Effect of different extraction methods on fatty acids, volatile compounds, and physical and chemical properties of avocado (Persea americana Mill.) oil.
Because Mexico is the number one producer of avocados in the world, this fruit has potential as a source for oil extraction. It is appropriate to further investigate the detailed changes that the oil undergoes when different extraction methods are applied. This research paper presents the study of the physical and chemical changes, the fatty acids profile, the trans fatty acid content, and the identification of volatile compounds of the oils from avocado pulp (Persea americana Mill.), obtained by four different extraction methods. The method with the greatest extraction yield was the combined microwave-hexane method. The amount of trans fatty acids produced in the microwave-squeezing treatment was <0.5 g/100 g. On the other hand, the amounts of trans fatty acids produced with the hexane and acetone treatments were 0.52 and 0.87 g/100 g, respectively. The method that caused the slightest modification to the oil quality was a novel combined extraction method of microwave-squeezing proposed by the authors.
Moreno
Alicia Ortiz
AO
Department of Biochemical Engineering, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico. necoechea203@axtel.net
Dorantes
Lidia
L
Galíndez
Juvencio
J
Guzmán
Rosa I
RI
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D005227:Fatty Acids / Q000032:analysis*; D005511:Food Handling; D008872:Microwaves; D027421:Persea / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D014835:Volatilization
D005227:Fatty Acids; D010936:Plant Extracts; D010938:Plant Oils