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פותח על ידי קלירמאש פתרונות בע"מ -
Postharvest application of 1-MCP to improve the quality of various avocado cultivars
Year:
2005
Source of publication :
Postharvest Biology and Technology
Authors :
הרשקוביץ, ורה
;
.
פסיס, עדנה
;
.
Volume :
37
Co-Authors:


Saguy, S.I., Institute of Biochemistry Food Science and Nutrition, Faculty of Agricultural, Food and Environmental Sciences, Hebrew University, Jerusalem, Israel
Pesis, E., Department of Postharvest Science of Fresh Produce, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel

Facilitators :
From page:
252
To page:
264
(
Total pages:
13
)
Abstract:
1-Methylcyclopropene (1-MCP), an ethylene action inhibitor, significantly delayed the ripening of the avocado cultivars 'Ettinger', 'Hass' and 'Pinkerton'. Application of 1-MCP at low concentration (300 nl l-1), prior to the climacteric increase, was effective and delayed the onset of the climacteric peaks of CO2 and ethylene production. The delay was associated with reductions in fruit softening and in electrical conductivity (EC), the latter being an indicator of membrane permeability. The 1-MCP-treated 'Ettinger' and 'Pinkerton' avocado fruit maintained a greener peel color because of their lower levels of chlorophyllase activity and less chlorophyll breakdown. Treatment with 1-MCP at 300 nl l-1 prior to cold storage reduced chilling injury (CI) symptoms that are expressed as mesocarp discoloration and reduced polyphenol oxidase (PPO) and peroxidase (POD) activities in avocadoes stored at 5°C for 3.5 weeks. PPO and POD activities were low in harvested fruit and increased significantly during cold storage and shelf life at 20°C. 1-MCP was effective in reducing pulp browning in all the tested avocado cultivars. Mesocarp discoloration in avocado was found to be correlated with increases in EC values and PPO and POD activities. © 2005 Elsevier B.V. All rights reserved.
Note:
Related Files :
Avocado
chilling injury
chlorophyllase
Mesocarp discoloration
peroxidase
Persea americana
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.postharvbio.2005.05.003
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20576
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:37
Scientific Publication
Postharvest application of 1-MCP to improve the quality of various avocado cultivars
37


Saguy, S.I., Institute of Biochemistry Food Science and Nutrition, Faculty of Agricultural, Food and Environmental Sciences, Hebrew University, Jerusalem, Israel
Pesis, E., Department of Postharvest Science of Fresh Produce, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel

Postharvest application of 1-MCP to improve the quality of various avocado cultivars
1-Methylcyclopropene (1-MCP), an ethylene action inhibitor, significantly delayed the ripening of the avocado cultivars 'Ettinger', 'Hass' and 'Pinkerton'. Application of 1-MCP at low concentration (300 nl l-1), prior to the climacteric increase, was effective and delayed the onset of the climacteric peaks of CO2 and ethylene production. The delay was associated with reductions in fruit softening and in electrical conductivity (EC), the latter being an indicator of membrane permeability. The 1-MCP-treated 'Ettinger' and 'Pinkerton' avocado fruit maintained a greener peel color because of their lower levels of chlorophyllase activity and less chlorophyll breakdown. Treatment with 1-MCP at 300 nl l-1 prior to cold storage reduced chilling injury (CI) symptoms that are expressed as mesocarp discoloration and reduced polyphenol oxidase (PPO) and peroxidase (POD) activities in avocadoes stored at 5°C for 3.5 weeks. PPO and POD activities were low in harvested fruit and increased significantly during cold storage and shelf life at 20°C. 1-MCP was effective in reducing pulp browning in all the tested avocado cultivars. Mesocarp discoloration in avocado was found to be correlated with increases in EC values and PPO and POD activities. © 2005 Elsevier B.V. All rights reserved.
Scientific Publication
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