Laboratório Horta Comunitária Nutrir, Nutrition Department, Federal University of Rio Grande do Norte, Natal, Brazil.
Nutrition Postgraduate Program, Nutrition Department, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil.
PLoS One. 2022 Mar 9;17(3):e0264950. doi: 10.1371/journal.pone.0264950. eCollection 2022.
Ethnobotanical studies report that human populations from the Brazilian Caatinga biome use tree legumes (Fabaceae) with medicinal and food purposes. Our study provides a systematic review of the available published information concerning the antioxidant potential of Hymenaea courbaril L. (jatobá), Libidibia ferrea (Mart. Ex Tul.) L.P.Queiroz (jucá), and Dioclea grandiflora Mart. Ex Benth. (mucunã). Furthermore, in this paper, we infer the possible effects of local processing techniques applied to these plants on their antioxidant potential. In order to achieve these goals, we reviewed 52 articles, including studies from ethnobiology (n = 17), chemistry (n = 32), and food studies testing antioxidant activity (n = 17), excluding 14 repetitions. We found that these legume species can inhibit the formation of free radicals and this potential action varies among different parts of the plant. Probably, the presence of phenolic compounds such as phenolic acids and flavonoids, which are not uniformly distributed in the plants, explain their antioxidant activity. Local processing techniques (i.e., roasting, milling) affect the bioaccessibility of antioxidant components of tree legumes, inducing both positive and negative effects. However, studies about the antioxidant potential did not consider local processing techniques in their analyses. Our study highlights that culture is a fundamental driver of nutritional and pharmacological outcomes related to edible resources since it determines which parts of the plant people consume and how they prepare them. Hence, ignoring cultural variables in the analysis of antioxidant activity will produce inaccurate or wrong scientific conclusions.
民族植物学研究报告称，来自巴西卡廷加生物群落的人类群体使用具有药用和食用目的的树木豆科植物（豆科）。我们的研究对有关 Hymenaea courbaril L.（雅托巴）、Libidibia ferrea（Mart. Ex Tul.）L.P.Queiroz（胡卡）和 Dioclea grandiflora Mart. Ex Benth.（木豆）抗氧化潜力的现有已发表信息进行了系统评价。此外，在本文中，我们推断了应用于这些植物的当地加工技术对其抗氧化潜力的可能影响。为了实现这些目标，我们回顾了 52 篇文章，包括来自民族生物学（n = 17）、化学（n = 32）和测试抗氧化活性的食品研究（n = 17）的研究，排除了 14 次重复。我们发现这些豆科植物可以抑制自由基的形成，并且这种潜在的作用因植物的不同部位而异。可能是由于存在酚类化合物，如酚酸和类黄酮，它们在植物中分布不均匀，解释了它们的抗氧化活性。当地的加工技术（如烘烤、研磨）会影响树木豆科植物抗氧化成分的生物利用度，从而产生正反两方面的影响。然而，关于抗氧化潜力的研究在分析中并未考虑当地的加工技术。我们的研究强调，文化是与食用资源相关的营养和药理结果的基本驱动因素，因为它决定了人们食用植物的哪些部分以及如何准备它们。因此，在分析抗氧化活性时忽略文化变量会产生不准确或错误的科学结论。
