Post-harvest technology Flashcards
separation from the medium and site of immediate growth or production of the food
Post-harvest
movement of commodities and the operations prior to meal preparation or food processing
Post harvest handling
includes the technological aspects of marketing and distribution.
Post harvest handling
Stages during the life-span of Fruits and Vegetables
Pre-maturation -> Maturation -> Ripening -> Senescence
End of developmental stage of the fruit when it has the ability to ripen normally after harvest
Maturation
Process of developing all the desirable characteristics of the fruit
Ripening
Final stage in the development of plant organs leading to cellular breakdown and death
Senescence
Postharvest losses among major farm commodities in the Philippines range from _______________
10 to 50 %
This qualitative and quantitative loss assessment of corn postharvest was conducted in 2009 in three corn producing provinces namely: _____________________
Isabela, Bukidnon and South Cotabato
Based on a study of PHilMech and PhilRice (2010), a total of _____ grain losses incurred during the postharvest activities. Both drying and milling have the highest recorded losses with _____ and ____ share respectively.
16.47% ; 36% ; 34%
An average of _____ percent was lost in the corn postharvest system, of which _____ percent was due to drying loss.
7.8 ; 4.54
In Isabela, the losses amounted to around _____ percent where _____ percent was measured in drying.
7.15 ; 4.01
In Bukidnon, postharvest losses obtained was_____ percent,_____ percent was also due to drying loss.
7.35 ; 4.99
While in South Cotabato,____ percent was the total postharvest losses from which ____ percent was incurred during the drying operation.
5.98 ; 4.63
losses that occur before the process of harvesting
Pre-harvest
losses occur between onset and completion of the process of harvesting
Harvest
losses occur between the completion of harvest and the moment of human consumption
Post-harvest
To reduce these losses, producers and handlers must: (2 answers)
- Understand the biological and environmental factors involved in deterioration
- Use post harvest techniques that delay senescence and maintain the best possible quality
Considerations in harvesting (6 answers)
Minimize mechanical injuries
Harvest at the right time of the day
Avoid exposure to direct sunlight
Minimize latex injury
Minimize microbial growth & contamination
In-field presorting – mechanical damage, cost
Consider cost and convenience of methods
To minimize mechanical injuries, what tools do we use?
*Use sharp clippers, picking poles, padded baskets
Types of damage incurred
Mechanical damage
* Bruising
* Wounding
* Distortion
* Compression
* Abrasion
discoloration on the peel due to the corrosive action of the latex
Latex / sap
brownish-black streak that may be sunken and are attributed to aged latex stains
Latex burn
Postharvest technology procedures by PhilMech (4 answers)
Computer Vision System
Corn Sheller
Cassava Digger
Agricultural Tramline System
Another type of damage incurred
Compression
