October 2019

Assessment of heavy metal pollution in marine sediments receiving produced water, Delta State, Nigeria

Every aspect of oil and gas operations poses significant negative impacts on the environment in varying levels, these environmental impacts have economic and public health consequences on the indigenes of the operation locality. Produced water discharge is one of such aspects of the upstream oil and gas operation whose potential for environmental degradation has necessitated both local and international regulations for...

Author(s): Moses Ngwoke, Ogbonnaya Igwe and Obinna Hyginus Ozioko  

October 2019

Comparative study of caffeine content in beans and leaves of Coffea arabica using UV/Vis spectrophotometer

Caffeine is one of the compounds found in coffee beans and other parts of coffee plant. However, the relative caffeine content in different coffee plant parts is least researched. Therefore, this study was designed to determine the content of caffeine in green coffee leaves and beans. In this work, we report content of caffeine in green coffee beans and leaves of Coffea arabica using UV/Vis spectrophotometer with...

Author(s): Adane Tadesse Dado, Yoseph Alresawum Asresahegn and Kusse Gudishe Goroya