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Alpha-tocopherol and gamma-tocopherol concentration in vegetable oils Ciênc. Tecnol. Aliment.
Grilo,Evellyn Câmara; Costa,Priscila Nunes; Gurgel,Cristiane Santos Sânzio; Beserra,Andressa Fernanda de Lima; Almeida,Fernanda Niéce de Souza; Dimenstein,Roberto.
Vegetable oils are the richest dietary sources of vitamin E. Vitamin E determination levels in foods are of great importance to adjust the ingestion of nutrients by the population. The purpose of this paper is to determine the concentration of alpha-tocopherol and gamma-tocopherol in vegetable oils and compare the alpha-tocopherol value to the nutritional requirement of vitamin E. The analysis was performed using High Performance Liquid Chromatography. The values expressed as mg/kg for alpha and gamma-tocopherol were, respectively, 120.3±4.2 and 122.0±7.9 in canola oil; 432.3±86.6 and 92.3±9.5 in sunflower oil; 173.0±82.3 and 259.7±43.8 in corn oil; 71.3±6.4 and 273.3±11.1 in soybean oil. A significant difference was encountered between the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitamin E; Vegetable oils; Nutritional recommendations.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000200024
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Antifungal and antioxidant activity of fatty acid methyl esters from vegetable oils Anais da ABC (AABC)
PINTO,MARIA E.A.; ARAÚJO,STHÉFANE G.; MORAIS,MARCELA I.; SÁ,NÍVEA P.; LIMA,CAROLINE M.; ROSA,CARLOS A.; SIQUEIRA,EZEQUIAS P.; JOHANN,SUSANA; LIMA,LUCIANA A.R.S..
ABSTRACT Fatty acid methyl esters (FAMEs) were obtained from vegetable oils of soybean, corn and sunflower. The current study was focused on evaluating the antifungal activity of FAMEs mainly against Paracoccidioides spp., as well as testing the interaction of these compounds with commercial antifungal drugs and also their antioxidant potential. FAMEs presented small IC50 values (1.86-9.42 μg/mL). All three FAMEs tested showed antifungal activity against isolates of Paracoccidioides spp. with MIC values ranging from 15.6-500 µg/mL. Sunflower FAMEs exhibited antifungal activity that extended also to other genera, with an MIC of 15.6 μg/mL against Candida glabrata and C. krusei and 31.2 μg/mL against C. parapsilosis. FAMEs exhibited a synergetic effect with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antifungal; Antioxidant; Fatty acid methyl esters; Vegetable oils.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401671
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Antioxidant activity of oils extracted from orange (Citrus sinensis) seeds Anais da ABC (AABC)
Jorge,Neuza; Silva,Ana Carolina da; Aranha,Caroline P.M..
Due to the increasing production of food in the world with consequent increase of the production of waste, the importance of developing researches for its use is noticed. Thus, the interest in vegetable oils with bioactive compounds, such as the ones extracted from fruit seeds, is growing. Therefore, the present study aims to characterize the oils extracted from seeds of Hamlin, Natal, Pera-rio and Valencia orange varieties (Citrus sinensis), as to the levels of total carotenoids, total phenolic compounds, tocopherols and phytosterols, as well as to determine their antioxidant activity. The orange seed oils presented important content of total carotenoids (19.01 mg/kg), total phenolic compounds (4.43 g/kg), α-tocopherol (135.65 mg/kg) and phytosterols...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agro-industrial waste; Phytosterols; Tocopherols; Vegetable oils.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300951
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Caracterização físico-química de óleos para fins combustíveis. Infoteca-e
SZPIZ, R. R.; JABLONKA, F. H.; PEREIRA, D. A..
bitstream/item/118237/1/caracterizacao-fisico-quimica-de-oleos.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Oleos vegetais; Composicao fisico-quimica; Vegetable oils; Chemicophysical properties; Combustible.; Combustível..
Ano: 1983 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/410538
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Chemical composition, microbiological properties, and fatty acid profile of Italian-type salami with pork backfat substituted by emulsified canola oil Ciência Rural
Backes,Angela Maria; Cavalheiro,Carlos Pasqualin; Stefanello,Flávia Santi; Lüdtke,Fernanda Luísa; Terra,Nelcindo Nascimento; Fries,Leadir Lucy Martins.
ABSTRACT: Vegetable oils have been used to substitute pork backfat to improve the fatty acid profile of fermented sausages. The aim of this study was to assess the chemical composition, microbiological properties, and fatty acid profile of Italian-type salami with pork backfat substituted (15% and 30%) by emulsified canola oil. Fat contents decreased while moisture contents increased in Italian-type salami with emulsified canola oil. The growth of lactic acid bacteria in salami was not affected by canola oil and absence of fecal coliforms, coagulase-positive staphylococci, and Salmonella were reported during processing of fermented sausages. Lower levels of saturated fatty acids (SAFAs), higher levels of monounsaturated fatty acids (MUFAs) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fermented sausages; Vegetable oils; Lipid content; Polyunsaturated fatty acids; Nutritional value.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800751
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Chemical quality of Baru almond (Dipteryx alata oil) Ciência Rural
Siqueira,Ana Paula Silva; Castro,Carlos Frederico de Souza; Silveira,Eduardo Vieira; Lourenço,Marcos Felipe de Castro.
ABSTRACT: Vegetable oils are suitable for human consumption as part of a healthy diet and native fruits of the cerrado, such as almond baru, which are natural sources of these oils. This study informed about the quality of baru oil having as a basis for comparison, soybean oil and olive oil, usually consumed in human diet. Analyzes of acid value, peroxide and iodine for the three oils and fatty acid composition for the baru oil were performed according to official standard methodology. Baru oil has the potential to be part of the human consumption, in healthy diets similarly to soybean oil and olive oil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Baru oil; Vegetable oils; Dipteryx alata Vog..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001865
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Cholesterol levels and nutritional composition of commercial layers eggs fed diets with different vegetable oils Rev. Bras. Ciênc. Avic.
Faitarone,ABG; Garcia,EA; Roça,R de O; Ricardo,H de A; Andrade,E N de; Pelícia,K; Vercese,F.
This experiment aimed at evaluating the effects of the supplementation of different vegetable oils at different levels to the diet of commercial layers on egg cholesterol levels and nutritional composition (proteins, total solids, lipids, and ashes) for 112 days. Birds were distributed according to a completely randomized experimental design with 10 treatments (T1 - control; T2 - inclusion of 2.5% rapeseed oil; T3 - inclusion of 2.5% canola oil; T4 - inclusion of 2.5% soybean oil; T5 - inclusion of 5% rapeseed oil; T6 - inclusion of 5% canola oil; T7 - inclusion of 5% soybean oil; T8 - inclusion of 2.5% rapeseed oil + 2.5% soybean oil; T9 - inclusion 2.5% canola oil + 2.5% soybean oil; T10 - inclusion of 2.5% rapeseed oil + 2.5% canola oil) of six...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fatty acids; Cholesterol; Nutritional composition; Vegetable oils; Commercial eggs.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100006
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Competitiveness of Two Macauba Productive Chains in Brazil. Repositório Alice
PIRES, P.; CESAR, A.; CARDOSO, A.; FAVARO, S. P.; CONEREJO, M. A..
bitstream/item/202294/1/Book-of-Abstracts-Hohenheim-2019.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Family Farming; Sustainability; Vegetable oils; Acrocomia.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112460
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Effect of dietary lipid sources on odour-active compounds in muscle of turbot (Psetta maxima) ArchiMer
Serot, Thierry; Regost, Christelle; Prost, Carole; Robin, Jean; Arzel, Jacqueline.
Odour-active compounds in muscle of turbot (Psetta maxima) fed experimental diets containing fish oil (FO), soybean oil (SO) or linseed oil (LO) were investigated by a gas chromatography/olfactometry technique. Thirty-one areas associated with odours were detected in muscle extracts. Among the compounds responsible for these odours, 23 were formed by oxidation of unsaturated fatty acids. Independently of diet, (E)-2-penten-1-ol and (E)-3-hexen-1-ol contribute strongly to the odour of turbot. (E,Z)-2,6-Nonadienal, (E)-2-pentenal and (E,E)-1,3-(Z)-5-octatriene seem to contribute strongly to the odour of turbot fed diets containing high levels of n-3 PUFA (FO and LO groups). Hexanal and decanal show a high detection frequency in turbot fed diets containing...
Tipo: Text Palavras-chave: Vegetable oils; Turbot; Olfactometry; Odour active compounds.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-683.pdf
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Evaluation of Oxidative Stability of Compound Oils under Accelerated Storage Conditions BABT
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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Extent and Impact of Vegetable Oils Import Surges in Cameroon AgEcon
Pingpoh, David Puewoh; Senahoun, Jean.
The trade liberalization has resulted in massive food imports into Cameroon and this is affecting the livelihoods of the farmers, industries, traders, and service providers of the imported foods. Cameroon was selected by FAO as one of the 12 country case studies on the impact of food import surges in developing countries with the overall objective of studying and analyzing the impact of the most prevalent and frequent surge commodities (poultry meat, rice, and vegetable oils) on stakeholders. The methods and analytical approach used for this study are those for WTO Safeguards investigation as outlined in the FAO working document, “Extent and impact of food import surges in developing countries: An analytical approach and research methodology for country...
