Results 91 to 100 of about 2,050 (137)

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

Evaluation of two polyphenoloxidase kinetic parameters at three stages of <i>Musa sapietum</i> fruit maturation

open access: yes, 2008
The activity of polyphenoloxidase extracted from Musa sapietum fruit was investigated at three stages of the fruit maturation; the developmental, matured and ripened stages of the fruit. Spectrophotometric method was used to assay for the enzyme activity
P C Chikezie   +5 more
core   +1 more source

Effect of high-pressure treatment on polyphenoloxidase activity of the Agaricus Bisporus Mushroom

open access: yes, 2002
High pressure treatments (100-500 Mpa/4 °C/10 min) were carried out on freshly sliced mushrooms ( Agaricus bisporus ) and on liquid extract. Pressure above 200 MPa led to respiratory activity loss, significant enzymatic browning and polyphenoloxidase ...
LARGETEAU, Alain   +4 more
core   +1 more source

Optimizing the use of potassium sorbate and sodium metabisulphite for the chemical and microbial stability of carbonated coconut water

open access: yesBrazilian Journal of Food Technology, 2013
Coconut water is popular worldwide, mainly because of its pleasant sensory characteristics, nutritional value and low calorie density. However, coconut water is a highly perishable product due to the presence of enzymes such as peroxidase and ...
Eliene Penha Rodrigues Pereira   +2 more
doaj  

ENZYME KINETICS OF POLYPHENOL OXIDASE FROM GROS MICHEL BANANA

open access: yesVitae, 2009
The post harvest of banana is accompanied by multiple enzymatic reactions, which cause the degradation of starches and chlorophyll, the synthesis of sugars and carotenes, changes in the acidity, tissue softening and enzymatic browning.
Claudia L. GARCÍA W.   +3 more
doaj  

SàNG LọC THựC VậT Có HOạT TíNH CHốNG OXI HóA Và ÁP DụNG TRONG CHế BIếN THủY SảN

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2013
Hoạt tính chống oxi hóa của dịch chiết từ 15 loại thực vật và một loại nấm rơm ở Việt Nam được xác định nhằm chọn được loại thực vật có hoạt tính chống oxi hóa cao.
Nguyễn Xuân Duy, Nguyễn Anh Tuấn
doaj  

Substrate Specificity, Heat Inactivation and Inhibition of Polyphenoloxidase From Anethum Graveolens L

open access: yes, 1997
Polyphenoloxidase (PPO), isolated from Anethum graveolens L, showed activity on catechol, L-tyrosine and DL-DOPA. The optimum pH for the PPO was 7.0.
Tozlu, I, Arslan, O
core   +1 more source

Karakterisasi dan Pemurnian Enzim Polyphenoloxidase dari Udang Windu (Penaeus monodon)

open access: yes, 2014
Udang merupakan komoditas perikanan yang sangat penting. Nilai ekspor dan tingkat konsumsi udang mendorong pemerintah untuk meningkatkan produksi udang. Industri udang tidak luput dari permasalahan-permasalahan.
Suhandana, Made
core  

The formation of isovaleraldehyde from ℓ-leucine and isobutyraldehyde from ℓ-valine catalyzed by banana polyphenoloxidase and peroxidase

open access: yes, 1982
Possible mechanisms for the formation of isovaleraldehyde from l-leucine and isobutyraldehyde from l-valine in bananas are described. These aldehydes are key intermediates for the development of the branched-chain alcohols and esters, which are prominent
Setiabasa, Imas Artati
core  

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