Abstract
Abstract Minimally processed leek stalks were produced by trimming of freshly harvested leeks ( Allium porrum L.) to sizes of 0–22, 0–11 and 11–22 cm. Trimmed stalks were then stored at 0, 10 and 20 °C in air for 8 days to determine the effects of temperature and stalk size on quality during storage, including inner leaf growth, fresh weight loss and discoloration. Both inner leaf growth and fresh weight loss were increased linearly with storage duration. Growth of cut leek inner leaves was significantly reduced to 4 mm at the end of 0 °C storage in all three types of cut stalks. Inner leaf growth was maximized during storage at 10 and 20 °C in 0–11 cm stalks, medium in 0–22 cm stalks and minimal in 11–22 cm stalks. Fresh weight loss of 0–11 cm size was significantly higher than that of 0–22 cm size at both 0 and 10 °C, whereas there was no difference between 0–11 and 11–22 cm sizes. At 10 and 20 °C the 0–11 cm size lost more weight than the 11–22 and 0–22 cm ones. Differences in color attributes were observed in most cases between stalk sizes, due to different coloration of intact leeks. Discoloration was observed particularly at the stalk base at 20 °C. Low temperatures effectively control discoloration, and reduce considerably inner leaf growth of minimally processed leeks, but do not control it. Copyright © 2005 Society of Chemical Industry
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Claims 11
Claim · model-written summary
Inner leaf growth increased linearly over storage time.
- Taxon
- leeks
Allium ampeloprasumt0 - Outcome
- inner leaf growthe0
- Direction
- increased linearlye0
- Setting
- storage duratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both inner leaf growth and fresh weight loss were increased linearly with storage duration.”
t0“leeks”
Claim · model-written summary
Fresh weight loss increased linearly over storage time.
- Taxon
- leeksAllium ampeloprasumt0
- Outcome
- fresh weight losse0
- Direction
- increased linearlye0
- Setting
- storage duratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both inner leaf growth and fresh weight loss were increased linearly with storage duration.”
t0“leeks”
Claim · model-written summary
At 0 °C, cut leek inner leaves grew only 4 mm after storage, across all three stalk sizes.
- Taxon
- leekAllium ampeloprasume0
- Organ / stage
- inner leavese0
- Treatment
- 0 °C storagee0
- Outcome
- Growth of cut leek inner leavese0
- Direction
- reducede0
- Value
- 4 mme0
- Qualifier
- all three types of cut stalkse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of cut leek inner leaves was significantly reduced to 4 mm at the end of 0 °C storage in all three types of cut stalks.”
Claim · model-written summary
At 10 and 20 °C, inner leaf growth was greatest in 0–11 cm stalks, intermediate in 0–22 cm stalks, and least in 11–22 cm stalks.
- Taxon
- leeksAllium ampeloprasumt0
- Material
- 0–11 cm stalkse0
- Organ / stage
- Inner leafe0
- Outcome
- Inner leaf growthe0
- Direction
- maximizede0
- Qualifier
- during storage at 10 and 20 °Ce0
- Comparator
- 0–22 cm stalkse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inner leaf growth was maximized during storage at 10 and 20 °C in 0–11 cm stalks, medium in 0–22 cm stalks and minimal in 11–22 cm stalks.”
t0“leeks”
Claim · model-written summary
At 0 and 10 °C, 0–11 cm leek stalks lost significantly more fresh weight than 0–22 cm stalks.
- Taxon
- leeksAllium ampeloprasumt0
- Material
- 0–11 cm sizee0
- Outcome
- Fresh weight losse0
- Direction
- highere0
- Qualifier
- at both 0 and 10 °Ce0
- Comparator
- 0–22 cm sizee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh weight loss of 0–11 cm size was significantly higher than that of 0–22 cm size at both 0 and 10 °C”
t0“leeks”
Claim · model-written summary
The 0–11 cm and 11–22 cm sizes did not differ in fresh weight loss in the stated comparison.
- Taxon
- leeksAllium ampeloprasumt0
- Material
- 0–11e0
- Outcome
- Fresh weight losse1
- Direction
- no differencee0
- Comparator
- 11–22 cm sizese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no difference between 0–11 and 11–22 cm sizes”
e1“Fresh weight loss of 0–11 cm size”
t0“leeks”
Claim · model-written summary
At 10 and 20 °C, 0–11 cm stalks lost more weight than 11–22 and 0–22 cm stalks.
- Taxon
- leeksAllium ampeloprasumt0
- Material
- 0–11 cm sizee0
- Outcome
- lost more weighte0
- Direction
- moree0
- Qualifier
- At 10 and 20 °Ce0
- Comparator
- 11–22 and 0–22 cm onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 10 and 20 °C the 0–11 cm size lost more weight than the 11–22 and 0–22 cm ones.”
t0“leeks”
Claim · model-written summary
Color attributes generally differed by stalk size, reflecting original leek coloration.
- Taxon
- leeksAllium ampeloprasume0
- Material
- stalk sizese0
- Outcome
- color attributese0
- Direction
- Differencese0
- Qualifier
- in most casese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in color attributes were observed in most cases between stalk sizes, due to different coloration of intact leeks.”
Claim · model-written summary
At 20 °C, discoloration was especially evident at the stalk base.
- Taxon
- leeksAllium ampeloprasumt0
- Organ / stage
- stalk basee0
- Outcome
- Discoloratione0
- Qualifier
- at 20 °Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discoloration was observed particularly at the stalk base at 20 °C.”
t0“leeks”
Claim · model-written summary
Low storage temperatures controlled discoloration of minimally processed leeks.
- Taxon
- leeksAllium ampeloprasume0
- Treatment
- Low temperaturese0
- Outcome
- discoloratione0
- Direction
- controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low temperatures effectively control discoloration, and reduce considerably inner leaf growth of minimally processed leeks, but do not control it.”
Claim · model-written summary
Low storage temperatures considerably reduced, but did not eliminate, inner leaf growth.
- Taxon
- leeksAllium ampeloprasume0
- Treatment
- Low temperaturese0
- Outcome
- inner leaf growthe0
- Direction
- reduce considerablye0
- Qualifier
- but do not control ite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low temperatures effectively control discoloration, and reduce considerably inner leaf growth of minimally processed leeks, but do not control it.”
The same questions in other papers
storage · growth · Allium ampeloprasum (leek)Positive and negative results
1 in the opposite direction
- no effect
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.