Polyphenol Oxidase From Malatya Apricot (Prunus Armeniaca L.)
dc.authorscopusid | 35974671200 | |
dc.authorscopusid | 6507866438 | |
dc.authorscopusid | 6507332990 | |
dc.contributor.author | Arslan, O | |
dc.contributor.author | Temur, A | |
dc.contributor.author | Tozlu, I | |
dc.date.accessioned | 2025-05-10T17:13:19Z | |
dc.date.available | 2025-05-10T17:13:19Z | |
dc.date.issued | 1998 | |
dc.department | T.C. Van Yüzüncü Yıl Üniversitesi | en_US |
dc.department-temp | Yuzuncu Yil Univ, Sci & Art Fac, Van, Turkey; Sakarya Univ, Sci & Art Fac, Sakarya, Turkey | en_US |
dc.description.abstract | Polyphenol oxidase (PPO) of Malatya apricot was isolated by (NH4)(2)SO4 precipitation and dialysis. PPO showed activity to catechol, L-dopa, and gallic acid. Catechol was the most suitable substrate for Malatya apricot PPO (lowest K-m value). The optimum pH for the PPO was 8.5. Heating for 40 min at 40 degrees C did not cause a significant loss of enzymic activity. The times required for 50% inactivation of activitiy at 60 and 80 degrees C were found to be 47 and 16 min, respectively. The I-50 values of inhibitors studied on PPO were determined by means of activity percentage [I] diagrams. The values were 2.7 x 10(-5), 5.03 x 10(-5), 3.62 x 10(-5), 3.68 x 10(-5), and 8.30 x 10(-4) M for sodium metabisulfite, ascorbic acid, 2-mercaptoethanol, thiourea, and salicylic acid, respectively. Ascorbic acid, 2-mercaptoethanol, sodium metabisulfite, and thiourea inhibited the reaction strongly. | en_US |
dc.description.woscitationindex | Science Citation Index Expanded | |
dc.identifier.doi | 10.1021/jf970599v | |
dc.identifier.endpage | 1241 | en_US |
dc.identifier.issn | 0021-8561 | |
dc.identifier.issue | 4 | en_US |
dc.identifier.scopus | 2-s2.0-0000360858 | |
dc.identifier.scopusquality | Q1 | |
dc.identifier.startpage | 1239 | en_US |
dc.identifier.uri | https://doi.org/10.1021/jf970599v | |
dc.identifier.uri | https://hdl.handle.net/20.500.14720/8155 | |
dc.identifier.volume | 46 | en_US |
dc.identifier.wos | WOS:000073312000004 | |
dc.identifier.wosquality | Q1 | |
dc.language.iso | en | en_US |
dc.publisher | Amer Chemical Soc | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Malatya Apricot | en_US |
dc.subject | Prunus Armeniaca L. | en_US |
dc.subject | Polyphenol Oxidase | en_US |
dc.subject | Inhibitors | en_US |
dc.title | Polyphenol Oxidase From Malatya Apricot (Prunus Armeniaca L.) | en_US |
dc.type | Article | en_US |