scholarly journals Relationship of breast fillet deboning time to shear force, pH, cooking loss and color in broilers stunned by high electrical current

1996 ◽  
Vol 5 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Petri A. Papinaho ◽  
Daniel L. Fletcher
Keyword(s):  
Shear Force ◽  
Geographical Area ◽  
Electrical Current ◽  
Cooking Loss ◽  
Processing Plant ◽  
Meat Tenderness ◽  
Post Mortem ◽  
Breast Meat ◽  
Potential Market ◽  
Broiler Breast

Experiments were conducted to determine the relationships between deboning time and broiler breast meat quality, as determined by objective meat tenderness, pH, color and cooking loss. All birds were processed in a European commercial processing plant using a high current, constant voltage stunning system and air chilling. According to a modified Mitscherlich response equation, pH values reached their ultimate value by 5.77 h post-mortem, with an asymptotic 95 % confidence interval of 5.72 h-5.81 h post-mortem. The shear force data, which were analyzed using a logistic model, suggested that broiler breast fillets should be aged intact on the carcass for 10.58 h, 5.94 h or 2.28 h to guarantee that over 95 % of the fillets reach Allo-Kramer shear forces of 8.0, 9.0 or 11.0 kg/g, respectively. Since acceptable meat tenderness values vary with country, geographical area, or consumer groups, acceptable ranges should be determined according to potential market demands. No relationships between deboning time and fresh meat color or cooking loss was found.

scholarly journals Effects of Post-Mortem Wing Restraint on the Development of Rigor and Tenderness of Broiler Breast Meat

1989 ◽  
Vol 68 (2) ◽  
pp. 238-243 ◽  
Author(s):  
C.M. PAPA ◽  
C.E. LYON ◽  
D.L. FLETCHER
Keyword(s):  
Post Mortem ◽  
Breast Meat ◽  
Broiler Breast

scholarly journals Pengaruh Dosis Injeksi Antemortem Papain Kasar terhadap Kualitas Fisik dan Organoleptik Daging Ayam Petelur Afkir pada Jenis Otot yang Berbeda

2017 ◽  
Vol 10 (2) ◽  
pp. 100 ◽  
Author(s):  
Agustin Widiastuti ◽  
Pudjomartatmo Pudjomartatmo ◽  
Adi Magna Patriadi Nuhriawangsa
Keyword(s):  
Tensile Strength ◽  
Shear Force ◽  
Laying Hen ◽  
Cooking Loss ◽  
Thigh Muscle ◽  
Body Parts ◽  
Breast Meat ◽  
Organoleptic Quality ◽  
Significant Difference ◽  
Post Production

<p>The research was aimed to observe the effect of antemortem injection dose of crude papain, muscle part and its interaction on physical and organoleptic qualities post production laying hen meat. The sample used were the breast and thighs from 20 hens on average age 82 weeks. Completely Randomized Design (CRD) used Factorial Pattern 4 x 2. Factor A consisted A1: without papain (control); A2: 1 mg papain/ kg BW; A3: 2 mg papain/ kg BW and A4: 3 mg papain/ kg BW, factor B consisted B1: breast muscle and B2: thigh muscle. The datas were analyzed by Analysis of Variance and continued by Duncan's Multiple Range Test. The results showed that injection of crude papain dose gave highly significant difference (P&lt;0.01) to all variables except tensile strength (P&lt;0.05). Body parts gave highly significant difference (P&lt;0.01) on shear force, tensile strength, WHC, cooking loss, organoleptic (shear force, texture and juice), and hedonic (P&lt;0.05). The interaction was found between injection of crude papain dose and body part on WHC, organoleptic and hedonic (P&lt;0.01), cooking loss (P&lt;0.05). Dose of 3 mg/kg WB in thigh and breast meat has the best quality and the organoleptic quality of the combination of papain injection of 3 mg/kg WB in breast meat and 2 mg/kg WB in thigh meat has the best quality.</p><p>Keywords: antemortem injection, crude papain, physical and organoleptic quality, post production<br />laying hen meat</p>

scholarly journals Pengaruh Dosis Injeksi Antemortem Papain Kasar terhadap Kualitas Fisik dan Organoleptik Daging Ayam Petelur Afkir pada Jenis Otot yang Berbeda

