Paper · 2023 · PLoS ONE

Physical and chemical properties of aloe-vera coated guava (Psidium guajava) fruit during refrigerated storage

Debashis Kumar Dutta Roy; Md. Asaduzzaman; Tanny Saha; et al.

6
claims
11
verbatim quotes
9
citations
3
research areas
✓
Open access · cc-by

Abstract

Guavas (Psidium guajava) are regarded as one of the most perishable commodities, primarily owing to their climacteric characteristics and heightened metabolic processes, resulting in a faster rate of softening. Edible coating is a natural ingredient that is employed as an alternative to extend the shelf life of fruits while also providing bioactive and functional compounds. Aloe vera gel is predominantly used for this purpose due to its widespread availability. Various concentrations of aloe vera-based coating formulation (25%, 50%, 75%, and 100%) were applied on fresh whole guava by dipping method. The guava was stored at a refrigerated condition (4°C) and weight loss, color, firmness, vitamin C, total phenol, and pH change were observed in this research. A significant effect of aloe vera coating was found over the storage period. Aloe vera treatment lowered the weight loss, and retarded the texture and color compared to the control sample throughout the 28 days of storage. Vitamin C and total phenol content remined high at 141.4 mg/100g and 219.6 mg GAE/100g respectively in a 100% aloe vera coated sample after 28 days of storage compared to the control. Among 25%, 50%, 75%, and 100% aloe vera coated sample, 100% aloe vera was found to be the best coating material to prevent physical changes in fresh guava.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aloe vera coating lowered guava weight loss versus control over 28 days.

Treatment
Aloe vera treatmente0
Outcome
weight losse0
Direction
lowerede0
Qualifier
28 days of storagee0
Comparator
control samplee0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Aloe vera treatment lowered the weight loss, and retarded the texture and color compared to the control sample throughout the 28 days of storage.”

✓ located verbatim in the source · abstract, characters 844–989 · show in text ↑
t0

“guava”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aloe vera coating retarded guava texture change versus control over 28 days.

Treatment
Aloe vera treatmente0
Outcome
texturee0
Direction
retardede0
Qualifier
28 days of storagee0
Comparator
control samplee0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Aloe vera treatment lowered the weight loss, and retarded the texture and color compared to the control sample throughout the 28 days of storage.”

✓ located verbatim in the source · abstract, characters 844–989 · show in text ↑
t0

“guava”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aloe vera coating retarded guava color change versus control over 28 days.

Treatment
Aloe vera treatmente0
Outcome
colore0
Direction
retardede0
Qualifier
28 days of storagee0
Comparator
control samplee0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Aloe vera treatment lowered the weight loss, and retarded the texture and color compared to the control sample throughout the 28 days of storage.”

✓ located verbatim in the source · abstract, characters 844–989 · show in text ↑
t0

“guava”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Vitamin C remained high at 141.4 mg/100g after 28 days with 100% coating.

Treatment
100% aloe vera coated samplee0
Outcome
Vitamin Ce0
Direction
highe0
Value
141.4 mg/100ge0
Qualifier
28 days of storagee0
Comparator
controle0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Vitamin C and total phenol content remined high at 141.4 mg/100g and 219.6 mg GAE/100g respectively in a 100% aloe vera coated sample after 28 days of storage compared to the control.”

✓ located verbatim in the source · abstract, characters 990–1173 · show in text ↑
t0

“guava”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Total phenol content remained high at 219.6 mg GAE/100g after 28 days with 100% coating.

Treatment
100% aloe vera coated samplee0
Outcome
total phenol contente0
Direction
highe0
Value
219.6 mg GAE/100ge0
Qualifier
28 days of storagee0
Comparator
controle0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Vitamin C and total phenol content remined high at 141.4 mg/100g and 219.6 mg GAE/100g respectively in a 100% aloe vera coated sample after 28 days of storage compared to the control.”

✓ located verbatim in the source · abstract, characters 990–1173 · show in text ↑
t0

“guava”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The 100% coating best prevented physical changes in fresh guava.

Treatment
100% aloe verae0
Outcome
physical changese0
Direction
beste0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“100% aloe vera was found to be the best coating material to prevent physical changes in fresh guava.”

✓ located verbatim in the source · abstract, characters 1229–1329 · show in text ↑

Aloe vera · quality: phytochemicals · Psidium guajava (guava)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

Aloe vera · quality: postharvest · Psidium guajava (guava)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 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.