Effects of Harvesting Date and Climate on the Flavonoid and Carotenoid Contents of Marigold (Calendula officinalis L.)

✍ Scribed by Roberta Piccaglia; M. Marotti; G. Chiavari; N. Gandini

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 137 KB
• Volume: 12
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/(sici)1099-1026(199703)12:2<85::aid-ffj616>3.0.co;2-l

✦ Synopsis

The ¯avonoid and carotenoid contents and agronomic parameters of an Italian type of marigold (Calendula ocinalis L.) were evaluated over a 2-year trial performing two annual cuts during the ¯owering period. The ¯avonoids and carotenoids of the marigold petals were characterized by HPLC with a photodiode array detector. The number of ¯ower heads per plant and the yield of heads and petals were always higher in the second cut, but the pigment content greatly diered in the 2 years. Glycosides of quercetin and isorhamnetin were the predominant components of the ¯avonoids, while b-carotene and lutein were the most abundant carotenoids. # 1997 by John