dc.contributor.author | Faiz, Özlem | |
dc.date.accessioned | 2020-12-19T19:51:17Z | |
dc.date.available | 2020-12-19T19:51:17Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Faiz, O. (2016). Purification and characterization of a polyphenol oxidase from cimin grape (Vitis vinifera spp., Cimin). Research Journal of Biotechnology, 11(5), 87-94. | en_US |
dc.identifier.issn | 2278-4535 | |
dc.identifier.uri | https://hdl.handle.net/11436/2527 | |
dc.description | WOS: 000374989700011 | en_US |
dc.description.abstract | A polyphenol oxidase (PPO) from Cimin grape was purified 11.2-fold by using a Sepharose 4B-L-tyrosine-p-aminobenzoic acid affinity column. the optimum pH and temperature of PPO purified from Cimin grape were 7.5 and 30 degrees C respectively. the apparent Km was 19.5 mM and V-max was 2378U/mg protein. Ascorbic acid and sodium metabisulfite were potential inhibitors. Enzyme stability was higher than for most PPOs purified from other sources, with 90% of original activity retained after incubation for 2 hours at 80 degrees C. the activity of the enzyme increased by 145.7 +/- 2.0%, 138.7 +/- 2.4% and 130.5 +/- 1.4% in the presence of 1 mM Ca2+, Ni2+ and Co2+ respectively. This study gives essential information about Cimin grape PPO, an enzyme affecting the shelf-life of the fruit. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Research Journal Biotechnology | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Affinity chromatography | en_US |
dc.subject | Enzymatic browning | en_US |
dc.subject | Polyphenol oxidase | en_US |
dc.subject | Cimin grape | en_US |
dc.title | Purification and characterization of a polyphenol oxidase from cimin grape (Vitis vinifera spp., Cimin) | en_US |
dc.type | article | en_US |
dc.contributor.department | RTEÜ, Fen - Edebiyat Fakültesi, Kimya Bölümü | en_US |
dc.contributor.institutionauthor | Faiz, Özlem | |
dc.identifier.volume | 11 | en_US |
dc.identifier.issue | 5 | en_US |
dc.identifier.startpage | 87 | en_US |
dc.identifier.endpage | 94 | en_US |
dc.relation.journal | Research Journal of Biotechnology | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |