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Seven key techniques to reduce fruit losses and improve quality at arrival”


This report provides you with useful tools and information on how to handle differently some aspects of your operation ,that can directly result in an improved financial bottomline.



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DATE: 6/27/2011    Comments: 11

Quality preservation of fresh berries after harvest: strawberries, raspberries, blackberries - the challenge and the opportunities




Berries ( strawberries, raspberries, blackberries) are one of the few product categories growing in retail sales every year in Europe. Improvements in handling, availability and taste, as well as their superb health properties make them very atractive to the consumer.

This fruit category has several aspects in common , that makes it difficult to handle after harvest, since they:


• are very perishable: average shelf life of strawberries and raspberries at optimum temperature ( 0C) is 7 days, blackberries is 5 days.
• are all hand-harvested, one by one
• have a very thin skin, and are very sensitive to pressure or bumps
• are very susceptible to fungi, especially Botrytis sp.
• do not stand free moisture in their surface. When condensation in the fruit surface occurs as a consequence of fruit being moved out of cold storage, free moisture deposits in the fruit surface and fungi grow very quickly, even at low temperatures


These factors force producers to take stricter post-harvest handling measures than with other fruits. Berries are certainly the most perishable fruits of the fresh produce category.

Therefore some measures are key for a successful berry transport and distribution, such as:

• ensuring proper sanitation in the field, avoiding any kind of inoculum from decayed fruit
• ensuring good drainage and avoiding water accumulation in the field, to avoid postharvest diseases
• timely field fungicide applications, to reduce fungi spore load, especially in high humidity days
• field packing, to avoid double handling
• ensuring harvest to cooling time does not exceed two hours; delays in cooling have a dramatic effect on quality reduction
• eliminating field heat from berries through a fast temperature pull down ( less than 1 hour)
• ensuring a rapid fruit distribution, ensuring that inventories move quickly out of cold storage into customers retail shops
• ensuring a well coordinated harvest program, avoiding fruit peaks that eventually need to be sold at a discount or discarded


Due to their very perishable nature, specific packaging technology has been developed for berry quality preservation. In particular, the use of modified atmosphere packaging that maintains a high CO2 concentration (10%-15% CO2) allows the storage and distribution of berries for an additional 3-4 days without fungi decay.

An additional innovation has been the development, over the last 5 years, of new berry varieties that have better flavor and shelf life, while maintaining other eating qualities ( sugars, etc). The evolution of berry plant breeding continues actively by all major berry companies and will deliver varieties with better taste and longer life after harvest in the next years.

Copyright 2011 Dr. Manuel Madrid
manuel.madrid@fruitprofits.com




11 Comments:
Posted by: Isarel Garcia
muy util la informacion. . . pero me guatria saver que enpresas producen el envase de admosfera modificada..
Posted by: Cesar Franco Olvera
Quiisera saber acerca de proveedores de sistemas de envasado de atmosfera controlada CO2 en tarimas de fresa para exportacion
Posted by: Eliecer Pedraza Perez
Muy importante y util para ponerlo en practica acá en Colombia, pues las perdidas en el manejo de postcosecha son muy grandes.
Posted by: claudia avelar valle
Pasa q tengo UN fruteria y verduleria quiero aumentar
mi
s ganancias y clientes pero tengo competencia Como le hago para

Atraer mas
Posted by: jose sanchez sanchez
buen dia, las maquinas que hacen el envase e inyeccion de diferentes tipos de gases para evitar el crecimiento de hongos, se llaman multivack, ellos dan capacitacion y sugerencias de cual es el mejor envase para su producto.
saludos.
Posted by: jose sanchez sanchez
buen dia, las maquinas que hacen el envase e inyeccion de diferentes tipos de gases para evitar el crecimiento de hongos, se llaman multivack, ellos dan capacitacion y sugerencias de cual es el mejor envase para su producto.
saludos.
Posted by: monica lopez
pienso en la persona con la quiero estar y digo el nombre de ella 3 veces.pienso en lo que quiero que ocurra cn esta persona en la siguente semana y repertirlo 6 veces.ahora pienso en lo que quiero con esa persona y decirlo una vez.y ahora decir esto: RAYO DE LUZ YO TE INVOCO PARA QUE DESTIERES L.A.B.A DE DONDE ESTE O CON QUIEN ESTE Y LE HAGAS LLAMARME HOY MISMO ENAMORADO Y ARREPENTIDO.DESTIERRA TODO LO QUE ESTA IMPIDIENDO QUE L/A/B.A VENGA A MI M.V.B.N APARTA A TODO LOS QUE CONTRIBUYAN A QUE NOS APARTEMOS Y QUE EL NO PIENSE MAS EN OTRA MUJER QUE SOLO PIENSE EN MI M.V.B.N QUE EL ME LLAME Y ME AME.GRACIAS,GRACIAS POR TU MISTERIOSO PODER QUE SIEMPRE CUMPLE CON LO QUE SE LE PIDE.
LUEGO HAY QUE PUBLICAR LA ORACION 3 VECES,EN 3 SITIOS DIFRENTES.CON MUCHA FE Y DE ANTE MANO AGRADEZCO POR TU MISTERIOSA AYUDA
Posted by: alix gutierrez
muy interesante y de gran ayuda me gustaria recibir artículos de post- cosecha . gracias
Posted by: juan carlos cruzado sandoval
Muy bueno el artículo y práctico. Me gustariá recibir artículos de manejo post cosecha para espárrago verde y blanco (ambos frescos).
Posted by: manipulador-de-alimentos.es Formacion online
Magníficos consejos, muchas gracias.
Enhorabuena por vuestro buen hacer.
Saludos,
http://www.manipulador-de-alimentos.es/grupos
Posted by: niria guerrero
Buenas tardes:

Agradezco información sobre vigilancia tecnológica en la exportación de fresa, para trabajo univeristario se esta investigando atmósfera modificada y controlada

Gracias por la atención
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