+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effect of processing on the composition and oxidative stability of coconut oil

, : Effect of processing on the composition and oxidative stability of coconut oil. Journal of the American Oil Chemists' Society 68(8): 574-576

The effect of various processing procedures on the composition and oxidative stability of coconut oil has been studied. The crude oil is relatively stable but major reductions in oxidative stability occur during the bleaching of oil degummed with phosphoric acid; during alkali refining; during the deodorization of oil degummed with citric acid and bleached; and during the deodorization of oil processed with a combined phosphoric acid degumming and bleaching operation. The reasons for the loss of oxidative stability during processing are discussed with reference to changes in the composition of the oil. Residual traces of citric acid or phosphoric acid play an important role in stabilizing processed oil. The tocopherol content is also important, although no additional stabilization of the oil occurs on adding levels of tocopherol above those present naturally in the crude oil. A combined phosphoric acid degumming and bleaching process leads to smaller losses of tocopherols than sequential treatments.


DOI: 10.1007/bf02660153

Other references

Makoc, Z.; Trojan, S.; Vorel, F., 1976: Effect of long-term hypoxia upon the activity of some enzymes in the brain of rats during early postnatal ontogenesis and in adulthood. Enzymatic activities were determined in the prosencephalon of rats which had been exposed repeatedly for 8 hrs, either from the age of 1 to 17 days or in adulthood, to an altitude of 7,000 m in a barometric chamber (up to a total of 104 hrs). The...

McCollister, R.J., 1988: The use of Part I National Board scores in the selection of residents in ophthalmology and otolaryngology. A survey of ophthalmology and otolaryngology residency program directors was conducted to determine the extent to which National Board of Medical Examiners (NBME) Part I scores are used in selection of residents in these highly competitive special...

Rao P.S.; Patrick P.H.; Ayres S.M.; Mueller H.S., 1981: Myo cardial lipid per oxide production during acute myo cardial infarction in man. Clinical Research 29(2): 233A

Summers, J., 1991: When clinicians and vendors ally. Journal of Healthcare Materiel Management 9(2): 60-61

Büchler, P.; Reber, H.A.; Ullrich, A.; Shiroiki, M.; Roth, M.; Büchler, M.W.; Lavey, R.S.; Friess, H.; Hines, O.J., 2003: Pancreatic cancer growth is inhibited by blockade of VEGF-RII. Background. Angiogenesis is important in the development and progression of pancreatic cancer Therefore antiangiogenic therapy targeting endothelial cells may represent a promising therapeutic option. The aim of the study was to evaluate antiangio...

D'hoostelaere L.A.; Potter M., 1986: Immunoglobulin kappa polymorphism in mus musculus domesticus populations from maryland and delaware usa. Potter, M , J H Nadeau And M P Cancro (Ed ) Current Topics in Microbiology And Immunology, 127 The Wild Mouse in Immunology; Workshop, Bethesda, Md , Usa, Nov 4-6, 1985 Xvi+395p Springer-Verlag: Berlin, West Germany; New York, N Y , Usa Illus Maps 175-185

Suzuki, Y.; Ishii, K.; Kiyosawa, M., 2016: Role of GABAergic System in Blepharospasm. Journal of Neuro-Ophthalmology 36(3): 349-350

Kharche, K.G., 1981: Effect of certain dilutors on the viability of ram spermatozoa on preservation at 4 to 5 deg C temperature. 288 ejaculates from 6 rams were used in the experimental preservation of spermatozoa for 24, 48 and 72 h. Diluents tested were: whole milk, egg yolk-citrate-glucose, egg yolk-citrate, egg yolk-phosphate, egg yolk-boric acid-sodium bicarbonate, gly...

Olmi, M., 2005: Dryinidae and Sclerogibbidae collected on the small islands of the Tuscany archipelago, on the coast of Tuscany, in Corsica and Sardinia by the researchers of Interreg II project Insecta Hymenoptera Chrysidoidea Dryinidae e Sclerogibbidae raccolti nelle piccole isole dellArcipelago Toscano, sulla costa Toscana, in Corsica e in Sardegna nel Corso del progetto Interreg ii Insecta Hymenoptera Chrysidoidea. In this paper the results of a study on Dryinidae and Sclerogibbidae collected in 1999-2003 by the Interreg II-Tuscany-Corsica project are published. The examined area is the region situated between Corsica and Sardinia and the coasts of Tuscany,...

Grau, G.E.; Piguet, P.F.; Gretener, D.; Vesin, C.; Lambert, P.H., 1988: Immunopathology of thrombocytopenia in experimental malaria. An early thrombocytopenia was observed in CBA mice during acute infection with Plasmodium berghei. This was associated with an increase in bone marrow megakaryocytes and a reduction of normal syngeneic 111Indium-labelled platelet life span. Malari...