Abstract
Broccoli (Brassica oleracea L. var. Italica) florets were packaged in low-density polyethylene (LDPE) bags with or without ethylene adsorber under passive modified atmosphere and then stored at 4°C for 20 days. LDPE films with (8% Tazetut® masterbatch, M2) or without ethylene adsorber (M1) were tested. The effects of modified atmosphere packaging treatments on gas concentrations (O2, CO2 and ethylene) in the headspace, the mass loss, colour, texture, pH, total soluble solids, chlorophyll content, total phenolic content and sensory quality of packaged broccoli were determined by comparing with unpackaged (control) florets. Results revealed that deterioration occurred quickly in control broccoli, manifested mainly by mass loss, chlorophyll degradation and stem hardening. Also, it was found unacceptable by sensory panel after 5 days. Conversely, in those florets packaged under modified atmosphere packaging, especially for LDPE with ethylene adsorber (M2), all changes related with loss of quality were significantly reduced and delayed with time. Additionally, total soluble solids and total phenolic content remained almost unchanged during the whole period. Ethylene concentration was determined as 61.8 ppm in M1 and 0.33 ppm in M2, respectively, at the end of the storage. Thus, broccoli packaged with M2 films had prolonged storability up to 20 days with high quality attributes, this period being only 5 days in unpackaged control broccoli. Oxygen concentration decreased below 1% after 5 days of storage in M1, and the shelf life of broccoli in these bags was limited to 5 days because of risk for anaerobic fermentation. Copyright © 2013 John Wiley & Sons, Ltd.
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Claims 10
Claim · model-written summary
Unpackaged broccoli rapidly lost mass and chlorophyll and hardened.
- Taxon
- broccoli
Brassica oleracea var. italicae0 - Outcome
- mass loss, chlorophyll degradation and stem hardeninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deterioration occurred quickly in control broccoli, manifested mainly by mass loss, chlorophyll degradation and stem hardening.”
Claim · model-written summary
Unpackaged broccoli became sensorially unacceptable after five days.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Outcome
- unacceptable by sensory panele0
- Value
- 5 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also, it was found unacceptable by sensory panel after 5 days.”
t0“Broccoli”
Claim · model-written summary
Modified atmosphere packaging significantly reduced and delayed quality loss, especially with M2.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Treatment
- modified atmosphere packaginge0
- Outcome
- changes related with loss of qualitye0
- Direction
- reduced and delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conversely, in those florets packaged under modified atmosphere packaging, especially for LDPE with ethylene adsorber (M2), all changes related with loss of quality were significantly reduced and delayed with time.”
t0“Broccoli”
Claim · model-written summary
Total soluble solids remained almost unchanged during storage.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Outcome
- total soluble solidse0
- Direction
- remained almost unchangede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, total soluble solids and total phenolic content remained almost unchanged during the whole period.”
t0“Broccoli”
Claim · model-written summary
Total phenolic content remained almost unchanged during storage.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Outcome
- total phenolic contente0
- Direction
- remained almost unchangede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, total soluble solids and total phenolic content remained almost unchanged during the whole period.”
t0“Broccoli”
Claim · model-written summary
End of storage ethylene concentration was 61.8 ppm in M1.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Treatment
- M1e0
- Outcome
- Ethylene concentratione0
- Value
- 61.8 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene concentration was determined as 61.8 ppm in M1 and 0.33 ppm in M2, respectively, at the end of the storage.”
t0“Broccoli”
Claim · model-written summary
End of storage ethylene concentration was 0.33 ppm in M2.
- Taxon
- BroccoliBrassica oleracea var. italicat0
- Treatment
- M2e0
- Outcome
- Ethylene concentratione0
- Value
- 0.33 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene concentration was determined as 61.8 ppm in M1 and 0.33 ppm in M2, respectively, at the end of the storage.”
t0“Broccoli”
Claim · model-written summary
M2 packaging prolonged high quality broccoli storability to 20 days.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- M2 filmse0
- Outcome
- storabilitye0
- Direction
- prolongede0
- Value
- 20 dayse0
- Qualifier
- 5 dayse0
- Comparator
- unpackaged control broccolie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“broccoli packaged with M2 films had prolonged storability up to 20 days with high quality attributes, this period being only 5 days in unpackaged control broccoli.”
Claim · model-written summary
Oxygen fell below 1% after five days in M1 bags.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- M1e0
- Outcome
- Oxygen concentratione0
- Direction
- decreasede0
- Value
- below 1%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxygen concentration decreased below 1% after 5 days of storage in M1, and the shelf life of broccoli in these bags was limited to 5 days because of risk for anaerobic fermentation.”
Claim · model-written summary
Broccoli shelf life in M1 bags was limited to five days because of anaerobic fermentation risk.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Treatment
- M1e0
- Outcome
- shelf life of broccolie0
- Direction
- limitede0
- Value
- 5 dayse0
- Qualifier
- risk for anaerobic fermentatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxygen concentration decreased below 1% after 5 days of storage in M1, and the shelf life of broccoli in these bags was limited to 5 days because of risk for anaerobic fermentation.”
The same questions in other papers
storage · quality: general · Brassica oleracea (wild cabbage)Positive and negative results
16 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
17 papers more in this group
See all 21 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.