2017 ◽  
Vol 10 (2) ◽  
pp. 100
Author(s):  
Agustin Widiastuti ◽  
Pudjomartatmo Pudjomartatmo ◽  
Adi Magna Patriadi Nuhriawangsa
Keyword(s):  
Tensile Strength ◽  
Shear Force ◽  
Laying Hen ◽  
Cooking Loss ◽  
Thigh Muscle ◽  
Body Parts ◽  
Breast Meat ◽  
Organoleptic Quality ◽  
Significant Difference ◽  
Post Production

<p>The research was aimed to observe the effect of antemortem injection dose of crude papain, muscle part and its interaction on physical and organoleptic qualities post production laying hen meat. The sample used were the breast and thighs from 20 hens on average age 82 weeks. Completely Randomized Design (CRD) used Factorial Pattern 4 x 2. Factor A consisted A1: without papain (control); A2: 1 mg papain/ kg BW; A3: 2 mg papain/ kg BW and A4: 3 mg papain/ kg BW, factor B consisted B1: breast muscle and B2: thigh muscle. The datas were analyzed by Analysis of Variance and continued by Duncan's Multiple Range Test. The results showed that injection of crude papain dose gave highly significant difference (P&lt;0.01) to all variables except tensile strength (P&lt;0.05). Body parts gave highly significant difference (P&lt;0.01) on shear force, tensile strength, WHC, cooking loss, organoleptic (shear force, texture and juice), and hedonic (P&lt;0.05). The interaction was found between injection of crude papain dose and body part on WHC, organoleptic and hedonic (P&lt;0.01), cooking loss (P&lt;0.05). Dose of 3 mg/kg WB in thigh and breast meat has the best quality and the organoleptic quality of the combination of papain injection of 3 mg/kg WB in breast meat and 2 mg/kg WB in thigh meat has the best quality.</p><p>Keywords: antemortem injection, crude papain, physical and organoleptic quality, post production<br />laying hen meat</p>

Biochemical and sensorial evaluation of intact and boned broiler breast meat tenderness during ageing

2007 ◽  
Vol 104 (4) ◽  
pp. 1618-1621 ◽  
Author(s):  
P KRIESE ◽  
A SOARES ◽  
P GUARNIERI ◽  
S PRUDENCIO ◽  
E IDA ◽  
...  
Keyword(s):  
Meat Tenderness ◽  
Breast Meat ◽  
Sensorial Evaluation ◽  
Broiler Breast

scholarly journals Length of exposure to high post-rigor temperatures affects the tenderisation of the beef M. longissmus dorsi

2008 ◽  
Vol 48 (11) ◽  
pp. 1442 ◽  
Author(s):  
K. L. Thomson ◽  
G. E. Gardner ◽  
N. Simmons ◽  
J. M. Thompson
Keyword(s):  
Shear Force ◽  
Proteolytic Enzymes ◽  
Temperature Treatment ◽  
High Ionic Strength ◽  
Rapid Decline ◽  
Meat Tenderness ◽  
Post Mortem ◽  
Control Groups ◽  
Exposure Experiment ◽  
Initial Acceleration

