Differentiation between Lutein Monoester Regioisomers and Detection of Lutein Diesters from Marigold Flowers (<i>Tagetes erecta</i> L.) and Several Fruits by Liquid Chromatography−Mass Spectrometry

Breithaupt, Dietmar E.; Wirt, Ursula; Bamedi, Ameneh

doi:10.1021/jf010970l

Cited by 157 publications

(105 citation statements)

References 15 publications

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“…Polyunsaturated fatty acids were not found. These fatty acid compositions were similar to those of lutein esters in marigold fl owers, Tagetes erecta 19,20 .…”

Section: Characterization Of Astaxanthin and Adonirubinsupporting

confidence: 65%

Carotenoids and Their Fatty Acid Esters in the Petals of Adonis aestivalis

et al. 2011

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“…Polyunsaturated fatty acids were not found. These fatty acid compositions were similar to those of lutein esters in marigold fl owers, Tagetes erecta 19,20 .…”

Section: Characterization Of Astaxanthin and Adonirubinsupporting

confidence: 65%

Carotenoids and Their Fatty Acid Esters in the Petals of Adonis aestivalis

et al. 2011

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“…2A. C 30 stationary phase columns have been used to study the carotenoid esters composition of several matrices, such as pumpkins and apricots [13], plant extracts [35], marigold flowers [36] and other chinese herbs [37], krill [38], paprika [39] and mango [40] among others [41,42]. However, most of these works were aimed only to a class of carotenoid esters such as zeaxanthin esters [35].…”

Section: Analyses Of Intact Orange Juicesmentioning

confidence: 99%

Epoxycarotenoids esters analysis in intact orange juices using two‐dimensional comprehensive liquid chromatography

Dugo¹,

Giuffrida²,

Herrero³

et al. 2009

J of Separation Science

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In this work, the native carotenoid pattern of different orange juices was studied by LC x LC-DAD/APCI-IT-TOF-MS for the first time. Special attention was given to the epoxycarotenoids components. It has been already proposed that the relative proportions and composition of these epoxycarotenoids can be used to estimate the age and freshness of an orange juice. Re-arrangements from 5,6- to 5,8-epoxides can occur with time, partially due to the natural acidity of the juices. Thus, the study of these carotenoids in their intact form, that is, esterified with fatty acids, is of great interest. Besides, other free carotenoid and carotenoids esters were identified in seven different monovarietal orange juices and a commercial orange juice. Moreover, the higher separation power of the present LC x LC approach allowed a clearer identification of the compounds contained in the sample compared to the more commonly used approach which uses C(30) stationary phases in conventional LC, thanks to the attainment of clearer MS spectra due to the higher resolution and separation degree obtained in LC x LC. This method could also be used to establish authenticity markers among orange varieties that could be potentially used to prevent or detect adulterations or to establish ripeness indexes.

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“…The carotenoid profile in extracts from tissue samples was separated in a Dionex Ultimate 3000RS U-HPLC (Thermo Fisher Scientific), as described previously (36,37). Briefly, a C30 reversed-phase YMC analytical column, 250 × 4.6 mm (i.d.)…”

Section: Methodsmentioning

confidence: 99%

Tropical bat as mammalian model for skin carotenoid metabolism

Galván

Garrido‐Fernández

Ríos

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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Animals cannot synthesize carotenoid pigments de novo, and must consume them in their diet. Most mammals, including humans, are indiscriminate accumulators of carotenoids but inefficiently distribute them to some tissues and organs, such as skin. This limits the potential capacity of these organisms to benefit from the antioxidant and immunostimulatory functions that carotenoids fulfill. Indeed, to date, no mammal has been known to have evolved physiological mechanisms to incorporate and deposit carotenoids in the skin or hair, and mammals have therefore been assumed to rely entirely on other pigments such as melanins to color their integument. Here we use high-performance liquid chromatography (HPLC) in combination with time-of-flight mass spectrometry (HPLC-TOF/MS) to show that the frugivorous Honduran white bat Ectophylla alba colors its skin bright yellow with the deposition of the xanthophyll lutein. The Honduran white bat is thus a mammalian model that may help developing strategies to improve the assimilation of lutein in humans to avoid macular degeneration. This represents a change of paradigm in animal physiology showing that some mammals actually have the capacity to accumulate dietary carotenoids in the integument. In addition, we have also discovered that the majority of the lutein in the skin of Honduran white bats is present in esterified form with fatty acids, thereby permitting longer-lasting coloration and suggesting bright color traits may have an overlooked role in the visual communication of bats.

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Differentiation between Lutein Monoester Regioisomers and Detection of Lutein Diesters from Marigold Flowers (Tagetes erecta L.) and Several Fruits by Liquid Chromatography−Mass Spectrometry

Cited by 157 publications

References 15 publications

Carotenoids and Their Fatty Acid Esters in the Petals of Adonis aestivalis

Carotenoids and Their Fatty Acid Esters in the Petals of Adonis aestivalis

Epoxycarotenoids esters analysis in intact orange juices using two‐dimensional comprehensive liquid chromatography

Tropical bat as mammalian model for skin carotenoid metabolism

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