Plectrantus Ambonicus Essay

CHAPTER 1

INTRODUCTION

1.1 Research Background
Plectrantus ambonicus is a medicinal native plant of India. Plectranthus amboinicus are belong to the family Lamiceae and synonyms to Plectranthus aromaticus Roxb., Coleus aromaticus Benth and Coleus amboinicus Lour. The Plectrantus amboinicus is well known around the world and carries different name for different country. For example Bangun-bangun (Malaysia), Karpuraballi (Tamil), Country borage (India, South africa,United states(US)), French thyme (South Africa, US), Indian borage (India), Indian mint (South Africa,US), Mexican mint (US). Most of the Plentranthus species are hard to distinguish due to the lack of clear-cut morphological criteria (Lukhoba et al. 2006). Plectranthus amboinicus

To determine the total flavonoid content in extract of objective number one.

1.4 Hypothesis
1.4.1 Null hypothesis
i. Spray dried 20% ethanol extract of Plectranthus amboinicus have antioxidant properties
1.4.2 Alternate hypothesis
i. Spray dried 20% ethanol extract of Plectranthus amboinicus does not have antioxidant properties

1.5 Scope of Study
This study focused on the whole plant of P.amboinicus extracted in srpay dried 20% ethanol. The study will be on the antioxidant activity total phenolic and flavonoind content of the whole plants. The extract will be tested using DPPH scavenging assay ,Folin-Ciocalteau assay and colorimetric method respectively.

1.6 Significance of Study
To the best of our knowledge, there is no optimal extraction protocol has been developed for a spray dried 20% ethanol extract of Plectranthus amboinicus (Lamiaceae) The choice of ethanol and water as extraction solvent in this work because they can scale down costs for the discovery and manufacturing process and it was proven that they are safer and less toxic as compared to other organic solvent and they are industry and can be utilized as a guideline for the conception of health supplements products.

CHAPTER 2

LITERATURE