人们对与食用植物性食品相关的健康益处的认识的普及正在推动创新蔬菜产品的市场,包括微绿,被认为是生物活性化合物的有希望的来源。为了评估含油植物微绿作为生物活性脂肪酸来源的潜力,气相色谱-质谱法用于表征五种微绿的总脂肪酸含量,即,chia,亚麻,大豆,向日葵,和油菜籽(油菜)。Chia和亚麻微绿似乎是α-亚麻酸(ALA)的有趣来源,总浓度为2.6和2.9克/100克干重(DW),分别。根据这些金额,欧洲食品安全局建议的ALA每日摄入量的约15%可以由100克相应的新鲜产品提供。高分辨率傅里叶变换单质谱和串联质谱的流动注射分析使所检查的微绿作物中的三酰基甘油(TG)和甾醇酯(SE)的半定量分析成为可能,确认它们作为脂肪酸如ALA和亚油酸(LA)的额外来源的作用,以及甘油磷脂。在油菜籽和向日葵微绿中观察到最高的TG和SE(约50和4-5μmol/g的DW,分别),其次是亚麻(约20和3μmol/gDW)。TG54:9,54:8和54:7在亚麻和chia的情况下盛行,而TG54:3、54:4和54:5是油菜籽中最丰富的TG。β-谷甾醇亚油酸酯和亚麻酸酯在SE谱中普遍流行,虽然菜油酯油酸酯,亚油酸酯,和亚麻酸在菜籽微绿的情况下表现出相当的量。
The spreading awareness of the health benefits associated with the consumption of plant-based foods is fueling the market of innovative vegetable products, including microgreens, recognized as a promising source of bioactive compounds. To evaluate the potential of oleaginous plant microgreens as a source of bioactive fatty acids, gas chromatography-mass spectrometry was exploited to characterize the total fatty acid content of five microgreens, namely, chia, flax, soy, sunflower, and rapeseed (canola). Chia and flax microgreens appeared as interesting sources of α-linolenic acid (ALA), with total concentrations of 2.6 and 2.9 g/100 g of dried weight (DW), respectively. Based on these amounts, approximately 15% of the ALA daily intake recommended by the European Food Safety Authority can be provided by 100 g of the corresponding fresh products. Flow injection analysis with high-resolution Fourier transform single and tandem mass spectrometry enabled a semi-quantitative profiling of triacylglycerols (TGs) and sterol esters (SEs) in the examined microgreen crops, confirming their role as additional sources of fatty acids like ALA and linoleic acid (LA), along with glycerophospholipids. The highest amounts of TGs and SEs were observed in rapeseed and sunflower microgreens (ca. 50 and 4-5 μmol/g of DW, respectively), followed by flax (ca. 20 and 3 μmol/g DW). TG 54:9, 54:8, and 54:7 prevailed in the case of flax and chia, whereas TG 54:3, 54:4, and 54:5 were the most abundant TGs in the case of rapeseed. β-Sitosteryl linoleate and linolenate were generally prevailing in the SE profiles, although campesteryl oleate, linoleate, and linolenate exhibited a comparable amount in the case of rapeseed microgreens.