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1-Methylcyclopropene delays tomato fruit ripening Horticultura Brasileira
Moretti,Celso Luiz; Araújo,Alessandra L.; Marouelli,Waldir Aparecido; Silva,Washington Luiz C..
Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lycopersicon esculentum; Acidity; Color; Carotenoids; Ethylene; Firmness; Postharvest.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030
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Agronomic biofortification of carrot with selenium Ciência e Agrotecnologia
Oliveira,Vanuze Costa de; Faquin,Valdemar; Guimarães,Karina Carvalho; Andrade,Fabrício Ribeiro; Pereira,Joelma; Guilherme,Luiz Roberto Guimarães.
ABSTRACT The selenium (Se) is essential for human metabolism, but a large part of the world’s population has deficiency in this element. This can be reversed by the consumption of biofortified foods, given that plants can efficiently act in controlling excessive and/or accidental consumption of an element that can occur in humans through the use of dietary supplements. The objective of this study was to evaluate the effect of different application forms and sources of Se in the growth, production, nutrition, physical-chemical characteristics, content and accumulation of Se in carrots. The experiment was conducted under greenhouse conditions, using pots containing 4 dm3 of Red-yellow Latosol. A completely randomized design was used in a 2x2x2 factorial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Daucus carota Lam; Selenate; Selenite; Maturation index; Carotenoids.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200138
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ANTIOXIDANT CAPACITY OF PEQUI (Caryocar brasiliense Camb.) PULP IS PRESERVED BY FREEZE-DRYING AND LIGHT-RESISTANT PACKAGING Rev. Bras. Frutic.
NASCIMENTO,NARA RÚBIA RODRIGUES DO; ALVES,ALINE MEDEIROS; SILVA,MARA REIS; NAVES,MARIA MARGARETH VELOSO.
ABSTRACT Pequi (Caryocar brasiliense Camb.) pulp is rich in bioactive compounds. However, seasonality and perishability limit its availability in the market. This work aimed to determine the physicochemical characteristics, including phenolic compounds and carotenoid concentrations, as well as the antioxidant capacity of lyophilized pequi pulp during storage in various packaging materials for 180 days. Pequi fruits were pulped, ground, freeze-dried and then vacuum packaged in transparent polyethylene (TP), polyethylene coated by aluminum foil (PA) and laminated foil (LA), respectively. The samples were stored under controlled temperature, humidity and luminosity. Proximate composition, phenolic compounds and carotenoids concentrations, and antioxidant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidants; Carotenoids; Caryocar brasiliense; Cerrado; Pequi.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000100901
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Assessment of carotenoids in pumpkins after different home cooking conditions Ciênc. Tecnol. Aliment.
Carvalho,Lucia Maria Jaeger de; Smiderle,Lara de Azevedo Sarmet Moreira; Carvalho,José Luiz Viana de; Cardoso,Flavio de Souza Neves; Koblitz,Maria Gabriela Bello.
Carotenoids have antioxidant activity, but few are converted by the body into retinol, the active form of vitamin A. Among the 600 carotenoids with pro-vitamin A activity, the most common are α- and β-carotene. These carotenoids are susceptible to degradation (e.g., isomerization and oxidation) during cooking. The aim of this study was to assess the total carotenoid, α- and β-carotene, and 9 and 13-Z- β-carotene isomer contents in C. moschata after different cooking processes. The raw pumpkin samples contained 236.10, 172.20, 39.95, 3.64 and 0.8610 µg.g- 1 of total carotenoids, β-carotene, α-carotene, 13-cis-β-carotene, and 9-Z-β-carotene, respectively. The samples cooked in boiling water contained 258.50, 184.80, 43.97, 6.80, and 0.77 µg.g- 1 of total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pro-vitamin A; Carotenoids; Pumpkin landraces; C. moschata; Pumpkin meals; Α-carotene; Β-carotene; Β-carotene isomers.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000200022
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Atrazine and Mesotrione-Induced Oxidative Stress and Impact on Antioxidant Enzymes and Chlorophyll Contents in Bermudagrass Planta Daninha
WANG,Y.; YU,J.; ZHOU,B.; SAPKOTA,S.; WEI,F.; WANG,Z..
ABSTRACT: The effect of atrazine, mesotrione, and joint activity of atrazine plus mesotrione on pigment, lipid peroxidation, and antioxidant enzyme activity was studied. Atrazine and mesotrione treatments significantly reduced chlorophyll a (Chl a), chlorophyll b (Chl b), carotenoid concentrations, and protein content in bermudagrass (Cynodon dactylon L.) plants, whereas they significantly enhanced lipid peroxidation. The treatment of atrazine plus mesotrione caused greater phototoxic effect on bermudagrass than either herbicide alone, which was evident from the significantly decreased membrane stability noted as a function of the enhanced singlet oxygen and malondialdehyde (MDA) contents, as well as from the greater reduction in Chl a, Chl b, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidant; Carotenoids; Herbicide; Reactive oxygen species.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100337
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Bioactive compounds and antioxidant activity in fruits of clone and ungrafted genotypes of yellow mombin tree Ciênc. Tecnol. Aliment.
Silva,Fernanda Vanessa Gomes da; Silva,Silvanda de Melo; Silva,Gerciane Cabral da; Mendonça,Rejane Maria Nunes; Alves,Ricardo Elesbão; Dantas,Ana Lima.
Yellow mombin is a fruit tree that grows spontaneously in the Semi-Arid Northeastern Brazil. Its fruits are still extractively exploited. The pulp of yellow mombin fruit stands out regarding the commercial aspect due to the characteristic flavor and aroma felt when consumed in diverse ways. This study aimed to evaluate the presence of bioactive compounds, total extractable polyphenols, and antioxidant activity of yellow mombin fruits (Spondias mombin, L.), from clone and ungrafted genotypes. The fruits were harvested at commercial maturity from twelve yellow mombin tree genotypes from an experimental orchard located at the municipality of Joao Pessoa, Paraíba, Brazil, and evaluated for chlorophyll, carotenoids, yellow flavonoids, total extractable...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spondias mombin L.; Carotenoids; Polyphenols; Yellow flavonoids; Inhibition of oxidation; Plant breeding.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000400008
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BIOACTIVE COMPOUNDS AND ANTIOXIDANT ACTIVITY OF PINEAPPLE FRUIT OF DIFFERENT CULTIVARS Rev. Bras. Frutic.
FERREIRA,ESTER ALICE; SIQUEIRA,HELOISA ELIAS; BOAS,EDUARDO VALERIO VILAS; HERMES,VANESSA STAHL; RIOS,ALESSANDRO DE OLIVEIRA.
ABSTRACT Pineapple is widely consumed and appreciated not only due to its taste and aroma, and also to its nutritional, functional and antioxidant properties, including its vitamin C and carotenoid contents. Brazil is one of the largest world’ pineapple producer, and Pérola and Smooth Cayenne cultivars are the most commonly grown and marketed, but their susceptibility to fusariosis can compromise cultivation. New cultivars resistant to this pathogen are available to meet the demands of pineapple producers and consumers. The aim of this study was to evaluate the content of bioactive compounds and antioxidant activity of pineapple fruits of Imperial, Victoria, IAC Fantástico and Gomo de Mel cultivars, as well as traditional Pérola and Smooth Cayenne...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ananas comosuse; Fusariosis; Vitamin C; Phenolics; Carotenoids.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300801
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Bioactive compounds and antioxidant activity three fruit species from the Brazilian Cerrado Rev. Bras. Frutic.
Moreira-Araújo,Regilda Saraiva dos Reis; Barros,Nara Vanessa dos Anjos; Porto,Rayssa Gabriela Costa Lima; Brandão,Amanda de Castro Amorim Serpa; Lima,Alessandro de; Fett,Roseane.
Abstract The aim of this study was to determine the content of bioactive compounds and antioxidant activity present in three fruit species from the Brazilian Cerrado: carnauba (Copernicia prunifera (Mill.) H.E. Moore), murici (Byrsonima crassifolia L. Rich)and oiti (Licania tomentosa (Benth) Fritsch). Among analyzed fruits, oiti showed the highest total phenolic content (1236.42 ± 34.06 mg GAE 100 g-1) followed by murici (468.90 ± 27.30 mg GAE 100 g-1) and carnauba (314.44 ± 9.50 mg GAE 100 g-1). Regarding the antioxidant activity, murici showed 4350.31 ± 1.85 µmol TEAC.100 g-1 and oiti showed 14721.69 ± 0.85 µmol TEAC.100 g-1. In addition, high content of anthocyanins was verified in carnauba (9.35 ± 0.00 mg-cy-3-glu.100 g-1), as well as carotenoids...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidants; Anthocyanins; Carotenoids; Phenolic compounds; Cerrado.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000300901
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Bioactive compounds and total antioxidant capacity of cashew apples (Anacardium occidentale L.) during the ripening of early dwarf cashew clones Ciência e Agrotecnologia
Lopes,Mônica Maria de Almeida; Miranda,Maria Raquel Alcântara de; Moura,Carlos Farley Herbster; Enéas Filho,Joaquim.
