project topics and materials
Rated 5/5 based on 7,652 reviews
project topics ,Nigeria project materials ,free project topics, Download project topics,research topics, project writing, administration in education, project on education, Project Materials, computer science project topics, final year project topics, educational materials, engineering projects, Research Materials, computer project topics, research project topics, projects on education, electrical engineering projects,accounting projects, science project topics, electrical projects, electrical engineering project, mechanical engineering projects, economics topics, accounting project topics, project on economics, mechanical projects, education research topics, project topics in education, research topics on education, research topics in education, project topics on management, research project on education, education sites, about business administration, biology project topics, mass communication project, projects for engineering students, project topics for management, chemistry project topics, list of research topics, education research paper topics, educational site, management project topics, Economics project topics, electronics project topics, electronics engineering projects, project topics in accounting, research topic ideas, banking project topics, project topics on finance, electronics projects topics, public administration project topics, project topics on marketing, Easy Project Topics, project on business administration, marketing project topics, finance project topics, computer science project topic, electrical project topics, educational administration and management, projects on economics, project topic on finance, project topics on banking, interesting research topics, Business administration project topics, Project Topics and Material, project topics in economics, mass communication project topics, project topics in communication, topics in economics, business administration project, electronic project topics, electronic engineering projects, educational research topics, research topics on economics, gross archive, mba project topics, marketing project topic, economic topics, project topic on marketing, educational management project, topics on business administration, business administration management, business administration pdf, project topics in marketing, projectng.com, project topics in management, research topics in economics, economic research topics, electrical and electronics projects, research projects in education, topics on banking and finance, business, administration and management, business research topics, project topics for marketing, business management research topics, economics research topics, electrical project topic, economic topics for research, economic research topic, project topic in marketing, final year it projects topics, project topics in finance, gross project, research topic in education, research topic in economics, electronics projects for engineering students, what is business administration and management, all about business administration, research topics in business management, electrical projects for engineering students, research topics about education, project topics for it final year">
Enugu, Nigeria
Nigeria
Enugu State
Nigeria
09080008483
info@projectng.com
09080008483
info@projectng.com

Science Lab Technology Project Topics and Research Materials

EXAMINE  THE PRESENCE AND CONCENTRATION OF SOME PHYTOCHEMICALS IN AVOCADO PEAR PERSEA AMERICANA MILL SEED

 

ABSTRACT

Phytochemical screening to determine the presence of tannins, saponins, alkaloids, flavonoids,sterols and cardiac glycosides in PerseaAmericana will be carried out. The sample will be prepared by cutting the seed into small pieces, drying and grinding with Thomas Willey milling machine. The ground sample will be stored in an airtight container for analysis. The presence of alkaloid will be determined by Wagner’s test, flavonoid and tannin by ferric chloride test, saponin by emulsion test and cardiac glycoside by glacial acetic acid test. The quantitative determination of alkaloid was carried out by the method of Harborne,(1993)and Obadoni and Ochuko,(2001). Flavonoid will be determined by the method of Boham and Kocipai,(1994). Tannin will be determined by the method of Pearson, while cordial glycoside will be determined by wang and filled method.

 

 

 

 

 

 

 

 

 

 

 

 

CHAPTER ONE

INTRODUCTION

Phytochemicals are a large group of plant derived compound hypothesized to be responsible for much of the disease protection conferred from diets high in fruits, vegetables, beans, cereals and plant-based beverages such as tea and wine (Hollman, 2005). They are biologically naturally occurring chemical compounds found in plants . They protect plants from disease and damage and contribute to the plants colour, aroma and flavor. They also protect plants from environmental hazards such as pollution, stress, drought, uv exposure and pathogenic attack. These Phytochemicals are known as secondary metabolities .

Recently it is clearly known that phytochemicals have roles in the protection of human health when their dietary intake is significant.

A wide range of dietary Phytochemicals are found in fruits, vegetables, legumes, whole grains, nuts, seeds, fungi, herbs and spices (Mathai, 2000). it is well known that plants produce these chemicals to protect                                                                                                                                                                                                                                                                                                            themselves, but recent research demonstrate that many phytochemicals can also protect humans against diseases (Narasinga, 2003). The most important of these bioactive constituents of plants are alkaloids, tannins, steroids, terpenoids and phenolic compounds. In recent years secondary plant metabolites previously with unknown pharmacological activities have been extensively investigated as a source of medicinal agents. Thus it is anticipated that phyto-antimicrobial efficacy will be used for the treatment of bacterial infection (Balandrin et al., 2005).

Perseaamericana is one of the 150 varieties of avocado pear. The seeds of Perseaamericana has a diverse application in ethnomedicine, ranging from treatment for diarrhea, dysentery, toothache, intestinal parasites to the area of skin treatment and beautification (Pamplona and Roger, 1999). P. americana leaves have been reported to posses anti-inflammatory and analgesic activities (Adeyemi et al., 2002). The seeds are rich in tannins and carotenoids and tocopherols from the fruit were shown to inhibit the in-vitro growth of prostate cancer cell lines (lu et al, 2005) and “persin” from avocado leaves was shown to have antifungal properties and to be toxic to silkworms (oelrichs et al., 1995). The effect of P.americana extract was evaluated on in-vitro rat lymphocyte proliferation (Gomezflores et al., 2008). Antioxidant activity and phenolic content of seeds of avocado pear was found to be greater than 70% (Soong and Barlow 2004).

Objective of the study

1)    To screenPerseaamericana seeds for the presence of some phytochemicals such as flavonoids, alkaloids, sterols, tannins, saponins, cardiac glycosides etc.

2)    To carry out quantitative determination of some of these phytochemicals

Share On Social

project topics and research materials