Paper · 2026 · Journal of Food and Nutrition Sciences

Effect of Storage Conditions and Soybean Variety on Mineral Composition of Soybean Grains

Rabia Msuya; Frederick Baijukya; Jamal Kussaga; et al.

9
claims
18
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

Post-harvest losses are largely driven by insufficient storage methods, which compromise grain quality and nutritional value, exacerbating food insecurity and economic waste. In Tanzania, most storage-related losses are attributed to the use of inadequate storage materials and practices in general. The study aims to determine the influence of soybean variety (SC Semeki and Uyole soya 2), storage temperature (15°C and 25°C) and material (polypropylene and Purdue Improved Crop Storage (PICS) bags and polypropylene bags) on mineral profile (Calcium, potassium, magnesium, manganese, phosphorus, iron, copper and zinc) for period of 3 months. The results revealed that the highest level of decrease in varieties was observed with SC Semeki (maximum decrease 49%) compared to Uyole soya 2 (38%). With storage material, polypropylene bags (49%) had higher decrease compared to PICS bags (maximum decrease 29%). While, with temperature 25°C (maximum decrease 42%) had higher decrease in comparison to 15°C (maximum decrease 38%). In addition, the relationship between factors and mineral profile (R square) revealed highest variation in iron (99%), copper (98.7%) and calcium (82.8%), while the least with potassium (46.8%). However, general findings in mineral composition during storage showed that the least decrease was with iron (maximum decrease 5%) and the highest was with calcium (maximum decrease 49%). These findings underscore the efficiency of PICS bags and low temperature storage while acknowledging the variation in sensitivity of mineral profile with soybean variety.

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Claims 9

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

SC Semeki had a maximum 49% mineral decrease compared with 38% for Uyole soya 2.

Taxon
SoybeanGlycine maxt0
Material
SC Semekie0
Outcome
decreasee0
Direction
higheste0
Value
49%e0
Qualifier
38%e0
Comparator
Uyole soya 2e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the highest level of decrease in varieties was observed with SC Semeki (maximum decrease 49%) compared to Uyole soya 2 (38%).”

✓ located verbatim in the source · abstract, characters 645–796 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Polypropylene bags had a 49% mineral decrease compared with a maximum of 29% in PICS bags.

Taxon
SoybeanGlycine maxt0
Treatment
polypropylene bagse0
Outcome
decreasee0
Direction
highere0
Value
49%e0
Qualifier
29%e0
Comparator
PICS bagse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“With storage material, polypropylene bags (49%) had higher decrease compared to PICS bags (maximum decrease 29%).”

✓ located verbatim in the source · abstract, characters 797–910 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 25°C, the maximum mineral decrease was 42%, versus 38% at 15°C.

Taxon
SoybeanGlycine maxt0
Treatment
25°Ce0
Outcome
decreasee0
Direction
highere0
Value
42%e0
Qualifier
38%e0
Comparator
15°Ce0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“While, with temperature 25°C (maximum decrease 42%) had higher decrease in comparison to 15°C (maximum decrease 38%).”

✓ located verbatim in the source · abstract, characters 911–1028 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Storage factors explained 99% of variation in iron profile.

Taxon
SoybeanGlycine maxt0
Outcome
irone0
Value
99%e0
Comparator
factorse0

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In addition, the relationship between factors and mineral profile (R square) revealed highest variation in iron (99%), copper (98.7%) and calcium (82.8%), while the least with potassium (46.8%).”

✓ located verbatim in the source · abstract, characters 1029–1223 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Storage factors explained 98.7% of variation in copper profile.

Taxon
SoybeanGlycine maxt0
Outcome
coppere0
Value
98.7%e0
Comparator
factorse0

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In addition, the relationship between factors and mineral profile (R square) revealed highest variation in iron (99%), copper (98.7%) and calcium (82.8%), while the least with potassium (46.8%).”

✓ located verbatim in the source · abstract, characters 1029–1223 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Storage factors explained 82.8% of variation in calcium profile.

Taxon
SoybeanGlycine maxt0
Outcome
calciume0
Value
82.8%e0
Comparator
factorse0

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In addition, the relationship between factors and mineral profile (R square) revealed highest variation in iron (99%), copper (98.7%) and calcium (82.8%), while the least with potassium (46.8%).”

✓ located verbatim in the source · abstract, characters 1029–1223 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Storage factors explained 46.8% of variation in potassium profile.

Taxon
SoybeanGlycine maxt0
Outcome
potassiume0
Value
46.8%e0
Comparator
factorse0

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In addition, the relationship between factors and mineral profile (R square) revealed highest variation in iron (99%), copper (98.7%) and calcium (82.8%), while the least with potassium (46.8%).”

✓ located verbatim in the source · abstract, characters 1029–1223 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Iron showed the least mineral decrease during storage, at a maximum of 5%.

Taxon
SoybeanGlycine maxt0
Outcome
irone0
Direction
least decreasee0
Value
5%e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“However, general findings in mineral composition during storage showed that the least decrease was with iron (maximum decrease 5%) and the highest was with calcium (maximum decrease 49%).”

✓ located verbatim in the source · abstract, characters 1224–1411 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium showed the highest mineral decrease during storage, at a maximum of 49%.

Taxon
SoybeanGlycine maxt0
Outcome
calciume0
Direction
higheste0
Value
49%e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“However, general findings in mineral composition during storage showed that the least decrease was with iron (maximum decrease 5%) and the highest was with calcium (maximum decrease 49%).”

✓ located verbatim in the source · abstract, characters 1224–1411 · show in text ↑
t0

“Effect of Storage Conditions and Soybean Variety”

✓ located verbatim in the source · title, characters 0–48 · show in text ↑