Lipophilic extracts of Viburnum opulus (VOP) and Hippophae rhamnoides (SBP) berry pomace recovered by supercritical CO2 (SFE-CO2) were analysed by UPLC-Q-TOF-MS and GC × GC-TOF for their triacylglycerol, tocopherol, phytosterol and fatty acid composition, while oxidative stability was evaluated by Oxipres and Rancimat methods. SFE-CO2 recovered 16.99% and 26.24% of lipids from SBP and VOP, respectively. Linoleic, linolenic, oleic, palmitic and palmitoleic acids were major in SBP oil, while VOP oil was composed of almost equal amounts of linoleic and oleic acids. Therefore, remarkably higher diversity of triacylglycerols was identified in SBP. The content of β-sitosterol and α-tocopherol was 359.5-514.5 and 65.38-118.6 mg/100 g, respectively. Hydrocarbons were other quantitatively important lipophilic components, including health beneficial squalene. All extracts improved oxidative stability of mayonnaise. The extracts of berry processing by-products by green extraction method contain valuable bioactive constituents and could be of high interest for applications in functional foods and nutraceuticals.

译文

通过uplc-q-tof-MS和GC × gc-tof分析了超临界CO2 (SFE-CO2) 回收的荚兰 (VOP) 和沙棘 (SBP) 浆果渣的亲脂性提取物的三酰甘油,生育酚,植物甾醇和脂肪酸组成,同时通过Oxipres和Rancimat方法评估氧化稳定性。SFE-CO2分别从SBP和VOP中回收了16.99% 和26.24% 的脂质。SBP油中主要是亚油酸,亚麻酸,油酸,棕榈酸和棕榈油酸,而VOP油由几乎等量的亚油酸和油酸组成。因此,在SBP中发现了更高的三酰基甘油多样性。Β-谷甾醇和 α-生育酚的含量分别为359.5-514.5和65.38-118.6 mg/100g。碳氢化合物是其他定量重要的亲脂性成分,包括对健康有益的角鲨烯。所有提取物均改善了蛋黄酱的氧化稳定性。通过绿色萃取法提取的浆果加工副产物的提取物含有有价值的生物活性成分,对于在功能性食品和营养食品中的应用可能具有很高的兴趣。

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