Pitting of Grapefruit that Resembles Chilling Injury

Petracek, Peter D.; Wardowski, W. F.; Brown, George E.

doi:10.21273/hortsci.30.7.1422

Cited by 19 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One type of disorder is characterized by the development of darkened sunken areas, or pits, on the rind and can be induced with exposure to either chilling (Obenland et al, 1997;Underhill et al, 1995) or high temperatures (Obenland et al, 1996). Postharvest pitting may also occur in citrus fruit held at warm temperatures following waxing (Petracek et al, 1995). The water status of the peel is believed to be key in the development of this type of pitting as the occurrence of the disorder is enhanced by transfer of fruit from low to high humidity (Alférez and Burns, 2004).…”

Section: Methodsmentioning

confidence: 99%

Chlorophyll Fluorescence Imaging Allows Early Detection and Localization of Lemon Rind Injury following Hot Water Treatment

Obenland¹,

Neipp²

2005

HortSci

View full text Add to dashboard Cite

Green lemons (Citrus limon (L.) Burm.) were imaged for chlorophyll fluorescence (CF) 30 minutes after immersion of the fruit into 55 °C water for 5 minutes to determine if CF could be used to identify areas of hot water-induced rind injury before the appearance of visible symptoms. Fluorescence was variable in intensity over the surface of the rind with defined areas of enhanced fluorescence being present that corresponded in shape and location with visible injury that later developed during 24 hours of storage. Images showing minimum fluorescence (F0) and maximal fluorescence (Fm) provided the best image contrast between injured and noninjured areas of the rind. Total F0 present in the image was closely correlated (r2 = 0.87) with the area of rind injury present following storage. Holding the fruit under conditions of low humidity for 24 h before hot water treatment prevented both the formation of areas of enhanced fluorescence and the corresponding rind injury. Imaging of CF has potential as a means to identify areas of incipient rind injury in citrus to facilitate study of the causal mechanisms of postharvest rind disorders.

show abstract

Section: Methodsmentioning

confidence: 99%

Chlorophyll Fluorescence Imaging Allows Early Detection and Localization of Lemon Rind Injury following Hot Water Treatment

Obenland¹,

Neipp²

2005

HortSci

View full text Add to dashboard Cite

show abstract

“…Postharvest peel pitting or RS is characterised by clusters of collapsed oil glands scattered over the surface of the fruit. This disorder has been closely examined in white grapefruit, Fallgo tangerines, Temple oranges, pink and red grapefruit, Sunburst tangerine, Hamlin, Navel, Valencia and Ambersweet (Petracek et al. , 1995).…”

Section: Introductionmentioning

confidence: 99%

Improving storage performance of Citrus reticulata Blanco mandarins by controlling some physiological disorders

Bajwa

Anjum

2007

Int J of Food Sci Tech

View full text Add to dashboard Cite

Physiological disorders like chilling injury (CI), rind staining (RS) and physiological loss in weight (PLW) limit the postharvest shelf life and reduce the quality of mandarins. Citrus reticulata Blanco mandarins were examined for these physiological disorders by coating with shellac-based wax (SBW) and polyethylene-based wax (PBW). The effect of storage temperature on these disorders was assessed by storing the fruit at 2, 5 and 8°C and at ambient temperatures. The CI, RS and PLW were significantly affected because of the variation in temperature in both crop years (P < 0.01). Mandarins kept at 5°C showed more reduction in PLW, CI and RS than at other temperatures. The SBW was more prone to RS and CI when compared with PBW. Coating mandarins with PBW showed significant reduction in CI because of lower production of ethanol and acetaldehyde. It may be concluded that RS and CI can be effectively controlled by storing fruits at 5°C and coating with polyethylene-based coatings.

show abstract

“…Postharvest peel pitting at nonchilling temperatures is a storage disorder described in a number of citrus cultivars, including ʻNavelinaʼ sweet orange (C. sinensis) (Casas and Garcia-Bataller, 1986;Lafuente and Sala, 2002), ʻNavelateʼ sweet orange (Agusti et al, 2001), ʻMarshʼ grapefruit (Petracek et al, 1995), and ʻFall-gloʼ tangerine (Petracek et al, 1998). Peel pitting diminishes the quality of fruit for fresh market and can cause important economic losses.…”

mentioning

confidence: 99%

“…Peel pitting is characterized by collapse of fruit subepidermal cells. The disorder begins with depressions on the peel and later affects cells surrounding oil glands and adjacent areas of the fl avedo (Agusti et al, 2001;Alferez et al, 2003;Petracek et al, 1995). After a few days, affected cells become more compressed.…”

mentioning

confidence: 99%

“…However, the widespread nature of peel pitting among cultivars and its incidence in different citrus growing regions in the world suggest that there may be common factors causing this disorder. Environmental conditions such as temperature and RH in the fi eld have been proposed to explain the erratic incidence of peel pitting (Agusti et al, 2001;Alferez et al, 2003;Casas and Garcia-Bataller, 1986;Petracek et al, 1995).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Low Relative Humidity at Harvest and Before Storage at High Humidity Influence the Severity of Postharvest Peel Pitting in Citrus

Alférez¹,

Zacarı́as²,

Burns³

2005

jashs

View full text Add to dashboard Cite

Several citrus cultivars including `Marsh' grapefruit (Citrus paradisi Macf.) and `Fallglo' tangerine [Bower citrus hybrid (C. reticulata Blanco × C. reticulata × C. paradisi) × Temple tangor (C. reticulata × C. sinensis L. Osbeck)] are prone to develop postharvest peel pitting at nonchilling temperatures. This disorder is characterized by depressions in flavedo that ultimately affect oil glands. Although the fundamental cause for this disorder has not been well defined, increasing evidence indicates that alteration in peel water status during postharvest handling of fruit plays a major role. `Fallglo' tangerines developed postharvest peel pitting when transferred from low (30%) to high (90%) relative humidity (RH) storage. To determine the number of hours of dehydration prior to storage at high RH sufficient to induce peel pitting in `Marsh' grapefruit and `Fallglo' tangerines, fruit were exposed to low RH conditions for increasing periods of time and then washed, coated with commercial shellac-based wax, and stored at high RH. Only 2 hours of low RH storage were sufficient to induce peel pitting in `Fallglo' and `Marsh' after transfer to high RH. The severity of pitting in `Fallglo' tangerines was greater than in `Marsh' grapefruit. Weight loss of fruit at the end of low RH storage and peel pitting after 3 weeks of storage at high RH were significantly correlated. RH conditions in the field at the time of harvest affected susceptibility to peel pitting in both cultivars. Peel pitting was more severe when fruit were harvested at low field RH than high field RH when followed by treatments that induce peel pitting. The data suggest that harvesting susceptible cultivars at high RH, and minimizing exposure to low RH after harvest, could reduce the commercial impact of postharvest peel pitting.

show abstract

Pitting of Grapefruit that Resembles Chilling Injury

Cited by 19 publications

References 11 publications

Chlorophyll Fluorescence Imaging Allows Early Detection and Localization of Lemon Rind Injury following Hot Water Treatment

Chlorophyll Fluorescence Imaging Allows Early Detection and Localization of Lemon Rind Injury following Hot Water Treatment

Improving storage performance of Citrus reticulata Blanco mandarins by controlling some physiological disorders

Low Relative Humidity at Harvest and Before Storage at High Humidity Influence the Severity of Postharvest Peel Pitting in Citrus

Contact Info

Product

Resources

About