Paper · 2023 · Scientific African

Comparative assessment of three storage methods for preserving maize grain to enhance food security post COVID-19

Emmanuel Arthur; George Obeng-Akrofi; Edward A. Awafo; et al.

9
claims
16
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by

Abstract

Cold storage is expensive for smallholder farmers and seed processors in developing countries. Smallholder farmers continue to resort to traditional storage methods such as polypropylene (PP) bags for maize grain storage. They often dose the grains with chemicals to preserve them. However, hermetic bags have proven to provide superior protection to grains during storage without chemical treatment. With the advent of the COVID-19 virus which distorted many food systems across continents, stakeholders in the grain industry need to adopt better systems to reduce post-harvest food loss and improve food security. In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months. The results showed that the hermetic bag maintained the moisture content (MC) of the stored grains with 0.40% variations from the initial MC of 13% at the end of the storage period compared to 0.70% and 1.10% for grains stored under cold storage and in PP bags, respectively. Grain damage after the 4th month of storage in the hermetic bag had only increased by 0.40% from an initial 13.3% before storage compared to an increase of 6% for cold storage, which was attributed to unstable power during the storage period, and 4.30% for grains stored in the PP bag. Carbon dioxide concentration in the hermetic bag was maintained at about 11% throughout the storage period indicating low microbial activity. The hermetic bag technology was identified as the best option for quality preservation during storage of maize grain over the other methods, and its adoption by smallholder farmers in Ghana should be considered.

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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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The hermetic bag held maize grain moisture content to a 0.40% variation from the initial 13% at the end of storage, compared with cold storage and PP bags.

Taxon
maizeZea mayse0
Treatment
hermetic bage1
Outcome
moisture content (MC) of the stored grainse1
Direction
maintainede1
Value
0.40%e1
Qualifier
variations from the initial MC of 13%e1
Comparator
cold storage and in PP bagse1

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e1

“the hermetic bag maintained the moisture content (MC) of the stored grains with 0.40% variations from the initial MC of 13% at the end of the storage period compared to 0.70% and 1.10% for grains stored under cold storage and in PP bags”

✓ located verbatim in the source · abstract, characters 857–1093 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize grain stored under cold storage showed a 0.70% moisture content variation over the storage period.

Taxon
maizeZea mayse0
Treatment
cold storagee1
Outcome
moisture contente1
Value
0.70%e1

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e1

“the hermetic bag maintained the moisture content (MC) of the stored grains with 0.40% variations from the initial MC of 13% at the end of the storage period compared to 0.70% and 1.10% for grains stored under cold storage and in PP bags”

✓ located verbatim in the source · abstract, characters 857–1093 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize grain stored in PP bags showed a 1.10% moisture content variation over the storage period.

Taxon
maizeZea mayse0
Treatment
PP bagse1
Outcome
moisture contente1
Value
1.10%e1

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e1

“the hermetic bag maintained the moisture content (MC) of the stored grains with 0.40% variations from the initial MC of 13% at the end of the storage period compared to 0.70% and 1.10% for grains stored under cold storage and in PP bags”

✓ located verbatim in the source · abstract, characters 857–1093 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain damage in the hermetic bag increased by only 0.40% after the fourth month of storage, compared with cold storage.

Taxon
maizeZea mayse0
Treatment
hermetic bage2
Outcome
Grain damagee2
Direction
increasede2
Value
0.40%e2
Qualifier
after the 4th month of storagee2
Comparator
cold storagee2

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e2

“Grain damage after the 4th month of storage in the hermetic bag had only increased by 0.40% from an initial 13.3% before storage compared to an increase of 6% for cold storage, which was attributed to unstable power during the storage period, and 4.30% for grains stored in the PP bag”

✓ located verbatim in the source · abstract, characters 1109–1393 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain damage under cold storage increased by 6%, which was attributed to unstable power during storage.

Taxon
maizeZea mayse0
Treatment
cold storagee2
Outcome
Grain damagee2
Direction
increasee2
Value
6%e2
Qualifier
attributed to unstable power during the storage periode2
Comparator
hermetic bage2

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e2

“Grain damage after the 4th month of storage in the hermetic bag had only increased by 0.40% from an initial 13.3% before storage compared to an increase of 6% for cold storage, which was attributed to unstable power during the storage period, and 4.30% for grains stored in the PP bag”

✓ located verbatim in the source · abstract, characters 1109–1393 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain damage in PP bags increased by 4.30% over storage, compared with the hermetic bag.

Taxon
maizeZea mayse0
Treatment
PP bage2
Outcome
Grain damagee2
Direction
increaseinferrede2
Value
4.30%e2
Comparator
hermetic bage2

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e2

“Grain damage after the 4th month of storage in the hermetic bag had only increased by 0.40% from an initial 13.3% before storage compared to an increase of 6% for cold storage, which was attributed to unstable power during the storage period, and 4.30% for grains stored in the PP bag”

✓ located verbatim in the source · abstract, characters 1109–1393 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Carbon dioxide concentration in the hermetic bag was maintained at about 11% throughout storage, indicating low microbial activity.

Taxon
maizeZea mayse0
Treatment
hermetic bage3
Outcome
Carbon dioxide concentratione3
Value
about 11%e3
Qualifier
indicating low microbial activitye3

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In this study, maize grain quality, nutritional content and viability were compared under three storage methods (PP bags with Phostoxin treatment, cold storage, and hermetic bag) over a storage period of four months”

✓ located verbatim in the source · abstract, characters 616–831 · show in text ↑
e3

“Carbon dioxide concentration in the hermetic bag was maintained at about 11% throughout the storage period indicating low microbial activity”

✓ located verbatim in the source · abstract, characters 1395–1535 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The hermetic bag technology was identified as the best option for preserving maize grain quality over the other methods.

Taxon
maizeZea mayse4
Treatment
hermetic bag technologye4
Outcome
quality preservation during storagee4
Direction
best optione4
Comparator
the other methodse4

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The hermetic bag technology was identified as the best option for quality preservation during storage of maize grain over the other methods, and its adoption by smallholder farmers in Ghana should be considered”

✓ located verbatim in the source · abstract, characters 1537–1747 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Adoption of the hermetic bag technology by smallholder farmers in Ghana should be considered.

Taxon
maizeZea mayse4
Treatment
hermetic bag technologye4
Outcome
adoption by smallholder farmers in Ghanae4
Setting
Ghanae4

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The hermetic bag technology was identified as the best option for quality preservation during storage of maize grain over the other methods, and its adoption by smallholder farmers in Ghana should be considered”

✓ located verbatim in the source · abstract, characters 1537–1747 · show in text ↑

poly(propylene) · pest · Zea mays (maize)Positive and negative results

10 papers: 2 positive, 8 negative or no effect

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

  1. negative
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

cold · pest · Zea mays (maize)Positive and negative results

9 papers: 2 positive, 7 negative or no effect

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

  1. positive
  2. positive
  3. no effect

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.