Saul Windiate - ProFresh Systems

ProFresh Systems Pty Ltd
Saul Windiate
16-17 March 2015
Postal Address: PO Box 355, Brisbane Markets, Rocklea Q4106
Tel: (07) 3162 5051 or 0430 584 123  Email: [email protected]  Skype: profresh.systems
We are a specialist post harvest solutions company focused on :

The removal of Ethylene & Volatile Organic Compounds (VOC’s) from
cold stores & throughout the transportation and distribution chain

Temperature monitoring

Post harvest packaging
Fruit Fly Netting:
Ventilated film offers :
Meets DAFF requirements
Approved for export use to
New Zealand, China, Japan & Korea
 Approved for domestic shipments
under section 1B to Tasmania
 Simple to use
 Can be used with current carton
packaging




60% air flow
reduces condensation build-up
which weakens cartons causing
them to collapse
 forklift friendly
 approved by most distribution
centres throughout the world!
Benefits of Air filtration in
the conservation of Citrus
Air Quality in Citrus
Citrus are non-climacteric fruits
vulnerable to various diseases related to air
quality (ethylene, VOCs & fungal spores)
that reduce their postharvest life.
Effects of Ethylene
• Non-climateric fruit = ethylene stimulates
fruit senescence (skin deterioration)
•
skin deterioration = risk of
fungal infection (degreened fuit).
• Rotten fruit = produces more ethylene
• Chilling sensitive fruit = agravated chilling injury
sympthoms
• Green citrus (limes) = yellowing
Literature
Ethylene/2
UCDavis Recommendations
• UC Davis recommends explicitly to remove ethylene from
transport vehicles and storage facilities to reduce the rate
of senescence and decay incidence in lemons,
mandarins, oranges and grapefruits
[http://postharvest.ucdavis.edu/frutasymelones]
Effects of VOC’s
• Microbial populations communicate with each other and their
hosts by emitting and detecting small diffusing compounds (gas
signaling).
• Evaluating volatile emission as a language for communication
between plants and the environment is gaining increasing interest.
Literature (VOCs)
• The germination of spores of Penicillium
digitatum (green mould) is induced by the
mixture of volatiles limonene, acetaldehyde
and ethanol produced by the skin of wounded
oranges (Eckert & Ratnayke, 1994).
• Rodriguez et al (2011) suggest that when
limonene reaches peak levels as the fruit
develops, it becomes a signal for pest (Ceratitis
capitata) and pathogen attraction (Penicillium
digitatum Xanthomonas citri), which facilitate
access to the fruit for pulp consumers and seed
dispersers
New Product: Bi-On CPB
• Formulation with a reinforced activity against VOC’s of
large molecular weight such as limonene.
• Recommended to protect citrus
Bi-On Trials in Citrus
The efficacy of Bi-On in citrus fruits
has been shown in different field as
well as independent trials. Bi-On
reduces the:
(1)
(2)
(3)
(4)
(5)
(6)
rots caused by Penicillium sp;
respiration rate;
weight losses;
acidity losses;
yellowing in green citrus;
chilling injury in sensitive cultivars.
Bi-On (10% waste)
CONTROL (73% waste)
Bi-On TRIAL: Tangerines(1)
Effect of Bi-On in the Disinfection of Citrus Coldstrores
IRTA-Ebrefruit (2010)
• Fortune & Hernandina tangerines (unwaxed; disinfected and
artificially wounded) were kept for 2 weeks in coldstroes
at 3ºC with and without Ethylclean system. The evaluation
was performed after 7 days at 20ºC in aseptic conditions.
• BiOn reduced by 68% the incidence of decay (Penicillium
digitatum + P italicum) caused by the environmental
pollution within the coldstore.
BI-ON Trial:
Lemons
Bi-On reduces senescence and
incidence of fungal decay
Storage
(days)
With
BI-ON
Without
BI-ON
reduction
14
28
0,56
1,14
0,83
1,96
33%
42%
42
2,18
5,34
57%
56
4,94
11,42
59%
Decay
- Four ETH 1500 machines in the coldstore
- Automatic ventilation system shut to keep the purified air inside.
- Waxed lemons
Assay carried out by CITRONAS (Holland)