Tipo: Conference Paper or Presentation Palavras-chave: Impact; Vegetable oils; Import surge; International Relations/Trade.
Ano: 2008 URL: http://purl.umn.edu/44369
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Farelo de mamona destoxificado na dieta de cabras leiteiras. Repositório Alice
FERNANDES, M. F..
Resumo: Além das questões ambientais e econômicas, a produção de biocombustíveis desperta interesse pela possibilidade de geração de alimentos alternativos para a nutrição animal. A mamona, como uma dessas fontes, gera subprodutos que, pela sua toxicidade, não podem ser utilizados na ração animal sem prévia destoxificação. Objetivou-se com esse estudo destoxificar o farelo de mamona e avaliar a sua utilização na alimentação animal. O hidróxido de sódio (NaOH) foi utilizado para destoxificar o farelo de mamona. A hidrólise da ricina foi obtida quando se utilizou a proporção mínima de 1:34:84 (p/p) de NaOH:farelo:água, referente ao tratamento com 30 g de NaOH e 2500 mL de água. A confirmação da destoxificação foi realizada através da SDS-PAGE utilizando...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Caprino leiteiro; Nutrição animal; Alimento para animal; Planta oleaginosa; Mamona; Farelo; Subproduto; Óleo vegetal; Energia vegetal; Biocombustível; Biodiesel; Ricinus communis; Ricina; Destoxificação; Goat milk; Detoxification; Lipid modification; Alternative food; Animal nutrition; Ricin; Vegetable oils; Byproducts.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/939600
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Identification of odour-active compounds in muscle of brown trout (Salmo trutta) as affected by dietary lipid sources ArchiMer
Serot, Thierry; Regost, Christelle; Arzel, Jacqueline.
The effect of fatty acid composition on odour-active compounds in brown trout (Salmo trutta) muscle was evaluated. The fillets were obtained from three groups of fish fed experimental diets containing either fish oil (170), soybean oil (SO) or linseed oil (LO). Muscle fatty acid composition was shown to be influenced by diet. Thirty-one odorous compounds were detected by gas chromatography/olfactometry (frequency-of-detection method). Most of these compounds were formed by the oxidation of unsaturated fatty acids. Independently of diet, (E)-2-pentenal, (E)-2-pentenol and (E)-2-hexenol contribute strongly to the odour of brown trout. (E,Z)-2,4-Heptadienal was detected with high frequency in fish fed diets containing high levels of n-3 PUFAs (FO and LO...
Tipo: Text Palavras-chave: Vegetable oils; Olfactometry; Odour active compounds; Brown trout.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/publication-722.pdf
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Impact and competitiveness of EU biofuel market – First view of the prices of biofuel market in relation to the global players AgEcon
Liu, Xing.
The goal of this study is to investigate the price relationship of EU biofuel market with other main markets in both horizontal level and vertical level. We first carry out Granger causality between ethanol price of EU, USA and Brazil. Secondly, we use vecto error cointegration Mechnism (VECM) to test the relationship between three selected vegetable oil prices in EU to see the competive potential of EU rapeseed oil compared with imported crude palm oil and soybean oil as the feedstock of biodiesel. Evidence shows that there is a unidirectional Granger causation from both USA and Brazil to EU market. USA price of ethanol is the most influential among the three price series, and EU has the least influence on the contrary. It indicates that it is very...
Tipo: Conference Paper or Presentation Palavras-chave: Ethanol; Vegetable oils; Feedstock; Directives; VECM; Granger causality; Crop Production/Industries; International Relations/Trade; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/6501
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In vivo cytogenetic effects of multiple doses of dietary vegetable oils Genet. Mol. Biol.
Evangelista,Cristina Márcia Wolf; Antunes,Lusânia Maria Greggi; Bianchi,Maria de Lourdes Pires.
