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| Registros recuperados: 22 | |
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| Marchi,Denis Fabrício; Beteto,Flávia Maria; Almeida,Gleice Rocha dos Santos; Soares,Adriana Lourenço; Hernandez-Blazquez,Francisco Javier; Ida,Elza Iouko; Shimokomaki,Massami. |
| Abstract The aim of this work was to study the myofibril proteins and collagen fraction changes in broiler chickens PSE (pale, soft, exudative) meat during ageing and their relationship to meat quality. The results presented an increase of myofibril proteins and collagen solubility promoted by the enhanced proteases activities during storage. Ultramicroscopically, the PSE meat samples revealed intracellularly a sarcomere super contraction and lacunas within the A and I bands while Z-lines appeared very dense and fragmented in comparison to normal samples. This observation was noticed already at 4h storage while extracellularly collagen fibrils decreased visually within the endomysium only after 24h of conditioning. These results influenced the quality as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cooking loss; Tenderness; Collagen content; Myofibrillar Fragmentation Index. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100503 |
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| Langer,Roselane Oliveira de Souza; Simões,Gislaine Silveira; Soares,Adriana Lourenço; Oba,Alexandre; Rossa,Alessandro; Shimokomaki,Massami; Ida,Elza Iouko. |
| The objective of this work was to investigate the effect of road transportation conditions on the occurrence of broiler PSE-(Pale, Soft, Exudative) and DFD-like (Dark, Firm, Dry) meats in the Brazilian commercial slaughterhouse plant. Samples of Pectoralis major m from 47-day-old broilers of commercial lineage were analyzed. The results indicated that water-bathing birds just before journey over 3.0km promoted the occurrence of 46.0% of PSE and 4.0% of DFD-like meat, while birds under non-water bathing conditions presented 14.7 and 2.0%, respectively. For a distance of 68.0km, the occurrences of PSE-and DFD-like meat were 44.0 and 0.0% under water bathing conditions, and 52.0 and 0.0% without water bathing, respectively. Water bathing at the farm was a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Truck microclimate; Meat quality; Broiler chicken stress. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500021 |
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| Barbosa,Claudia Freitas; Carvalho,Rafael Humberto de; Rossa,Alessandro; Soares,Adriana Lourenço; Coró,Fábio Augusto Garcia; Shimokomaki,Massami; Ida,Elza Iouko. |
| The objective of this work was to study the effect of blue light diffuser on the broiler stress control by measuring the occurrence of PSE meat just before slaughtering. Birds were divided into the following two groups before slaughter at the point of being hung on shackles: broiler group under low intensity blue light ambience (475, 17-20 lx) and control group under white light (550-650nm, 321-332 lx). Birds' stressful conditions were measured by the occurrence of PSE meat. Breast fillets were classified as PSE meat based on pH (<5.8) and lightness (L*> 53.0). The fillet samples in the control group had the following characteristics: pHu=5.77, L* = 54.26 and b*= 6.27. The fillet samples from birds under blue light ambience had the following... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color; Preslaughter handlings; PSE meat. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500013 |
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| Pedrão,Mayka Reghiany; Lassance,Fernanda; Souza,Nilson Evelazio de; Matsushita,Makoto; Telles,Paulo; Shimokomaki,Massami. |
| The proximate chemical composition of hump, known in Brazil as cupim, Rhomboideus m. (RB), of Nelore (Bos indicus) aged 24 months revealed it to be a unique beef muscle. It presents a lipid fraction 14-fold as high as that of Longissimus dorsi m. (LD) taken from the same animal (p<0.05), the highest value reported so far. This was unequivocally observed by the histological evaluation. Proportionally more protein fraction and conversely less moisture were also observed in RB. Analysis of collagen and its crosslinking with hydroxylysylpyridinium (HP) showed there to be 22.9% more collagen and 14-fold as much HP in RB as in LD. Contrary to the expectations, the tenderness of fresh samples evaluated by Warner Bratzler shear force measurements led to values... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zebu breed; Collagen; Hydroxylysylpyridinium; Meat tenderness; Marbling fat. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300023 |
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| Kissel,Cassiana; Soares,Adriana Lourenço; Rossa,Alessandro; Shimokomaki,Massami. |
| This work was carried out in order to evaluate whether the functional properties of broiler meat are affected by the factors that lead to PSE (Pale, Soft, Exudative). PSE meat was characterized by pH and L* values, and mortadella formulations consisted of isolated soy protein, sodium tripolyphosphate, and cassava starch in addition to PSE and normal meats. The functionality of the meat was evaluated by examining the water holding capacity (WHC), texture profile, emulsion stability (ES) and color of the final products. The results show that in mortadella prepared with PSE meat, the protein denaturation affected the ES. Additives are necessary to enhance the functional properties of PSE meat. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mortadella; Water holding capacity; Texture profile; Meat color; Emulsion stability. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700027 |
