January/February 2024 - 6

CONTROLLED ATMOSPHERE STORAGE
Peaches in a 30-gallon tank are hydrocooled
in a highly oxygenated water and ozone
solution. Photos courtesy of UGA Extension.
KEEPING
IT FRESH
POSTHARVEST FRUIT
RESEARCH AT UGA FOCUSES
ON REDUCING WASTE
By Chris Koger
Contributing Editor
W
hile the dilemma of how to feed
a rapidly increasing population
has focused primarily on how
to increase yields through growing
practices or improving the plant itself,
a growing field of research focuses on
reducing food waste.
At the University of Georgia's (UGA)
College of Agricultural and Environmental
Sciences, Angelos Deltsidis is working
on research projects designed to ensure
that Georgia fruits, vegetables and nuts
get eaten. Deltsidis, UGA professors
and grad students at the Vidalia Onion
Research Laboratory in Tifton, Georgia,
have been testing the use of ozone
to suppress disease/fungal growth
on peaches, blackberries, onions and
other fresh produce during short-term
controlled atmosphere storage. Orestis
Giannopoulos, a UGA postharvest
physiology graduate student who works
in the lab with Deltsidis, planned, set
up and executed the ozone experiments.
Tests have also focused on ozonated
water to sanitize fresh peaches prior to
packing. Because ozone breaks down
quickly, it is approved for use on organic
crops, Deltsidis said.
Peach tests have focused on gaseous
and aqueous ozone. For aqueous ozone,
peaches are hydrocooled in water in which
ozone has been dissolved. Hydrocooling
quickly after harvest el iminates
6
JANUARY/ FEBRUARY 2 024

January/February 2024

Table of Contents for the Digital Edition of January/February 2024

The Process
Keeping it fresh
Machine evolution
From farm to can
Advantages of AI
PMMI
Industry Insider
Upcoming Events
Right Now On
Advertiser Index
January/February 2024 - 1
January/February 2024 - 2
January/February 2024 - 3
January/February 2024 - The Process
January/February 2024 - 5
January/February 2024 - Keeping it fresh
January/February 2024 - 7
January/February 2024 - 8
January/February 2024 - 9
January/February 2024 - Machine evolution
January/February 2024 - 11
January/February 2024 - 12
January/February 2024 - 13
January/February 2024 - From farm to can
January/February 2024 - 15
January/February 2024 - 16
January/February 2024 - 17
January/February 2024 - 18
January/February 2024 - 19
January/February 2024 - Advantages of AI
January/February 2024 - 21
January/February 2024 - 22
January/February 2024 - 23
January/February 2024 - PMMI
January/February 2024 - 25
January/February 2024 - 26
January/February 2024 - Advertiser Index
January/February 2024 - 28
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