Lately, tropical fruit consumption has increased due to a higher knowledge of its nutritional and therapeutic value. The aim of this work was to evaluate the antioxidant potential of cashew apples from different early dwarf clones during their ripening. The clones analyzed included: CCP 76, CCP 09, BRS 189 and BRS 265 in seven ripening stages. They were analyzed for vitamin C, total carotenoid, total anthocyanin, yellow flavonoids and polyphenol content and total antioxidant capacity. Clone BRS 265 ripe cashew apple presented the highest vitamin C content (279.37 mg x 100 g-1). The ripe BRS 189 cashew apple is colored bright red, and its total anthocyanin content was the highest (21.16 mg x 100 g-1). The yellow flavonoids content was higher for ripe CCP 76...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polyphenols; ABTS; Vitamin C; Carotenoids; Food analysis.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000300008
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BIOACTIVE COMPOUNDS DURING THE MATURATION OF FOUR FRUITS NATIVE TO THE RESTINGA FOREST OF CEARA Rev. Bras. Frutic.
GONÇALVES,NIGÉRIA PEREIRA; LUCENA,ELISEU MARLÔNIO PEREIRA DE; BONILLA,ORIEL HERRERA; SILVEIRA,MÁRCIA RÉGIA SOUZA DA; TAVARES,FRANCISCA JÉSSICA COSTA.
ABSTRACT Fruits provide not only essential nutrients for food, but also bioactive compounds that promote health benefits and help reducing the risk of developing non-communicable chronic diseases. In this sense, this work aimed at quantifying bioactive compounds during the maturation of four fruits native to the Restinga forest of Ceara. Myrtle fruits (Eugenia punicifolia (Kunth) DC.) were collected at the Botanical State Park of Ceara, Caucaia-CE, and guajiru (Chrisobalanus icaco L.), manipuça (Mouriri cearensis Huber) and murici-pitanga fruits (Byrsonima gardneriana A. Juss.) at the Botanical Garden of São Gonçalo, São Gonçalo do Amarante-CE. Fruits were collected at different stages (E) and transported to the Laboratory of Plant Ecophysiology, being...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascorbic acid; Chlorophyll; Carotenoids; Anthocyanins; Yellow flavonoids.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500303
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Biochemical and bioactive phytonutrients changes in tissues of two cultivars of fresh-cut cassava in stick form under refrigerated storage Ciência Rural
Junqueira,Mateus da Silva; Simões,Adriano do Nascimento; Sediyama,Tocio; Côrrea,Paulo Cesar; Puschmann,Rolf.
The aim of this study was to evaluate the effects of fresh-cut in stick form of two cassava cultivars on their biochemical and antioxidant characteristics, at two harvest times. The fresh cut cassava sticks were packaged in polypropylene, maintained at 5±1ºC, with 90±5% relative humidity for 12 days. The concentration of carotenoids, total soluble phenolic compounds and the activity of phenylalanine ammonia lyase and antioxidant capacity were significantly higher for the sticks of cultivar 'Amarela' cassava than for the sticks of cultivar 'Cacau'. The concentrations of carotenoids, total soluble phenolic compounds, and the activity of phenylalanine ammonia lyase and antioxidant capacity were all significantly greater when harvested at 14-month of age....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Carotenoids; PAL; Quality; Antioxidant capacity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701284
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Centesimal composition and bioactive compounds in fruits of buriti collected in Pará Ciênc. Tecnol. Aliment.
Manhães,Luciana Ribeiro Trajano; Sabaa-Srur,Armando Ubirajara Oliveira.
The link between diet and the incidence of chronic and degenerative diseases has already been established. The foods that play a role in preventing and/or treating these diseases are called functional foods. Buriti can be highlighted amongst these foods since it is an excellent source of vegetable oil, which is rich in β-carotene and oleic acid. This research evaluated the potential of the pulp of this fruit as a functional food focusing on its incorporation to the diet. Buriti pulp presented 62.93% moisture, 8.25% total carbohydrates, and 2.10% protein. The lipid fraction corresponded to 13.85%, and oleic acid was the main fatty acid. It also contained 0.94% total mineral content. Based on the results obtained, it can be said that the pulp of buriti may...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Buriti; Mauritia flexuosa; Functional food; Oleic acid; Carotenoids; Antioxidant substances.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400005
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Characterization and optimization of oil microcapsules from Attalea phalerata Mart. for the preservation of bioactive compounds BJPS
Lima,Fernando Freitas de; Lescano,Caroline Honaiser; Oliveira,Elaine Florinda Rodrigues de; Fakhouri,Farayde Matta; Moraes,Izabel Cristina Freitas; Kassuya,Cândida Aparecida Leite; Sanjinez-Argandoña,Eliana Janet.
