Retinol, total carotenoids, .beta.-carotene, and tocopherols in total diets of male adolescents in the Netherlands

1990 ◽  
Vol 38 (1) ◽  
pp. 211-216 ◽  
Author(s):  
Wim Van Dokkum ◽  
Rudi H. De Vos ◽  
Jaap Schrijver
10.5219/1423 ◽  
2020 ◽  
Vol 14 ◽  
pp. 1183-1190
Author(s):  
Marcel Golian ◽  
Lucia Hlavačková ◽  
Adriána Maťová ◽  
Ivana Mezeyová ◽  
Miroslav Šlosár ◽  
...  

In rational nutrition, vegetables play an important role due to their high biological and low energy value. The most widespread vegetables in our country belong to root vegetables. They are grown mainly for bulbs, corms, rhizomes, fleshy roots, and hypocotyl tubers. Root vegetables can be eaten raw or cooked. Carrot (Daucus carota L.) is a basic representative of root vegetables. For the most valuable components counts beta-carotene – the major component of total carotenoids. This paper evaluates changes in total carotenoids, refractometric dry matter, and gravimetric dry matter in three varieties of carrot (Kamaran F1, Komarno F1, Romosa) grown in soil and climatic conditions ex-situ in Nitra. We have evaluated roots grown in non-fertilized soil, soil after application of manure, horticultural compost, and their combinations. The results show that the variants fertilized with compost and a mixture of compost and manure had the most considerable influence on the synthesis and content of total carotenoids as well as the content of dry matter and refractometric dry matter


2020 ◽  
Vol 9 (12) ◽  
pp. e8191210964
Author(s):  
Laysa Borges Tomas de Sousa ◽  
Mariana Guadagnini Lisboa Soares ◽  
Adriana Paula da Silva Minguita ◽  
José Luiz Viana de Carvalho ◽  
Érica Aguiar Moraes ◽  
...  

Sweet potato is one of the seven major staple crops in the world. Although most cream-fleshed sweet potatoes are produced locally, orange-fleshed sweet potato (OFSP) is an excellent source of beta-carotene and can be promoted to alleviate vitamin A deficiency. The aim of this study was to evaluate the retention of total carotenoids (TC) and all-trans-beta-carotene (ATBC) after processing and storage of cookies with different proportions of OFSP and margarine. Cookies formulated with 18 to 22.23 g/100 g of OFSP and 28.57 to 34.6 g/100 g of margarine were analyzed by spectrophotometry and high-performance liquid chromatography. The formulation containing the highest content of OFSP (22.23 g/100 g) and 32.84 g/100 g of margarine showed greater retention of TC and ATBC after processing. Among the other samples with the same proportion of OFSP, the one containing the highest margarine concentration (34.6 g/100 g) has shown a greater capacity to maintain TC and ATBC during storage (up to 56 days), demonstrating lipids important role in the preservation of these components.


2015 ◽  
Vol 13 (1) ◽  
pp. 49-63
Author(s):  
Renata Maria Padovani ◽  
Jaime Amaya-Farfán

An assessment was made of the consumer accessibility by income to carotenoids in the eleven major Brazilian urban centers. The consumption data published by the POF (National Household Budget Survey, 1995-1996) and the Brazilian database on food carotenoids provided the basis for the study. The USDA-NCC Carotenoid Database for US foods was used whenever the carotenoid content was not found locally. Prudent individual daily intakes of beta-carotene (3 to 6mg), pro-vitamins A (5.2 to 6mg) and total carotenoids (9 to 18mg) were far from attained by the poorer households in all of the regions studied, but the availability rose as the level of income increased in all regions. The principal foods identified, which significantly contributed to the carotenoid supply were: (β-carotene) carrots, squash, mango and tomato, (lycopene) tomato, tomato sauce, watermelon and papaya, (lutein and zeaxanthin) corn flour, kale, lettuce and orange. The study suggests that consumption of carotenogenic foods in Brazil may have been low at the time, despite the wide natural distribution and abundance in the country. The implications that low consumption of carotenogenic foods may have on public health came to be better known in more recent years, but the data should be useful when comparing with the 2002/2003 POF.


2000 ◽  
Vol 70 (3) ◽  
pp. 126-138 ◽  
Author(s):  
Jacques Barnouin ◽  
Rafael Pérez Cristiá ◽  
Michelle Chassagne ◽  
Tomás Barrios Verdura ◽  
Josiane Arnaud ◽  
...  

