After this period, the extracts were filtered (Whatman No. 1 filter paper) and absorbance at 535 nm (anthocyanins) and 374 nm (yellow flavonoids) were measured in a Shimadzu UV-1800 spectrophotometer (Columbia, MA).
After this period, the extracts were filtered (Whatman No. 1filter paper) and absorbance at 535 nm (anthocyanins) and374 nm (yellow flavonoids) were measured in a Shimadzu UV-1800 spectrophotometer (Columbia, MA).