Preliminary In-vitro Assessment of Some Phytochemical Constituents and Radical Scavenging Activity of Methanol Extracts of Five Flowers Varieties
Journal Title: Annual Research & Review in Biology - Year 2015, Vol 5, Issue 4
Abstract
This work evaluated some phytochemical constituents and radical scavenging activity of the flower samples of Allamanda carthica, Delonix regia, Hibiscus rosasinensis, Plumeria rubra and Tercoma stans. Methanol extracts of different flower samples were used for the phytochemical analysis. The result obtained showed that Tercoma stans has the highest yield (14.45%) followed by Hibiscus rosasinensis (12.36%), Delonix regia (11.36%), Allamanda Cathartica (10.11%) and Plumeria rubra (8.99%) while the preliminary qualitative phytochemical screening showed that alkaloid was absent in all the extracts. The methanol extracts of the five flower samples indicated the presence of flavonoids and saponins in significant quantities. With the exception of Allamanda Cathartica and Delonix regia all other extracts dictates the presence of protein. Glycosides were not detected in Allamanda carthica and Tercoma stans, but were found in other samples. Tannins were detected in small quantities in the five flower samples. Methanol extract of Allamanda Cathartica, Delonix regia, Hibiscus rosasinensis, Plumeria rubra and Tercoma stans were prepared for the assessment of the antioxidant scavenging properties using the DPPH model and ascorbic acid as standard. The result obtained from the antioxidant activity was used to plot a graph of absorbance against time. The ascorbic acid standard showed the highest activity at 0.8 mg/dl. The methanol extracts of the flower samples showed varying degree of antioxidant activity in the decreasing order, as follows: Plumeria rubra>Tercoma stans>Allamanda Cathartica>Hibiscus rosasinensis>Delonix regia. The result suggests that the phytochemical and antioxidant properties of the flowers could be used for medicinal purposes since some insects and birds depend on the nectar produced from these flowers for survival.
Authors and Affiliations
Ogugua N. Victor, Anaduaka G. Emeka, Agba J. Chukwuka, Apeh O. Victor, Egba I. Simeon, Agu C. Victor, Ogbu N. Patience
Keywords
Related Articles
- EP ID EP353565
- DOI 10.9734/ARRB/2015/11188
- Views 66
- Downloads 0
Genetic Diversity Analysis of Soursop (Annona muricata L.) in West Java Region of Indonesia Using RAPD Markers
Aims: The aim of this study was determine the genetic diversity of Annona muricata L. using molecular random amplified polymorphic DNA (RAPD) markers. Amplification of genomic DNA of 9 samples using RAPD analysis yielded...
Parameters of Facial, Nasal, Maxillary, Mandibular and Oro-facial Heights of Adult Urhobos of Nigeria
The study was carried out to determine the mean values of facial, nasal, maxillary, mandibular and oro-facial heights of adult Urhobos: one of the ethnic groups in Nigeria and comparism with some other ethnic groups in N...
Effects of Energy Drink on Sperm Morphology, Haematological Parametres and Behaviour of Adult Male Mice
With the rising popularity of energy drink among Nigerian youths and males especially, there is the need to investigate the possible side effect of its major constituent, caffeine on reproductive and health related issue...
The Photographic Checklist of the Orthocladiinae of the Niger Delta, Nigeria
Aims: Compilation of the photographic checklist of the Chironomids under the subfamily Orthocladiinae from the Niger Delta of Nigeria. The compilation used records of specimens collected over a period of thirty years fro...
A Review on Experimental Methods of Diabetic Research: Advantages and Limitations
Globally diabetes mellitus has become a medical problem with an increase in prevalence, morbidity and mortality. To date, it has no cure yet, however, medical care, healthy life style and exercise programme are provided...