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| Registros recuperados: 57 | |
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| Fogaça, Fabiola Helena dos Santos; EMBRAPA; Sant'Ana, Léa Silvia; UNESP; Carneiro, Dalton José; UNESP. |
| This work compared the effects of dietary α-tocopheryl acetate on storage life of tilapia fillets. Three experimental diets containing increasing α-tocopherol levels (zero, 100, and 200 mg kg-1) were used. The fish, with a mean initial weight of 184.23 ± 1.68 g, were fed diets for 63 days. After that period, they were slaughtered, filleted, and the fillets were grounded to accelerate lipid oxidation. Fish growth, survival, fillet yield, chemical composition and lipid oxidation of tilapia ground fillets were evaluated 0, 30 and 60 days after frozen storage. The results demonstrated that there was no significant difference between treatments for performance, and also, tocopherol did not influence the chemical composition values of fillets.... |
| Tipo: Pesquisa de campo |
Palavras-chave: Lipid oxidation; Oreochromis niloticus; Storage life; Tocopherol supplementation Produção Animal. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6929 |
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| Bueno,F.R.; Silva,C.A.; Oba,A.; Almeida,M.; Medeiros,L.G.; Pitarello,A.S.; Shinyashike,A.T.. |
| ABSTRACT A total of 640 one-day-old Cobb broiler chicks, half male and half female, were reared up to 49 days of age. A completely randomized 2 × 4 factorial design was used. Experimental treatments consisted of four levels of organic zinc supplementation and one control (inorganic zinc supplementation) and two levels of sex (female and male), with four replicates of 16 birds per experimental plot. Animal performance, carcass and cut yields, and meat quality were evaluated. Feed intake increased with zinc supplementation. Broilers that received the lowest level of organic zinc showed better feed conversion than those fed an equivalent level of inorganic zinc. Increased levels of organic zinc reduced the abdominal fat content in females but impaired the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Color; Lipid oxidation; Oligoelement; Organic minerals; Meat pH. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100224 |
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| Oliveira,L.M.F.S.; Leal,R.S.; Mesquita,T.C.; Pimenta,M.E.S.G.; Zangeronimo,M.G.; Sousa,R.V.; Alvarenga,R.R.. |
| The objective was to evaluate the use of ractopamine (RAC) in the diet for pacu (Piaractus mesopotaminus) in the finishing phase on some quality parameters of the fillets. Thirty-five animals weighing 0.868±0.168kg were distributed in a completely randomised design with five treatments (0.0 - control; 11.25, 22.50, 33.75 and 45 ppm of RAC) and seven replicates with two fillets obtained from the same animal. The diets were isocaloric and isoprotein and experimental time was 90 days. RAC did not affect (P>0.05) the initial pH or ph after 24 hours of the fillets. Compared to the control, RAC increased (P<0.05) the moisture content of the fillets in natura and lipid oxidation of samples stored for 12 days in the refrigerator or freezer for 60 days.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Lipid oxidation; Animal production; Fillet quality. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000100026 |
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| Soto-Urquieta,María G; López-Briones,Sergio; Pérez-Vázquez,Victoriano; Saavedra-Molina,Alfredo; González-Hernández,Gloria A; Ramírez-Emiliano,Joel. |
| BACKGROUND: Nitrosative and oxidative stress play a key role in obesity and diabetes-related mitochondrial dysfunction. The objective was to investigate the effect of curcumin treatment on state 3 and 4 oxygen consumption, nitric oxide (NO) synthesis, ATPase activity and lipid oxidation in mitochondria isolated from liver and kidneys of diabetic db/db mice. RESULTS: Hyperglycaemia increased oxygen consumption and decreased NO synthesis in liver mitochondria isolated from diabetic mice relative to the control mice. In kidney mitochondria, hyperglycaemia increased state 3 oxygen consumption and thiobarbituric acid-reactive substances (TBARS) levels in diabetic mice relative to control mice. Interestingly, treating db/db mice with curcumin improved or... |
| Tipo: Journal article |
Palavras-chave: Diabetes; Mitochondria; Curcumin; ATPase activity; Nitric oxide synthesis; Lipid oxidation. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100068 |
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| Facco,Elizete Maria Pesamosca; Lage,Moacir Evandro; Godoy,Helena Teixeira. |
| The present work evaluated and compared the lipid oxidation of charque, taken from, the semi-tendinosus muscle of animals from the Nelore breed (Bos taurus indicus), supplemented with α-tocopherol. Charque was produced submitting the samples to salt moisture, salt drying and exposition to the sun for dehydration until water activity values (Aw) reached 0.75. The statistical analysis of the results showed that there were no significant differences in the values of cholesterol, total lipids, fatty acids and substances relative to tiobarbituric acid (TBARS) and tocopherol as the samples were controlled and supplemented, respectively. Despite this, the values of TBARS and cholesterol were lower in the samples with the supplement of α-tocopherol. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Charque; Lipid oxidation; Tocopherol; Vitamin; Supplementation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300025 |
