@article{MAKHILLJEAS20072412747, title = {A Baseline Assessment Study of the Pigmentary Colours from Common Horticulture Plants Using UV-Visible Spectroscopy}, journal = {Journal of Engineering and Applied Sciences}, volume = {2}, number = {4}, pages = {750-752}, year = {2007}, issn = {1816-949x}, doi = {jeasci.2007.750.752}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2007.750.752}, author = {A.O. Adetuyi}, keywords = {Pigmentary colours,horticulture,flowers,indicator,UV-visible spectroscopy}, abstract = {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.} }