This study aimed microencapsulating Attalea phalerata Mart. oil, containing high carotenoid and phenolic compounds content, with Arabic gum and gelatin, using the complex coacervation method. The yield, efficiency, morphology of microcapsules and content of phenolic compounds, carotenoids and antioxidant activity in different processes conditions (concentration of the filling, temperature and agitation speed) were evaluated. The results showed 88% of yield, efficiency up to 70% and a characteristic size of microcapsules. The amount of carotenoids was high in crude oil (394.84 µg of carotenoids/g oil) and the microencapsulation tests showed amounts of 19.19 to 166.40 µg of carotenoids/g oil. The phenolic compounds in the crude oil were 20.73 mg GAE/g sample...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carotenoids; Phenolic compounds; Antioxidant activity; Bioactive compounds; Bioactive maintenance.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100580
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Chemical and physicochemical characteristics changes during passion fruit juice processing Ciênc. Tecnol. Aliment.
Fernandes,Aline Gurgel; Santos,Gerusa Matias dos; Silva,Daniele Sales da; Sousa,Paulo Henrique Machado de; Maia,Geraldo Arraes; Figueiredo,Raimundo Wilane de.
Passion fruit is widely consumed due to its pleasant flavour and aroma acidity, and it is considered very important a source of minerals and vitamins. It is used in many products such as ice-cream, mousses and, especially, juices. However, the processing of passion fruit juice may modify the composition and biodisponibility of the bioactive compounds. Investigations of the effects of processing on nutritional components in tropical juices are scarce. Frequently, only losses of vitamin C are evaluated. The objective of this paper is to investigate how some operations of passion fruit juice processing (formulation/homogeneization/thermal treatment) affect this product's chemical and physicochemical characteristics. The results showed that the chemical and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Passion fruit juice; Hot fill process; Thermal treatment; Vitamin C; Carotenoids; Industrial processing.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300030
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Contents of Pigments and Activity of Antioxidant Enzymes in Rice Plants Pre-Treated with Sodium Nitroprusside and Exposed to Clomazone Planta Daninha
SILVA,K.S.; TABALDI,L.A.; ROSSATO,L.V.; CAVICHIOLI,B.M.; BASÍLIO,V.B.; MACHADO,S.L.O..
ABSTRACT: The pre-treatment of rice seeds with sodium nitroprusside (SNP) was used to investigate the effect of exogenous nitric oxide on the pigment content and the activity of antioxidant enzymes during the inhibition of the 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway by the herbicide clomazone. The seeds were soaked in SNP solution (200 mM) for one and 10 hours and sprayed with clomazone, at post-seeding and at the needle-point, with 612 (experiment 1) and 1,224 g a.i. ha-1 (experiment 2). The control of both factors received distilled water. Carotenoids, chlorophylls a, b and total, superoxide dismutase (SOD), guaiacol peroxidase (POD) and the correlation between the variables were evaluated in the shoot of the plants. When compared to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll; Carotenoids; Oryza sativa; Superoxide dismutase; Guaiacol peroxidase.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100231
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Controlled atmosphere maintains native and cultivated yerba mate quality during shelf life after long-term storage Bragantia
Thewes,Fabio Rodrigo; Brackmann,Auri; Schultz,Erani Eliseu; Machado,Eduardo Perkovski; Ludwig,Vagner; Santos,Luana Ferreira dos.
ABSTRACT Yerba mate shows social and economic importance for the Southern Latin American countries due to its easy production and large market range. However, there is a problem to harvest the yerba mate at the correct period and to store it until processing and marketing. Thus, the aim of this paper was to evaluate the interaction among the storage in controlled atmosphere, effect of cultivation form and shelf life period on yerba mate quality after long-term controlled atmosphere storage. The experiment was conducted in a factorial arrangement (3 controlled atmosphere conditions × 2 cultivation forms × 4 weeks of shelf life). Native yerba mate, stored under controlled atmosphere, showed higher chlorophyll concentration as compared to the cultivated one....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ilex paraguariensis; Coloration; Chlorophyll concentration; Carotenoids; Phenolic compounds.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200230
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Cooking effects on bioactive compounds and sensory acceptability in pumpkin (Cucurbita moschata cv. Leite) Rev. Ciênc. Agron.
