Abstract
Water-soluble sugars, sugar alcohols, cell wall constituents, protein, total amino acids, and free amino acids were determined in developing almond kernels (Prunus amygdalus) at 3-week intervals from March until harvest. A sharp drop of sugars (from 60 to 5-6% dry weight) was observed in a first stage. Reducing sugars decreased from initial high percentages to a final trace level. Changes in hemicellulose, cellulose, and lignin were also studied; the results suggest that these constituents are employed as a carbohydrate source during a period. Protein content increased steadily up to harvest, more markedly during a 20-day period. Significant variations of amino acid content were detected. The content of free amino acids is considerable in developing almonds, while ripe kernels contain insignificant amounts. © 1989 American Chemical Society.
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Claims 6
Claim · model-written summary
Sugars in developing almond kernels fell sharply from 60 to 5-6% dry weight in the first stage.
Not reportedTaxon
Verbatim
e0“A sharp drop of sugars (from 60 to 5-6% dry weight) was observed in a first stage.”
t0“almond seeds”
Claim · model-written summary
Reducing sugars declined from high initial percentages to trace levels.
- Taxon
- almond
Prunus dulcist0 - Outcome
- Reducing sugarse0
- Direction
- decreasede0
- Qualifier
- a final trace levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reducing sugars decreased from initial high percentages to a final trace level.”
t0“almond seeds”
Claim · model-written summary
Hemicellulose, cellulose and lignin may serve as a carbohydrate source during development.
- Taxon
- almondPrunus dulcist0
- Outcome
- carbohydrate sourcee0
- Qualifier
- during a periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the results suggest that these constituents are employed as a carbohydrate source during a period.”
t0“almond seeds”
Claim · model-written summary
Protein content increased steadily until harvest, especially over a 20-day period.
- Taxon
- almondPrunus dulcist0
- Outcome
- Protein contente0
- Direction
- increasede0
- Qualifier
- during a 20-day periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein content increased steadily up to harvest, more markedly during a 20-day period.”
t0“almond seeds”
Claim · model-written summary
Amino acid content varied significantly during almond kernel development.
- Taxon
- almondPrunus dulcist0
- Outcome
- amino acid contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant variations of amino acid content were detected.”
t0“almond seeds”
Claim · model-written summary
Free amino acids were considerable in developing almonds but insignificant in ripe kernels.
- Taxon
- almondsPrunus dulcise0
- Outcome
- content of free amino acidse0
- Qualifier
- insignificant amountse0
- Comparator
- ripe kernelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of free amino acids is considerable in developing almonds, while ripe kernels contain insignificant amounts.”