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Dissertations / Theses on the topic 'Thiobarbituric acids'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Vasavada, Mihir N. "Comparative Effects of Sodium Levulinate and Sodium Lactate on Microbial Growth, Color, and Thiobarbituric Acid (TBA) Values of Fresh Pork and Turkey Sausages During Storage." DigitalCommons@USU, 2004. https://digitalcommons.usu.edu/etd/5505.

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This study compared the effects of 1.4 or 2.7% sodium levulinate or sodium lactate on aerobic plate count (APC), color, pH, and TBA value of fresh pork and turkey sausage. Both sodium lactate and Jevulinate inhibited growth of aerobic microorganisms during storage, compared to controls. Bacteriostatic effects of sodium lactate were dose dependent, wherein 2.7% lactate was significantly more antimicrobial than 1.4% lactate. This was not the case for sodium levulinate, where 1.4% sodium levulinate was as inhibitory to microbial growth as 2.7% sodium levulinate. Additionally, 1.4% sodium levulina

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2

Chin, Ji Jenny. "Fats and Iron in the Rat Colon: Effects on Lipid Peroxidation." DigitalCommons@USU, 1996. https://digitalcommons.usu.edu/etd/5432.

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Preliminary studies were undertaken to investigate whether or not added iron (0, 35, 880 ppm of iron as ferrous fumarate) and fat type (corn oil, beef tallow, or menhaden oil ) influenced the oxidation of the rat diet during storage . Iron level affected thiobarbituric acid (TBA) values only in the menhaden oil diets. Storage for 4 d did not affect TBA values of the diets . Neither food intake nor body weight of the rats was affected by the different diets, suggesting all diets were equally acceptable to rats. The effects of iron supplementation and fat type on in vivo lipid peroxidation in ra

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3

John, Liza. "Comparison of Color and Thiobarbituric Acid (TBA) Values of Cooked Hamburger Patties and Top Sirloin Steaks after Storage of Fresh Beef Chubs and Raw Steaks in Modified Atmospheres of 80% Oxygen or 0.4% Carbon Monoxide." DigitalCommons@USU, 2004. https://digitalcommons.usu.edu/etd/5520.

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This study compared the effect of packaging method (0.4% carbon monoxide, 80% oxygen or vacuum), storage time (7, 14 and 21 days) and internal cooking temperature 49, 57, 66, 71 and 79°C) on color and thiobarbituric acid (TBA) values of top sirloin steaks and ground beef patties. Ground beef was obtained from 3 different sources (chuck, loin and trim). All samples were stored at 2°C for 7, 14 and 21 days. All raw ground beef samples stored in 0.4% carbon monoxide remained bright red throughout the 21-day storage period. The phenomenon of premature browning (appearance of cooked color at lower

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4

Matak, Kristen. "Effects of UV Irradiation on the Reduction of Bacterial Pathogens and Chemical Indicators of Milk." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/29852.

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Consumer demand for fresher and minimally processed foods has brought about a movement to find effective, non-thermal processing technologies for the treatment of milk. The influence of temperature on bacterial reduction in UV irradiated milk was tested. Commercially processed skim, reduced fat (2%), and whole milk samples were inoculated with a naladixic acid resistant E. coli O157:H7 surrogate (ATCC 25922), maintained at or brought to 4oC and 20oC, respectively, and then exposed to a UV light dose between 5.3-6.3 mJ/cm2 for approximately 1.5 sec using the CiderSure 3500 apparatus (FPE Inc.

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5

Fonteque, Joandes Henrique [UNESP]. "Estresse oxidativo e lipoperoxidação devido à anemia induzida por perda aguda de sangue em ovinos." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/101291.

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Made available in DSpace on 2014-06-11T19:31:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2005Bitstream added on 2014-06-13T19:20:19Z : No. of bitstreams: 1 fonteque_jh_dr_botfmvz.pdf: 314172 bytes, checksum: a0386e439bd656f3236dc3ec523e7bea (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>A produção de espécies reativas de oxigênio (ERO) é um evento presente em todas as células do organismo e pode estar aumentada em condições como hipóxia induzida pela anemia causando lesões em moléculas como DNA, lipídeos e proteínas. Com o objetivo de avaliar o estr

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6

Fonteque, Joandes Henrique. "Estresse oxidativo e lipoperoxidação devido à anemia induzida por perda aguda de sangue em ovinos /." Botucatu : [s.n.], 2005. http://hdl.handle.net/11449/101291.

