当前位置: X-MOL 学术Appl. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Phenolic Profile Characterization of ‘Galega Vulgar’ and ‘Cobrançosa’ Portuguese Olive Cultivars along the Ripening Stages
Applied Sciences ( IF 2.5 ) Pub Date : 2020-06-05 , DOI: 10.3390/app10113930
Miguel D. Ferro , Elsa Lopes , Marta Afonso , Augusto Peixe , Francisco M. Rodrigues , Maria F. Duarte

The phenolic composition of olive fruits represents a vast and unique source of health beneficial molecules due to the presence of specific phenolic compounds (PCs), such as verbascoside (VERB), oleuropein (OLE) and its derivative molecules. Despite of being some of the most critical compounds regarding olive oil quality, these PCs are mostly abundant in olive fruits and leafs due to their hydrophilic nature. In olives, the phenolic profile suffers a deep and constant change along fruit ripening being the phenolic alcohols, such as hydroxytyrosol (HT), mainly formed by OLE, and/or OLE aglycone molecules degradation. The present work aims to study the maturation evolution of olive fruits from two major traditional Portuguese cultivars, ‘Galega Vulgar’ and ‘Cobrancosa’, in regard to their specific phenolic profile, as well as caliber (C), moisture (H), fat content in dry matter (OPDW) and maturity index (MI). Results show that both cultivars present distinct phenolic profiles along their ripening, with ‘Galega Vulgar’ reaching a high MI and OPDW at a much earlier ripening stage (S3), in agreement with the moment when a maximum OLE accumulation was registered. On the other hand, ‘Cobrancosa’ cultivar reached its higher MI and OPDW at S6 (harvest period), coinciding also with high OLE concentrations. MI may be used as a prediction tool for ’Galega Vulgar’ optimal harvesting time evaluation, associated with higher OLE and VERB concentrations, which will confer an additional protection towards diseases, that normally affect olive orchards.

中文翻译:

'Galega Vulgar' 和 'Cobrançosa' 葡萄牙橄榄品种在成熟阶段的酚类特征表征

由于存在特定的酚类化合物 (PC),例如毛蕊花苷 (VERB)、橄榄苦苷 (OLE) 及其衍生物分子,橄榄果实的酚类成分代表了大量独特的健康有益分子来源。尽管这些 PC 是关于橄榄油质量的一些最关键的化合物,但由于其亲水性,这些 PC 主要存在于橄榄果实和叶子中。在橄榄中,酚类成分随着果实成熟而发生深刻而持续的变化,主要是由 OLE 和/或 OLE 苷元分子降解形成的酚醇,例如羟基酪醇 (HT)。目前的工作旨在研究来自两个主要传统葡萄牙品种“Galega Vulgar”和“Cobrancosa”的橄榄果实的成熟演变,涉及它们特定的酚类成分以及口径 (C),水分 (H)、干物质中的脂肪含量 (OPDW) 和成熟指数 (MI)。结果表明,两个品种在成熟过程中都呈现出不同的酚类特征,“Galega Vulgar”在更早的成熟阶段 (S3) 达到高 MI 和 OPDW,与记录最大 OLE 积累的时刻一致。另一方面,'Cobrancosa' 品种在 S6(收获期)达到其较高的 MI 和 OPDW,也与高 OLE 浓度相吻合。MI 可用作“Galega Vulgar”最佳收获时间评估的预测工具,与较高的 OLE 和 VERB 浓度相关,这将为通常影响橄榄园的疾病提供额外的保护。结果表明,两个品种在成熟过程中都呈现出不同的酚类特征,“Galega Vulgar”在更早的成熟阶段(S3)达到高 MI 和 OPDW,这与记录最大 OLE 积累的时刻一致。另一方面,'Cobrancosa' 品种在 S6(收获期)达到其较高的 MI 和 OPDW,也与高 OLE 浓度相吻合。MI 可用作“Galega Vulgar”最佳收获时间评估的预测工具,与较高的 OLE 和 VERB 浓度相关,这将为通常影响橄榄园的疾病提供额外的保护。结果表明,两个品种在成熟过程中都呈现出不同的酚类特征,“Galega Vulgar”在更早的成熟阶段 (S3) 达到高 MI 和 OPDW,与记录最大 OLE 积累的时刻一致。另一方面,'Cobrancosa' 品种在 S6(收获期)达到其较高的 MI 和 OPDW,也与高 OLE 浓度相吻合。MI 可用作“Galega Vulgar”最佳收获时间评估的预测工具,与较高的 OLE 和 VERB 浓度相关,这将为通常影响橄榄园的疾病提供额外的保护。'Cobrancosa' 品种在 S6(收获期)达到其较高的 MI 和 OPDW,同时也与高 OLE 浓度一致。MI 可用作“Galega Vulgar”最佳收获时间评估的预测工具,与较高的 OLE 和 VERB 浓度相关,这将为通常影响橄榄园的疾病提供额外的保护。'Cobrancosa' 品种在 S6(收获期)达到其较高的 MI 和 OPDW,同时也与高 OLE 浓度一致。MI 可用作“Galega Vulgar”最佳收获时间评估的预测工具,与较高的 OLE 和 VERB 浓度相关,这将为通常影响橄榄园的疾病提供额外的保护。
更新日期:2020-06-05
down
wechat
bug