Results 31 to 40 of about 3,053 (162)

Modelling the kinetics of thermal inactivation of apple polyphenoloxidase [PDF]

open access: yes, 2005
The enzymatic browning of fruits and vegetables caused by mechanical injury during postharvest storage or processing is initiated by the catalytic action of polyphenoloxidase (PPO).
Saraiva, J., Machado, M. F.
core  

AMAZON ACAI AND PINEAPPLE RESIDUES INDUCE THE ENZYME LACCASE IN Pleurotus ostreatus: APPLICATION TO BISPHENOL A BIOREMEDIATION [PDF]

open access: yesQuímica Nova
Bisphenol A (BPA), an endocrine disruptor used in different commercial polymers, is a persistent pollutant commonly found in effluents. Conventional wastewater treatment processes have low chemical removal efficiency and are expensive.
Jhessica Cavalcante de Souza Golveia   +7 more
doaj   +1 more source

Inducing defence enzymes in two rice (Oryza sativa) varieties by G. mosseae arbuscular mycorrhizal fungus Inducción de enzimas de defensa en dos variedades de arroz (Oryza sativa) por el hongo micorrízico arbuscular G. mosseae

open access: yesRevista Colombiana de Biotecnología, 2006
Protecting plants against fundamentally radical pathogens is one of arbuscular mycorrhizal fungi's benefits. This work was aimed at comparing the effect of one such fungus (Glomus mosseae) on inducing a defensive response in two rice (Oryza sativa ...
Fernández Félix   +4 more
doaj   +2 more sources

Polyphenoloxidase from Starfruit (Averrhoa carambola, L.) I [PDF]

open access: yes, 1986
Polyphenoloxidase (PPO) was z50lated from starfruit (Averrhoa carambola, L.) and purified by acetone precipitation and dialysis. The optimum pH for the aCl}tone purified PPO catalysed oxidation of catechol was found to be pH 7.2 Heat 'inactivation ...
Augustin, M. A.   +2 more
core   +1 more source

Etude de l'influence de la « vinomaceration » sur la couleur et les activités polyphénoloxydasiques des jus de raisins rouges

open access: yesOENO One, 1982
L'étude expérimentale, au laboratoire, de la « vinomacération » (macération, avant fermentation, des raisins rouges non foulés dans du vin chauffé à 50 °C) montre que ce traitement n'a que des effets limités sur la couleur et les activités ...
Jean-Claude Sapis   +3 more
doaj   +1 more source

A Systematic Approach to Field Testing of Biological Products for Horticulture Is Required to Improve Food Security

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT Food security challenges require immediate action to increase food production. Many biological products derived from plant, animal or microbial sources claim they sustainably increase yield, but there are concerns about biosecurity to be investigated before their introduction to the field.
Kay Howard, Kirsty L. Bayliss
wiley   +1 more source

Inhibitory Effects of Plant Polyphenoloxidase on Colonization Factors of Streptococcus sobrinus 6715

open access: yes, 2000
Exogenously added polyphenoloxidase (EC 1.14.18.1 ), an enzyme which oxidizes tyrosine residues and is commonly found in many dietary components, abolished the aggregation of Streptococcus sobrinus 6715 by ...
E. A. Horst   +3 more
core   +1 more source

Enzymatic and Nonenzymatic Antioxidant Systems Affected by the Application of Hydrothermal Treatment and Calcium Chloride in Papaya Fruit

open access: yesInternational Journal of Food Science, Volume 2026, Issue 1, 2026.
Papaya fruits have a high content of bioactive compounds that provide them high antioxidant capacity; however, these fruits undergo rapid deterioration processes once harvested, which implies a decrease in antioxidant activity. In order to reduce the oxidative stress that causes deterioration in the fruit, it is important to use technologies to ...
Blanca Alicia López-Zazueta   +8 more
wiley   +1 more source

Effects of some termal treatments on polyphenoloxidase and peroxidase activities of banana (Musa cavensdishii, var Enana)

open access: yes, 2015
Polyphenoloxidase (EC 1.14.18.1) and peroxidase (EC 1.11.1.7) activities were evaluated during cold storage of banana (Musa cavendishii, L var enana).
Cano, M. Pilar   +2 more
core   +1 more source

Influence of controlled atmosphere storage on polyphenoloxidase activity in relation to colour changes of minimally processed ‘Jonagored’ apple [PDF]

open access: yes, 2001
The effects of the storage atmosphere composition (2% O2 + 4% CO2; 2% O2 + 8% CO2; 2% O2 + 12% CO2) on polyphenoloxidase activity and phenolic content of the ‘Jonagored’ apple variety during cold storage was evaluated, and the relationship with enzymatic
Alcina M. M. B. Morais   +3 more
core   +1 more source

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