Results 11 to 20 of about 8,233 (250)

Effect of Different Dried Methods and Storage on Some Enzymes Activity and Quality of Cactus pear and Papaya [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2021
This study was to evaluate the activity of peroxidase, polyphenoloxidase, pectin methyl esterase and protease as well as the proximate chemical composition and quality parameters of cactus pear and papaya which were dried by different methods and stored ...
Marwa Abdel-Hady   +3 more
doaj   +1 more source

Characterisation of ‘Starking’ apple polyphenoloxidase [PDF]

open access: yesJournal of the Science of Food and Agriculture, 1998
Experiments were performed to optimise the extraction conditions of 'Starking' apple fruit polyphenoloxidase (PPO), to evaluate the affinity and specificity towards several substrates and to study the stability of enzyme extracts from apple samples stored under different conditions.
Rocha, Ada   +3 more
openaire   +6 more sources

Effect of Postharvest UV-C Radiation on Nutritional Quality, Oxidation and Enzymatic Browning of Stored Mature Date

open access: yesApplied Sciences, 2022
The effect of three doses of UV-C radiation (1, 3 and 6 kJ m−2) on conservation potential after harvest of the Deglet-Nour date for five months of storage at 10 °C was studied.
Saliha Dassamiour   +9 more
doaj   +1 more source

Variation of polyphenoloxidase in phenanthrene-degrading and other aromatic compounds-degrading bacteria

open access: yes浙江大学学报. 农业与生命科学版, 2006
Effects of phenanthrene on phenol oxidase of Sphingomonas paucimobilis ZX4 were dealed with by measuring polyphenoloxidase activity and PAGE combined with enzyme activity staining phenol oxidase.
LI Na   +4 more
doaj   +1 more source

Alterações pós-colheita da "fruta-de-lobo" (Solanum lycocarpum St. Hil.) durante o amadurecimento: análises físico-químicas, químicas e enzimáticas Postharvest changes of "fruta-de-lobo" (Solanum lycocarpum St. Hil.) during the ripening process: physical-chemical, chemical and enzymatic analysis

open access: yesRevista Brasileira de Fruticultura, 2004
Estudaram-se, neste trabalho, algumas modificações físico-químicas, químicas e enzimáticas, em pós-colheita, durante o amadurecimento da fruta-de-lobo, comparando-as com as de outros frutos.
Enio Nazaré de Oliveira Junior   +4 more
doaj   +1 more source

Interaction ammonium-nitrate: Response to oxidative stress in chicory plants [PDF]

open access: yes, 2010
The aim of this work was to study, as a function of the different availability of nitrogen in the reduced form, mineral and organic, the induction of the synthesis of some ROS-scavenging molecules and the evolution of some enzymatic activities such as ...
Adalgisa Belligno   +2 more
core   +2 more sources

Polyphenoloxidase from Amasya Apple

open access: yesJournal of Food Science, 1995
ABSTRACT Polyphenoloxidase (PPO) of Amasya apple was partially purified by (NH 4 ) 2 SO 4 precipitation and dialysis. The sample was used for characterization of the PPO. Optimum pH were 7.0, 9.0,
KUFREVIOGLU, I   +3 more
openaire   +4 more sources

Natural pigments derived from plants and microorganisms: classification, biosynthesis, and applications. [PDF]

open access: yesPlant Biotechnol J
Summary Pigments, as coloured secondary metabolites, endow the world with a rich palette of colours. They primarily originate from plants and microorganisms and play crucial roles in their survival and adaptation processes. In this article, we categorize pigments based on their chemical structure into flavonoids, carotenoids, pyrroles, quinones ...
Tang Q, Li Z, Chen N, Luo X, Zhao Q.
europepmc   +2 more sources

Changes in Antioxidant Enzymes Activity and Oxidative Damage in Four Argania spinosa Ecotypes Under Water Stress Conditions [PDF]

open access: yes, 2011
_Argania spinosa_ L. Skell, a tree endemic of Morocco, grows in semiarid and arid areas. Biochemical response to drought in four ecotypes of the _A. spinosa_ was compared.
Abdelghani Chakhchar   +4 more
core   +2 more sources

Cinética de inativação da polifenoloxidase e peroxidase de abacate (Persea americana Mill.) Kinetic of inactivation of polyphenoloxidase and peroxidase of avocado (Persea americana Mill.)

open access: yesCiência e Agrotecnologia, 2007
Extratos enzimáticos foram preparados a partir da polpa de abacate (Persea americana Mill.) dos cultivares Quintal, Fortuna e Choquete, em dois estádios de maturação (verde e maduro).
Rúbia Caroline Luíz   +2 more
doaj   +1 more source

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