Polyphenoloxidase
Mostrando 1-12 de 53 artigos, teses e dissertações.
-
1. Storage of markies cultivar potatoes for prossessing
ABSTRACT The refrigerated induce the sweetening of the potato, which results in the dark color. The objective of this study was to determine the temperature and shelf life of Markies potato tubers under refrigerated storage for the processing of French fries. The levels of total soluble sugar (TSS), reducing sugars (RS), peroxidase (POD) and polyphenoloxidas
Rev. Ceres. Publicado em: 2021-04
-
2. Activity of polyphenoloxidase and peroxidase in non-dormant potato tubers treated with sprout suppressors
Abstract One of the major problems affecting potatoes quality on stored is the susceptibility to enzymatic browning, which occurs mainly after wounds during the harvest, at postharvest handling and by aging, leading to the development of dark color compounds. Enzymatic browning is associated with the action of polyphenoloxidases (PPO) and peroxidases (POD),
Food Sci. Technol. Publicado em: 2020-06
-
3. Activity of polyphenoloxidase and peroxidase in non-dormant potato tubers treated with sprout suppressors
Abstract One of the major problems affecting potatoes quality on stored is the susceptibility to enzymatic browning, which occurs mainly after wounds during the harvest, at postharvest handling and by aging, leading to the development of dark color compounds. Enzymatic browning is associated with the action of polyphenoloxidases (PPO) and peroxidases (POD),
Food Sci. Technol. Publicado em: 04/11/2019
-
4. Óleos essenciais no controle de Botrytis cinerea: influência na qualidade pós-colheita de uvas ‘Rubi’
Resumo Para que ocorra o controle de doenças na pós-colheita de uvas, são utilizados agroquímicos que, apesar de eficientes, podem causar problemas à saúde humana. Neste sentido, o presente trabalho tem o objetivo de verificar o potencial dos compostos voláteis presentes no óleo essencial de pitanga (OEP), guaçatonga (OEG) e melaleuca (OEM) no contr
Braz. J. Food Technol.. Publicado em: 17/10/2019
-
5. Green propolis ethanolic extract in bean plant protection against bacterial diseases
RESUMO: Este trabalho teve como objetivo avaliar o extrato etanólico de própolis verde (EEP) na proteção de plantas de feijoeiro contra as duas principais bacterioses da cultura, crestamento bacteriano (Xanthomonas axonopodis pv. phaseoli) e fogo selvagem (Pseudomonas syringae pv. tabaci). Foram realizados experimentos sobre atividade antimicrobiana ind
Cienc. Rural. Publicado em: 16/05/2019
-
6. Enzymatic polyphenoloxidase inactivation with temperature and ozone in sugarcane variety RB 92579 to produce lower color sugar
Resumo Algumas variedades de cana têm alta atividade da enzima polifenoloxidase, prejudicando o processo de produção de açúcar de cor menos escura. Polifenoloxidase (PPO) é uma enzima pertencente ao grupo de oxidorredutases e está presente numa quantidade maior ou menor, dependendo da variedade de cana-de-açúcar, das condições climáticas, da ida
Braz. J. Food Technol.. Publicado em: 25/02/2019
-
7. Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier
Abstract As a glacier retreats, barren areas are exposed, and these barren areas are ideal sites to study microbial succession. In this study, we characterized the soil culturable bacterial communities and biochemical parameters of early successional soils from a receding glacier in the Tianshan Mountains. The total number of culturable bacteria ranged from
Braz. J. Microbiol.. Publicado em: 2018-09
-
8. Potential of ethyl acetate fractions of Stryphnodendron adstringens shells and fruit extracts of Caesalpinia ferrea to control bacterial leaf speck and on the potentiation of defense enzymes in tomato
Considering the importance of bacterial leaf speck (Pseudomonas syringae pv. tomato) in reducing tomato yield and difficulties in disease control, this study investigated the effects of fractions of shells extract of Stryphnodendron adstringens (Sa) and fruit extract of Caesalpinia ferrea (Cf) compared to Acibenzolar-S-Methyl (ASM) on reducing bacterial leaf
Trop. plant pathol.. Publicado em: 2014-08
-
9. Induction of resistance to Pyricularia oryzae in wheat by acibenzolar-S-methyl, ethylene and jasmonic acid
This study investigated the effects of acibenzolar-S-methyl (ASM), ethylene (ET) and jasmonic acid (JA) on the resistance of two wheat cultivars (BRS-229 and BR-18) to infection by Pyricularia oryzae. The treatments included spraying plants with ASM (300 mg L-1), ET (0.5 mM), JA (0.1 mM) and distilled water (control) 48 h before inoculation with P. oryzae. M
Trop. plant pathol.. Publicado em: 2014-06
-
10. Thermal inactivation of polyphenoloxidase and peroxidase in Jubileu clingstone peach and yeast isolated from its spoiled puree
The thermal inactivation of yeast isolated from spoiled Jubileu peach puree and that of polyphenoloxidase (PPO) and peroxidase (POD) in cv. Jubileu, which is widely cultivated in southern Rio Grande do Sul state, Brazil, were studied. PPO and POD were extracted using the protein powder method and submitted to partial purification by precipitation followed by
Food Sci. Technol. Publicado em: 2014-03
-
11. Silicon reduces bacterial speck development on tomato leaves
This study aimed to evaluate the effect of silicon (Si) on the resistance of tomato plants (cv. Santa Clara) to bacterial speck, caused by Pseudomonas syringae pv. tomato (Pst). Tomatoes were grown in soil without calcium silicate (control), in soil without calcium silicate and sprayed with Supa Sílica® (2 mL/L) (SS) and in soil with calcium silicate (0.16
Trop. plant pathol.. Publicado em: 02/08/2013
-
12. Synergistic effect of acetyl salicylic acid and DL-Beta-aminobutyric acid on biocontrol efficacy of Bacillus strains against tomato bacterial wilt
This study was conducted to assess the biocontrol efficacy of Bacillus subtilis (strain 4812) and Bacillus methylotrophicus (strain H8) individually or in combination with two plant defense inducers including Acetyl salicylic acid (ASA) and DL-Beta-aminobutyric acid (BABA) against tomato wilt caused by Ralstonia solanacearum. The pathogen was significantly i
Trop. plant pathol.. Publicado em: 2013-04