Effect of 1-methylcyclopropene (1-mcp) treatment on postharvest quality and antifungal activity of avocado cv. ‘pollock’ under tropical storage conditions

This paper reports preliminary results on the postharvest quality and storage characteristics of several scab-resistant apple cultivars. `Novaspy', `Moira', `Priscilla', `Novamac', `Nova Easygro', `Prima', and `Macfree' were stored for 3 months at 3C in air or standard controlled atmosphere (CA; 4.5% CO2 and 2.5% O2) in 1990 and for 4 months at 0C in air, standard CA, or low-O, CA (LO; 1.5% CO2 and 1.5% O2) in 1991. `Moira', `Prima', and `Priscilla' had very limited storage life. `Moira' was susceptible to bitterpit, scald, core browning, vascular breakdown, and storage rots. `Prima' was susceptible to core browning and vascular breakdown and had a high incidence of storage rots in air storage. `Priscilla' had several defects as a result of insect damage and was susceptible to bitterpit and scald. `Novaspy' stored very well and had virtually no physiological disorders or storage rots. `Novamac, `Nova Easygro', and `Macfree' developed few storage rots and were essentially at the end of their storage life after 4 months, regardless of storage conditions. Firmness in `Novamac' decreased substantially in all storage atmospheres, while `Nova Easygro' and `Macfree' were susceptible to core browning and scald.

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Postharvest quality of Rambutan (Nephelium lappaceum L.) associated with packaging and storage conditions

Environment Conservation Journal ◽

10.36953/ecj.2018.19301 ◽

2018 ◽

Vol 19 (3) ◽

pp. 1-16 ◽

Cited By ~ 1

Author(s):

Shetty J. Manjunath ◽

◽

P.R. Geethalekshmy ◽

C. Mini ◽

Vijayaraghava Kumar ◽

...

Keyword(s):

Storage Conditions ◽

Postharvest Quality ◽

Nephelium Lappaceum ◽

And Storage

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Impact of blanching and packaging materials on postharvest quality and storability of fresh spinach

Journal of Horticultural Science & Technology ◽

10.46653/jhst2141007 ◽

2021 ◽

pp. 7-12

Author(s):

Waseem Siddique ◽

Mahmood Ul Hasan ◽

Muhammad Suliman Shah ◽

Muhammad Moaaz Ali ◽

Faisal Hayat ◽

...

Keyword(s):

Weight Loss ◽

Ascorbic Acid ◽

Cold Storage ◽

Acid Content ◽

Modified Atmosphere Packaging ◽

Ascorbic Acid Content ◽

Storage Conditions ◽

Poor Quality ◽

Postharvest Quality ◽

Ion Leakage

Spinach is a widely consumed leafy green vegetable, but it exhibits short storage life due to quick loss in moisture contents during postharvest period. The present study was aimed to evaluate the effect of blanching treatment and different types of packaging on spinach quality under cold storage conditions. Fresh spinach after treatment [T0 = control, T1 = blanching, T2 = modified atmosphere packaging (MAP-1, Xtend®), T3 = MAP-2 (Bio-fresh®) and T4 = perforated polyethylene (PE)] application was stored at 4±1 °C and 90±5 % RH for 20 days. Samples were analyzed at the time of harvest (0 day) and then after 3 days interval during storage. MAP treatments performed well and had a positive effect on spinach by maintaining its freshness and quality. Decay, ion leakage and weight loss were observed lower in spinach packed in MAP-1(Xtend®) followed by MAP-2 (Bio-Fresh®) and perforated PE packaging. MA packaging maintained higher ascorbic acid content, chlorophyll, and total antioxidants of spinach during storage. Nevertheless, spinach packed in perforated PE also displayed better results in maintaining quality as compared to control and blanched samples. The maximum weight loss, poor quality, minimum ascorbic acid content with lower consumer acceptability was recorded in control samples. Overall, MAP-1(Xtend®) could be used as a promising technology to maintain the quality of spinach up to 20 days of cold storage.

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Strategies to Preserve Postharvest Quality of Horticultural Crops and Superficial Scald Control: From Diphenylamine Antioxidant Usage to More Recent Approaches

Antioxidants ◽

10.3390/antiox9040356 ◽

2020 ◽

Vol 9 (4) ◽

pp. 356 ◽

Cited By ~ 1

Author(s):

Cindy Dias ◽

Ana L. Amaro ◽

Ângelo C. Salvador ◽

Armando J. D. Silvestre ◽

Sílvia M. Rocha ◽

...

