Paper · 1984 · Journal of the American Society of Brewing Chemists

Changes in the Level of Endogenous Abscisic Acid in Barley during Germination and Use of Abscisic Acid in Malting

K. Yamada

7
claims
13
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

Changes in the level of endogenous abscisic acid (ABA) in barley during malting were studied. On the basis of the results obtained, a new malting technique with ABA and gibberellic acid (GA3) was developed. Barley was extracted with acetone, and the ethyl acetate-soluble acidic fraction obtained from the acetone extract was subjected to Sephadex LH-20 column chromatography, silicic-acid partition column chromatography, the silica gel thin-layer chromatography. The fraction corresponding to ABA was collected and methylated. ABA was measured in a gas chromatograph equipped with an electron capture detector. Malting and brewing were performed in a pilot plant. Endogenous ABA was found in barley. Its level decreased greatly during steeping and then gradually increased during germination. On the basis of these observations, we studied the effects on malt quality of ABA and GA3 added to barley during malting. With appropriate combinations of ABA and GA3, high yields of a malt with a high extract, high diastatic power, moderate wort color, and good fermentability was obtained. Normal beer was resulted from the brewing of such malt.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

Endogenous ABA was detected in barley.

Outcome
Endogenous ABA was founde0

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

e0

“Endogenous ABA was found in barley”

✓ located verbatim in the source · abstract, characters 666–700 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Barley endogenous ABA decreased greatly during steeping.

Organ / stage
steepinge0
Outcome
levele0
Direction
decreased greatlye0

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

e0

“Its level decreased greatly during steeping”

✓ located verbatim in the source · abstract, characters 702–745 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Barley endogenous ABA gradually increased during germination.

Organ / stage
germinatione0
Outcome
gradually increasede0
Direction
increasede0

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

e0

“gradually increased during germination”

✓ located verbatim in the source · abstract, characters 755–793 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Appropriate ABA and GA3 combinations yielded much high-quality malt.

Treatment
appropriate combinations of ABA and GA3e0
Outcome
high yields of a malte0
Direction
highe0

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

e0

“With appropriate combinations of ABA and GA3, high yields of a malt with a high extract, high diastatic power, moderate wort color, and good fermentability was obtained”

✓ located verbatim in the source · abstract, characters 917–1085 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Appropriate ABA and GA3 combinations produced malt with high extract and diastatic power.

Treatment
appropriate combinations of ABA and GA3e0
Outcome
high extract, high diastatic powere0
Direction
highe0

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

e0

“With appropriate combinations of ABA and GA3, high yields of a malt with a high extract, high diastatic power, moderate wort color, and good fermentability was obtained”

✓ located verbatim in the source · abstract, characters 917–1085 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Appropriate ABA and GA3 combinations produced malt with moderate wort color and good fermentability.

Treatment
appropriate combinations of ABA and GA3e0
Outcome
moderate wort color, and good fermentabilitye0

Not reportedComparatorDirection

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

e0

“With appropriate combinations of ABA and GA3, high yields of a malt with a high extract, high diastatic power, moderate wort color, and good fermentability was obtained”

✓ located verbatim in the source · abstract, characters 917–1085 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Brewing the resulting barley malt produced normal beer.

Outcome
Normal beere0

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

e0

“Normal beer was resulted from the brewing of such malt”

✓ located verbatim in the source · abstract, characters 1087–1141 · show in text ↑
t0

“in Barley”

✓ located verbatim in the source · title, characters 49–58 · show in text ↑

Gibberellic acid · yield · Hordeum vulgare (barley)Results differ

11 papers: 9 positive, 2 negative or no effect

8 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

7 papers more in this group

See all 11 papers →

(+)-abscisic acid · yield · Hordeum vulgare (barley)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

(+)-abscisic acid · quality: postharvest · Hordeum vulgare (barley)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Gibberellic acid · quality: postharvest · Hordeum vulgare (barley)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.