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Morphological physicochemical and antioxidant profile of noncommercial banana cultivars

机译:非商业性香蕉品种的形态理化和抗氧化特性

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摘要

Banana cultivars––Luvhele (MusaABB), Mabonde (MusaAAA), and Muomva-red (Musa balbisiana) ––were characterized for morphological, physicochemical, and antioxidant properties. All three cultivars varied significantly (P < 0.05) in their morphology, pH, titratable acidity and total soluble solids with no significant difference in their ash content. Individual cultivars showed variations in flour starch granule when observed using a scanning electron microscope. Characterization of cultivars for total polyphenols (TPs) and antioxidant activity upon pretreatment with ascorbic, citric, and lactic acid shows that the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay of samples varied significantly as Muomva-red cultivar (1.02 ± 0.01 mg GA/g) expressed the highest DPPH activity at lactic acid concentration of 20 g/L. Total polyphenol content was also highest for Muomva-red [1091.76 ± 122.81 mg GAE/100 g (d.w.)]. The high amount of TPs present in these cultivars make them suitable source of bio-nutrients with great medicinal and health functions.
机译:香蕉品种-Luvhele(MusaABB),Mabonde(MusaAAA)和Muomva-red(Musa balbisiana)-具有形态,物理化学和抗氧化特性。这三个品种的形态,pH,可滴定的酸度和总可溶性固形物差异显着(P <0.05),其灰分含量无显着差异。当使用扫描电子显微镜观察时,单个品种显示出面粉淀粉颗粒的变化。表征抗坏血酸,柠檬酸和乳酸预处理的总多酚(TPs)和抗氧化活性表明,样品的1,1-二苯基-2-吡啶并肼基(DPPH)自由基清除测定随着Muomva-red品种的变化而显着变化( 1.02±0.01 mg GA / g)在乳酸浓度为20 g / L时表现出最高的DPPH活性。 Muomva-red的总多酚含量也最高[1091.76±122.81 mg GAE / 100 g(d.w.)]。这些品种中存在大量的TP,使其成为具有良好医学和健康功能的生物营养素的合适来源。

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