EXHIBITION
TWINKLING SCENT
Objectives
) To study which gel gives long lasting of fragrance
2) To produce gel air freshener with cheap cost at home
2) To produce gel air freshener with cheap cost at home
Abstract
As we know pricy fragrance give pleasant smell but if we think deeply we will realize the cost spend a lot when we have to buy it frequent times. Our project is mainly to produce fragrance product which is all of us can do it by ourselves. This is so much better as it does not spend our money a lot. The product is namely as Gel Air Freshener. The gel we used for air freshener is gelatin and agar. Comparing the gel substance is priority to know what gel can be functioning as what people ask. In order to produce the fragrance we can use the essential oil or cloth softener as it will mix with gel . We do the project in comparing the result of using gelatin versus agar. Based on obtained result, gelatin produce last longer fragrance compared to agar. Related to this trial, the mass of gelatin we used affects the long lasting of fragrance. Other than that, using home made gel air freshener only takes short time about 15 minutes to prepare and keep it for one night and next morning you can feel the freshness of gel air freshener in your house.
MATERIALS AND APPARATUS
Materials: Apparatus:
Agar 250mL beaker
Gelatin 80-100 Blooms 10mL measuring cylinder
Distilled water 100mL measuring cylinder
Perfume Analytic balance
Food coloring Cimarec hot plate
Spatula
Dropper
Petri dish
Agar 250mL beaker
Gelatin 80-100 Blooms 10mL measuring cylinder
Distilled water 100mL measuring cylinder
Perfume Analytic balance
Food coloring Cimarec hot plate
Spatula
Dropper
Petri dish
Method
1) 1g of gelatin is measured by using analytic balance.
2) Then, 3 mL of perfume and 30 mL of distilled water are measured by using measuring
cylinder.
3) The 250 mL beaker is placed on the cimarec hot plate and the 2g gelatin is put into the
beaker by using the spatula.
4) 3 mL of perfume and 30 mL of distilled water then put into the beaker and the beaker is
heated at 50 o C for about 10 minutes.
5) 2 or 3 drops of coloring food is added to the solution.
6) After 10 minutes, the cimarec hot plate is turned off and the solution is placed into the petri
dishes after it cold.
7) Then, the 1g of gelatin is replaced with 2g of gelatin and 40mL of distilled water is used
instead of 30 mL of distilled water.
8) Only the measurement of the perfume is remain the same.
9) After done with the preparation of gelatin, then the 1g of agar is prepared with the same
method like the gelatin preparation and followed by 2g of agar.
10)Lastly, all the 4 petri dishes are placed at the corner of the lab.
11)The observation is recorded every day.
2) Then, 3 mL of perfume and 30 mL of distilled water are measured by using measuring
cylinder.
3) The 250 mL beaker is placed on the cimarec hot plate and the 2g gelatin is put into the
beaker by using the spatula.
4) 3 mL of perfume and 30 mL of distilled water then put into the beaker and the beaker is
heated at 50 o C for about 10 minutes.
5) 2 or 3 drops of coloring food is added to the solution.
6) After 10 minutes, the cimarec hot plate is turned off and the solution is placed into the petri
dishes after it cold.
7) Then, the 1g of gelatin is replaced with 2g of gelatin and 40mL of distilled water is used
instead of 30 mL of distilled water.
8) Only the measurement of the perfume is remain the same.
9) After done with the preparation of gelatin, then the 1g of agar is prepared with the same
method like the gelatin preparation and followed by 2g of agar.
10)Lastly, all the 4 petri dishes are placed at the corner of the lab.
11)The observation is recorded every day.
Results
Discussion
Based on the experiment, we found that gelatin produces last longer fragrance compared to agar.
Gelatin has lower melting point compared to agar which is below body temperature (less than 35 degree Celcius) while the melting point for agar is above 85 degree Celcius. Since the gelatin’s melting point is below body temperature which gives gelatin products unique organoleptic properties and flavour release, gelatin is the most suitable material to hold the fragrance in long period of time. Organoleptic properties in this aspect are tested via the sense of smell.
Gel air freshener are able to scent the air for a long time because gelatin is a polymer specifically the polymer is collagen, a protein that forms a matrix types structure allowing the gelatin to hold its shape. The fragrance oil particles are suspended in the matrix of the gel which keeps the scent traps inside. As the gel evaporates, the scents particles are release from the matrix cause a continuous scents to be release from the air freshener.
Besides that, agar is made up of sugar galactose. High level sugar concentration make the agar harder but less cohesive texture. So the double helix of agar are able to hold the water molecule tightly which stop the evaporation process in room temperature and blocking the release of fragrance.
Gelatin has lower melting point compared to agar which is below body temperature (less than 35 degree Celcius) while the melting point for agar is above 85 degree Celcius. Since the gelatin’s melting point is below body temperature which gives gelatin products unique organoleptic properties and flavour release, gelatin is the most suitable material to hold the fragrance in long period of time. Organoleptic properties in this aspect are tested via the sense of smell.
Gel air freshener are able to scent the air for a long time because gelatin is a polymer specifically the polymer is collagen, a protein that forms a matrix types structure allowing the gelatin to hold its shape. The fragrance oil particles are suspended in the matrix of the gel which keeps the scent traps inside. As the gel evaporates, the scents particles are release from the matrix cause a continuous scents to be release from the air freshener.
Besides that, agar is made up of sugar galactose. High level sugar concentration make the agar harder but less cohesive texture. So the double helix of agar are able to hold the water molecule tightly which stop the evaporation process in room temperature and blocking the release of fragrance.
Conclusion
Based on the experiment, we can conclude that we choose air freshener with gelatin. Gel air fresheners are able to scent the air for a long time because gelatin is a polymer. Specifically, the polymer is collagen, a protein that forms a matrix type structure, allowing the gelatin to hold its shape. The fragrance substances particles are suspended in the matrix of the gel which keeps the scent trapped inside. As the gel evaporates, the scent particles are released from the matrix, causing a continuous scent to be released from the air freshener. Gelatin will evaporate over time. Even gelatin in solid form it’s still has strong scent compare to agar. When agar expose to the air over time it’s can be dry and no scent released. From our analysis, gelatin air freshener can maintain it scent long time compare to agar air freshener. Although gelatin mix with water and fragrance, it’s still in liquid form, so it can maintain the scent every day. Hence agar when we mix with water and fragrance, it’s automatically can turn to solid form, so for the first day the scent still have but for 3 days the scent disappear. Lastly, we choose air freshener with 2g of gelatin. So, our experiment is successful.
References
1. Porto, S. (2003). AGARGEL. Retrieved from http://www.agargel.com.br/agar-tec-en.html
2. J Pharm Pharmacol. (1989). The effect of gelatin grade and concentration on the migration of
solutes into and through glycerogelatin gels. United Kingdom: University of Wales College.
2. J Pharm Pharmacol. (1989). The effect of gelatin grade and concentration on the migration of
solutes into and through glycerogelatin gels. United Kingdom: University of Wales College.