Effect of functionalized hybrid chitosan/gum Arabic bilayer coatings with lemongrass essential oil on the postharvest disease control and the physicochemical properties of papaya (Carica papaya) fruits

Dharini, V.; S, Periyar Selvam; Jayaramudu, J.; Sadiku, Rotimi

doi:10.1016/j.sajb.2023.07.053

Cited by 4 publications

(5 citation statements)

References 62 publications

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“…(2018a). The substantial amount of geraniol, an oxygenated monoterpenoid from lemongrass essential oil, is responsible for antimicrobial activity, as they are capable of penetrating the cell wall and breaking the phospholipid bilayer of the bacterial cell membranes (Dharini et al ., 2023). Similar results were observed for biocomposite films reinforced with CNCs and montmorillonite clays as filler materials Perumal et al .…”

Section: Resultsmentioning

confidence: 99%

“…Control treatment groups had the highest b * values, indicating the rapidness in the ripening process compared to other treatment groups, especially the fruits packaged with PVA/HNT/LGEO and CNC had the least increase in the b * values. Here, the packaging layer created a semi‐permeable membrane that controlled the enzyme activity and other metabolic alterations, thereby curbing the photooxidation process (Dharini et al ., 2023). The results were in accordance with the findings by Parven et al .…”

Section: Resultsmentioning

confidence: 99%

“…Here, CNC at different concentrations (2.5%, 5%, 7.5% v/v) and LGEO (0.05% v/v) were added to the PVA/HNT solutions and stirred for 1 h to form the active nanocomposite solution. The concentration of LEGO was fixed based on the previous research findings done at our laboratory, and the results were published (Dharini et al ., 2023). Glycerol was added as a plasticiser to the above mixture and stirred continuously.…”

Section: Methodsmentioning

confidence: 99%

“…The postharvest fungal pathogens from papaya fruits were isolated previously in the laboratory (Dharini et al ., 2023). The spore suspension of Lasiodiplodia theobromae and Rhizopus stolonifer was prepared and filtered to remove the mycelial fragments.…”

Section: Methodsmentioning

confidence: 99%

“…The fruit colours were measured on the equatorial region by using a Colour Quest XE, Hunter colourimeter (A60‐1011‐610, Hunter Lab, Reston, VA, USA). The ‘ b *’ value in the reading, gives the yellowness of the fruit as the colour is prone to change with the ripeness of the fruit (Dharini et al ., 2023).…”

Section: Shelf‐life Studies On Stored Papaya Fruitsmentioning

confidence: 99%

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PVA/essential oil‐based active food packaging films functionalised with halloysite nanotubes and cellulose nanocrystals as filler materials for the shelf‐life extension of papaya fruits

Biswal,

Sellamuthu

et al. 2023

Int J of Food Sci Tech

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SummaryThis study investigates the development of Poly‐vinyl alcohol (PVA) and essential oil‐based biocomposite films incorporating halloysite nanotubes (HNT) and cellulose nanocrystals (CNC) as reinforcement materials for the packaging of papaya fruits to extend their postharvest shelf‐life. The fabrication process involves the dispersion of filler materials within the PVA polymer matrix, followed by the casting of the films using the solvent‐evaporation technique. The CNC isolated from the papaya peel exhibited rod‐like structures that were confirmed in the morphological studies. The films reinforced with HNT and CNC (5 wt%) had enhanced mechanical properties and exhibited a tensile strength of ~64.40 MPa. The findings of the study demonstrate that the fruits packed with biocomposite materials containing HNTs and CNCs as reinforcements and lemongrass essential oil as active material showed better performance when compared to the control. The edible quality and the storage life of the papaya fruits (TSS, firmness and weight loss %) under investigation, were extended by 14 days at ambient temperature (25 ± 2 °C) and relative humidity (80 – 85 %), thus improving the postharvest shelf‐life of harvested papayas. Therefore, PVA‐based active packaging film prepared with lemongrass essential oil, HNTs and CNCs has great potential for the preservation of papaya during postharvest storage.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Shelf‐life Studies On Stored Papaya Fruitsmentioning

confidence: 99%

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PVA/essential oil‐based active food packaging films functionalised with halloysite nanotubes and cellulose nanocrystals as filler materials for the shelf‐life extension of papaya fruits

Biswal,

Sellamuthu

et al. 2023

Int J of Food Sci Tech

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Gum Arabic-incorporated thymol/salicylic acid composite coatings control grey mould and brown rot in ‘Angeleno’ plums

Jenneker,

Silué,

Julia Meitz-Hopkins

et al. 2024

Eur J Plant Pathol

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This study explores the antifungal efficacy of salicylic acid and thymol against Botrytis cinerea and Monilinia laxa, the main pathogens affecting stone fruit in South Africa. Antifungal properties of thymol and salicylic acid and their influence on the shelf life of “Angeleno” plums were investigated. Gum Arabic composite coatings infused with salicylic acid and thymol were further investigated, with fludioxonil as a positive control. In vitro, results showed complete inhibition (100%) of M. laxa and B. cinerea by thymol at 0.25 mM and 1 mM, respectively. Salicylic acid did not achieve complete pathogen inhibition The highest inhibition percentage, 38%, was recorded at 2 mM. In vivo assessments showed that while fludioxonil was highly effective, Gum Arabic coatings containing 2 mM and 4 mM salicylic acid closely matched its performance in decay prevention, reducing decay rates to 8%. Furthermore, Gum Arabic coatings significantly reduced shrivel incidence and maintained firmness of the plums over a 15 d shelf-life period. This study highlights thymol as a potent antimicrobial agent, especially against grey mould and brown rot in plums, while incorporating salicylic acid into GA coatings effectively reduces disease incidence without compromising fruit quality. These findings suggest a promising alternative to conventional fungicides in managing grey mould and brown rot in plums.

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Techno-functional characteristics, and potential applications of edible coatings: A comprehensive review

Patil,

Shams,

Dash

2023

Journal of Agriculture and Food Research

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Effect of functionalized hybrid chitosan/gum Arabic bilayer coatings with lemongrass essential oil on the postharvest disease control and the physicochemical properties of papaya (Carica papaya) fruits

Cited by 4 publications

References 62 publications

PVA/essential oil‐based active food packaging films functionalised with halloysite nanotubes and cellulose nanocrystals as filler materials for the shelf‐life extension of papaya fruits

PVA/essential oil‐based active food packaging films functionalised with halloysite nanotubes and cellulose nanocrystals as filler materials for the shelf‐life extension of papaya fruits

Gum Arabic-incorporated thymol/salicylic acid composite coatings control grey mould and brown rot in ‘Angeleno’ plums

Techno-functional characteristics, and potential applications of edible coatings: A comprehensive review

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