EFFECT OF LEMON PEEL AND PULP EXTRACT ON SOME LOCAL KURDISH RAM MEAT QUALITIES AND ITS SHELF LIFE

2020 ◽  
pp. 140-153

To investigate the effectiveness of adding lemon peels and pulp extracts on some quality properties and shelf-life of the sheep longisimussdorsi muscle during refrigerated storage at 4±1°C for 0, 4, and 8 days for this purpose am meat trim of visible fat and connective tissue, they cut in small cubes. The meat samples divide into four equal proportions and mix with different concentrations of lemon peel and pulp extract according to the following formulations: Control; T1 1%; T2 2% and T3 3% of lemon peel and pulp extract, by applied immersion method. The results showed acceptable results of moisture content, Water-holding capacity cooking loss, thiobarbituric acid, met-myoglobin, myoglobin, and sensory traits of the samples treated with lemon peel in comparison to the control group. The phiso-chemical traits changed during the storage periods but the meat sample treated with lemon extract was more stable than control groups. These results suggested that using lemon peels and pulp extracts to maintain physio-chemical properties of ram meat and extend shelf-life during refrigerated storage, which may have implications of meat processors.

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 716
Author(s):  
Milad Yaghoubi ◽  
Ali Ayaseh ◽  
Kazem Alirezalu ◽  
Zabihollah Nemati ◽  
Mirian Pateiro ◽  
...  

The present study was conducted to assess the impact of chitosan coating (1%) containing Artemisia fragrans essential oil (500, 1000, and 1500 ppm) as antioxidant and antimicrobial agent on the quality properties and shelf life of chicken fillets during refrigerated storage. After packaging meat samples, physicochemical, microbiological, and organoleptic attributes were evaluated at 0, 3, 6, 9, and 12 days at 4 °C. The results revealed that applied chitosan (CH) coating in combination with Artemisia fragrans essential oils (AFEOs) had no significant (p < 0.05) effects on proximate composition among treatments. The results showed that the incorporation of AFEOs into CH coating significantly reduced (p < 0.05) pH, thiobarbituric acid reactive substances (TBARS), and total volatile base nitrogen (TVB-N), especially for 1% CH coating + 1500 ppm AFEOs, with values at the end of storage of 5.58, 1.61, and 2.53, respectively. The coated samples also displayed higher phenolic compounds than those obtained by uncoated samples. Coated chicken meat had, significantly (p < 0.05), the highest inhibitory effects against microbial growth. The counts of TVC (total viable counts), coliforms, molds, and yeasts were significantly lower (p < 0.05) in 1% CH coating + 1500 ppm AFEOs fillets (5.32, 3.87, and 4.27 Log CFU/g, respectively) at day 12. Organoleptic attributes of coated samples also showed the highest overall acceptability scores than uncoated ones. Therefore, the incorporation of AFEOs into CH coating could be effectively used for improving stability and shelf life of chicken fillets during refrigerated storage.


Author(s):  
Mohamed Hamada ◽  
Mabrouk Abd Eldaim ◽  
Said I. Fathalla ◽  
Ayman El Behiry ◽  
Mohamed Alkafafy

This study was implemented to assess the mechanism by which Moringa oleifera leaf extract (MOLE) improves the quality and prolongs shelf-life of the broilers’ breast meat. Ninety Cobb chicks were randomly allocated to 3 groups. A control group received the standard diet, whereas the other two groups received diets containing MOLE at the doses of 250 and 500 mg/kg for 21 days. Inclusion of MOLE in broilers diet significantly reduced the detrimental changes in the overall sensory attribute scores, characteristic color and odor, and the loss of breast muscle elasticity during storage. Furthermore, it significantly reduced concentrations of thiobarbituric acid, total volatile nitrogen, non-esterified fatty acids, and peroxide, during storage compared to the control samples. No effect on the concentrations of heavy metals, such as copper, cadmium, and lead, was observed. Decomposition of samples was delayed as indicated by lower pH values and higher sensory scores at 4 and 6 days of storage in the MOLE groups. Reduced contamination with E. coli and Salmonella species indicated an antibacterial effect of MOLE. Finally, the present study highlights that MOLE supplementation may play a role in improving quality and shelf-life of the chilled breast meat in broilers.