This experiment examined the effect of length of exposure of bovine M. longissmus dorsi to high temperatures (37°C) on proteolytic activity during post-mortem aging and subsequent meat tenderness. To avoid confounding between pH decline and incubation treatments, the experiment was conducted on post-rigor meat (pH < 5.6), which had entered rigor at 15°C. This meat was first incubated at 15°C until rigor (pH < 5.6), whereupon samples were then reheated and maintained at 37°C for 0, 1 or 3 h. Following incubation, samples were aged at 1°C for 1–21 days. Control groups were incubated at either 15 or 37°C until pH < 5.6, followed by aging at 1°C. High rigor temperatures accelerated post-mortem proteolysis early in the post-mortem period, as indicated by a rapid decline in shear force (P < 0.01), but post-mortem aging ceased at about day 3 post-mortem and the high rigor temperature treatment was ultimately 30% tougher at day 21 post-mortem (P < 0.01). The process of reheating samples from 15 to 37°C had minimal effect on tenderness levels, but was associated with a slight increase in proteolysis, identified by myofibril length, and was associated with an increase in cook loss percentage (P < 0.05). Shear force in the length of exposure experiment was affected by an incubation time × post-mortem aging interaction (P < 0.01). This indicated an initial acceleration of post-mortem aging with increased length of exposure, but also a reduction in the ultimate tenderness of product after extended post-mortem aging. This was presumably due to the loss of proteolytic enzyme activity caused by the instability of proteolytic enzymes at high ionic strength conditions such as those present in post-mortem muscle.

scholarly journals EFFECT OF FREEZING-THAWING AND MARINATION TIME ON COOKED CHICKEN BREAST MEAT QUALITY

2017 ◽  
Vol 10 (2) ◽  
pp. 33-44
Author(s):  
Maja Ivić ◽  
Marija Jokanović ◽  
Natalija Džinić ◽  
Vladimir Tomović ◽  
Snežana Škaljac ◽  
...  
Keyword(s):  
Shear Force ◽  
Sensory Properties ◽  
Cooking Loss ◽  
Chicken Breast ◽  
Breast Meat ◽  
Color Properties ◽  
Lower Shear ◽  
Yield And Quality

Marination is oft en used to improve the yield and quality of chicken breast fi llets. Th e eff ects of freezing-thawing prior to marination and marination holding time on the instrumental and sensory properties of cooked marinated chicken fi llets were investigated. Fillets were marinated fresh or stored at -18oC and then thawed prior to marination (frozen-thawed). Fillets were soaked in marinade for 1.5 h and 20 h and then cooked at 175oC for 45 minutes for determination of cooking loss, Warner-Bratzler shear force, color properties, juiciness and sensory properties. Marinade uptake was greater in fi llets marinated for 20 h, both fresh and frozen-thawed, than in fi llets marinated for 1.5 h. Cooking loss was lowest for fresh unmarinated fi llets (19.30%) and signifi cantly lower (P < 0.05) comparing to frozenthawed fi llets marinated for 20 h (44.73%). Th e highest numerical value of color parameter lightness was found in fresh fi llet marinated for 1.5 h. There were no signifi cant diff erences between all examined fi llets regarding color properties redness and yellowness. Th e fi llets marinated for 20 h, both fresh and frozen-thawed were found to be signifi cantly more tender (P < 0.05) as indicated by lower shear force values (13.96 N and 12.88 N, respectively) and higher sensory scores for tenderness (7.00 and 6.50, respectively) as compared to other investigated fi llets. Furthermore, fresh fi llets marinated for 20 h had the highest mark for the overall sensory acceptability (95.00% of maximum quality).

scholarly journals Influence of ultrasound and proteolytic enzyme inhibitors on muscle degradation, tenderness, and cooking loss of hens during aging

2012 ◽  
Vol 30 (No. 3) ◽  
pp. 195-205 ◽  
Author(s):  
G.-Y. Xiong ◽  
L.-L. Zhang ◽  
W. Zhang ◽  
J. Wu
Keyword(s):  
Group Treatment ◽  
Proteolytic Enzyme ◽  
Shear Force ◽  
Enzyme Inhibitors ◽  
Proteolytic Enzymes ◽  
Treated Group ◽  
Cooking Loss ◽  
Potential Contribution ◽  
Meat Tenderness ◽  
Endogenous Proteases

