The Underlying Biochemistry of the Effect of Modified Atmosphere and Storage Temperature on Firmness Decrease in Papaya

Lazan, Hamid; Alid, Z.M.; Selamat, Mohd. Kasim

doi:10.17660/actahortic.1993.343.31

Cited by 13 publications

(12 citation statements)

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“…Similar findings for papaya were reported by Lazan et al (1993). The newspaper and banana leaf package also maintained firmness of papaya fruits better than the control.…”

Section: Treatmentssupporting

confidence: 86%

“…The relatively higher firmness of fruits in evaporative cooler might be due to the presence of higher relative humidity and lower temperature which will retard the respiration and transpiration rate of the fruits. According to Lazan et al (1993), the rapid loss in firmness of papaya during ripening at ambient (25°C) temperature is associated closely with increase in activity of polygalacturonase, pectinmethyl esterase and β-galactosidase as well as with depolymerisation of cell wall pectins.…”

Section: Treatmentsmentioning

confidence: 99%

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Effect of packaging materials and storage environment on postharvest quality of papaya fruit

Azene¹,

Workneh

Woldetsadik³

2011

J Food Sci Technol

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This experiment was conducted to assess the effects of packaging materials and storage environments on shelf life of papaya fruit (Carica papaya L.). A factorial combination of five packaging materials and two storage environments using randomized complete block design with three replications were used. The papaya fruits were evaluated for weight loss, percentage marketability, firmness, total soluble solids, pH, titratable acidity, ascorbic acid, reducing sugar and total sugar content. The packaged and cooled fruits remained firmer than unpackaged and evaporatively cooled fruits. Higher chemical compositions were recorded in the control fruits stored under ambient conditions during the earlier times of storage. Packaging and cooling maintained the chemical quality of papaya fruits better than the control sample fruits towards the end of storage periods. The evaporatively cooled storage combined with packaging improved the shelf life of papaya fruits by more than two fold. The polyethylene bag packaging combined with evaporatively cooled storage maintained the superior quality of papaya fruit for a period of 21 days. This integrated agro-technology is recommended for postharvest loss reduction biotechnology in hot regions.

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“…Similar findings for papaya were reported by Lazan et al (1993). The newspaper and banana leaf package also maintained firmness of papaya fruits better than the control.…”

Section: Treatmentssupporting

confidence: 86%

Section: Treatmentsmentioning

confidence: 99%

Effect of packaging materials and storage environment on postharvest quality of papaya fruit

Azene¹,

Workneh

Woldetsadik³

2011

J Food Sci Technol

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“…Similarly, after 20 and 30 days of storage, the maximum fruit firmness was observed at GA 3 -60 ppm treated fruits, whereas the minimum fruit firmness was found at control fruits. The highest retention of fruit firmness, after GA 3 -60 ppm treatment may appear due anti-senescence properties of gibberellic acid (Lazan et al 1993). According to Ben et al (1996) the application of GA to persimmon fruits delays the rate of fruit softening.…”

Section: Methodsmentioning

confidence: 99%

Effect of Post-Harvest Treatments on Enzyme Activity and Quality of Cold Stored Ber Fruit

2012

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Ber (Zizyphus mauritiana Lamk) fruits are perishable in nature and have poor shelf-life. To extend the storage life of ber fruits different post-harvest treatments, like CaCl 2 (0.5, 1.0 and 2.0%), Ca(NO 3 ) 2 (0.5, 1.0 and 2.0%), gibberellic acid (GA 3 ) (20, 40 and 60 ppm) and Bavistin (0.1%) were given to fruits and their effect was studied on the storage life and quality of 'Umran' ber (Zizyphus mauritiana Lamk) fruits under cold storage conditions. Fruits of uniform size and colour were harvested, from healthy plants, and subjected to post harvest dip of different chemicals, before packing in CFB boxes and placed in cold storage (3-5°C and 85-90% RH) They have been evaluated after 10, 20 and 30 days of storage for physiological loss in weight (PLW), firmness, pectin methyl esterase (PME) activity and palatability rating. The PLW increased and fruit firmness decreased during storage at each treatment. The sensory rating increased up to 10 days at all treatments, except control but subsequently it decreased during storage. The increase rate in PME activity was faster, up to 10 days, in untreated fruits, while treated fruits showed slower rise in PME activity, up to 20 days with a decline afterwards. It can be concluded that ber fruits can be stored up to 20 days by post-harvest treatment using GA 3 at 60 ppm, with acceptable quality.

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“…The optimal temperature for Tamar dates is 0 °C for 6 -12 months, with the temperature being the most important tool for maintaining quality of dates . Previously, different authors had observed that increased storage time gradually decreased date palm firmness due to the decay of fruit structure (Lazan et al, 1993; caused by enzymatic activity and other factors such as moisture content and respiration .…”

Section: Discussionmentioning

confidence: 99%

Análisis de la competitividad internacional del dátil tunecino Deglet Noor y estudio del efecto de tratamientos físicos postcosecha en la mortalidad de Ectomyelois ceratoniae y en la calidad del fruto

Amor¹

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In South of Tunisia, the palm dates sector (Phoenix dactylifera L.) is the main socioeconomic resource of oases and has a major role in Tunisian agriculture and the development of the national economy. Tunisian dates occupy the third place in agricultural exports after olive oil and seafood. The major exported cultivar is Deglet Noor, which is mainly produced in by Algeria and Tunisia, with Israel producing a somewhat lesser amount. Tunisia is the world"s leading producer of Deglet Noor, with 190,600 metric tons in 2012, making it a strategic sector within the country. However, the market globalization has had a large impact on the traditional concept of comparative advantage indexes enjoyed by Tunisia with date exports, highlighting the fundamental aspects needed to increase competitiveness in the international scenario. On the other hand, the palm date sector in Tunisia faces several technical problems including insect infestation caused by Ectomyelois ceratoniae or carob moth, which is one of the main postharvest disease pests of date fruits that causes serious economic losses during storage and export of Tunisian palm date fruit Deglet Noor cv. Methyl bromide is the most widely used fumigant on stored dates in several countries, xiii List of abbreviations LIST OF ABBREVIATIONS Ala: Alanine.

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The Underlying Biochemistry of the Effect of Modified Atmosphere and Storage Temperature on Firmness Decrease in Papaya

Cited by 13 publications

References 0 publications

Effect of packaging materials and storage environment on postharvest quality of papaya fruit

Effect of packaging materials and storage environment on postharvest quality of papaya fruit

Effect of Post-Harvest Treatments on Enzyme Activity and Quality of Cold Stored Ber Fruit

Análisis de la competitividad internacional del dátil tunecino Deglet Noor y estudio del efecto de tratamientos físicos postcosecha en la mortalidad de Ectomyelois ceratoniae y en la calidad del fruto

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