Agriculture Reference
In-Depth Information
Broccoli
(
Brassica
oleracea
var.
Italica
)
“Monterey”cv.
PMAP:
1. 18.8-15.3 %
O
2
/2.5-6.7 % CO
2
2. 13.2-12.6 %
O
2
/1.9-2.5 % CO
2
3. 12.4-9.5 %
O
2
/2.9-4 % CO
2
4. 20.6-18.8 %
O
2
/0.3-1.3 % CO
2
For the fi rst and
second storage
temperature
1. OPP (OTR: 1,300
and CDTR:
4,900 mL/
m
2
day atm.)
2. LDPE with
ethylene adsorbing
sachet (OTR:
10,960 and CDTR:
>46,000 mL/
m
2
day atm.)
3. LDPE 2 (OTR:
4,290 and CDTR:
18,600 mL/
m
2
day atm.)
4. PVC (OTR:
56,100 and CDTR:
>173,000 mL/
m
2
day atm.)
4 and 10 °C for 28 days
The longest
shelf-life, when
30 % of the head
had turned
yellow, was
achieved by OPP
fi lm (15 days at
4 °C and 10 days
at 10 °C)
Weight losses were
less in samples
stored in OPP and
LDPE 2 bags.
Samples in LDPE
2 retained textural
properties for 2
weeks in both
storage
temperatures
Samples were
preserved for a
longer time period
stored at 4 °C. Shelf
life of samples at
4 °C was 15, 12 and
11 days for samples
stored in OPP,
LDPE and LDPE 2
bags, respectively.
At 10 °C, samples
were acceptable for
7, 6 and 9 days
stored in OPP,
LDPE and LDPE 2
bags, respectively.
LDPE 2 was the
fi lm that preserved
overall quality at
both temperatures
Jacobsson
et al.
(
2004c
)
Broccoli
fl orets
(
Brassica
oleracea
var.
Italica
)
“Youxiu” cv.
PMAP
1. PE with no holes
(M
0
)
2. PE with 2 holes
(M
1
)
3. PE with 4 holes
(M
2
)
Washing with a
50 ppm NaOCl
solution for 1 min
4 and 20 °C—23 and 5
days, respectively
Visual quality
was best retained
by M
0
fi lm,
followed by M
1
and M
2
fi lm
Weight losses were
lower on MAP
treated samples
(<4 %) with the
lowest values
attained by M
0
fi lm
M
0
treated samples
retained acceptable
visual attributes and
glucosinolate (74 %
of indole and 74 of
total aliphatic
glucosinolates at
4 °C and 78 % of
total aliphatic
glucosinolates
contents at 20 °C)
for 13 days at 4 °C
and 3 days at 20 °C
Jia et al.
(
2009
)
Broccoli
heads
(
Brassica
oleracea
var.
Italica
)
“Marathon”
cv.
1. CA with 1.5 %
O
2
/6 % CO
2
2. PMAP
1. LDPE without
holes and stored at
4 °C
2. LDPE with
microholes and
stored at 20 °C
Both fi lms were used
4 and 20 °C —25 and 10
days, respectively
Visual quality of samples
was preserved in both
MAP and control
samples stored at 4 °C. At
20 °C, acceptable visual
quality was preserved for
7 and 3 days, for MAP
Glucoraphanin
concentrations
remained stable
close to the initial
levels on samples
stored under PMAP
at 4 °C (4.3
Rangkadilok
et al. (
2002
)
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