TY - JOUR T1 - A Baseline Assessment Study of the Pigmentary Colours from Common Horticulture Plants Using UV-Visible Spectroscopy AU - , A.O. Adetuyi JO - Journal of Engineering and Applied Sciences VL - 2 IS - 4 SP - 750 EP - 752 PY - 2007 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2007.750.752 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2007.750.752 KW - Pigmentary colours KW -horticulture KW -flowers KW -indicator KW -UV-visible spectroscopy AB - Pigmentary colours from ten ornamental horticulture flowering plants commonly found in Akure metropolis, Ondo State, Nigeria, were steeped extracted in various solvents and analyzed using UV-visible spectroscopy. All the pigments extracted exhibited strong absorptions in the visible region of the range 400-580 nm. Bougainvillea and Allamanda flowers manifested various hues in acidic and basic media, showing that they could be used as indicators in a titration where a change in pH equivalent of the environment is required such as acid-alkali titration. ER -