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  1. Journal of the American Oil Chemists' Society
  2. Journal of the American Oil Chemists' Society : Volume 76
  3. Journal of the American Oil Chemists' Society : Volume 76, Issue 11, November 1999
  4. Composition and crystallization of milk fat fractions
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Journal of the American Oil Chemists' Society : Volume 94
Journal of the American Oil Chemists' Society : Volume 93
Journal of the American Oil Chemists' Society : Volume 92
Journal of the American Oil Chemists' Society : Volume 91
Journal of the American Oil Chemists' Society : Volume 90
Journal of the American Oil Chemists' Society : Volume 89
Journal of the American Oil Chemists' Society : Volume 88
Journal of the American Oil Chemists' Society : Volume 87
Journal of the American Oil Chemists' Society : Volume 86
Journal of the American Oil Chemists' Society : Volume 85
Journal of the American Oil Chemists' Society : Volume 84
Journal of the American Oil Chemists' Society : Volume 83
Journal of the American Oil Chemists' Society : Volume 82
Journal of the American Oil Chemists' Society : Volume 81
Journal of the American Oil Chemists' Society : Volume 80
Journal of the American Oil Chemists' Society : Volume 79
Journal of the American Oil Chemists' Society : Volume 78
Journal of the American Oil Chemists' Society : Volume 77
Journal of the American Oil Chemists' Society : Volume 76
Journal of the American Oil Chemists' Society : Volume 76, Issue 12, December 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 11, November 1999
Surfactant modification of lipases for lipid interesterification and hydrolysis reactions
Enzymatic enrichment of conjugated linoleic acid isomers and incorporation into triglycerides
Production of 8,11-cis-eicosadienoic acid by a Δ5 and Δ12 desaturase-defective mutant derived from the arachidonic acid-producing fungus Mortierella alpina 1S-4
Biocatalytic synthesis of chiral intermediates for antiviral and antihypertensive drugs
Challenges in capturing oxygenase activity in vitro
High yields of ascorbyl palmitate by thermostable lipase-mediated esterification
Solvent-free lipase-catalyzed thioesterification and transthioesterification of fatty acids and fatty acid esters with alkanethiols in Vacuo
Characterization of partially purified extracellular lipase fractions from Pseudomonas fragi CRDA 037
Characterization of yam bean (Pachyrhizus spp.) Seeds as potential sources of high palmitic acid oil
Fractionation of soybean phospholipids by high-performance liquid chromatography with an evaporative light-scattering detector
Composition and crystallization of milk fat fractions
Structural analogy between β′ triacylglycerols and n-alkanes. Toward the crystal structure of β′-2 p.p+2.p triacylglycerols
Crystal and molecular structure of an enantiomeric gossypol-acetic acid clathrate
Determination of (+)-, (−)-, and total gossypol in cottonseed by high-performance liquid chromatography
Formulation of special fats by neural networks: A statistical approach
Hydrogenation of fatty acid methyl esters to fatty alcohols at supercritical conditions
Extraction of lipid-grown bacterial cells by supercritical fluid and organic solvent to obtain pure medium chain-length polyhydroxyalkanoates
Influence of ascorbic acid and ascorbyl palmitate on the aroma composition of an oxidized vegetable oil and its emulsion
Effect of xanthan gum on enhancing the foaming properties of whey protein isolate
The potential of soapstock-derived film: Cottonseed and safflower
Journal of the American Oil Chemists' Society : Volume 76, Issue 10, October 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 9, September 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 8, August 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 7, July 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 6, June 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 5, May 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 4, April 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 3, March 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 2, February 1999
Journal of the American Oil Chemists' Society : Volume 76, Issue 1, January 1999
Journal of the American Oil Chemists' Society : Volume 75
Journal of the American Oil Chemists' Society : Volume 74

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Composition and crystallization of milk fat fractions

Content Provider SpringerLink
Author Aken, G. A. Grotenhuis, E. Langevelde, A. J. Schenk, H.
Copyright Year 1999
Abstract Milk fat was fractionated by solvent (acetone) fractionation and dry fractionation. Based on their fatty acid and acyl-carbon profiles, the fractions could be divided into three main groups: high-melting triglycerides (HMT), middle-melting triglycerides (MMT), and low-melting triglycerides (LMT). HMT fractions were enriched in long-chain fatty acids, and reduced in short-chain fatty acids and unsaturated fatty acids. The MMT fractions were enriched in long-chain fatty acids, and reduced in unsaturated fatty acids. The LMT fractions were reduced in long-chain fatty acids, and enriched in short-chain fatty acids and unsaturated fatty acids. Crystallization of these fractions was studied by differential scanning calorimetry and X-ray diffraction techniques. In this study, the stable crystal form appeared to be the β′-form for all fractions. At sufficiently low temperature (different for each fraction), the β′-form is preceded by crystallization in the metastable α-form. An important difference between the fractions is the rate of crystallization in the β′-form, which proceeds at a much lower rate for the lower-melting fat fractions than for the higher-melting fat fractions. This may be due to the much lower affinity for crystallization of the lower-melting fractions, due to the less favorable molecular geometry for packing in the β′-crystal lattice.
Starting Page 1323
Ending Page 1331
Page Count 9
File Format PDF
ISSN 0003021X
Journal Journal of the American Oil Chemists' Society
Volume Number 76
Issue Number 11
e-ISSN 15589331
Language English
Publisher Springer-Verlag
Publisher Date 1999-01-01
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Crystallization differential scanning calorimetry fractionation milk fat polymorphism triglyceride X-ray diffraction Industrial Chemistry/Chemical Engineering Analytical Chemistry Chemistry/Food Science Biotechnology Biomaterials Agriculture
Content Type Text
Resource Type Article
Subject Organic Chemistry Chemical Engineering
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