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Chlorogenic and quinic acids in sunflower meal

✍ Scribed by B. Milić; S. Stojanović; N. Vučurević; M. Turčić


Book ID
102922763
Publisher
John Wiley and Sons
Year
1968
Tongue
English
Weight
504 KB
Volume
19
Category
Article
ISSN
0022-5142

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✦ Synopsis


Chlorogenic and quinic acids were isolated from the kernel of sunflower seed by column chromatography and identified by paper chromatography. Ultra-violet and infra-red spectra of the above acids were compared with those of pure preparations. The contents of both acids in the kernel and hull of sunflower seeds were determined and the conversion of chlorogenic acid into quinic acid at temperatures of 100" and 135" was followed. During storage of sunflower meal re-synthesis of chlorogenic acid was observed. Effects of isolates of chlorogenic and quinic acids on a-amylase, trypsin and lipase activity were detected.


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Five different genotypes (Tesoro, Marko, Clip, Vyp-70 and Nanta) of sun¯ower seeds were studied and the phenolic compositions of their kernel and hull were characterised by HPLC and MS techniques. The main phenolic compounds present in both the kernel and hull are chlorogenic acid, caffeic acid and