Foods ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 635 ◽  
Author(s):  
Sasa Novakovic ◽  
Ilija Djekic ◽  
Anita Klaus ◽  
Jovana Vunduk ◽  
Vesna Djordjevic ◽  
...  

The antioxidant and antimicrobial properties of Cantharellus cibarius decoction and the effect of mushroom addition on the physicochemical and microbiological properties of frankfurters during refrigerated storage were studied. Mushroom addition significantly reduced (p < 0.05) the formation of total aerobic mesophilic bacteria during storage. Regarding the texture, there was no negative effect in frankfurters with the mushroom added, compared to the control group of sausages. Generally, C. cibarius can be used as a natural ingredient in order to prevent the growth of microorganisms in cooked pork sausages, causing an extension in shelf life during chilled storage.


2006 ◽  
Vol 12 (2) ◽  
pp. 133-143 ◽  
Author(s):  
M. I. Aksu ◽  
M. Karaoglu ◽  
N. Esenbuga ◽  
M. Kaya ◽  
M. Macit

This research was carried out to determine the effects of meat piece, packaging type and storage time on the pH, thiobarbituric acid reactive substances (TBARS), total mesophilic, total psychrotrophic, lactic acid and Enterobacteriaceae counts at 0, 2, 4, 6, 8, 10 and 12 days of storage, in broilers fed diets containing 0% (H0), 1% (H1), 2% (H3) and 3% (H3) levels of ram horn hydrolisate (RHH) in daily water requirements of chicks during experimental periods. A total of 240 male broiler chicks ( Ross-308) were allocated to four dietary treatments (H0, H1, H2 and H3 groups) in a completely randomized experimental design. RHH-added water and feed were offered ad libitum consumption for the first 28 days of the experiment; and then they were fed only a basal diet and normal drinking water to the end of the study. At the end of the trial all the birds were slaughtered, then standard dissection of carcasses, breasts and drumsticks were divided into two groups for vacuum and aerobic packaging. Packed breasts and drumsticks were stored at 3 ± 0.5°C for 12 days, and the pH, TBARS and microbial counts were determined during the storage period. The use of ram horn hydrolysate at 1% and 3% levels in broiler diets increased pH values of breast fillets and drumstick meats ( p < 0.01). TBARS value ( p < 0.01) and Enterobacteriaceae counts ( p < 0.01) decreased compared to the control group. pH, TBARS and Enterobacteriaceae counts were lower ( p < 0.05) in breast fillets than drumstick muscles. The pH, TBARS and bacteria counts increased during storage ( p < 0.01). The vacuum packaging preserved the meat quality properties of broiler breast fillets and drumsticks meats ( p < 0.05). The results obtained from the present study, concluded that the use of ram horn hydrolysate in broiler diet decreased lipid oxidation of the broiler breast and drumstick meats, and the level of Enterobacteriaceae was also reduced in vacuum packed samples during the storage period.


Author(s):  
Buket ER DEMİRHAN ◽  
Burak DEMİRHAN

In the present study, the effect of different salt concentrations on some quality properties such as the total number of coliform bacteria, texture, cooking loss, total salt content, metmyoglobin, pH, the water activity of steaks prepared from longissimus dorsi muscle of fresh beef was investigated. For this purpose, steaks prepared from longissimus dorsi muscle were dipped in marination brine in four different concentrations; 0% (control group), 1.5% NaCl, 2% NaCl and 2.5% NaCl, and marinated for 24 hours at +4 °C. The initial crude protein, crude fat, pH, moisture, and ash contents of beef were determined as 20.50%, 5.80%, 6.13, 72.63%, 1.07%, respectively. In the cooked meat samples, the hardness, chewiness and gumminess of the samples marinated with 1.5% and 2% NaCl was found to be higher than the control group. Metmyoglobin content of the meat samples marinated with NaCl is lower than the control group. The results revealed that the total number of coliform bacteria decreased drastically in parallel with the increase in salt concentration. As a result, the changes in the quality of the bovine longissimus dorsi muscle with different salt concentrations and marination were investigated, and positive effects on the textural properties and coliform bacterial load of the meat were observed.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 426-427
Author(s):  
Yuli A Penã-Bermúdez ◽  
Richard R Lobo ◽  
Tamyres Amorim ◽  
Danny Alexander Rojas Moreno ◽  
Annelise Aila Gomes Lobo ◽  
...  