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Orientador: Aguemi Kohayagawa.<br>Resumo: A produção de espécies reativas de oxigênio (ERO) é um evento presente em todas as células do organismo e pode estar aumentada em condições como hipóxia induzida pela anemia causando lesões em moléculas como DNA, lipídeos e proteínas. Com o objetivo de avaliar o estresse oxidativo na anemia induzida por perda aguda de sangue, foram utilizados 10 ovinos, mestiços da raça Texel, machos e fêmeas, com idade entre seis e oito meses, clinicamente sadios, mantidos em regime de confinamento. Os animais foram submetidos a duas flebotomias para a retirada de 30%

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7

Barisson, Villares Fragoso Maria Candida, de Albuquerque Albuquerque Edoarda Vasco, Almeida Cardoso Ana Luiza de, et al. "Triple A Syndrome: Preliminary Response to the Antioxidant N-Acetylcysteine Treatment in a Child." Karger, 2017. https://tud.qucosa.de/id/qucosa%3A70616.

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Introduction: Triple A syndrome (AAAS) is a rare autosomal recessive disorder characterized by alacrima, achalasia, ACTH-resistant adrenal insufficiency, autonomic dysfunction, and progressive neurodegeneration. Increased oxidative stress, demonstrated in patients’ fibroblasts in vitro, may be a central disease mechanism. N-acetylcysteine protects renal function in patients with kidney injuries associated with increased oxidative stress and improves viability of AAAS-knockdown adrenal cells in vitro. Patient and Results: A boy diagnosed with AAAS presented with short stature and increased oxid

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8

Furlan, Carla Barbosa Muraro. "O impacto de reúso de dialisadores nos marcadores de estresse oxidativo e inflamatórios em pacientes em hemodiálise." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5148/tde-09062014-101133/.

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A morbimortalidade dos pacientes em hemodiálise permanece alta apesar da evolução tecnológica do procedimento, sendo que os eventos cardiovasculares são a sua principal causa. Estes desencadeados pela alta prevalência de fatores de risco tradicionais, fatores relacionados ao procedimento dialítico e estresse oxidativo. Considerando o procedimento dialítico e o estresse oxidativo, foi avaliado o quanto a habitual prática de reuso de dialisadores/RD (difundida nas Américas e amparada principalmente por questões econômicas) e uso único de dialisadores, influenciam nos marcadores inflamatórios e d

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9

Bochi, Vivian Caetano. "OTIMIZAÇÃO DE UMA FORMULAÇÃO DE FISHBURGER DE JUNDIÁ (RHAMDIA QUELEN) VISANDO O APROVEITAMENTO DE RESÍDUOS DA FILETAGEM DO PROCESSAMENTO DE FRUTAS." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/5749.

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This work was aimed at optimizing a formulation of silver catfish fishburgers (Rhamdia quelen) using filleting wastes and extract from fruit seeds. The utilization of filleting wastes from silver catfish in the formulation of fishburgers was evaluated by replacing grounded fish fillets with increasing levels (0-control, 20, 50, and 80%) of pulp obtained from filleting wastes (PFW). Fat content of burgers increased with increasing levels of PFW (p<0.05). Burgers with 50-80% PFW had lower n-6/n-3 ratio than control (p<0.05). Fat and moisture retention after cooking were not affected by PFW, whil

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10

Maciel, Roberto Marinho. "Efeitos da quercetina na atividade da cetilcolinesterase, na peroxidação lipídica e nos testes comportamentais em ratos diabéticos induzidos por estreptozotocina." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/4082.

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Diabetes mellitus (DM) refers to a group of common metabolic disorders that share the phenotype of hyperglycemia, is a chronic condition that arises when the pancreas does not produce enough insulin or when the body can not effectively use the insulin produced.The condition of chronic hyperglycemia promotes an imbalance between the production of free radicals and endogenous antioxidant defense, causing oxidative stress and finally lipid peroxidation, structures and cell membranes rich in lipids. Quercetin (QUE) is a flavonoid that has antioxidant and anti-inflammatory properties and is therefo

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11

Augusti, Paula Rossini. "Efeito dos carotenóides licopeno e astaxantina sobre danos renais induzidos por cloreto de mercúrio." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/11167.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Mercury is a heavy metal toxic for any living tissue, being kidneys the first target for the inorganic form. Oxidative stress has been pointed as an important molecular mechanism for kidney injury in inorganic mercury poisoning and the interaction of the metal with endogenous thiol-containing molecules, such as δ-aminolevulinate desidratase (δ-ALA-D), seems to contribute to this process. Lycopene and astaxanthin are plentiful carotenoids in tomatoes and algaes and seafoods, respectively. They have been widely studied because of th

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12

Shimizu, Maria Heloisa Massola. "A N-acetilcisteína atenua a progressão da doença renal crônica." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/5/5160/tde-31102006-162853/.