A prospective survey was conducted in a random sample of smokers (SMO) and non-smokers (NON) men living in Havana. The aim of the survey was to investigate metabolic and dietary parameters discriminating between SMO and NON volunteers, which could explain underlying mechanisms to the higher risk of Epidemic Neuropathy (51000 reported cases in Cuba from late 1991) previously demonstrated in the Cuban smoker. Forty three blood markers were determined and dietary intakes evaluated during 4 seasonal periods. alpha-carotene, beta-carotene, beta-cryptoxanthin, total carotenoids and riboflavin blood concentrations were lower in SMO vs. NON subjects. Activities of glutathione reductase and butryrylcholinesterase were lower in the SMO group, as did total protein levels. Copper and thiocyanates were higher in SMO subjects. Most of the dietary parameters did not differ between the two groups of volunteers. Low biologically available quantities of carotenoids and riboflavin from low dietary intakes and depletion through smoking would be the main precipitating factors of Epidemic Neuropathy. Protein depletion and copper delivery via tobacco smoke, sunlight exposure, level of physical activity and high consumption of cigarettes, in a context of low dietary supplies concerning especially B vitamins, were probably aggravating factors through oxidative stress and impairment of cyanide detoxification.


Author(s):  
Violaine C Veen ◽  
Gonneke WJM Stevens ◽  
Theo AH Doreleijers ◽  
Maja Deković ◽  
Trees Pels ◽  
...  

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Yvonne Lucero ◽  
Calen McKenzie ◽  
Brigit O'Donnell ◽  
Lois Stanford ◽  
Ivette Guzman

Abstract Objectives Identify and measure beta-carotene, lutein, zeaxanthin and total carotenoids within traditional Southern New Mexican meals. Methods Three traditional New Mexican meals, red chile enchiladas, squash calabacitas, and red chile posole were chosen based on their inclusion of carotenoid containing vegetables. Seven community health educators, promotoras, were recruited from the La Semilla Food Center (Anthony, NM, USA) to prepare each meal, as commonly consumed with traditional Mexican practices and ingredients, on two separate cooking days. The red chile enchilada meal included Spanish rice, pinto beans and a side salad with tomatoes and orange bell peppers. Calabacitas were served with panela cheese and a corn tortilla and the posole, a red chile pork stew with hominy, was topped with cabbage and avocado. Once prepared, one plate (approximately 240 g) of each meal was blended and frozen in liquid nitrogen for carotenoid analysis. Carotenoid extractions were performed with 10 g samples in duplicate for each meal and analyzed against beta-carotene, lutein and zeaxanthin standards via high-performance liquid chromatography (HPLC). Carotenoid content for the entire portion of each meal was calculated and remaining samples of the meals were saved for future in vitro digestions to determine carotenoid micellar efficiencies. Results Beta-carotene and zeaxanthin were found in all three meals from both cooking days, whereas lutein was predominately found in calabacitas. The enchilada plate prepared on the second cooking day contained the highest total carotenoid amount with approximately 6.11 ug/g (1.47 mg/plate) and the highest beta-carotene and zeaxanthin amounts with 1.68 ug/g (403.2 ug/plate) and 0.55 ug/g (132 ug/plate), respectively. Lutein content in calabacitas was approximately 0.47 ug/g or 112.8 ug/plate. Conclusions Carotenoid content within each complex food matrix varied between cooking days indicating that minor differences in preparation practices and ingredients impact nutrient content. Future work including in vitro digestions of the meals will provide a basis for determining bioavailability of health-promoting carotenoids from traditional Southern New Mexican meals. Funding Sources New Mexico State University Vice President for Research Grant.


2015 ◽  
Vol 39 (4) ◽  
pp. 363-371
Author(s):  
Natália Alves Barbosa ◽  
Maria Cristina Dias Paes ◽  
Paulo Evaristo de Oliveira Guimarães ◽  
Joelma Pereira

Storing processed food products can cause alterations in their chemical compositions. Thus, the objective of this study was to evaluate carotenoid retention in the kernels of minimally processed normal and vitamin A precursor (proVA)-biofortified green corn ears that were packaged in polystyrene trays covered with commercial film or in multilayered polynylon packaging material and were stored. Throughout the storage period, the carotenoids were extracted from the corn kernels using organic solvents and were quantified using HPLC. A completely factorial design including three factors (cultivar, packaging and storage period) was applied for analysis. The green kernels of maize cultivars BRS1030 and BRS4104 exhibited similar carotenoid profiles, with zeaxanthin being the main carotenoid. Higher concentrations of the carotenoids lutein, β-cryptoxanthin, and β-carotene, the total carotenoids and the total vitamin A precursor carotenoids were detected in the green kernels of the biofortified BRS4104 maize. The packaging method did not affect carotenoid retention in the kernels of minimally processed green corn ears during the storage period.


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