Fruit Seeds of the Rosaceae Family: A Waste, New Life, or a Danger to Human Health?
2017
Senica, Mateja | Štampar, Franci | Veberic, Robert | Mikulic-Petkovsek, Maja
In fruit production seeds are mostly regarded as waste, but for plants they represent a beginning of new life. Seeds accumulate toxic or health-beneficial compounds, and the elucidation of their metabolic profile is especially important to people who consume the entire fruit, including the seeds. The present research quantifies the levels of bioactive compounds (phenolics and cyanogenic glycosides (CGG)) in fruit seeds of 35 cultivars belonging to 6 different fruit species. High-performance liquid chromatography and mass spectrophotometry were used to detect and identify the studied compounds. Significant differences in the content of individual bioactive compounds as well as their groups were recorded (p < 0.05). For the first time neoamygdalin and prunasin were detected in a number of fruit cultivars. All fruit seeds, except pears, accumulated from 2- to 46-fold higher levels of CGG than phenolics. On average, seeds contained from 75.46 to 1648.14 μg/g phenolics and from 46.39 to 4374.31 μg/g CGG. The study also clarifies the new lethal dose for cyanogenic glycosides.
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