The potential contribution of mechanical disruption by ultrasonics and endogenous proteolytic enzymes on the tenderisation of hen muscle were investigated. The importance of endogenous enzymes was evaluated using various specific inhibitors. Freshly obtained breast muscles of culled hens, from the 6 groups investigated were treated with different proteolytic enzyme inhibitors and/or ultrasonics, group was treated with different methods, and then stored at 4&deg;C for 0, 1, 3, and 7 days. Shear force decreased by 1.19 kg, and shear force and cooking loss were reduced by 0.69&nbsp;kg and 4.27%, respectively, in the incorporated group treatment. The calpastatin activity was affected by all treatments except in the Z-DEVD-fmk-treated group, caspase-3 activity decreased in Z-DEVD-fmk-treated group. Therefore, the results suggest that ultrasonics and endogenous proteases contributed to muscle degradation, thereby improving hen meat tenderness and decreasing the cooking loss. Thus muscle degradation, tenderness, and water-retaining properties of hens were improved by a combination of ultrasound and exogenous proteolytic enzyme inhibitors. &nbsp;

scholarly journals Effects of liver abscess severity and quality grade on meat tenderness and sensory attributes in commercially finished beef cattle fed without tylosin phosphate1

2017 ◽  
Vol 1 (3) ◽  
pp. 304-310
Author(s):  
E. J. McCoy ◽  
T. G. O'Quinn ◽  
E. F. Schwandt ◽  
C. D. Reinhardt ◽  
D. U. Thomson
Keyword(s):  
Liver Abscess ◽  
Shear Force ◽  
Sensory Attributes ◽  
Feedlot Cattle ◽  
Meat Tenderness ◽  
Post Mortem ◽  
Randomized Design ◽  
Quality Grade ◽  
Strip Loin ◽  
Treatment Structure

Abstract Strip loin steaks (n = 119) were used to evaluate the association between liver abscess severity and USDA quality grade and meat tenderness and sensory attributes of steaks from finished feedlot cattle. Steaks were used in a 3 × 2 factorial treatment structure using a completely randomized design and were collected at a commercial abattoir located in northwest Texas. All cattle were sourced from a single feedlot and fed a common diet that did not include tylosin phosphate. Treatments were USDA quality grades of Select (SEL) and Low Choice (LC) and liver abscess scores of normal (NORM; healthy liver, no abscesses), mild (M; 1 abscess less than 2 cm in diameter to 4 abscesses less than 4 cm in diameter), and severe (SV; 1 abscess greater than 4 cm in diameter or greater than 4 small abscesses). All steak samples were collected on the same day, approximately 36-h post-mortem and were cut from the left side of the carcass at the 13th rib by a trained abattoir employee. Steaks were vacuum-packaged, and aged at 3 ± 1°C for 14-d post-mortem. Warner-Bratzler Shear Force (WBSF) and Slice Shear Force (SSF) analyses were conducted and cook-loss percentage was measured. A trained sensory panel analyzed samples for juiciness, tenderness, and flavor attributes. There were no differences among liver abscess scores for WBSF or SSF (P &gt; 0.52). Warner-Bratzler Shear Force was lower for LC-SV than SEL-SV (P = 0.04). Sensory attributes of initial and sustained juiciness, and overall tenderness were all greater for LC than for SEL steaks (P &lt; 0.04) and connective tissue amount was less for LC steaks when compared to SEL (P = 0.03). Liver abscess score had no effect on any sensory attributes (P &gt; 0.70); however, there was an interaction between quality grade and liver score for myofibillar tenderness (P = 0.03). Within LC steaks, liver abscess score had no effect on myofibrillar tenderness (P &gt; 0.05), however, in SEL steaks, M steaks were more tender than SV steaks (P &lt; 0.03). These results indicate that within quality grades, meat tenderness or sensory attributes were not influenced by liver abscess score but that mild liver abscesses may affect the myofibrillar tenderness of SEL steaks.

scholarly journals Effect of muscle opposition during rigor on development of broiler breast meat tenderness

1997 ◽  
Vol 76 (5) ◽  
pp. 785-787 ◽  
Author(s):  
JA Cason ◽  
CE Lyon ◽  
CM Papa
Keyword(s):  
Meat Tenderness ◽  
Breast Meat ◽  
Broiler Breast
Sign in / Sign up

Export Citation Format

Share Document