Abstract
Soybeans represent the largest source of plant proteins on the planet but their proteins are associated with low digestibility. Although several studies addressed the limiting factors affecting the rate and extent of soy protein digestion, the net effect of the food matrix, especially of an intact cell wall, has been poorly investigated so far. The purpose of the present study was to examine the relationship between the cell matrix and protein hydrolysis during simulated in vitro digestion of soybean particles of different sizes prepared from unheated and boiled cotyledons. In addition, intact cells were isolated from unheated and autoclaved cotyledons and then digested with and without lipase inhibitors to understand the impact of an intact cell wall and the presence of oil bodies on soybean protein digestibility. Protein digestibility was the highest in the particles prepared after boiling of previously milled cotyledons compared to particles of the same size obtained by milling previously cooked cotyledons as well as of uncooked cotyledons. Protein digestibility in isolated intact cells was lower than that of extracted proteins regardless of the thermal load applied whereas inhibition of pancreatic lipase reduces protein digestibility only slightly. The data indicated that the cell wall could contribute to limit protein digestion in soybean tissues; however, it is not an absolute barrier to pancreatic proteases. An accurate design of the milling and cooking process could be instrumental to modulate the digestion kinetics of soybean proteins.
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Claims 5
Claim · model-written summary
Boiling previously milled soybean cotyledons gave particles with the highest protein digestibility, compared with particles milled after cooking and uncooked cotyledons.
- Taxon
- Soybeans
Glycine maxe0 - Organ / stage
- cotyledonse1
- Treatment
- boiling of previously milled cotyledonse1
- Outcome
- Protein digestibilitye1
- Direction
- higheste1
- Comparator
- milling previously cooked cotyledonse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybeans represent the largest source of plant proteins on the planet”
e1“Protein digestibility was the highest in the particles prepared after boiling of previously milled cotyledons compared to particles of the same size obtained by milling previously cooked cotyledons as well as of uncooked cotyledons”
Claim · model-written summary
Protein digestibility of isolated intact soybean cells was lower than that of extracted proteins, regardless of the thermal load applied.
- Taxon
- SoybeansGlycine maxe0
- Treatment
- isolated intact cellse2
- Outcome
- Protein digestibilitye2
- Direction
- lowere2
- Qualifier
- regardless of the thermal load appliede2
- Comparator
- extracted proteinse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybeans represent the largest source of plant proteins on the planet”
e2“Protein digestibility in isolated intact cells was lower than that of extracted proteins regardless of the thermal load applied”
Claim · model-written summary
Inhibition of pancreatic lipase reduces soybean protein digestibility only slightly, compared with digestion without lipase inhibitors.
- Taxon
- SoybeansGlycine maxe0
- Treatment
- inhibition of pancreatic lipasee3
- Outcome
- protein digestibilitye3
- Direction
- reducese3
- Qualifier
- only slightlye3
- Comparator
- without lipase inhibitorse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybeans represent the largest source of plant proteins on the planet”
e3“inhibition of pancreatic lipase reduces protein digestibility only slightly”
e4“digested with and without lipase inhibitors”
Claim · model-written summary
The cell wall of soybean tissue could contribute to limit protein digestion but is not an absolute barrier to pancreatic proteases.
- Taxon
- soybeanGlycine maxe5
- Organ / stage
- cell walle5
- Outcome
- protein digestione5
- Qualifier
- however, it is not an absolute barrier to pancreatic proteasese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The data indicated that the cell wall could contribute to limit protein digestion in soybean tissues; however, it is not an absolute barrier to pancreatic proteases”
Claim · model-written summary
The authors recommend an accurate design of the milling and cooking process to modulate the digestion kinetics of soybean proteins.
- Taxon
- soybeanGlycine maxe6
- Outcome
- An accurate design of the milling and cooking processe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“An accurate design of the milling and cooking process could be instrumental to modulate the digestion kinetics of soybean proteins”
The same questions in other papers
processing · quality: protein · Glycine max (soybean)Positive and negative results
9 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
9 papers more in this group
See all 13 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.