Characterization of bioactive compounds, antioxidants and antimicrobial properties of Allagoptera leucocalyx

Food chemistry advances Pub Date : 2024-07-13 DOI:10.1016/j.focha.2024.100775

Ayelen J. Camacho Crespo , Natalia Montellano Duran

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Abstract

Allagoptera leucocalyx is a non-studied tropical fruit distributed in the Bolivian Chiquitania region. This study aimed to investigate its bioactive compounds as well as its antioxidant and antimicrobial properties to encourage its consumption and explore potential applications in various industries. The bioactive compounds: polyphenols, flavonoids, and anthocyanins were determined by the Folin-Ciocalteu, AlCl₃, and differential pH methods. Antioxidant activity was assessed by the DPPH^● and ABTS^● assays, while antimicrobial activity by turbidimetry and antibiogram. The highest results obtained revealed significant levels of polyphenols (209 ± 12 mg GAE/100 g), and flavonoids (7.9 ± 0.1 mg QE/100 g). Moreover, the fruit exhibit antioxidant activity (9.3 ± 0.2 μmol Trolox/g by ABTS^● and 5.9 ± 0.2 μmol Trolox/g by DPPH^●) and antimicrobial activity against Shigella sp. In conclusion, these promising findings suggest that this fruit could be utilized in the development of new products within the cosmetic, food, and pharmaceutical industries.

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Allagoptera leucocalyx 的生物活性化合物、抗氧化剂和抗菌特性的表征

Allagoptera leucocalyx 是一种未经研究的热带水果，分布在玻利维亚奇基塔尼亚地区。本研究旨在调查其生物活性化合物及其抗氧化和抗菌特性，以鼓励食用并探索其在各行业的潜在应用。生物活性化合物：多酚、类黄酮和花青素采用 Folin-Ciocalteu、AlCl3 和 pH 差值法进行测定。抗氧化活性通过 DPPH● 和 ABTS● 法进行评估，抗菌活性通过浊度法和抗生素图谱法进行评估。结果显示，多酚（209 ± 12 毫克 GAE/100 克）和类黄酮（7.9 ± 0.1 毫克 QE/100 克）的含量最高。此外，这种水果还具有抗氧化活性（ABTS●法为 9.3 ± 0.2 μmol Trolox/g，DPPH●法为 5.9 ± 0.2 μmol Trolox/g）和对志贺氏菌的抗菌活性。

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