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| Pedrão,Mayka Reghiany; Kato,Talita; Soares,Adriana Lourenço; Ida,Elza Iouko; Coró,Fábio Augusto Garcia; Grespan,Moises; Paião,Fernanda; Shimokomaki,Massami. |
| The aim of this work was to evaluate pH values fall rate in chicken breast meat under commercial refrigeration processing conditions and the development of PSE (pale, soft, exudative) meat. Broiler breast samples from the Cobb breed, both genders, at 47 days of age (n = 100) were taken from refrigerated carcasses (RS) immersed in water and ice in a tank chilled at 0°C (±2). pH and temperature (T) values were recorded at several periods throughout refrigeration in comparison to samples left at room T as control (CS). The ultimate pH (pHu) value of 5.86 for RS carcasses were only reached at 11°C after 8.35 h post mortem (PM) while, for CS samples, pHu value was 5.94 at 22°C after 4.08 h PM. Thus, under commercial refrigeration conditions, the glycolysis rate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post mortem management; Commercial processing refrigeration; Water chiller. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000200272 |
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| Monteiro,Eiane Mattos; Shimokomaki,Massami. |
| O objetivo deste trabalho foi comparar o conteúdo de lipídeos totais e componentes da fração insaponificável no Longissimus dorsi de cordeiros de cruzamento absorvente Ile de France x Corriedale (F1), em relação à raça Corriedale. Um total de vinte cordeiros machos inteiros foram divididos em dois grupos: cruza IF x C (n =10) e Corriedale (n =10). O manejo alimentar ovelha/cordeiro foi estabelecido em uma área de pastagem natural, melhorada. Os cordeiros foram abatidos com idade média de 150 dias e com pesos médios de 33,08 (±1,20) kg e de 26,42 (±1,37) kg, respectivamente. A gordura foi extraída, saponificada, os esteróis foram separados por cromatografia de camada delgada e o colesterol foi quantificado por cromatografia gasosa . Os resultados médios e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cordeiro; Raça; Cruzamento; Fração lipídica. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781999000300028 |
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| Souza,Marta A. A.; Visentainer,Jesui V.; Carvalho,Rafael H.; Garcia,Fabianne; Ida,Elza I.; Shimokomaki,Massami. |
| In this study, the changes in the lipid (Lox) and protein oxidation (Pox) were measured quantitatively by TBARS and carbonyl methods, respectively, throughout the salting and drying steps of charqui meat (CH) and jerked beef (JB) preparation and their storage up to 60 days. The experiment was carried out on CH samples treated with brine (20.0%) and JB with same brine solution added with sodium nitrite (0.02%). After 60 days of storage, the carbonyl substances in CH were 2.77nmol mg-1 while in the JB samples, there was 61.0% oxidation inhibition. The TBARS determination revealed a Lox inhibition by approximately 5-fold in the latter samples. These results indicated that in the metmyoglobin molecule, the nitrite kept the Fe in the Fe2+ state in JB samples... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protein oxidation; Charqui; Jerked beef. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000100014 |
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| Soares,Adriana Lourenço; Marchi,Denis Fabrício; Matsushita,Makoto; Guarnieri,Paulo Donizeti; Droval,Adriana Aparecida; Ida,Elza Iouko; Shimokomaki,Massami. |
| The aim of this work was to study the influence of lipid oxidation on broiler breast meat (Pectoralis major m) color abnormalities. There were 27.0 % more lipid oxidation in PSE in relation to normal meat and 41.0 % more in relation to DFD-like meat (p<0.05). The fatty acid profile was also significantly different since the arachidonic acid (AA) fraction increased 38.6 and 70.5 % in PSE meat comparing to normal and DFD-like meats, respectively. The ratio PUFA/SFA changed in these three types of meat: 0.736, 0.713 and 0.694 for PSE, normal and DFD-like meat respectively, reflecting the highest production of polyunsaturated fatty acids in the PSE meat samples. Results indicated that phospholipase A2 enzyme activities played a relevant role towards the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PSE meat; DFD meat; Arachidonic acid. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600023 |
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| Ziober,Iris Lamberti; Paião,Fernanda Gonzales; Marin,Silvana Regina Rockenbach; Marchi,Denis Fabricio; Binneck,Eliseu; Nepomuceno,Alexandre Lima; Coutinho,Luiz Lehmann; Shimokomaki,Massami. |
