Isolation and some properties of plastochromanol-8

✍ Scribed by Olejnik, D. ;Gogolewski, M. ;Nogala-Kałucka, M.

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 341 KB
• Volume: 41
• Category: Article
• ISSN: 0027-769X
• DOI: 10.1002/food.19970410209

✦ Synopsis

Conditions suitable for preparative isolation, quantitative separation and determination ofplastochromanol-8 (PC-8), and their mild oxidation products were elaborated. Mild oxidation of PC-8 alone and with gammatocopherol (gamma-T) equimolare mixture by benzoquinone gives four and two new products, respectively. These products give Emmerie-Engel reaction. Four of gamma-T, three of PC-8 and two mixed mild oxidation products were found in linseed (Leu number = 49). It was also found that PC-8 derived from plant oils was a natural antioxidant better inhibiting autoxidationthan alpha-tocopherol in the model system in which lard was the substrate.