Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 64, Issue 43, Pages 8207-8224Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.6b03226
Keywords
carotenoid esters; Citrus sinensis L. Osbeck; Citrus reticulata L. Blanco X Citrus sinensis L. Osbeck; HPLC-DAD-(APCI)MSn; identification; Mangifera indica L.; xanthophylls; mango; orange; mandarin; LC-MS
Funding
- Sao Paulo Research Foundation (FAPESP) [2013/07914-8, 2013/08904-5]
- National Counsel of Technological and Scientific Development (CNPq) [308484/2014-2]
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Interest in the composition of carotenoid esters of fruits is growing because esterification may affect their bioavailability. Thus, the aim was to provide a detailed identification of carotenoid esters in citrus and mango. Orange cv. 'Valencia' and cv. 'Pera' presented 9 free carotenoids, 38 monoesters, and 60 diesters. Violaxanthin and luteoxanthin derivatives were the major ones, followed by antheraxanthin, lutein, zeaxanthin, beta-cryptoxanthin, and zeinoxanthin esters, many of them reported for the first time in orange pulp. The carotenoid ester composition of tangor cv. 'Murcott', reported for the first time, showed 8 free carotenoids, 34 monoesters, and 33 diesters, with beta-cryptoxanthin esters as major compounds, followed by violaxanthin and zeaxanthin esters. In citrus, carotenoids were acylated mainly with capric, lauric, myristic, myristoleic, palmitic, palmitoleic, and oleic acids. In mango, 5 free carotenoids, 2 monoesters, and 19 diesters were identified, from which many violaxanthin and neoxanthin esters were reported for the first time.
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