FATTY ACID PROFILE OF Sterculia sp. SEED OILS AND

THEIR POTENTIAL FOR COMMERCIAL USE

Chelsea P. Del Rosario

Wensette B. Ladion

Jake E. Yongco

OUTLINE

INTRODUCTIONBackground of the StudyObjectives of the StudySignificance of the StudyScope and Limitations of the Study

MATERIALS AND METHODSRESULTS AND DISCUSSIONCONCLUSIONSRECOMMENDATIONS

INTRODUCTION

Background of the StudyPlant oils:

useful in health, food applications and in the industrial world

great demand of plant oils, few sources available

Necessary to find alternative sources of oils

Related plants found to have oils used in food and industrial applications

Sterculia striata Sterculia foetida

What’s new in this study?

Objectives of the Study

Main objective: to characterize the chemical properties of the oil from the seeds of Sterculia sp. especially its fatty acid profile

Ground Seeds

Oil

Supercritical Fluid Extraction

Acid ValuePeroxide Value

Gas Chromatography

VS.Sterculia sp. seed oils

Canola oil Coconut oil Palm oil

Fatty Acid Profile

Significance of the Study

determine alternative source of plant oil

Scope and Limitations of the Study

Sterculia sp. seeds Supercritical Fluid Extraction

Gas Chromatography Acid Value, Peroxide Value

MATERIALS AND METHODS

Sample Preparation2Plant Sampling1

Identification of Sample3

Extraction of Oil4

Wet method of Analysis(Acid Value,Peroxide Value)

5

Gas Chromatography6

Comparing with other Types of Oils7

RESULTS

Sample Preparation

Seed samples were found to be 231.2595 grams.

Identification of Sample

The seed sample was identified to be one of the species of the

genus Sterculia.

Extraction of Oil

Oil I – 1.8449 gramsOil II – 5.7753 gramsOil III – 7.7357 grams

Chemical Analysis: Acid Value and Peroxide Value

OIL I OIL II OIL III

Acid Value 174.73 208.80 185.88

Peroxide Value 2.360 2.780 2.445

Chemical Analysis:Gas Chromatography

FATTY ACID OIL II (%w/w) OIL III(%w/w)

Myristic 0.28 0.29

Palmitic 61.8 59.8

Stearic 4.60 4.81

Oleic 2.97 2.86

Linoleic 29.5 31.3

Linolenic 0.303 0.345

Arachidic 0.568 0.647

Comparison with Other Types of Oil

FATTY ACID OIL II OIL III PALM OIL COCONUT OIL CANOLA OIL

Caproic (C6) ND ND ND 0-0.8 ND

Caprylic (C8) ND ND ND 5.0-9.0 ND

Capric (C10) ND ND ND 6.0-10.0 ND

Lauric (C12) ND ND ND 44.0-52.0 ND

Myristic (C14) 0.28 0.29 0.5-2.0 13.0-19.0 ND

Palmitic (C16) 61.8 59.8 32.0-45.0 8.0-11.0 4.0

Stearic (C18) 4.60 4.81 2.0-7.0 1.0-3.0 2

Oleic (C18:1) 2.97 2.86 38.0-52.0 5.0-8.0 62

Linoleic (C18:2) 29.5 31.3 5-11 0-1.0 22

Linolenic (C18:3) 0.303 0.345 ND ND 10

Arachidic (C20) 0.568 0.647 ND 0-0.5 ND

% w/w

Palmitic Acid Content of Different Oils

OIL II OIL III palm oil coconut oil canola oil0

10

20

30

40

50

60

70%

w/w

Linoleic Acid Content of Different Oils

OIL II OIL III palm oil coconut oil canola oil0

5

10

15

20

25

30

35

% w

/w

Stearic Acid Content of Different Oils

OIL II OIL III palm oil coconut oil canola oil0

1

2

3

4

5

6%

w/w

CONCLUSION

Sterculia sp.(seeds) can be a source of plant oil. This type of oil can be used in many commercial applications.

RECOMMENDATION

• more comparisons with other types of oil

• subject Sterculia sp. to higher pressures and to study further the fatty acids

• Other chemical analysis

THANK YOU!

We are now ready for your questions.