Keyword(s):

State Of The Art ◽

Antioxidant Properties ◽

Storage Conditions ◽

Alternative Methods ◽

Postharvest Quality ◽

Superficial Scald ◽

Horticultural Crops ◽

Horticultural Products ◽

Chemical Strategies

Horticultural crops are vulnerable to several disorders, which affect their physiological and organoleptic quality. For about forty years, the control of physiological disorders (such as superficial scald) in horticultural crops, particularly in fruit, was achieved through the application of the antioxidant diphenylamine (DPA), usually combined with controlled atmosphere (CA) conditions. However, identification of DPA residues and metabolites in treated fruits, associated with their toxicity, banned the use of this antioxidant in Europe. This triggered the urgent need for novel and, ideally, natural and sustainable alternatives, combined with adequate storage conditions to protect cultivars from harmful agents. This review systematizes the state-of-the-art DPA application on several fresh cultivars, such as apples, pears, and vegetables (potatoes, spinach, etc.), as well as the possible mechanisms of the action and effects of DPA, emphasizing its antioxidant properties. Alternative methods to DPA are also discussed, as well as respective effects and limitations. Recent research on scald development molecular pathways are highlighted to open new non-chemical strategies opportunities. This appraisal shows that most of the current solutions have not lead to satisfactory commercial results; thus, further research aimed to understand the mechanisms underlying postharvest disorders and to design sustainable and safe solutions to improve horticultural products storage is needed.

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Response of postharvest quality attributes and cultivars to greenhouse microclimate and storage conditions

Acta Horticulturae ◽

10.17660/actahortic.2020.1275.56 ◽

2020 ◽

pp. 407-414

Author(s):

E.L. Thipe ◽

T.S. Workneh ◽

A.O. Odindo ◽

M.D. Laing

Keyword(s):

Storage Conditions ◽

Quality Attributes ◽

Postharvest Quality ◽

And Storage

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Starch-glyceryl monostearate edible coatings formulated with sodium benzoate control postharvest citrus diseases caused by Penicillium digitatum and Penicillium italicum

Phytopathologia Mediterranea ◽

10.36253/phyto-12528 ◽

2021 ◽

Vol 60 (2) ◽

pp. 265-279

Author(s):

Lourdes SOTO-MUÑOZ ◽

Victoria MARTÍNEZ-BLAY ◽

María B. PÉREZ-GAGO ◽

Asunción FERNÁNDEZ-CATALÁN ◽

Maricruz ARGENTE-SANCHIS ◽

...

Keyword(s):

Antifungal Activity ◽

Sodium Benzoate ◽

Potato Starch ◽

Composite Coatings ◽

Storage Conditions ◽

Penicillium Digitatum ◽

Glyceryl Monostearate ◽

Solution Treated ◽

Citrus Diseases ◽

Green Mould

The curative antifungal activity of edible composite coatings (ECs) based on pregelatinized potato starch-glyceryl monostearate (PPS-GMS) formulated with or without sodium benzoate (SB) to control green mould (caused by Penicillium digitatum) and blue mould (P. italicum) was assessed on ‘Orri’ mandarins, ‘Valencia’ oranges and ‘Fino’ lemons. These fruit were artificially inoculated with P. digitatum or P. italicum, treated by immersion in coating emulsions and compared to uncoated control fruit immersed in water and fruit immersed in 2% SB (w/v) aqueous solution. Treated fruit were then stored at either 20°C or commercial low temperature (5°C for mandarins and oranges, 12°C for lemons). Coatings without SB did not exhibit antifungal activity, whereas coatings containing 2% SB reduced incidence and severity of green and blue moulds, in comparison to the controls, on all citrus species and in all storage conditions, without differing from the aplication of 2% SB alone. For example, incidence reduction on ‘Fino’ lemons was from 99 to 0% after 7 d at 20°C, and from 99 to 30% after 2 weeks at 12°C. None of the treatments was phytotoxic. These results indicate that applications of SB as antifungal ingredient of PPS-GMS based ECs is a promising non-polluting alternative to control Penicillium postharvest decay of citrus, and these ECs are effective substitutes for conventional waxes amended with synthetic fungicides.

