fatty acid profile of sterculia sp. seed oils and their potential for commercial use
TRANSCRIPT
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
Related plants found to have oils used in food and industrial applications
Sterculia striata Sterculia foetida
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
Scope and Limitations of the Study
Sterculia sp. seeds Supercritical Fluid Extraction
Gas Chromatography Acid Value, Peroxide Value
Wet method of Analysis(Acid Value,Peroxide Value)
5
Gas Chromatography6
Comparing with other Types of Oils7
Identification of Sample
The seed sample was identified to be one of the species of the
genus Sterculia.
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