The glyceride structure of natural fats. I. A technique for the quantitative determination of glyceride types in natural fats | Zendy

Kartha A. R. S. | Zendy

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The glyceride structure of natural fats. I. A technique for the quantitative determination of glyceride types in natural fats

Author(s) -

Kartha A. R. S.

Publication year - 1953

Publication title -

journal of the american oil chemists' society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 117

eISSN - 1558-9331

pISSN - 0003-021X

DOI - 10.1007/bf02671201

Subject(s) - glyceride , chemistry , chromatography , acetone , hydrolysis , potassium permanganate , permanganate , fatty acid , organic chemistry

Summary The acetone‐permanganate oxidation method for determination of GS 3 has been shown to be unreliable because some hydrolysis of the azelaoglycerides occurs, the products of which are determined as GS 3 . The presence of excess acetic acid throughout the oxidation corrects this defect. GS 2 A can be precipitated quantitatively as the magnesium salt. Although it is contaminated with GSA 2 , its proportion can be calculated and from this the proportion of GS 2 U in the sample can be found. The remainder of the precipitate is GSA 2 ; its weight, when added to that found in the filtrates, gives the total GSA 2 . From this, the percentage of GSU 2 in the sample can be derived. The GS 3 is determined separately, and the content of GU 3 can be estimated by difference.

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