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Provitamin A potential of landrace orange maize variety ( Zea mays L.) grown in different geographical locations of central Malawi
- Source :
- Food Chemistry. 196:1315-1324
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- The provitamin A potential of landrace orange maize from different locations (A, B, C and D) of central Malawi has been evaluated. Physicochemical compositions, color, total carotenoid content (TCC), carotenoid profiles, and oxygen radical absorbance capacity (ORAC) and 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging activity as antioxidant capacities of maize were determined. Color values of orange maize had correlations with β-cryptoxanthin (r>0.36). TCC of white and orange maize averaged 2.12 and 59.5 mg/kg, respectively. Lutein was the most abundant carotenoid (47.8%) in orange maize, followed by zeaxanthin (24.2%), β-carotene (16.4%) and β-cryptoxanthin (11.6%). Location D showed the highest levels of lutein, zeaxanthin and antioxidant capacity. Provitamin A content of orange maize met the target level (15 μg/g) of biofortification. Retinol activity equivalent (RAE) from β-cryptoxanthin and β-carotene in orange maize averaged 81.73 μg/100g. In conclusion, orange maize has the potential to be a natural source of provitamin A.
- Subjects :
- chemistry.chemical_classification
Malawi
Lutein
Oxygen radical absorbance capacity
Chemistry
Provitamin
Biofortification
food and beverages
04 agricultural and veterinary sciences
General Medicine
Orange (colour)
Carotenoids
Zea mays
040401 food science
Analytical Chemistry
Zeaxanthin
Retinol Activity Equivalent
chemistry.chemical_compound
Horticulture
0404 agricultural biotechnology
Zeaxanthins
Botany
Carotenoid
Solanum tuberosum
Food Science
Subjects
Details
- ISSN :
- 03088146
- Volume :
- 196
- Database :
- OpenAIRE
- Journal :
- Food Chemistry
- Accession number :
- edsair.doi.dedup.....d4f8f373ecc3aff3ee6eaa7824b3f3fc