of the research conducted during 2016-2019 was to determine the impact of technological methods on the indicators of corn grain quality to optimize the elements of growing technology depending on the directions of use in conditions of the Forest-Steppe natural zone of Ukraine. Methods – field, quantitative and weight, chemical, comparative and calculation, mathematical and statistical. Results. On the results of the research, dependences of formation of quality of grain on the content of protein, starch, fat in it and correlation dependencies between these indicators and yield of corn have been revealed. The best quality of grain of a forage and food direction is formed when applying high doses of mineral fertilizers, and for processing on bioethanol the optimal content of starch and protein is guaranteed at optimum and raised level of fertilizing. It was established that the content of protein, starch and fat had less effect on their yield from 1 hectare than the general yield level. The technologies of cultivation of different intensity as to their possible application for the production of grain of different directions of use with the given quality parameters, the yield of protein, starch, fat and bioethanol have been evaluated. Conclusions. The technology of corn growing with complex application of intensification elements in conditions of the Forest-Steppe zone, which includes introduction of N240P120K240 on the background of by-products of its predecessor, application of the soil and insurance herbicide, plant growth and micro-fertilizers is suitable for fodder and food purposes and ensured the yield of 12.1 t/ha of grain with protein content and yield – 10.56% and 1.28 t/ha, fat – 4.29% and 0.52 t/ha, starch – 71.27% and 8.62 t/ha. For processing on bioethanol effective is the technology of corn growing with the introduction of N180P120K180, by-products of the predecessor, soil herbicide and bio-stimulants, which provided a yield of 9.76 t/ha of grain with a starch content of 72.26% for the yield of 7.05 t/ha and yield of bioethanol at the level of 3982 l/ha.


2016 ◽  
Vol 11 (1) ◽  
Author(s):  
Evica Delova Jolevska ◽  
Andovski Ilija

The aim of this paper is to evaluate the influence of trends in retail loan portfolio on the consumption and economic growth of Macedonia. The consumption of population is one of the components of GDP, and one of its drivers is the retail credit activity. On macroeconomic level, there is wide consensus among researchers that credit activity and quality of portfolio is driven by GDP movements, unemployment ratio and indebtedness of population. Also, vice verse the activities in retail segment influence on consumption and indirectly on GDP. So these two linkages enhance between and can result in negative spiral. Negative movements in GDP influence on the quality of portfolio and higher NPL ratio. And higher NPL ratio results in further decrease in credit activity and has additional negative impact on GDP. Because of that is important to determine the causes of credit activity in this segment. The retail portfolio in the last 4 years in Macedonian banking sector is growing continuously, opposite of other Balkan countries. That is why is important to analyze the past growth of retail portfolio and to determine possible weaknesses because of its future impact on GDP. One of the most important drivers that determine the future credit growth is the quality of retail credit portfolio in the moment. Another important aspect for the portfolio trend will be the interest rate environment. There is clear empirical evidence that low interest environment triggers greater credit activity and vice versa. Another important aspect of the credit qrowth, is the maturity of the retail credit portfolio as a way to decrease the monthly installments and to accumulate greater risk on longer term. Special focus of this paper will be the trend in retail loan portfolio after 2008, when the banking system of Macedonia felt the impact from financial crisis. The activities that were taken by the banking sector then can be some guidelines for future crisis. The retail credit growth will be analyzed by products in order better to understand bank strategies and reasons that contributed for such a growth. Also, the analyze of NPL ratio by product will give answer whether the quality of portfolio by products was one of the key drivers for credit activity.


2021 ◽  
Vol 10 (1) ◽  
pp. 25-30

This article presents the results of studying the impact of housing and feeding conditions on broiler chickens of Hubbard RedBro cross, as well as the quality of products obtained when using floor and cage content, in a farm. It established that when receiving a mixed feed of own production using feed raw materials grown on a farm without the use of pesticides, a statistically significant decrease in potentially dangerous substances for animal health is recorded. Compared with factory feed, it has reduced the content of pesticides by 14 times, and mercury and arsenic by 24 times, cadmium by five times, and lead by ten times. The results of the study of economic indicators of growing Hubbard RedBro cross broiler chickens, as well as the chemical composition and quality of carcasses, indicated that there was no significant difference between the floor and cell conditions of keeping. Still, the use of a diet based on eco-feeds contributed to a statistically significant decrease in the concentration of toxic metals in the muscles of the poultry of the experimental groups. As a result, it found that the use of the studied compound feed in the diets of broiler chickens increased the indicators of Biosafety and ensured the production of environmentally safe ("organic") poultry meat products.


2021 ◽  
Vol 854 (1) ◽  
pp. 012091
Author(s):  
Aleksandra Ranitovic ◽  
Lato Pezo ◽  
Olja Sovljanski ◽  
Ana Tomic ◽  
Dragoljub Cvetkovic ◽  
...  

Abstract In this study, the microbiological quality of 72 minced beef meat samples collected during six months from a local butcher was defined after laboratory analysis and developing advanced mathematical models. This new simultaneous approach provided adequate precision for the prediction of the microbiological profile of minced beef meat as one of the easily spoiled products with a short shelf life. For the first time, an artificial network model was developed to predict the microbiological profile of beef minced meat in a fast-food restaurant according to meat and storage temperatures, butcher identification, and work shift. A concurrent statistical study of practical analysis and the developing mathematical models provided adequate precision for the prediction of the microbiological profile of minced beef meat. The developed ANN provided a good prediction of the microbiological profile of beef minced meat with an overall R2 of 0.867 during the training cycle.


Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1543 ◽  
Author(s):  
Issmat I. Kassem ◽  
Nivin A Nasser ◽  
Joanna Salibi

Meat is an important source of high biological value proteins as well as many vitamins and minerals. In Lebanon, beef meats, including raw minced beef, are among the most consumed of the meat products. However, minced beef meat can also be an important source of foodborne illnesses. This is of a major concern, because food safety in Lebanon suffers from well-documented challenges. Consequently, the prevalence and loads of fecal coliforms and Escherichia coli were quantified to assess the microbiological acceptability of minced beef meat in Lebanon. Additionally, antibiotic resistance phenotypes of the E. coli were determined in response to concerns about the emergence of resistance in food matrices in Lebanon. A total of 50 meat samples and 120 E. coli isolates were analyzed. Results showed that 98% and 76% of meat samples harbored fecal coliforms and E. coli above the microbial acceptance level, respectively. All E. coli were resistant to at least one antibiotic, while 35% of the isolates were multidrug-resistant (MDR). The results suggest that Lebanon needs to (1) update food safety systems to track and reduce the levels of potential contamination in important foods and (2) implement programs to control the proliferation of antimicrobial resistance in food systems.


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