Amah Delphine, Alamu Emmanuel, Adesokan Michael, van Biljon Angeline, Maziya-Dixon Bussie, Swennen Rony, Labuschagne Maryke
Department of Plant Sciences (Plant Breeding), University of the Free State, Bloemfontein, South Africa.
International Institute of Tropical Agriculture, PMB 5320, Ibadan, Nigeria.
Food Chem X. 2019 Apr 8;2:100024. doi: 10.1016/j.fochx.2019.100024. eCollection 2019 Jun 30.
Bananas are important staples in tropical and sub-tropical regions and their potential as a source of provitamin A has recently attracted attention for biofortification. A collection of 189 banana genotypes (AAB-plantains, cultivars and bred hybrids) was screened to determine variability in fruit pulp provitamin A carotenoid (pVAC) content using high performance liquid chromatography. Total carotenoid content in tested genotypes varied from 1.45 µg/g for hybrid 25447-S7 R2P8 to 36.21 µg/g for cultivar ITC.0601 Hung Tu with a mean of 8.00 µg/g fresh weight. Predominant carotenoids identified were α-carotene (38.67%), -β-carotene (22.08%), lutein (22.08%), 13--β-carotene (14.45%) and 9--β-carotene (2.92%), indicating that about 78% of the carotenoids in bananas are pVAC. High pVAC genotypes were identified for integration into biofortification strategies to combat vitamin A deficiency in developing countries.
香蕉是热带和亚热带地区的重要主食，其作为维生素A原来源的潜力最近因生物强化而受到关注。利用高效液相色谱法对189种香蕉基因型（AAB大蕉、品种和杂交培育品种）进行筛选，以确定果肉中维生素A原类胡萝卜素（pVAC）含量的变异性。测试基因型中的总类胡萝卜素含量从杂交品种25447-S7 R2P8的1.45μg/g到品种ITC.0601红图的36.21μg/g不等，平均鲜重为8.00μg/g。鉴定出的主要类胡萝卜素为α-胡萝卜素（38.67%）、β-胡萝卜素（22.08%）、叶黄素（22.08%）、13-β-胡萝卜素（14.45%）和9-β-胡萝卜素（2.92%），这表明香蕉中约78%的类胡萝卜素是pVAC。已鉴定出高pVAC基因型，以便将其纳入生物强化策略，以应对发展中国家的维生素A缺乏问题。