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Postharvest Quality and Acceptance of LB8-9 Mandarin as a New Fresh Fruit Cultivar

HortTechnology ◽

10.21273/horttech.17.1.72 ◽

2007 ◽

Vol 17 (1) ◽

pp. 72-77 ◽

Cited By ~ 3

Author(s):

Huating Dou ◽

Fred G. Gmitter

Keyword(s):

Sucrose Concentration ◽

Chilling Injury ◽

Storage Conditions ◽

Fresh Fruit ◽

Soluble Solids ◽

Postharvest Quality ◽

Citrus Paradisi ◽

Fruit Peel ◽

Solids Concentration ◽

Peel Color

A new mandarin cultivar currently designated as selection LB8-9 [‘Clementine’ mandarin (Citrus reticulata) × ‘Minneola’ tangelo, Duncan grapefruit (Citrus paradisi) × Dancy tangerine (C. reticulata)], soon to be released by the University of Florida, Citrus Research and Education Center, Lake Alfred, has been evaluated for postharvest fruit quality and consumer acceptance. Comparisons were made with ‘Sunburst’ and ‘Minneola’ mandarins, which overlap the early and late LB8-9 maturity season, respectively. LB8-9 and ‘Sunburst’ fruit stored 2 weeks at 70 °F developed similar decay percentages (35% to 37%), while ‘Minneola’ showed only 16% decay. Postharvest pitting incidence was zero in LB8-9 and ‘Minneola’ and 3% in ‘Sunburst’ stored at 70 °F and 92% to 96% relative humidity (RH). At the same storage conditions, LB8-9 and ‘Sunburst’ developed better fruit peel color (hue = 60) in comparison with the ‘Minneola’ (hue = 65) mandarin. No differences were found in fruit external peel color (hue angle), chilling injury, or decay among three cultivars stored at 40 °F after 6 weeks. However, juice color was the best in ‘Sunburst’ as indicated by the highest color numbers (44), followed by LB8-9 (40) and ‘Minneola’ (38). Wax-formulation studies indicated that carnauba wax was the best formulation for coating LB8-9 because of low decay incidence, weight loss, and good color. No difference was found in fruit taste panels at day 6 after packing, while a better score of acceptance in the fruit taste panel was recorded for LB8-9 than ‘Minneola’ after 50 d of storage at 40 °F and 92% to 96% RH. LB8-9 fruit had a higher soluble solids concentration [SSC (14.0)] and acid (1.12) than ‘Minneola’ or ‘Sunburst’ mandarins, both having a SSC and acid lower than 11.5 and 0.86, respectively. Sucrose concentration was noticeably higher in the new cultivar (7.14 g/100 mL) than in ‘Minneola’ (5.27 g/100 mL) or ‘Sunburst’ (6.10 g/100 mL). Vitamin C concentration was 42.43 mg/100 mL for the new cultivar, which was considerably higher than ‘Minneola’ (23.27 mg/100 mL) or ‘Sunburst’ (26.25 mg/100 mL). Overall, LB8-9 has good potential as a new fresh fruit for the consumer, and no serious problems were noted with typical postharvest handling.

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Environmental variables in packing houses and their effects on the quality of grapes

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n2p125-130 ◽

2018 ◽

Vol 22 (2) ◽

pp. 125-130 ◽

Cited By ~ 2

Author(s):

Osvaldo C. Vasconcelos ◽

Cristiane Dacanal ◽

Sílvia H. N. Turco ◽

Sergio T. Freitas ◽

Clóvis M. C. Ramos ◽

...

Keyword(s):

Thermal Environment ◽

Thermal Conditions ◽

Storage Conditions ◽

Matter Content ◽

Soluble Solids ◽

Postharvest Quality ◽

Dry Matter Content ◽

Table Grapes ◽

The Ideal

ABSTRACT The aim of this study was to characterize the thermal environment in the selection and packing areas of a packing house and its effects on the quality of table grapes produced in the São Francisco Valley, Brazil. The thermal environment was monitored during the winter and summer seasons. The highest value of air temperature (Tair) and the lowest relative humidity (RH) observed in the packing house were 35 °C and 40.0%, respectively, obtained during the summer, for 8 h. After observing the thermal environment data of the packing house, simulations were performed to evaluate the effect of the ideal environmental storage conditions and observed thermal conditions on the postharvest quality of “Thompson” grapes. Grapes were harvested and stored directly at the ideal temperature and RH of 0 °C and 90%, respectively, or previously exposed to a temperature of 35 °C and RH of 40% for 8 h, the thermal environment observed in the evaluated packing house, followed by storage at 0 °C and 90% RH. Fruit exposure to high temperature and low RH before the ideal storage conditions resulted in higher loss of berry firmness and weight, along with increased soluble solids and dry matter content of rachis and berry. Based on these results, the environmental conditions observed in the packing house result in berry dehydration, which accelerates the loss of fruit quality during storage.

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