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| Pazzoti,Geisa; Souza,Camila; Veronezi,Carolina; Luzia,Débora; Jorge,Neuza. |
| ABSTRACT The oxidative stability of linseed (L), cotton (A), and coconut (C) oils, as well as of linseed:cotton (LA), linseed:coconut (LC), and linseed:cotton:coconut (LAC) compound oils was evaluated under accelerated storage at 60°C/20 days. Coconut oil showed to be rather stable, mainly due to low levels of peroxides, conjugated dienes, ρ-anisidine, and long induction period. In addition, along with cotton oil, it improved the stability of linseed oil in the formulation of LAC compound oil. As to fatty acid profile, the compound oils showed to be composed mainly by unsaturated fatty acids. Cotton and coconut oils presented higher retention of total phytosterols, 78.87 and 76.16%, respectively, after 20 days of storage, when compared to linseed oil. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linseed; Cotton; Coconut; Lipid oxidation; Vegetable oils. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100502 |
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| Stefanello,Flávia Santi; Cavalheiro,Carlos Pasqualin; Ludtke,Fernanda Luísa; Silva,Mariana dos Santos da; Fries,Leadir Lucy Martins; Kubota,Ernesto Hashime. |
| Consumers are becoming more aware of the toxicological implications of artificial additives in foods. Natural antioxidants, in addition to reducing the deleterious effects of lipid oxidation, are currently extremely highly valued. This study aimed to invetigate the effect of addition of sun mushroom (Agaricus blazei Murrill) powder on the oxidative and microbiological stability of pork sausage during the shelf life. This powder was used at concentrations of 0.0%, 1.0%, 2.0% and 4.0% in the sausages. Analyses of moisture, protein, ash, fat and microbiological analyses were performed on day 0. The sausages were analyzed on day 0 and every seven days in terms of pH, color, TBARS values and microbiological analyses. The results of the proximal composition... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural antioxidant; Microbial count; Lipid oxidation; Meat product. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400381 |
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| BİLECEN,Damla; KILIÇ,Birol. |
| Abstract Effects of encapsulated (e) sodium tripolyphosphate (STP), sodium pyrophosphate (SPP) and various combinations of encapsulated and un-encapsulated (u) forms of these polyphosphates on lipid oxidation in the cooked ground beef during storage (0, 1, 7 d at 4 0C) were determined. pH, color, cooking loss (CL), thiobarbituric acid reactive substances (TBARS), lipid hydroperoxide (LPO) and soluble orthophosphate (OP) analysis were conducted. Study results indicated that STP increased pH, whereas SPP decreased pH compared to control (p<0.05). SPP was determined as the most effective polyphosphate type to inhibit lipid oxidation (p<0.05). In addition, the use of eSPP significantly reduced OP content compared to uSPP (p<0.05). The lowest TBARS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meat; Polyphosphate; Encapsulation; Lipid oxidation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000500341 |
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| Valencia-Perez,Adriana Zulema; Soto-Valdez,Herlinda; Ezquerra-Brauer,Josafat Marina; Márquez-Ríos,Enrique; Torres-Arreola,Wilfrido. |
| Fresh blue shrimp (Litopenaeus stylirostris) muscle was stored with antioxidants under different conditions: ANTIOX 2%, packed in bilayer film of polyamide-low density polyethylene film (PA-LDPE) with 2% α-tocopherol; ANTIOX 4%, packed in PA-LDPE film with 4% α-tocopherol; and ANTIOX-GLAZED, samples stored glazed with 2% α-tocopherol. Shrimps packed in PA-LDPE without α-tocopherol were used as CONTROL. All samples were stored at –20 °C for 120 days. As compared to the CONTROL, the shrimp stored with the antioxidant showed lower lipid oxidation (0.10-0.14 vs 1.58 mgMA/kg of muscle), lost less firmness and astaxanthin content. ANTIOX 2% and ANTIOX-GLAZED showed the lowest concentrations of formaldehyde (0.081-0.083 μM/g). There were no significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litopenaeus stylirostris; Α-tocopherol; Lipid oxidation; Freezing; Quality. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000200368 |
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| Pereira,Ana Lúcia Fernandes; Vidal,Tatiana Fontoura; Abreu,Virgínia Kelly Gonçalves; Zapata,Jorge Fernando Fuentes; Freitas,Ednardo Rodrigues. |
| The objective of this work was to evaluate the influence of diets containing different lipid sources on eggs quality during refrigerated storage, on yolk fatty acid composition, and on cholesterol in the yolk. Four diets were used containing Soy Oil (SO), Sunflower Seed (SS), and Meat and Bone Meal + Soy Oil (MBM + SO) or Meat and Bone Meal + Tallow (MBM + TA). The experiment followed a factorial design 4 × 3 with four dietary treatments and three storage times. The eggs were stored at 4 °C for 0, 30, and 60 days. The collected eggs were analyzed for egg weight loss, Haugh units, yolk moisture, yolk lipid oxidation, and cooked yolk firmness. Refrigerated storage reduced Haugh units, and increased yolk moisture. Sixty days of storage time reduced the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eggs; Soy oil; Meat and bone meal; Tallow; Sunflower seed; Lipid oxidation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400026 |
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| Soto-Valdez,Herlinda; Ezquerra-Brauer,Josafat Marina; Márquez-Ríos,Enrique; Torres-Arreola,Wilfrido. |
