Habanero chili pepper has great economic importance in Mexico, but its production is limited due to different factors that affect quality. Given the high demand and prices of fruit, this crop spreading other regions search new systems. The aim research work was assess yield antioxidant components fruit by supplementing potassium from organic sources. “Campeche”, “Palenque”, “Jaguar” varieties w...

The potential health benefits of carotenoids as anti cancer and antioxidant agents have recently been demonstrated. Oil palm, Elaeis oleifera in particular, is known to be the richest natural source for carotene. However, the species has not been commercially exploited due to its extremely low oil yield. The current work describes the isolation of a cDNA clone coding for phytoene synthase (psy)...

This report presents dietary intake estimates for selected B-vitamins, carotenes, and vitamins A, C, and E from the National Health and Nutrition Examination Survey, 1999-2000, for the U.S. population. Vitamin intakes are estimated from one 24-hour dietary recall interview. Population means, medians, and standard errors of the mean are weighted to produce national estimates, and are presented b...

The Arabidopsis carotenoid cleavage dioxygenase 4 (AtCCD4) is a negative regulator of the carotenoid content of seeds and has recently been suggested as a candidate for the generation of retrograde signals that are thought to derive from the cleavage of poly-cis-configured carotene desaturation intermediates. In this work, we investigated the activity of AtCCD4 in vitro and used dynamic modelin...

Two F2carrot (Daucus carota L.) populations (orange rooted Brasilia x very dark orange rooted High CaroteneMass HCM cross and the dark orange rooted cultivated variety B493 x white rooted wild carrot Queen Anne’s Lace QAL cross) with very unrelated genetic backgrounds were used to investigate intrinsic factors limiting carotenoid accumulation in carrots by applying phenotypic correlation and pa...

1. beta-Ionone vapour has been shown to cause an increase in the more saturated carotenes and a decrease in the less saturated carotenes of Rhodotorula glutinis. Lycopersene (dihydrophytoene) has been proposed as a precursor to phytoene. Attempts were made to isolate lycopersene from beta-ionone-treated cultures of R. glutinis. 2. Large samples of beta-ionone-treated cultures were examined for ...