Improved liquid chromatographic method for determination of carotenoids in Taiwanese mango (Mangifera indica L.)

Metabolite profile of the tomato dwarf cultivar Micro‐Tom and comparative response to saline and nutritional stresses with regard to a commercial cultivar

“…For the identification of cis ‐isomers, spectral fine structure and peak cis intensity were considered (Table ). Peaks 8 and 12 were identified as 13‐ cis ‐ and 9‐ cis‐β ‐carotene, respectively, based on their elution order in a C 30 reversed‐phase column, a hypsochromic shift of 9 and 5 nm, and the Q ‐ratios similar to those reported in the literature . Peaks 20, 21, 22, 23 and 25 were tentatively identified as 13‐ cis ‐, 9‐ cis ‐, 9′‐ cis ‐, 5,5′‐di‐ cis ‐ and 5′‐ cis ‐lycopene, based on chromatographic data, a hypsochromic shift of 6, 6, 6, 0 and 0 nm, respectively, and the Q ‐ratios as referenced by Schierle et al , as well by Lin and Chen .…”

Effect of UV-C radiation on bioactive compounds of pineapple (Ananas comosusL. Merr.) by-products

“…Calibration curves were constructed daily using six working standard solutions with a mixture of the eight carotenoids and vitamins A and E prepared in the mobile phase. Table shows the extinction coefficients and wavelengths that were used to determine the standard stock solutions concentration.…”

“…One retinol equivalent is equivalent to 1 µg retinol or 6 µg β ‐carotene or 12 µg of other provitamin A carotenes. To calculate RAE, the conversion factors mentioned by Institute of Medicine, Food and Nutrition Board were used, where 1 RAE is equivalent to 1 µg retinol or 12 µg β ‐carotene or 24 µg of other provitamin A carotenes …”

Hen egg carotenoids (lutein and zeaxanthin) and nutritional impacts on human health: a review

“…Over all, in broader perspectives (egg and others), methodologies for the analysis of carotenoids including lutein and zeaxanthin in eggs (Brulc et al, 2013;Nimalaratne et al, 2013), grains (Abdel-Aal, Young, Rabalski, Hucl, & Fregeau-Reid, 2007, juices (Meléndez-Martínez, Vicario, & Heredia, 2007), vegetables and fruit (Chen, Tai, & Chen, 2004;Huck, Popp, Scherz, & Bonn, 2000), infant formulas (Yuhas et al, 2011), and biological materials and fluids (Khachik, Bernstein, & Garland, 1997) have extensively been reported and successfully applied. Important dietary sources of carotenoids, other than hen's egg, include fruits and vegetables like papayas mangoes, pumpkin carrots, spinach, corn, tomatoes, and others (Abdel-Aal et al, 2013).…”