PHENOLICS IN AQUEOUS POTATO PEEL EXTRACT - EXTRACTION, IDENTIFICATIONAND DEGRADATION

Authors
DESOTILLO DR HADLEY M HOLM ET
Citation
Dr. Desotillo et al., PHENOLICS IN AQUEOUS POTATO PEEL EXTRACT - EXTRACTION, IDENTIFICATIONAND DEGRADATION, Journal of food science, 59(3), 1994, pp. 649-651
Citations number
11
Categorie Soggetti
Food Science & Tenology
Journal title
Journal of food science → ACNP
ISSN journal
00221147
Volume
59
Issue
3
Year of publication
1994
Pages
649 - 651
Database
ISI
SICI code
0022-1147(1994)59:3<649:PIAPPE>2.0.ZU;2-X
Abstract
Phenolics were extracted from potato peel waste using water or methano l. Phenolic acids in the extracts were quantified by HPLC. The greates t amounts of phenolic acids resulted when potato homogenate was reflux ed with water for 30 min, yielding a total concentration of 48 mg/100g . Four phenolic acids (chlorogenic, gallic, protocatechuic, and caffei c) were characterized as major components. Aqueous extracts were store d 20 days and after 7 days at 25 degrees C exposed to light, chlorogen ic acid had degraded to caffeic acid.