Polyphenols are potent antioxidants that are particularly abundant in the Mediterranean diet, with olive oil being the main fat source. A number of investigations have reported that phenolic compounds found in dietary oils are antioxidants and could provide protective effects by inhibiting DNA oxidative damage. However, few studies have been published on the biological activity of vegetable oils, including their possible mutagenic/antimutagenic effects. The objective of the current study was to investigate the cytogenetic effects of multiple doses of four vegetable oils in rat bone marrow cells and to examine the possible antimutagenic effects of these oils in chromosomal damage induced by the antitumor drug cisplatin. These oils are consumed by humans and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimutagenesis; Chromosomal aberrations; Vegetable oils; Wistar rats.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400024
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Lethal and sublethal effects of babassu and degummed soybean oils on the predatory mite Typhlodromus ornatus (Acari: Phytoseiidae) Repositório Alice
SARAIVA, W. V. A.; VIEIRA, I. G.; GALVÃO, A. S.; AMARAL, E. A. do; RÊGO, A. S.; TEODORO, A. V.; DIAS, N. da S..
bitstream/item/213816/1/ART20027.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Repelência; Seletividade; Toxicidade; Óleos vegetais; Repellency; Vegetable oils; Taxa de Crescimento; Specific growth rate; Pesticide selectivity; Toxicity.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123121
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Lipid formation and γ-linolenic acid production by Mucor circinelloides and Rhizopus sp., grown on vegetable oil BJM
Tauk-Tornisielo,Sâmia M.; Arasato,Luciana S.; Almeida,Alex F. de; Govone,José S.; Malagutti,Eleni N..
The fungi strains were tested in Bioscreen automated system to select the best nutritional source. Following, shaking submserse cultures were studied in media containing sole carbon or nitrogen source. The growth of these strains improved in media containing vegetable oil, with high concentration of lipids. The high concentration of γ-linolenic acid was obtained with M. circinelloides in culture containing sesame oil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Automated system; Vegetable oils; Zigomycetes; Γ-linolenic acid; Liquid culture.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000200025
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Los lípidos, componente indispensable en la dieta para niños OceanDocs
Santana, T.; Camejo, J..
El objetivo de esta reseña fue destacar la importancia que tiene la presencia de las grasas y los aceites vegetales en la dieta para niños. En el trabajo se exponen las características fundamentales de ambos grupos de lípidos. Se compara la grasa láctea y la grasa materna en cuanto a composición, haciendo énfasis en esta última debido a que los alimentos para infantes deben mantener la relación de ácidos grasos esenciales en el mismo orden en que se encuentran en la grasa materna. Se resumen los requerimientos de grasa del niño en distintas etapas de su vida, la composición de los aceites vegetales más utilizados en la elaboración de los alimentos, así como algunos aspectos a tener en cuenta al seleccionar una grasa para utilizar en la alimentación infantil.
Tipo: Journal Contribution Palavras-chave: Milk; Lipids; Acids; Oils; Reviews (literature); Milk fat; Essential fatty acids; Human milk; Vegetable oils.
Ano: 2008 URL: http://hdl.handle.net/1834/5020
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Oxidative stability of soybean oil added to coffee husk extract (Coffea arabica L.) under accelerated storage conditions Ciênc. Tecnol. Aliment.
RIBEIRO,Elisa Franco; JORGE,Neuza.
Abstract Several plants have been studied as potential sources of natural antioxidants for use in the food industry, especially polyphenols. The aim of this study was to evaluate the effects of hydroalcoholic extract from coffee husk on the oxidative stability of soybean oil when stored in an oven. Samples were maintained at a temperature of 60 °C and their oxidative stability was evaluated once every 5 days for a period of 20 days through the Rancimat equipament and analysis of peroxide value, conjugated dienes and tocopherols retention. The oxidation rate in terms of mass gain was evaluated once every 24 hours for a period of 24 days. Although the antioxidant TBHQ showed a better efficiency in the inhibition of oxidation, coffee husk extract showed a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vegetable oils; Natural antioxidant; Mass gain; Agro-industrial waste; Tocopherols.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000700005
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Total replacement of fish oil by soybean or linseed oil with a return to fish oil in Turbot (Psetta maxima) 2. Flesh quality properties ArchiMer
Regost, Christelle; Arzel, Jacqueline; Cardinal, Mireille; Rosenlund, Grethe; Kaushik, Sadasivam.
The aim of this study was to evaluate (1) the effects of replacement of fish oil by vegetable oils on flesh quality and (2) the effects of a washout with a return to fish oil on flesh quality of turbot. In a first period of 3 months, three isonitrogenous and isolipidic diets containing 9% of added marine fish oil (170), soybean oil (SO) or linseed oil (LO) were fed to triplicate groups of 25 marketable size turbot (initial body weight: 579 +/- 1 g) grown in sea water at the temperature of 17 degreesC. At the end of the first period, all groups of turbot were fed with the diet containing fish oil (diet FO) for a further period of 2 months. The gutted and fillet yields were not affected by the incorporation of vegetable oils. However, soybean or linseed oils...
Tipo: Text Palavras-chave: Sensory analyses; Texture; Washout period; Vegetable oils; Psetta maxima.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-385.pdf
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