| Samples of Pectoralis major m. were collected, and an RT-PCR analysis of the a-Ryanodine receptor (a RYR) from chicken mRNA hotspot region spanning aminoacid residues 386 to 540, numbered according to the turkey sequence, revealed two classes of transcripts. The sequences of the first class were similar to turkey and human with 97% and 74% of identity, respectively, and included all transcripts with substitutions in the nucleotide sequence. The second class was characterized by the deletion of nucleotides, leading to a premature stop codon and coding for a truncated and nonfunctional protein. These results are to date the first report related to the sequencing of the chicken αRYR hotspot region 1, which will possibility serve as a guide for further studies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ΑRYR; PSE; Chicken. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700029 |
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| Oda,Sandra Helena Inoue; Nepomuceno,Alexandre Lima; Ledur,Mônica Corrêa; Oliveira,Maria Cristina Neves de; Marin,Silvana Regina Rockenbach; Ida,Elza Iouko; Shimokomaki,Massami. |
| Total RNA isolated from Pectoralis major muscle from PSE (L*24h>53.0, pH<5.8) and non-PSE (44<"L*24h>"53) meats of two phenotypically distinct chicken lines, broiler and layer, was used to investigate the α-ryr and β-ryr gene expression by real-time RT-PCR approach. Mean relative quantification (RQ) values were lower (p<0.05) for β-ryr in PSE chickens from both lines when compared to non-PSE chickens, while there was no difference (p>0.05) in α-ryr gene expression regardless of line studied. The β-ryr RQ results suggested that in PSE samples an alteration might occur in the regular ratio (1:1) of α-RyR/β-RyR normally found in avian muscles. These results provided the first evidence of PSE meat occurrence as a result of the differential... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malignant hyperthermia; Poultry; Gene expression; Real time PCR. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600024 |
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| Marchi,Denis Fabrício; Trindade,Marco Antônio; Oba,Alexandre; Soares,Adriana Lourenço; Ida,Elza Iouko; Ferraz,José Bento Sterman; Michelan Filho,Tércio; Ziober,Iris Lamberti; Shimokomaki,Massami. |
| This work aimed to evaluate female lineage broilers for halothane sensitivity and for their susceptibility to the subsequent development of PSE meat. The halothane test was carried out in an anesthetic chamber with 3.0% halothane. The unconscious birds were examined for leg muscle rigidity. If one or both legs became extended and rigid, the birds were classified as halothane sensitive (HAL+), while unresponsive birds were classified as halothane negative (HAL-). The results showed that of 298 birds aged 42 days old, 95.6% were HAL- and 4.4% were HAL+. A sample of pectoralis major muscle was collected from HAL- (n=105) and HAL+ (n=13) birds. The pH and breast fillet color were determined at 4ºC, 24 hours post-mortem. Interestingly, only 2.5% of HAL+ birds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental factors; Pectoralis major; Meat color abnormality. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700028 |
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| Soares,Adriana Lourenço; Olivo,Rubison; Shimokomaki,Massami; Ida,Elza Iouko. |
| The effect of alpha-tocopheryl acetate (AT) supplementation and exogenous application of this vitamin E associated with phytic acid (PA) on chicken breast meat WOF development was assessed. Control group was fed with 7.7IU of AT/kg of ration and supplemented group was fed with 200.0IU of AT/kg of ration. Dietary vitamin E as measured by TBARS inhibited WOF development by 78.9; 69.0; 60.7 and 46.5% (p<0.05) during storage at 6° C for 0, 1, 3 and 5 days, respectively. This inhibition was significantly increased (p<0.05) by 86.1; 91.6; 92.9 and 95.3% during storage at 6° C for 0, 1, 3 and 5 days, respectively, when 2mM PA was added in supplemented breast meat. In the exogenous experiment, through Response Surface Methodology design it was found out AT... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Warmed over flavour; Vitamin E; Phytic acid; Lipid oxidation inhibition; Response surface methodology; Breast poultry meat. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100008 |
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| Oba,Alexandre; Almeida,Mauricio de; Pinheiro,João Waine; Ida,Elza Iouko; Marchi,Denis Fabricio; Soares,Adriana Lourenço; Shimokomaki,Massami. |
| The aim of this work was to evaluate the influence of time of broiler chicken transportation and lairage prior to slaughtering on the occurrence of PSE (Pale, Soft, Exudative) meat and Death On Arrival (DOA) under non-commercial conditions in the Brazilian summer. Male birds (n=250) from a commercial line were subjected to different periods of journey (30, 90, and 180 min) and lairage (0, 90, and 180 min) before slaughtering. The occurrence of PSE was higher in broilers subjected to shorter journeys and lairage periods, whereas DOA was more pronounced upon longer periods of transport and lairage. The DOA occurrence percentage was much higher in comparison to commercially available figures, confirming that broiler chickens are very sensitive to both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water holding capacity; PSE meat; Color abnormalities; Broiler management. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700026 |
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| Registros recuperados: 22 | |
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