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Charakterystyka biochemiczna polifenoloksydazy (PPO)

Charakterystyka biochemiczna polifenoloksydazy (PPO)

Chandana Mavinakere / Hanumanthappa K. Makari / K. V. Aanjana Devi

65,35 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Biologia, ciencias de la vida
ISBN:
9786209568435
65,35 €
IVA incluido
Disponible

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Polifenoloksydazy to grupa enzymów powszechnie występujących w bakteriach, grzybach, roślinach i zwierzętach. Badanie przeprowadzono w celu wyizolowania i scharakteryzowania polifenoloksydazy z owoców Artocarpus altilis (chlebowca). Enzymy te zwykle występują w chloroplastach roślin, chociaż uwalniają się z nich podczas starzenia się lub dojrzewania. Enzym ten odpowiada za brązowienie wielu owoców i warzyw, powodując straty ekonomiczne dla rolników. Wielu badaczy pracowało nad ekstrakcją i charakterystyką tego enzymu z różnych roślin i nadal pracuje nad jego hamowaniem, aby zapobiec stratom. W ramach tego projektu podjęliśmy próbę ekstrakcji enzymu polifenoloksydazy z miąższu owoców chlebowca i jego charakterystyki. Badania wykazały obecność aktywnej polifenoloksydazy w miąższu A. altilis, która wykazuje wysoką specyficzność względem katecholu w porównaniu z fenolem, którego aktywność traci TCA, którego optymalne pH wynosi 6, a optymalna temperatura 35 stopni Celsjusza. Do określenia masy cząsteczkowej enzymu wykorzystano technikę SDS-PAGE i zymografię. Powyższe informacje stanowią krótki wgląd w przyszłe badania.

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