Polymorphism of rapeseed oil with a low content of erucic acid and possibilities to stabilise the β′-crystal form in fats

✍ Scribed by Lars Hernqvist; Kåre Larsson; Bengt Herslöf; Oldrich Podlaha

• Publisher: John Wiley and Sons
• Year: 1981
• Tongue: English
• Weight: 401 KB
• Volume: 32
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740321210

✦ Synopsis

Abstract

The polymorphism of hydrogenated rapeseed oil with a low content of erucic acid was investigated by X‐ray diffraction. The triglyceride composition in the hydrogenated oil was determined by a combination of gas chromatography and high‐performance liquid chromatography. A characteristic feature of this oil is its rapid transition to the β‐form. Possibilities of influencing the β′→ β transition are discussed. The addition of diglycerides appears to provide a means for delaying the β′rarr; β transition. Thus, 1,2‐diglycerides show a strong stabilising effect on the β′ triglyceride crystals form, which is considered to be of technical interest.