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| Registros recuperados: 18 | |
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| Gallegos Cossío, Daniel. |
| Se estudio el efecto del potencial osmótico (Ψo) de la solución nutritiva sobre la concentración de licopeno en el fruto de tomate, para lo cual se desarrolló un experimento factorial en condiciones hidropónicas en un sistema abierto. Se estudiaron 4 niveles de (Ψo): -0.072, -0.0804, -0.088 y -0.096 MPa, y tres tipos de tomate, saladette, bola y cherry. Se evaluó la concentración de licopeno en el fruto, así como la concentración potasio en hoja y fruto, además del peso de frutos del primer racimo, firmeza del fruto, acidez titulable, sólidos solubles totales y vitamina C. Los frutos que presentaron la mayor concentración de licopeno fueron aquellos a los que se aplicó la solución nutritiva con Ψo de -0.096 MPa. _______________ OSMOTIC POTENTIAL EFFECT... |
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Palavras-chave: Hidroponía; Licopeno; Potasio; Hydroponics; Lycopene; Potassium; Edafología; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/717 |
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| Edinger,M.S.; Koff,W.J.. |
| The consumption of tomatoes and tomato products has been associated with a reduced risk of prostate cancer. We observed a decrease of 10.77% in prostate-specific antigen (PSA) levels in patients with benign prostate hyperplasia who were submitted to daily ingestion of tomato paste. This was an experimental rather than a controlled study with a sample of 43 men ranging in age from 45 to 75 years, all with histological diagnoses of benign prostate hyperplasia and plasma PSA levels of 4-10 ng/mL. All patients received 50 g of tomato paste once a day for 10 consecutive weeks and PSA levels were analyzed before, during and after the consumption of tomato paste. ANOVA for repeated measures was used to compare PSA levels before, during and after the consumption... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Prostate cancer; Prostate-specific antigen; Tomatoes; Tomato paste; Lycopene. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000800014 |
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| Fontes,Paulo Cezar Rezende; Sampaio,Regynaldo Arruda; Finger,Fernando Luiz. |
| An experiment was conducted to determine the fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium fertilizer rates. Six potassium (K) rates were applied as KCl, corresponding to 0, 48.4, 118.6, 188.8, 259.0 and 399.4 kg ha-1, with four replicates, following a randomized block design. Quadratic responses to K rates were observed for double extra large (diameter > 60 mm), extra large (56 to 60 mm) and large (52 to 56 mm) fruit yields. Maximum yields of these classes were achieved with K rates of 116, 190 and 233 kg ha-1, respectively. Fruit dry matter, phosphorus, sulfur and magnesium contents were not affected by K rates, but nitrate and K contents showed significant increments as K rates were increased.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Lycopene; Soluble solids; Acidity. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000100003 |
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| Pandir,Dilek; Unal,Betul; Bas,Hatice. |
| Furan is a food and environmental contaminant and a potent carcinogen in animals. Lycopene is one dietary carotenoid found in fruits such as tomato, watermelon and grapefruit. The present study was designed to explore the protective effect of lycopene against furan-induced oxidative damage in streptozotocin (STZ)-induced diabetic rat kidney. At the end of the experimental period (28 days), we found that lycopene markedly decreased the malondialdehide (MDA) levels in the kidney, urea, uric acid and creatinine levels in the serum of furan-treated rats. The increase of histopathology in the kidney of furan-treated rats were effectively suppressed by lycopene. Furthermore, lycopene markedly restored superoxide dismutase (SOD), catalase (CAT), glutathione... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Furan; Lycopene; Kidney; Oxidative stress; Diabetes. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100314 |
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| Pacheco,Sidney; Peixoto,Fernanda Marques; Borguini,Renata Galhardo; Nascimento,Luzimar da Silva de Mattos do; Bobeda,Claudio Roberto Ribeiro; Santiago,Manuela Cristina Pessanha de Araújo; Godoy,Ronoel Luiz de Oliveira. |
| In order to generate simple, efficient analytical methods that are also fast, clean, and economical, and are capable of producing reliable results for a large number of samples, a micro scale extraction method for analysis of carotenoids in vegetable matrices was developed. The efficiency of this adapted method was checked by comparing the results obtained from vegetable matrices, based on extraction equivalence, time required and reagents. Six matrices were used: tomato (Solanum lycopersicum L.), carrot (Daucus carota L.), sweet potato with orange pulp (Ipomoea batatas (L.) Lam.), pumpkin (Cucurbita moschata Duch.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and sweet potato (Ipomoea batatas (L.) Lam.) flour. Quantification of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-carotene; Α-carotene; Lycopene. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500011 |
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| Leiva-Brondo,Miguel; Valcarcel,Mercedes; Martí,Raúl; Roselló,Salvador; Cebolla-Cornejo,Jaime. |
| ABSTRACT The development of varieties with a high content of antioxidant compounds, such as carotenoids, has become a major focus in the marketing of tomato. Several mutants have been used in the development of high pigment varieties, but the significant influence of the environment on carotenoid content and the presence of negative side effects in vegetative growth and yield have limited the success of these variants. Consequently, the identification of alternative sources of variation in the quest for high carotenoid content is ongoing. In this study, 12 accessions of Solanum lycopersicum (including the former var cerasiforme) and S. pimpinelifolium have been evaluated in three different environments: open field and glasshouse cultivation at two sites.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Functional quality; Lycopene; Β-carotene; Genetic resources. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000600512 |
