Abstract
Abstract Samples of wheat and barley straw, milled through a 1 mm sieve, were ball milled to <0.25 mm as a representative physical treatment, or delignified by the acidchlorite procedure as a representative chemical treatment. The original and treated samples were examined using in‐vitro digestion systems based on rumen liquor‐pepsin and pepsin‐cellulase. The digestibility was determined as well as the extent of digestion of the cellulose, hemicelluloses and lignin. The rumen liquor‐pepsin system was able to digest a greater proportion of the original and treated straws than the pepsin‐cellulase system while ball milling improved the digestibility more than delignification, irrespective of the digestion system. Core lignin was not digested by either system. Ball milling improved the digestibility of the cellulose fraction to a greater extent than the hemicellulose fraction, whereas delignification had a greater effect on hemicellulose digestion than on cellulose digestion. There were also differences in the rate of removal of the different sugar residues present in the hemicellulose fraction.
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Claims 6
Claim · model-written summary
The rumen liquor‐pepsin system digested a greater proportion of wheat and barley straws than the pepsin‐cellulase system.
- Taxon
- wheat and barley
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Hordeum vulgare
Triticum aestivume0 - Treatment
- rumen liquor‐pepsin systeme1
- Outcome
- a greater proportion of the original and treated strawse1
- Direction
- greatere1
- Comparator
- pepsin‐cellulase systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Samples of wheat and barley straw”
e1“The rumen liquor‐pepsin system was able to digest a greater proportion of the original and treated straws than the pepsin‐cellulase system”
Claim · model-written summary
Ball milling improved digestibility more than delignification, irrespective of the digestion system.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Treatment
- ball millinge2
- Outcome
- digestibilitye2
- Direction
- improvede2
- Qualifier
- irrespective of the digestion systeme2
- Comparator
- delignificatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples of wheat and barley straw”
e2“ball milling improved the digestibility more than delignification, irrespective of the digestion system”
Claim · model-written summary
Core lignin was not digested by either digestion system.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Outcome
- Core lignine3
- Qualifier
- not digested by either systeme3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples of wheat and barley straw”
e3“Core lignin was not digested by either system”
Claim · model-written summary
Ball milling improved digestibility of the cellulose fraction to a greater extent than that of the hemicellulose fraction.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Treatment
- ball millinge4
- Outcome
- digestibility of the cellulose fractione4
- Direction
- to a greater extente4
- Comparator
- hemicellulose fractione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples of wheat and barley straw”
e4“Ball milling improved the digestibility of the cellulose fraction to a greater extent than the hemicellulose fraction”
Claim · model-written summary
Delignification had a greater effect on hemicellulose digestion than on cellulose digestion.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Treatment
- delignificatione5
- Outcome
- hemicellulose digestione5
- Direction
- greater effecte5
- Comparator
- cellulose digestione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples of wheat and barley straw”
e5“delignification had a greater effect on hemicellulose digestion than on cellulose digestion”
Claim · model-written summary
The rate of removal of the different sugar residues in the hemicellulose fraction differed.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Outcome
- rate of removal of the different sugar residuese6
- Qualifier
- present in the hemicellulose fractione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples of wheat and barley straw”
e6“There were also differences in the rate of removal of the different sugar residues present in the hemicellulose fraction”
The same questions in other papers
processing · quality: grain · Hordeum vulgare (barley)Positive and negative results
2 in the opposite direction
- no effect
- negative
processing · quality: grain · Triticum aestivum (wheat)Positive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
5 papers more in this group
See all 9 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.