Paper · 1981 · Agricultural and Biological Chemistry

Structural changes in starch molecules during the malting of barley.

Yukinobu KANO; Naoyuki KUNITAKE; Takuro KARAKAWA; et al.

11
claims
19
verbatim quotes
18
citations
1
research areas
✓
Open access

Abstract

Barley was made into a normal and an over-modified malt, and the loss in starch was 14.6 % and 67.7 %, respectively. Starch granules, isolated from the barley and malts, were observed by scanning electron and light microscopes. In normal malt, 14 % of the large granules were eroded and the small granules remained almost intact. In the case of over-modified malt, 38 % of the large granules were eroded, and a marked reduction was found in the population of the small granules. Iodine affinities and blue values of the starches increased as malting proceeded. The malting of barley resulted in an apparent increase in the amylose component of the starch but hardly affected its molecular size distribution when examined by Bio-Gel A-50m column chromatography. The fine structures of the barley and malt amylopectins were compared by Shephadex G-50 and Bio-Gel P-2 column chromatographies after debranching with pullulanase. No change was observed during malting in spite of a significant reduction in the amylopectin component of the starch.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 11

Observationobservedoriginal resultmeasured

Claim · model-written summary

Starch loss was 14.6% in normal malt made from barley.

Treatment
normale1
Outcome
loss in starche1
Value
14.6 %e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Barley was made into a normal and an over-modified malt, and the loss in starch was 14.6 % and 67.7 %, respectively”

✓ located verbatim in the source · abstract, characters 0–115 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Starch loss was 67.7% in over-modified malt made from barley.

Treatment
over-modifiede1
Outcome
loss in starche1
Value
67.7 %e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“Barley was made into a normal and an over-modified malt, and the loss in starch was 14.6 % and 67.7 %, respectively”

✓ located verbatim in the source · abstract, characters 0–115 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In normal malt, 14% of the large starch granules were eroded.

Treatment
normal malte1
Outcome
large granules were erodede1
Value
14 %e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“In normal malt, 14 % of the large granules were eroded and the small granules remained almost intact”

✓ located verbatim in the source · abstract, characters 228–328 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In normal malt, the small starch granules remained almost intact.

Treatment
normal malte1
Outcome
small granulese1
Direction
remained almost intacte1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“In normal malt, 14 % of the large granules were eroded and the small granules remained almost intact”

✓ located verbatim in the source · abstract, characters 228–328 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In over-modified malt, 38% of the large starch granules were eroded.

Treatment
over-modified malte1
Outcome
large granules were erodede1
Value
38 %e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“In the case of over-modified malt, 38 % of the large granules were eroded, and a marked reduction was found in the population of the small granules”

✓ located verbatim in the source · abstract, characters 330–477 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In over-modified malt, the population of small starch granules was markedly reduced.

Treatment
over-modified malte1
Outcome
population of the small granulese1
Direction
marked reductione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“In the case of over-modified malt, 38 % of the large granules were eroded, and a marked reduction was found in the population of the small granules”

✓ located verbatim in the source · abstract, characters 330–477 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Iodine affinities and blue values of the starches increased as malting proceeded.

Treatment
malting proceedede1
Outcome
Iodine affinities and blue values of the starchese1
Direction
increasede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“Iodine affinities and blue values of the starches increased as malting proceeded”

✓ located verbatim in the source · abstract, characters 479–559 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Malting of barley resulted in an apparent increase in the amylose component of the starch.

Treatment
maltinge1
Outcome
amylose component of the starche1
Direction
increasee1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The malting of barley resulted in an apparent increase in the amylose component of the starch”

✓ located verbatim in the source · abstract, characters 561–654 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Malting of barley hardly affected the molecular size distribution of the starch.

Treatment
maltinge1
Outcome
molecular size distributione1
Direction
hardly affectede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The malting of barley resulted in an apparent increase in the amylose component of the starch but hardly affected its molecular size distribution”

✓ located verbatim in the source · abstract, characters 561–706 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

No change was observed during malting in the fine structures of barley and malt amylopectins after debranching.

Treatment
maltinge2
Outcome
fine structures of the barley and malt amylopectinse1
Direction
No changee2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“The fine structures of the barley and malt amylopectins”

✓ located verbatim in the source · abstract, characters 761–816 · show in text ↑
e2

“No change was observed during malting”

✓ located verbatim in the source · abstract, characters 925–962 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

There was a significant reduction in the amylopectin component of the starch during malting.

Treatment
maltinge1
Outcome
amylopectin component of the starche1
Direction
reductione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“barley”

✓ located verbatim in the source · title, characters 61–67 · show in text ↑
e1

“No change was observed during malting in spite of a significant reduction in the amylopectin component of the starch”

✓ located verbatim in the source · abstract, characters 925–1041 · show in text ↑

processing · molecular: metabolites · Hordeum vulgare (barley)Positive and negative results

14 papers: 8 positive, 6 negative or no effect

5 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

processing · growth · Hordeum vulgare (barley)Positive and negative results

21 papers: 10 positive, 11 negative or no effect

10 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

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.