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| Islam,Mohammad Zahirul; Mele,Mahmuda Akter; Choi,Ki-Young; Kang,Ho-Min. |
| ABSTRACT This study was conducted to investigate the effects of nutrient and salinity concentrations on the quality of deepflow technique hydroponic system cultivated cherry tomatoes (Lycopersicon esculentum Mill ‘Unicorn’). The conditions were: (1) control (NS-1 × nutrient Solution, Electrical Conductivity – EC: 2.5 mS∙cm–1); (2) 2 × NS (2 × NS-Double NS, EC: 5 mS∙cm–1); (3) NS + 4.23 mM NaCl (NaCl-Sodium Chloride, EC: 5 mS∙cm–1); and (4) NS + 13.70 mM Sea Water – SW (EC: 7.5 mS∙cm–1). NS + 13.70 mM SW treatment showed the lowest fresh weight loss. Visual quality as well as shelf life was the longest in NS (1 × nutrient solution) treated tomato fruits. The longest shelf life at 5 °C, 11 °C, and 24 °C were 21, 16, and 8 days, respectively, in NS (1 ×... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Firmness; Lycopene; Soluble solids; Sugar; Titratable acidity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200385 |
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| Siueia Júnior,Matías; de Souza Silva,Maria Ligia; Trevizam,Anderson Ricardo; Faquin,Valdemar; da Silva,Deivisson Ferreira. |
| Abstract Nitrogen (N) and sulfur (S) are nutrients that, in addition to influencing plant growth and production, interfere with processes related to postharvest fruit quality. In the present study, N x S interaction was evaluated in the postharvest quality of tomato (Solanum lycopersicum L.). The experiment was conducted in a greenhouse using 5 dm3 capacity vessels containing a 0-20 cm layer of a dystropherric Red Latosol. A 5 x 3 factorial design was used, with combinations of five doses of N (0, 100, 200, 300 and 400 mg dm-3) and three doses of S (0, 60 and 120 mg dm-3) distributed in a completely randomized design, with four repetitions. After harvest, the attributes of fruit quality were evaluated: firmness, pH, soluble solids (SS), titratable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopene; Physicochemical quality; Solanum lycopersicum L; Soluble solids; Titratable acidity; Vitamin C. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122020000200130 |
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| Frías-Moreno,Maria Noemi; Espino-Díaz,Miguel; Dávila-Aviña,Jorge; Gonzalez-Aguilar,Gustavo Adolfo; Ayala-Zavala,Jesús Fernando; Molina-Corral,Francisco Javier; Parra-Quezada,Rafael Angel; Orozco,Guadalupe Isela Olivas. |
| ABSTRACT Intensive horticultural crop production usually involves challenges from excessive application of fertilizer, mainly nitrogen (N). The effect of N fertilizer on the fruit quality and antioxidant status of two cherry tomato cultivars (Caballero and Victoria) under greenhouse conditions was performed. Nitrogen treatments were applied ranging from conditions comprising deficiency to toxicity (0, 15, 30, 45 and 60 mmol∙L-1). Yield, weight, diameter, fruit quality, phenols, flavonoids, lycopene, ascorbic acid and antioxidant capacity were measured at physiological maturity of the fresh tomato fruits. N treatment with 30 mmol∙L-1 produced the highest yield, fruit weight, firmness and diameter in both cultivars. However, increasing N from 30 to 60... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Greenhouse; Ascorbic acid; Phenolics; Lycopene. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100134 |
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| Suárez-Hernández,Ángel Manuel; Vázquez-Angulo,Juan Carlos; Grimaldo-Juárez,Onecimo; Duran,Carlos Ceceña; González-Mendoza,Daniel; Bazante-González,Isidro; Mendoza-Gómez,Aurelia. |
| ABSTRACT Salinity of soil in arid and semiarid regions is a problem that affects the production and quality of fruit. That’s while we evaluated grafting on watermelon plants as an alternative to reduce the salinity effects. The experimental design was of randomized blocks, three treatments (cultivars Sangria, Summer Flavor 800 and Summer Flavor 840) with three repetitions. The cultivars were evaluated in grafted and ungrafted condition. The rootstock used for grafting was the interspecific hybrid Strong Tosa (C. maxima x C. moschata). In average terms for the three cultivars, grafting increased commercial production, weight, length and diameter of fruits in 160.5%, 36.5%, 12.0% and 7.5%, respectively. Sangria presented the best answer in production with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrullus lanatus; Graft; Salinity; Pulp color; Lycopene. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000200215 |
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| Liu,Chongbin; Wang,Rui; Zhang,Bo; Hu,Chen; Zhang,Hong. |
| Lycopene is common in diet and known for its antioxidant activities. However, the impact of lycopene on iron metabolism is poorly investigated. In this study, we hypothesize that lycopene can prevent iron-mediated oxidative stress, proliferation and autophagy in liver and use a rat model of nutritional iron supplementation to confirm its intervention in these defence mechanisms. We found that iron supplementation induced cell proliferation predominantly in non parenchymal cells compared with hepatocytes, but not apoptosis. In addition, iron was accumulated within the hepatic lysosomes where it triggered autophagy as evidenced by the formation of autophagic vesicles detected by LC3-B staining. Iron supplementation also induced morphologic alterations of the... |
| Tipo: Journal article |
Palavras-chave: Autophagy; Iron supplementation; Lycopene; Oxidative stress; Proliferation. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000200011 |
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| Registros recuperados: 18 | |
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