139. Alternation in long-chain compounds. Part II. An X-ray and thermal investigation of the triglycerides

Clarkson, Charles E.; Malkin, T.

doi:10.1039/jr9340000666

Cited by 89 publications

(34 citation statements)

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“…This phenomenon is known as polymorphism. Three polymorphic forms-α, β , and β-which differ from each other in the hydrocarbon chain packing, have been described previously in fat systems (Clarkson & Malkin 1934).…”

Section: X-ray Powder Diffraction: Scherrer Analysismentioning

confidence: 94%

Nanostructured Fat Crystal Systems

Acevedo

Marangoni²

2015

Annu. Rev. Food Sci. Technol.

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A new understanding of the nature and organization of fat crystalline supramolecular structure, in particular at the nanoscale, has arisen in the past three years. These new findings have helped establish that the first step in the formation of a triacylglycerol network is the creation of nanocrystalline platelets that aggregate into polycrystalline clusters in the micrometer range, ultimately forming a three-dimensional network. This review explains how fat nanostructure can be characterized and highlights recent findings on how crystallization parameters influence the formation of fat nanocrystals. For instance, shear has been shown to modify not only nanoplatelet size but also their aggregation, affecting some macroscopic properties such as porosity and, therefore, the ability of the network to effectively bind liquid oil. This new information on fat nanostructure is relevant from scientific and technological standpoints and has opened up the possibility of nanoengineering material properties as well as developing new products and processes.

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Section: X-ray Powder Diffraction: Scherrer Analysismentioning

confidence: 94%

Nanostructured Fat Crystal Systems

Acevedo

Marangoni²

2015

Annu. Rev. Food Sci. Technol.

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“…Depending on the crystallization conditions, various solid states are generated, among which the hydrocarbon chain remarkably changes its lateral packing, the so-called subcell. There are three kinds of solid modifications for many TAGs [4,5]: the stable b taking the triclinic parallel (T//) subcell, and two metastable phases b 0 and a taking the orthorhombic perpendicular (O?) and the hexagonal (H) subcells [1].…”

Section: Introductionmentioning

confidence: 99%

Quasi-elastic neutron scattering study on polymorphism of tristearin: relationship between dynamical properties and subcell structures

Akita

Kawaguchi

Kaneko

et al. 2005

Journal of Crystal Growth

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“…TAG molecules tend to pack in a chair-shaped conformation forming bilayers, called lamellae, where the long chains of hydrocarbon are arranged parallel to each other (Clarkson and Malkin, 1934). These lamellae, can have the length of two, three or four fatty acids (Small, 1966).…”

Section: Crystalline Structurementioning

confidence: 99%