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Os biomarcadores do estresse oxidativo encontram-se elevados na urina e no plasma dos pacientes renais crônicos. A aldosterona (ALD) contribui para a lesão renal no modelo de rins remanescentes. Objetivos: 1- Determinar o efeito do antioxidante N-acetilcisteína (NAC) sobre a função renal e a aldosterona plasmática de animais com IRC. 2- Avaliar o efeito da NAC sobre a evolução da IRC, mesmo quando administrada tardiamente. 3- Avaliar os efeitos da NAC associada a Espironolactona (Spi). Material e Métodos: Ratos adultos Wistar machos foram submetidos a nefrectomia de 5/6 (Nx). No estudo 1: Anim

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13

Pretorius, Corlea. "Antioxidant properties of Lippia javanica (Burm.f.) Spreng. / C. Pretorius." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4726.

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The evolution of aerobic metabolic processes unavoidably led to the production of reactive oxygen species (ROS). ROS have the ability to cause harmful oxidative damage to biomolecules. Increased ROS generation and subsequent oxidative stress have been associated with aging and neurodegenerative disorders such as Parkinson’s and Alzheimer’s diseases as a result of the extreme sensitivity of the central nervous system to damage from ROS. Antioxidant defence systems have co–evolved with aerobic metabolic processes to counteract oxidative damage inflicted by ROS. The impact of neurodegenerative di

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14

Hsu, Yen-Jung, and 許嫣容. "Study for Polymerization of N,N- Bismaleimide- 4, 4- Diphenylmethane /Thiobarbituric acid." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/88352715510307899620.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>105<br>The reactivity and characteristic of 4,6-Dihydroxy-2-mercaptopy- rimidine (TBTA) containing >CH2 group and two >NH group toward N,N’-bismaleimide-4,4 diphenylmethane ( BMI ) containing two reactive terminal－C=C－groups was investigated and compare with barbituric acid ( BTA) which structure is very similar to TBTA. Both isothermal and non-isothermal polymerization kinetics of TBTA/BMI in N-methyl-2-pyrrolidone (NMP) solvent were characterize-ed by Differential Scanning Calorimeter ( DSC ). The model fitting method in combination with the model free method was

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15

NGUYEN, SUONG THI THU, and SUONG THI THU NGUYEN. "N, N’-BISMALEIMIDE-4, 4’-DIPHENYLMETHANE/1, 3-DIBUTYL-2-THIOBARBITURIC ACID FOR DRUG DELIVERY." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/rzd6k6.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>107<br>This work focus on the synthesis of polymer from the polymerization reaction of N,N-bismaleimide-4,4-diphenylmethane (BMI) and N,N-dibutyl-2-thiobarbituric acid (DBTB). In the process, the synthesized polymer was modified by Jeffamine@M1000 and L-Cysteine to get the pH-responsiveness behavior. Based on the biological properties of DBTB reported, the obtained carriers are expected to have the selectivity toxicity towards some cancer cell lines. A combination of analytical techniques including dynamic light scattering (DLS), Zeta potential, differential scanning

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16

Noronha, Verônica Teixeira. "Molecular imprinting and grafting of n-acetylneuraminic acid in synthetic polymers for virus targeting." Master's thesis, 2021. http://hdl.handle.net/10198/24737.

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In this work, the synthesis of Molecularly Imprinted Polymers (MIPs) was executed using different solvents, N,N-dimethylformamide (DMF), Acetonitrile (ACN), and a mixture of both reagents, two different monomers, 4-vinylpiridine (4VP) and 4-Vinylphenilboronic acid (4VBA), and different concentrations of solutions for the template, N-acetylneuraminic acid, in order to evaluate which conditions would lead to a final synthetic material with higher retentions of N-acetylneuraminic acid. The characterization of the synthesised MIPs was performed beginning with batch adsorption, allowing the materi

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