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6/19/2015
1
Future directions in postharvest handling of horticultural crops
Postharvest ShortcourseJune, 2014
James Thompson & Michael Reid
Future directions in Production
Harvest
Handling
Packaging
Storage
Transportation
Marketing
What do customers want?
Quality
Value for money
Convenience
Shelf life safety
Flavor
Variety
Nutrition
Information/recipies
Availability
Nutritious food
High in antioxidants, other phytonutrients
Existing plant materials Genetically modified plant
materials Nutrition life shorter than
appearance life! Better understanding of
the links among food, nutrition & health
Overcome anti-nutritional toxins in food
Safe food– Hot water brushing
– Pre-blanching
– Real-time pathogen testing
– Irradiation
Gloves– Releasing ClO2
Clamshells– Protect you from your
neighbors
Tasty food
Crisp tender vegetables, with good characteristic flavor
Crisp or juicy fruit with high sugar, good acid balance
Good aroma
No off flavors
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
6/19/2015
2
Quality is the Key
Which do you buy? Strawberries Grapes Apples Peaches Apricots
Strawberry
0
500
1,000
1,500
2,000
2,500
1980 1985 1990 1995 2000 2005 2010Year
Val
ue
(mill
ion
$)
Apricots
010203040506070
1980 1985 1990 1995 2000 2005 2010YearU
tiliz
atio
n (
mill
ion
lbs)
Source USDA NASS
Tasty food Non-destructive analysis
– Sugar determination
– Other taste components
Tasty food
Grow better varieties – Heirloom, high flavor cultivars
– Genetically modified cultivars
Tasty food
Harvest for taste
The glove
Tasty food
Ripeness indicators on packages
Flavor/taste indicators?
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
6/19/2015
3
New sensor technologies
Environmental parameters
Quality attributes
Transportation conditions
Smart-phone apps– Maturity (Color, Frequency)
– Physical abuse
– Temperature
– Humidity
– Wind speed
Produce handling is information intensive
Optimal handling – Product
– Variety
– Production area
– Season
– Cultural practices
– Marketing chain
New information technologies will transform quality management
Convenient to eat No/easy peel
Pre-cut
Convenient portions – small melons, large berries
No seeds
Edible rinds or peels
Ugly Food?
Is marketing misshapen & blemished product a good strategy to reduce food waste?
Increased choice Haute Horticultura
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
6/19/2015
4
Prevent low temperature flavor loss
Store chilling sensitive products above the chilling threshold
Determine safe temperatures for flavor retention
?
So what will perishables marketing look like in 10 years?
Webmarkets– Convenience, 24 hour shopping– Personal relationship and quality produce will
drive markets• CSA-like
– Refrigerated ‘slot’ in the home
Developing world – Could by-pass supermarkets?
Google on-line grocery storeGroceries in 8 hours
Underground freight systems
Urban, Interurban, intercontinental?
Pneumatic
Maglev
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
6/19/2015
5
Local production? Marketing
Market fully mature– Local
production/farmers’markets
– Just-in-time supply
– Less refrigeration
– More frequent buys
Protected cultivation
Improved water use efficiency
Expanded production season
Tailored crops ideal for mechanical management
Soil-less cultivation
Insect exclusion
On-site horticulture
Reduce transport from 2000 miles to 2 floors
Why not in the basement?
PAR LEDs for more efficient energy use
What about fruit trees?
Rotate into the production space
Refrigerated storage for chilling
Ultra-dwarfing rootstocks
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
6/19/2015
6
Why not just manufacture food?
3-D printer for food
Digital gastronomy
Printed, cooked in minutes
Foodini
Hunt’s point in 10 years?
Thanks for participating in the shortcourse!
Thanks for participating in the shortcourse!
Thompson, James, Michael Reid "Future Directions in Postharvest Handling of Horticultural Crops" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents