Akbar Karami
In this study, flowers of Persian musk rose (Rosa moschata Hermm.) were harvested on May 11, May 21, June 1 and September 10 to evaluate the effect of harvest date on total phenols, ascorbic acid (AA), carotenoids, and mineral elements in the petals. The highest Total phenol and vitamin C content were observed in June 1 (25.67 mg GAE/100 ml and 54.5 mg/100 ml). Mineral compositions of petals were shown significantly different in harvest times, e.g., P, K was highest in June 1, Mg in May 21, Ca, Fe and Mn in September harvest time. Carotenoid content was decreased from the first to the third harvest and varied between 0.1951 and 0.1373 mg g-1 but was not significantly different in harvest dates.
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