Abstract In the conservation of meat, antioxidant substances are used to help to increase meat’s shelf-life, since it is a product susceptible to oxidation. Most of these substances are synthetic origin and their long-term use can affect human health, because of that, change those chemicals to natural additives is a goal. That substances can be used directly in the meat or added to animal feed and its compounds can keep meat shelf-life by keeping the physical-chemical characteristics of the meat and provide benefits to the health of consumers. So the objective of this project is to use yerba mate extract (Ilex paraguariensis St. Hilaire) as a natural antioxidant in the quality of lamb meat, verifying shelf life. Samples were collected the muscle Longissimus (L) from 36 lamb (Îlle de France x Dorper x Santa Inês), those animals was divided at 4 groups receiving one of the diets: T1, T2, T3 and T4 (0,1, 2 and 4% of extract). The meat samples were exposed in plastic film during 0, 3 and 6 days, analyzed the values of pH, color (brightness=L, red value=a, yellow=b) e TBARS (reactive thiobarbituric acid). All data were statistically evaluated using the MIXED procedure of the statistical package SAS. The results show that pH, color and TBARS values were influenced by the exposure time (P &lt; 0.0001); since as the exposure time increases, the meat more easily oxidizable. The dietary treatment at pH (P 0.2376), L*, a* and b* parameters (P0.1040), (P0.4207) and (P0.0029) respectively, in addition to the lipid oxidation value (P 0.4492) did not affect these parameters. The interaction Diet × Time had no effect on the pH value (P 0.1601), nor for the values of color L*, a*, and b* (P 0.8003), (P 0.7063) and (P 0.1369) as well as for the values of TBARS (P 0.4953).


2020 ◽  
Vol 67 (1) ◽  
Author(s):  
S Sabu ◽  
T Ashita ◽  
S Stephy

The present study investigated the effect of chitosan combined with lemon peel extract coating on the quality and shelf life of refrigerated yellowfin tuna meat using physicochemical, microbial and sensory assessments. Fresh yellowfin tuna meat as chunks were divided into five lots and coated with lemon peel extract (LPE) and chitosan (CH) at different concentrations viz., control, C (0%), LPE 1%, CH 1%, LPE+CH 1% and LPE+CH 2% (w/v). Sensory, biochemical and microbial quality of the samples were observed for 12 days during 4°C refrigerated storage. Sensory evaluation revealed that shelf life of yellowfin tuna under the study was 6 days for control, 8 days each for LPE (1%) and CH (1%), 10 and 12 days for LPE+CH (1%) and LPE+CH (2%) respectively. Significantly higher pH, total volatile basic nitrogen (TVB-N), tri-methyl amino nitrogen (TMA-N), peroxide value (PV) and thiobarbituric acid reactive substances (TBARS) values were recorded in control samples than coated samples (p<0.05). Significant reduction in microbial counts were recorded in CH+LPE treated samples (p<0.05) compared to the LPE or CH coating alone, in the later stages of storage. Coated samples with combination of LPE+CH 1% and 2% indicated better storage qualities compared to other treatments. The present study revealed that LPE along with chitosan edible coating enhanced the shelf life of yellowfin tuna meat.


2016 ◽  
Vol 70 (5-6) ◽  
pp. 233-248
Author(s):  
Ljiljana Jankovic ◽  
Nedjeljko Karabasil ◽  
Brana Radenkovic-Damnjanovic ◽  
Marijana Vucinic ◽  
Radislava Teodorovic ◽  
...  

