We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

Emulsion Technology Health Science and Medicine Essay - Lab Report Example

Comments (0)
EMULSION TECHNOLOGY by Name of of Class Name of Professor Name of University Name of City Date PART I + PART II ABSTRACT This lab report explores the idea of designing a formulation of a stabilized emulsion and identifying the best preservative for the preservation of an emulsion…
Download full paper

Extract of sample
Emulsion Technology Health Science and Medicine Essay

Download file to see previous pages... Furthermore the report also covers the spectrophotometric analysis to determine the preservative actions of benzoic acid, methyl parabens and propyl parabens and also the supportive action of propylene glycol as a preservative. Finally better methods are suggested to negate and minimize the random and systemic errors during the experiment in order to achieve the best possible stabilized emulsion. Keywords: Hydrophile-lipophile Balance, Span 80, Tween 80, Spectrophotometric analysis, propylene glycol PART - I INTRODUCTION An emulsion is a setup of two immiscible liquid phases with one of them dispersed throughout the other in form of tiny and fine droplets. The phase consisting of tiny droplets is defined as the internal or disperse phase whereas the suspension phase is classified as the external or continuous phase. Water and oil are the two major constituents of pharmaceutical emulsions. An aqueous continuous phase will render the emulsion as oil-in-water (o/w) whereas an oily continuous phase will make a water-in-oil (w/o) emulsion. The stability of an emulsion is dependent on the characteristics of the interfacial film. Addition of an emulsifying agent lowers the interfacial tension and increases the stability of the emulsion. A wide variety of these substances are available: e.g. egg yolk, cetearyl alcohol, polysorbate 20, ceteareth 20 etc. In the past emulsions have been used to impart paraffin oil and other oily substances in a more palatable form (Aulton 1988, p. 93). Nowadays emulsions are very common in foods, cosmetics, personal hygiene and especially pharmaceuticals. Creams, ointments, liniments, pastes and films are some examples of pharmaceutical emulsions. They are classified according to the oil and water content in each of the preparation and also on their routes of administration (Troy, Remington & Beringer 2006, p. 886-887). To achieve the production of a stabilized emulsion this experimented was conducted in order to formulate a scientific method of emulsion design. MATERIALS & METHOD A condensed film consisting of an oil soluble component (OSC) and a water soluble component (WSC) in a ratio of 9:1 for the required o/w emulsion is needed at the interface between oil and water in order to achieve the best result. The Hydrophile – liphophile balance method (HLB) was designed in order to calculate the perfect HLB requirement of the oil. According to the method, a HLB number is allotted to each and every surfactant depending upon the extent of hydrophilicity and lipophilicity of the molecule. A surfactant expressing only hydrophilic properties is given the maximum number of 20, with sodium lauryl sulphate being the only exception having a HLB number of 40. MATERIALS Liquid Paraffin, Tween 80 (polyoxyethylene 20 sorbitan mono-oleate, Span 80 (sorbitan mono-oleate) Span 80 is selected as the OSC while Tween 80 is selected as the WSC at total blend concentration of 2% w/v. Both compartments are then administered into screw capped sample vials via a burette and then labeled. The vials are agitated by inversion and then emulsified by drawing into and expelling from a syringe three times. Six different formulations were prepared with varying ratios of Span 80 and Tween 80. The HLB of each formulation was calculated from the equation given below, so as to determine the required HLB of the oil. HLB [formula] = f [OSC] . HLB [OSC] + (1-f) [WSC] . HLB [WSC] The vials were left for 15 minutes and their stability was observed in ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
Emulsion Technology
The water in oil (w/o) emulsion has the HLB value well with in the detergent limit. The emulsion is prevented from breaking by reducing the surface tension of the film. By the combination of two emulsifiers with big difference in HLB values, the film is strengthened.
4 Pages(1000 words)Lab Report
Medicine Lab Report
It also highlights the limitations of Sub-Maximal over Maximal Exercise testing. Comparison of EVC, EFV 1 /FVC in normal case, case of Obstructive pulmonary disease & Restrictive pulmonary diseases explained. Lastly it highlights the differences in the FVC.
5 Pages(1250 words)Lab Report
Science Lab Research, Predictions, & Observations
The feather has less inertia than the rock, so it does not want to drop straight down. The rock also falls faster, because they have different
2 Pages(500 words)Lab Report
Enviromental Science - Video Answers
Planned obsolescence means “designed for the dump”; stuff here is designed to get useless as soon as possible. Perceived obsolescence convinces people to throw away stuff which is still functional and useful as they chase after what’s in. Planned and
1 Pages(250 words)Lab Report
Science and Technology - Laboratory Course (SCI103-1404A-04)
Section 2: Now that you understand how to read pH measurements, go out into the field to gather pH samples from 3 different lakes to take back to the lab for testing, and answer the following question: From the information given in the virtual lab, the lakes described as 2
1 Pages(250 words)Lab Report
SCI103- Science and Technology Lab Course_ PHASE 3_IP3
One inch of rainfall deposits 144 cubic inches or 0.623 gallons of water per square foot of surface area. Use the following formula to calculate the amount of water after one
1 Pages(250 words)Lab Report
Science of Babies
It is evident that children’s brains are much flexible than those for adults. In an attempt to understand the children’s operations better, there should be a healthy engagement
1 Pages(250 words)Lab Report
Process of Science
Within the leafhopper population, thy have got different colors and sizes. The difference in coloration may make the leafhopper to camouflage from the predators. Offspring with small bodies will have advantage over the big bodied ones since they require fewer resources to
1 Pages(250 words)Lab Report
Science Lab 2
The following lab report methodically accounts for the series of events following the sudden split of a species of lizards into two groups by a hurricane resulting in the isolation of a small group of individuals on an
1 Pages(250 words)Lab Report
Science Lab 3
er, human activities such as burning of fossil fuels, deforestation and cement production are just among the activities that have led to an imbalance in CO2 atmospheric concentration. This has been the case since the Industrial Revolution. This report is a study on the expected
1 Pages(250 words)Lab Report
Let us find you another Lab Report on topic Emulsion Technology Health Science and Medicine Essay for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us