Institute of Chemical Industry of Forest Products, CAF, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory on Forest ChemicalEngineering, SFA, Key Laboratory of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China.
Institute of Chemical Industry of Forest Products, CAF, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory on Forest ChemicalEngineering, SFA, Key Laboratory of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; Institute of Ecological Conservation and Restoration, CAF, Beijing 100091, China.
Food Res Int. 2022 Jul;157:111207. doi: 10.1016/j.foodres.2022.111207. Epub 2022 Apr 1.
The aim of this study was to evaluate the effects of geographic location (i.e., latitude, longitude, altitude) and soil fertility (i.e., nitrogen, phosphorus) on main phenolic compounds and fatty acids in VOO nearby the Bailong River in Longnan city, a representative planting-region in China. The geographical distribution analysis showed that the sampling-points from the middle reaches of Bailong River had higher secondary metabolites, such as oleacein and oleocanthal. Correlation analysis revealed that the contents of ligustroside, vanillic acid and rutin were negatively correlated with altitude while the contents of heptadecenoic acid, oleic acid and eicosenoic were positively related to the altitude. Moreover, the excessive available nitrogen had an adverse effect on the content of phenolic compounds and fatty acids in virgin olive oil. It was helpful for the accumulation of phenolic compounds and fatty acids in virgin olive oil when the level of available nitrogen ranged from 51 to 100 mg/kg. These findings are helpful for the geographic-location selection and fertilization management of olive orchard.
本研究旨在评估地理位置（即纬度、经度、海拔）和土壤肥力（即氮、磷）对中国陇南白龙江流域附近橄榄油中主要酚类化合物和脂肪酸的影响。地理分布分析表明，来自白龙江中游的采样点具有更高的次级代谢产物，如橄榄苦苷和酪醇。相关性分析表明，毛蕊花糖苷、香草酸和芦丁的含量与海拔呈负相关，而十七碳烯酸、油酸和二十碳烯酸的含量与海拔呈正相关。此外，过量的有效氮对橄榄油中酚类化合物和脂肪酸的含量有不利影响。当有效氮水平在 51 至 100mg/kg 之间时，有利于橄榄油中酚类化合物和脂肪酸的积累。这些发现有助于橄榄果园的地理位置选择和施肥管理。
