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Identification and Quantification of Carotenoids in Various Phenotypic Sorghum Accessions
Author(s) -
Shen Yanting,
Su Xiaoyu,
Chen Xi,
Rhodes Davina,
Katz Benjamin,
Tomich John,
Wang Weiqun
Publication year - 2016
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.30.1_supplement.689.4
Subject(s) - carotenoid , zeaxanthin , lutein , sorghum , endosperm , biology , phytoene synthase , crop , botany , carotene , food science , vitamin a deficiency , cultivar , horticulture , vitamin , agronomy , retinol , lycopene , biochemistry
Sorghum is a staple crop consumed in some regions of Africa and Asia, where vitamin A deficiency is prevalent. The objective of this study was to identify and quantify the carotenoids by LC‐MS in the diversity of phenotypic sorghum accessions. Totally, five carotenoids (α‐carotene, β‐carotene, lutein, zeaxanthin, and β‐crypoxanthin) were identified. Top three carotenoids (lutein, zeaxanthin and β‐carotene) accounted for more than half of the total carotenoids were quantitated. A high content of total carotenoids was detected in the sorghum accessions with yellow endosperm (PI533943, PI655996, PI656096, PI656010), but high β‐carotene content was found in the accessions with brown or yellow pericarp (PI656010, PI655996, PI656096). PI656010 possessed the highest content of both carotenoids and β‐carotene up to 43.7 and 18.6 ng/g dry weight, respectively. No carotenoids were detectable in the accessions with white/red pericarp or white endosperm (PI656112, PI297104). Developing an association of phenotypic diversity of sorghum varieties with carotenoid profile may contribute to a healthy benefit in vitamin A deficiency prevention. Support or Funding Information Supported by USDA Cooperative KS511‐1001903