| Rancidity development during frozen storage (–20 °C) of sierra fish (Scomberomorus sierra) was studied. Fillets were packed in low-density polyethylene films with and without butylated hydroxytoluene added (BHT-LDPE and LDPE respectively). Fillets stored with no package were used as control. Special attention was given to the effect of previous ice storage (0, 3, 6, 9 and 15 days) on the quality of the frozen fish. Physical (pH and texture) and chemical (peroxide value, PV and thiobarbituric acid index, TBA-i) analyses were carried out. Lipid oxidation increased with ice storage time in fish muscle without film packing, being greater than the film packed muscle (with and without antioxidant). An effect of previous ice storage time was observed on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scomberomorus sierra; Ice storage; Lipid oxidation; Antioxidant. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100202 |
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| CARVALHO,Leila Moreira de; OLIVEIRA,Maria Érica da Silva; FREITAS,Arlan Silva; SOUSA NETO,Arnoud Clementino; IDA,Elza Iouko; SHIMOKOMAKI,Massami; MADRUGA,Marta Suely. |
| Abstract This work aims to investigate the incidence of two color abnormalities in broiler meat: PFN (Pale, Firm, Non-exudative) and PSE (Pale, Soft, Exudative), as well as the physicochemical alterations promoted by those anomalies. The samples of broiler breast meat (n = 700) were classified as Normal (44<L*<53, pH>5.8), PSE (L*≥53, pH<5.8) and PFN (L*≥53; pH>5.8). The occurrence of Normal, PSE and PFN samples was 69%, 11% and 20%, respectively. PFN samples presented a 4.2% higher water-holding capacity compared to PSE meat. PSE meats displayed a higher MFI (89.4) when compared to PFN and Normal meats. It was also noticed that the levels of lipid oxidation were greater in PSE breasts compared to Normal breasts. The total carbonyl in PFN,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abnormal coloration; Functional properties; Lipid oxidation; Protein oxidation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000400704 |
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| ZUANAZZI,Jovana Silva Garbelini; GOES,Elenice Souza dos Reis; ALMEIDA,Fernanda Losi Alves de; GOES,Marcio Douglas; LARA,Jorge Antônio Ferreira de; RIBEIRO,Ricardo Pereira. |
| Abstract The aim of this investigation was to evaluate the impact of multiple freezing and thawing cycles on the physicochemical properties of Nile tilapia fillets. For this purpose, 72 fresh Nile tilapia fillets were packed and stored in a freezer at -18 °C. The frozen samples were submitted to five freeze-thaw cycles; in each cycle, the freezer was switched off during 14 hours. The consecutive freeze-thaw cycles resulted in a fillet’s total weight loss of 9.48%, with a quadratic regression (P < 0.0001) for thaw loss, with a greater loss percentage in cycle 3 (2.68%). pH values differed between the cycles (P < 0.0001), being observed an increment in this parameter only from cycle 4. The lipid oxidation remained constant in cycles 1, 2, 4 and 5,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Colour; Oreochromis niloticus; Lipid oxidation; PH. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005031110 |
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| MARQUES,Caroline; LISE,Carla Cristina; LIMA,Vanderlei Aparecido de; DALTOÉ,Marina Leite Mitterer. |
| Abstract The consumption of fish in Brazil is below the world average. In order to change this scenario, considering the high nutritional value of this meat, one of the strategies is to turn fish into a convenient product, such as burgers. Since fish burgers are not yet established in the market, it requires investigation of the shelf life. To that end, survival analysis and cut-off point (COP) methodologies access the perception of consumers and trained panels. Thus, the objective of this study was to estimate the shelf life of grass carp burgers, by means of the survival analysis and cut-off point. A trained sensory panel and consumers evaluated the burgers during a refrigerated storage of 30 days. Simultaneously, the pH and the reactive substances of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Storage; Grass carp; Rancid flavor; Sensory; Lipid oxidation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100171 |
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| Santana,Audirene Amorim; Oliveira,Rafael Augustus de; Pinedo,Aroldo Arévalo; Kurozawa,Louise Emy; Park,Kil Jin. |
| The objective of this study was to obtain babassu coconut milk powder microencapsulated by spray drying process using gum Arabic as wall material. Coconut milk was extracted by babassu peeling, grinding (with two parts of water), and vacuum filtration. The milk was pasteurized at 85 ºC for 15 minutes and homogenized to break up the fat globules, rendering the milk a uniform consistency. A central composite rotatable design with a range of independent variables was used: inlet air temperature in the dryer (170-220 ºC) and gum Arabic concentration (10-20%, w/w) on the responses: moisture content (0.52-2.39%), hygroscopicity (6.98-9.86 g adsorbed water/100g solids), water activity (0.14-0.58), lipid oxidation (0.012-0.064 meq peroxide/kg oil), and process... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orbignya phalerata Mart.; Spray drying; Lipid oxidation; Response surface; Scanning electron microscopy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000400020 |
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| Registros recuperados: 57 | |
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