Quality changes during ripening of plums (Prunus domestica L.)

Usenik, V.; Kastelec, Damijana; Veberič, Robert; Štampar, Franci

doi:10.1016/j.foodchem.2008.04.057

Cited by 111 publications

(119 citation statements)

References 20 publications

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“…The measurements showed that 'Toptaste', 'Topfi ve' and the control cultivars had medium fruit size, while the smallest fruit were produced by 'Jojo' (20.7 g). The fruit of the latter were considerably smaller than the 30-47 g size reported in the literature (Blazek and Pisteková, 2009;Gadze et al, 2011;Usenik et al, 2008). On the other hand, these authors reported a fruit weight of 27-28 g for 'Topfi ve', which produced much larger fruit in the present experiments, especially in 2012, while the data reported for 'Toptaste' were similar to those found in the present work.…”

Section: Evaluation Of Fruit Qualitysupporting

confidence: 80%

“…Better results were recorded for 'Topfi ve' than those reported by Blazek andPisteková (2009) (19.7 Brix%), Jacob (2007) (18 Brix%) and Gadze et al (2011) (19.4 Brix%). The lowest soluble solids content was found for 'Jojo' (16.3 Brix%), which was less than that obtained by Blazek and Pisteková (2009) and Gadze et al (2011), but more than that detected by Usenik (2008). In the case of 'Tophit' the present results were similar to those published by Gadze et al (2011) andJacob (1998 In 2013 the lowest titratable acidity (0.36%) was found for 'Topend Plus' and the highest for 'Cacanska rodna' (1.01%).…”

Section: Evaluation Of Fruit Qualitycontrasting

confidence: 59%

See 1 more Smart Citation

Evaluation of the Production Traits and Fruit Quality of German Plum Cultivars

Molnár¹,

Ladányi²,

Kovács³

2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Section: Evaluation Of Fruit Qualitysupporting

confidence: 80%

Section: Evaluation Of Fruit Qualitycontrasting

confidence: 59%

Evaluation of the Production Traits and Fruit Quality of German Plum Cultivars

Molnár¹,

Ladányi²,

Kovács³

2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…In contrast, fruit compression strenght, though not a common index used by the plum industry, showed an association with I AD (Table 1). According to Usenik et al (2008), the cultivar has a significant influence on fruit weight, SSC, firmness, total acid content, total phenols and anthocyanins in European plums. Ripening resulted in increased fruit weight and SSC and decreased flesh firmness and total acid content.…”

Section: Resultsmentioning

confidence: 99%

Determination of harvest maturity of D'Agen plums using the chlorophyll absorbance index

et al. 2011

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The objective determination of the optimal harvest date for plums intended either for industrial processing or for consumption as fresh fruit is a fundamental concern of the fruit industry. A portable visible/near infrared (Vis/NIR) spectroscopic device was used to sort D'Agen plums harvested around the traditional commercial harvest date. The chlorophyll absorbance index was found to be capable of segregating plums into classes of maturity according to various concentrations of soluble solids and fruit compression strenght values. Fruits with a chlorophyll absorbance index value of less than 1.59 showed no differences in flesh firmness. Plums harvested with chlorophyll absorbance index values of 1.20-1.29 had a fruit compression strenght of 1.25 N and a soluble solids concentration of 23.3%. Both of these values correspond to adequate thresholds for harvesting plums for industrial purposes. The chlorophyll absorbance index may be valuable in allowing the identification of high-quality plums either for fresh consumption or industrial processing.

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“…In our study, each fruit was at a different state of ripeness: those towards higher µ a values were less ripe and more firm, while those in the lower µ a value range were riper and less firm (firmness data not shown here). As the ripening progressed towards the melting phase, the cell-wall collapsed due to enzyme mediated alterations leading to concentration of vacuolar anthocyanin in the fruit flesh (Usenik et al, 2008), which was marked by increase in flesh a* value and µ a 670 value (Fig. 2e).…”

Section: Resultsmentioning

confidence: 99%

Optical Absorption and Scattering Phenomena in 'Jubileum' Plums in Relation to Their Colour Properties

Jacob¹,

Vangdal²,

Torricelli

et al. 2010

Acta Hortic.

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Absorption and scattering of laser light pulse passing through the fruit determine among others, the optical properties of the product. Efforts have been made in the recent past to utilize innovative techniques such as time-resolved reflectance spectroscopy (TRS) to study the quality aspects of different fruit such as nectarines. These optical properties have been well related to firmness, sugars, acids and other quality attributes. TRS measurements were performed on 'Jubileum' plums at two different wavelengths: 670 nm and 758 nm. The fruit were harvested in Norway and brought to Italy under protected conditions. After sorting the fruit by size, TRS measurements were made and the fruit were randomized for different examinations of quality aspects. It was observed that the absorption coefficient (µ a ) increased for both wavelengths as ripening progressed towards the melting stage of the fruit. The µ a values at 670 nm were higher than those at 758 nm. The higher rate in the µ a was distinguishable from the third day onwards as the fruit ripened. Similarly, it was interesting to note that the internal colour measured after destructing the fruit related well with the TRS absorption coefficient (µ a ), i.e., a decrease in the CIE L* (towards darker region) and b* (towards blue) value along with an increase in a* (towards red) from third day of storage.

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Quality changes during ripening of plums (Prunus domestica L.)

Cited by 111 publications

References 20 publications

Evaluation of the Production Traits and Fruit Quality of German Plum Cultivars

Evaluation of the Production Traits and Fruit Quality of German Plum Cultivars

Determination of harvest maturity of D'Agen plums using the chlorophyll absorbance index

Optical Absorption and Scattering Phenomena in 'Jubileum' Plums in Relation to Their Colour Properties

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