The goal of the work was to investigate the physical and chemical characteristics of the meat of broilers fed with mixtures in which fishmeal had been replaced with fresh earthworms and worm meal. The experiment was carried out on 100 day-old chickens of both sexes, Hybro provenance, divided into 4 groups, 25 broilers each. The experiment lasted for 42 days and had three phases: the first lasted for 3 weeks, the second 2 weeks and the third 1 week. The control group of broilers were fed with complete feed for chickens for fattening, of standard fiber and chemical composition, while I and II experimental groups were fed with mixture in which fishmeal had been replaced by worm meal in an amount of 50 and 100 %, and III experimental group obtained a mixture with no fishmeal, but fresh, chopped earthworms ad libitum instead, from the 1st day to the end of the experiment. At the end of the experiment, on the 42nd day, the broilers were transported to a slaughterhouse. After individual weighing they were slaughtered, and primary processing and cooling of the carcasses were performed. Then the carcasses were cut up to the main parts and the breast samples were taken for examining the physical and sensory properties of the meat. The results of the investigation have shown that there was no difference in physical properties (colour, pH) of the breast meat (p>0.05) among the experimental groups. The breast meat sample ranking has shown that the E-II group samples were rated as the most acceptable while the least acceptable were the meat samples of the control group as well as of the group fed with food in which fishmeal was completely replaced with fresh earthworms.


2021 ◽  
Vol 51 (4) ◽  
Author(s):  
Fatih Korkmaz ◽  
Ali Arslan ◽  
Alper Baran

ABSTRACT: The effect of sunflower oil (SO), sunflower oil-pomegranate sauce (PS1) and sunflower oil-plum sauce (PS2) on shelf life of marinated carp fillets was investigated in terms of sensory evaluation, chemical (peroxide value (POV), thiobarbituric acid (TBA), free fatty acids (FFA), total volatile basic nitrogen (TVB-N) and pH), and microbiological properties (Total viable count (TVC), Escherichia coli, Total coliform, Staphylococci/Micrococci, Salmonella spp.) during 30 days of storage. Proximate composition, which includes total crude protein%, fat%, moisture% and ash% of fresh carp fillets before marination process was analyzed and found 18.69±0.86, 4.08±0.19, 74.33±0.63 and 2.17±0.45, respectively. Sensory evaluation analysis showed that total appearance, odor-taste and texture scores decreased during storage. TVB-N significantly increased in all group after 1 month of storage (P<0.05). At the end of storage, the lowest TBA value (1.38 mg MA/kg carp fillet) was determined in the PS1 group. During storage, the highest POV value was observed in the control group (8.49 mEq O2/kg) compared to other groups. Initial TVC of 1.5 log CFU/g, 1.7 log CFU/g and 1.8 log CFU/g increased to 3.7 log CFU/g, 2.9 log CFU/g and 3.2 log CFU/g in SO, PS1 and PS2 groups, respectively. Results showed that the shelf life of marinated carp fillets treated with sunflower oil and in combination with pomegranate and plum sauce was more than 1 month.


Coatings ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 177 ◽  
Author(s):  
Victor Souza ◽  
João Pires ◽  
Érica Vieira ◽  
Isabel Coelhoso ◽  
Maria Duarte ◽  
...  

Active packaging incorporated with natural extracts is a promising technology to extend shelf life of perishable food. Therefore, this study aimed to produce a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporated with ginger essential oil (GEO). In vitro activity was assessed through migration assay and antimicrobial study against foodborne bacteria. Phenolic compounds were diffused within 48 h of contact, and retained some of their antioxidant activity. Films demonstrated antimicrobial activity against both Gram-positive and -negative bacteria tested. The effect on the shelf life of fresh poultry meat was determined on samples wrapped in the biopolymers and stored under refrigeration for 15 days, through physicochemical and microbiological analyses. Compared to unwrapped poultry meat, samples wrapped in the bionanocomposites showed a reduction in microorganisms count of 1.2–2.6 log CFU/g, maintained color and pH values and thiobarbituric acid reactive substances (TBARS) index increased at a lower rate, extending fresh poultry meat shelf life. The incorporation of GEO enhanced the biopolymer activity, by reducing lipid oxidation and microbiological growth of the poultry meat. In contrast, reinforcement with MMT imprisoned the active compounds in the polymeric chain, hindering its activity. In conclusion, the bionanocomposites tested represent promising substitutes to commercial and unsustainable plastic films.


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