Fruit Produce Facts English
Recommendations for Maintaining Postharvest Quality
Maturity & Quality
Minimum maturity is based on skin color change from green to orange or reddish-orange (Hachiya) or to yellowish-green or yellow (Fuyu, California Fuyu, Jiro).
Maturity & Quality Photos
Temperature & Controlled Atmosphere
0 ± 1°C (32 ± 2°F)
Freezing point. -2°C (28°F); may vary depending on soluble solids content.
2-4 ml CO2/kg·hr at 0°C (32°F)
>0.1 µl/kg·hr at 0°C (32°F) 0.1-0.5 µl/kg·hr at 20°C (68°F)
Persimmons are very sensitive to ethylene action. Exposure to 1 ppm and 10 ppm ethylene at 20°C (68°F) accelerates softening to less than 4 lb - force (limit of marketability) after 6 and 2 days, respectively. Thus, ethylene removal and/or exclusion from transport and storage facilities is highly recommended.
Ethylene (10 ppm) at 20°C (68°F) can be used to remove astringency but the excessive softening that results would make it very difficult to market the persimmons. Exposure to air enriched with 80% CO2 for 24 hours at 20°C (68°F) is effective in removing astringency while maintaining firmness.
Temperature & Controlled Atmosphere Photos
Physiological and Physical Disorders
Use of Materials
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Except for these specified uses, no part of the textual materials available on the UC Postharvest Technology Center Web site may be copied, downloaded, stored in a retrieval system, further transmitted or otherwise reproduced, stored, disseminated, transferred or used, in any form or by any means, except as permitted herein or with the University of California's prior written agreement. Request permission from UC Postharvest Technology Center. Distribution for commercial purposes is prohibited.
The information in this fact sheet represents our best understanding of the current state of knowledge at the time of the latest update, and does not represent an exhaustive review of all research results. Links to any of these UC Postharvest Technology Center pages are permitted, but no endorsement of the linking site or products mentioned in the linking page is intended or implied by such a link.
How to Cite
Author(s) names. Initial publication or update date (located at the top). Title. Link to the specific Produce Fact Sheet webpage (Accessed date)
Example: Cantwell, M. and T. Suslow. 2002. Lettuce, Crisphead: Recommendations for Maintaining Postharvest Quality.