Uncovering phytochemicals quantitative evolution in avocado fruit mesocarp during ripening: A targeted LC-MS metabolic exploration of Hass, Fuerte and Bacon varieties,Food Chemistry

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Uncovering phytochemicals quantitative evolution in avocado fruit mesocarp during ripening: A targeted LC-MS metabolic exploration of Hass, Fuerte and Bacon varieties
Food Chemistry ( IF 8.5 ) Pub Date : 2024-07-04 , DOI: 10.1016/j.foodchem.2024.140334
Irene Serrano-García ₁ , Carlos Saavedra Morillas ₁ , María Gemma Beiro-Valenzuela ₁ , Romina Monasterio ₂ , Elena Hurtado-Fernández ₃ , José Jorge González-Fernández ₄ , José Ignacio Hormaza ₄ , Romina Pedreschi ₅ , Lucía Olmo-García ₁ , Alegría Carrasco-Pancorbo ₁

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Avocado ripening entails intricate physicochemical transformations resulting in desirable characteristics for consumption; however, its impact on specific metabolites and its cultivar dependence remains largely unexplored. This study employed LC-MS to quantitatively monitor 30 avocado pulp metabolites, including phenolic compounds, amino acids, nucleosides, vitamins, phytohormones, and related compounds, from unripe to overripe stages, in three commercial varieties (, , and ). Multivariate statistical analysis revealed significant metabolic variations between cultivars, leading to the identification of potential varietal markers. Most monitored metabolites exhibited dynamic quantitative changes. Although phenolic compounds generally increased during ripening, exceptions such as epicatechin and chlorogenic acid were noted. Amino acids and derivatives displayed a highly cultivar-dependent evolution, with demonstrating the highest concentrations and most pronounced fluctuations. In contrast to penstemide, uridine and abscisic acid levels consistently increased during ripening. Several compounds characteristic of the variety were delineated but require further research for identification and role elucidation.

中文翻译：

揭示鳄梨果实中果皮成熟过程中植物化学物质的定量演化：对 Hass、Fuerte 和 Bacon 品种进行有针对性的 LC-MS 代谢探索

鳄梨的成熟需要复杂的物理化学转化，从而产生理想的食用特性；然而，它对特定代谢物的影响及其品种依赖性在很大程度上仍未得到探索。本研究采用 LC-MS 定量监测了三个商业品种（、、和）从未成熟到过熟阶段的 30 种鳄梨果肉代谢物，包括酚类化合物、氨基酸、核苷、维生素、植物激素和相关化合物。多变量统计分析揭示了品种之间显着的代谢差异，从而确定了潜在的品种标记。大多数监测的代谢物表现出动态的定量变化。尽管酚类化合物在成熟过程中通常会增加，但也注意到了表儿茶素和绿原酸等例外情况。氨基酸和衍生物表现出高度依赖品种的进化，表现出最高的浓度和最明显的波动。与喷司胺相反，尿苷和脱落酸水平在成熟过程中持续增加。该品种的几种化合物特征已被描述，但需要进一步研究来鉴定和作用阐明。

更新日期：2024-07-04

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