Silva,Maria de Fátima Gomes da; Sousa,Paulo Henrique Machado de; Figueiredo,Raimundo Wilane; Gouveia,Sandro Thomaz; Lima,Jorgiane Silva Severino.
ABSTRACT The present study aimed to compare the changes in the bioactive compounds, color parameters and to determine consumer opinions through sensory analysis of the pumpkin using different cooking methods (boiling, steaming, microwaving and sous vide). The cooking methods reduced the ascorbic acid content (49.73-50.42%) and polyphenols (49.68-64.94%). Microwaving increased the carotenoid content by 24.58%. The brightness (L*), red color (a*) and yellow color (b*) were reduced and there was also the loss of vivid color (chroma). The color of samples was affected after cooking process. All cooking methods were well accepted by the tasters, representing different market niches and many consumers expressed the intention of purchasing these products. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Curcubita moscata; Total polyphenols; Carotenoids; Sensorial acceptance; Gastronomy.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300394
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Critical review: cholesterol and fat-soluble vitamins on shrimp feeding Sci. Agrar.Paran. / SAP
Lima, Rodrigo Barbosa; Figueiredo-Lima, Denise Fontana.
Four types of poly unsaturated fatty acids (PUFA) are essential for all shrimp species, linoleic (LOA, 18:2n-6), alfa-linolenic (ALA, 18:3n-3), eicosapentaenoic (EPA, 20:5n-3) and docosahexaenoic (DHA, 22:6n-3) acids. Moreover, the arachidonic acid (ARA, 20:4n-6), even when present, seems to be, in crustaceans, not so important or yet dispensable. It is relevant knowing that cholesterol as much as PUFA are not well absorbed when not followed by a substantial amount of lecithin, reaching 5% of the ration. The sum of PUFA reaches around 3% of the diet, even varying according to the species, stage and ration type. For Penaeus monodon a complex mathematic model was formulated in order to describe the relationships between the requirements of the cited PUFA....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carotenoids; Cholesterol; Fat-soluble vitamins; Nutritional requirement; Phospholipids; Syndromes..
Ano: 2017 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13996
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Cuantificación de flavonoides y carotenoides en variedades de caléndula (Calendula officinalis L.) y descriptores varietales. Colegio de Postgraduados
Palma Tenango, Mariana.
Caléndula (Calendula officinalis L.) es una planta herbácea anual que destaca por los usos medicinales de sus capítulos (flores). En esta especie se ha demostrado diversidad genética y de composición química entre variedades. En México no se cultivan diferentes variedades ni se ha investigado la variación posible en el rendimiento de capítulos, concentración de flavonoides y carotenoides en función de la variedad y de cortes, como es el efecto causado por cosechas continuas de los capítulos florales. El objetivo de este estudio fue determinar el rendimiento, concentración de flavonoides y carotenoides en seis variedades de caléndula aquí seleccionadas, cuyos capítulos fueron cosechados a lo largo de siete cortes en 2010 y de nueve cortes en 2011, de...
Palavras-chave: Caléndula; Flavonoides; Carotenoides; Descripción varietal; Pot marigold; Flavonoids; Carotenoids; Description varietal; Fisiología vegetal; Doctorado.
Ano: 2014 URL: http://hdl.handle.net/10521/2274
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Determinação de betacaroteno e licopeno em frutas e hortaliças por cromatografia líquida de alta eficiência (Clae). Infoteca-e
CORREA, L. C.; DIAS, R. de C. S.; SOUZA, R. de C. R. de; MARTINS, S. S.; SILVA, P. T. de S. e.
O objetivo desse estudo foi quantificar betacaroteno e licopeno em diferentes matrizes vegetais por cromatografia líquida. Os carotenoides foram identificados e quantificados por Clae. A metodologia foi validada avaliando-se os parâmetros de seletividade, linearidade, limites de detecção e quantificação, exatidão e precisão. A seletividade foi confirmada por meio dos tempos de retenção e dos espectros de absorção dos padrões de betacaroteno e licopeno. A linearidade foi confirmada por meio do R2de 0,999 para os dois compostos. Os limites de detecção e quantificação para o licopeno foram de 0,07 mg.L -1 e 0,22 mg.L -1, respectivamente, e para o betacaroteno, de 0,01 mg.L- e 0,05 mg.L-1. A repetibilidade variou de 0,75 a 1,27 (CV %) e de 0,80 a 1,64 (CV %)...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Composto químico; Matrizes vegetal; Cromatografia líquida; Metodologia; Análise química; Cenoura; Manga; Melancia; Carotenoide; Carotenoids; HPLC.
Ano: 2015 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/1042355
Registros recuperados: 83
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