A Study on Six Rose Cultivars in Terms of Minerals, Vitamins, and Antioxidant Compounds
محورهای موضوعی : مجله گیاهان زینتیFiroozeh Pourzarnegar 1 , Davood Hashemabadi 2 , Mohammad Sadegh Allahyari 3
1 - Department of Horticultural Science, Rasht Branch, Islamic Azad University, Rasht, Iran
2 - Department of Horticultural Science, Rasht Branch, Islamic Azad University, Rasht, Iran
3 - Department of Agricultural Management, Rasht Branch, Islamic Azad University, Rasht, Iran
کلید واژه: Human nutrition, Ornamental plant, Flavonoids, Vitamin A, Edible flower,
چکیده مقاله :
Rose, the queen of ornamental plants, is used as a new food source that is rich in nutrients and biologically active compounds in modern cuisine. Despite the popularity of rose flowers in cooking, many rose cultivars and species have not yet been subjected to research on their edibility. So, the present study aimed to determine the nutrients, minerals, and antioxidant compounds of six rose cultivars (‘Hella’, ‘Crimson Siluetta’, ‘Rainbows End’, ‘Dolce Vita’, ‘Samurai’, and ‘Avalanche’) in an experiment based on completely randomized design with three replications. The cultivars were procured at the full-blooming stage at an authentic producer in Tehran province and were transferred to the laboratory in proper packages. The petals were used to determine the nutritional and antioxidant properties. The results showed that ‘Crimson Siluetta’ was the richest in dry matter (22.75%), total phenols (20.20 mg GAE/100 g FW), antioxidant capacity (85.83% DPPH), P (33.48 mg/100 g FW), and Mn (2.76 mg/100 g FW). The best cultivars in vitamin C and anthocyanin were ‘Crimson Siluetta’ and ‘Samurai’, which did not differ significantly from one another. The richest cultivars in total flavonoids, carotenoids, N, and protein were ‘Rainbows End’ and ‘Dolce Vita’. Also, ‘Dolce Vita’ had the highest vitamin A (0.39 µg/100 g FW) and S content (356 mg/100 g FW). The highest fibre, Fe, Zn, Cu, Ca, Mg, Ni, and B were recorded by ‘Hella’, the best cultivar in K, along with ‘Samurai’. All six cultivars were good sources of minerals, nutrients, and antioxidant compounds. Among them, ‘Hella’ was richer in fibre and minerals, ‘Crimson Siluetta’ was richer in antioxidant compounds, and ‘Dolce Vita’ and ‘Rainbows End’ were more affluent in vitamin A and carotenoids, so they are recommended in human food regime as they are good for their health.
از گل رز که ملکه گل‌های زینتی است در آشپزی نوین به‌عنوان یک منبع غذایی جدید و غنی از ترکیبات مغذی و زیست‌فعال استفاده می‌شود. با وجود محبوبیت گل رز در آشپزی، هنوز ارقام و گونه‌های زیادی از این گل از نظر خوراکی بودن آزمایش نشده‌اند. از این‌رو مطالعه حاضر با هدف تعیین ترکیبات مغذی، معدنی و آنتی‌اکسیدانی 6 رقم گل رز (Hella, Crimson Siluetta, Rainbows End, Dolce Vita, Samurai, Avalanche) در قالب طرح کاملا تصادفی در سه تکرار اجرا شد. ارقام مورد نظر در مرحله گل کاملا باز از یک تولید کننده معتبر در استان تهران خریداری و در بسته‌بندی مناسب به آزمایشگاه منتقل شدند. از گلبرگ‌های ارقام ذکر شده جهت تعیین ویژگی‌های خوراکی و آنتی‌اکسیدانی استفاده شد. نتایج نشان داد که "Crimson Siluetta" از نظر درصد ماده خشک (22.75 %)، فنل کل ( 20.20 میلی گرم گالیک اسید در هر گرم وزن تر)، ظرفیت آنتی‌اکسیدانی (85.83 درصد بازدارندگی)، فسفر (33.48 میلی گرم در 100 گرم وزن تر) و منگنز (2.76 میلی گرم در 100 گرم وزن تر) غنی‌تر از سایر رقم‌هاست. بهترین ارقام از نظر ویتامین ث و آنتوسیانین "Crimson Siluetta" و "Samurai" بودند که از نظر آماری اختلاف معناداری با هم نداشتند. غنی‌ترین ارقام از نظر فلاونوئید کل، کاروتنوئید، نیتروژن و پروتئین به‌ترتیب "Rainbows End" و " Dolce Vita" بودند. "Dolce Vita" بیشترین مقدار ویتامین آ (0.38 میکروگرم در 100 گرم وزن تر) و گوگرد (356 میلی گرم در 100 گرم وزن تر) را داشت. بیشترین فیبر، آهن، روی، مس، کلسیم، منیزیم، نیکل و بر برای "Hella" ثبت شد که به‌همراه "Samurai" بهترین رقم‌ها از نظر پتاسیم بودند. بطورکلی هر 6 رقم رز مورد مطالعه منبع مناسبی از عناصر معدنی، ترکیبات مغذی و آنتی‌اکسیدانی هستند و در بین آن‌ها "Hella" از نظر فیبر و عناصر معدنی، "Crimson Siluetta" از نظر ترکیبات آنتی‌اکسیدانی و "Dolce Vita" و "Rainbows End" از نظر ویتامین آ و کاروتنوئیدها منابع غنی‌تری بودند و جهت استفاده در رژیم غذایی انسان و بهره‌مندی از مزایای سلامتی آن‌ها توصیه می‌شود.
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