𝔖 Bobbio Scriptorium
✦   LIBER   ✦

PH—Postharvest Technology: Development of a Drop Damage Index of Fruit Resistance to Damage

✍ Scribed by Paolo Menesatti; Graziella Paglia

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
430 KB
Volume
80
Category
Article
ISSN
0021-8634

No coin nor oath required. For personal study only.

✦ Synopsis

The work presents a methodology (instrumental and statistical) that synthesized a single numerical value for the degree of impact sensitivity of the fruit to impact damage. The drop damage index (DDI) is the result of a series of statistical steps, based on a multiple linear regression (MLR) model. This is determined for each fruit (species or cultivar) considering the contribution of di!erent fruit and impact (direct drop on rigid support) variables to the damage. It represents the maximum drop height (in mm) for which the probability of damage of the cultivar is equal to 5%. The calculation procedure of the DDI is based on the observed values for the variable considered in the MLR model. Experiments have been conducted on four di!erent fruits (apple, pear, apricot and peach) to determine speci"c values of the DDI. The conclusion is that the DDI can be used for measuring sensitivity or resistance to impact damage of the fruits.

📜 SIMILAR VOLUMES

PH—Postharvest Technology: Non-linear Mu
PH—Postharvest Technology: Non-linear Multiple Regression Models to estimate the Drop Damage Index of Fruit
✍ P. Menesatti; G. Paglia; S. Solaini; A. Zanella; R. Stainer; C. Costa; M. Cecche 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 208 KB

The aim of the study was to determine the best reliable statistic model among linear and non-linear multiple regressions, to calculate an index of the fruit bruising susceptibility estimation that is the drop damage index (DDI). The DDI is determined by a specific numerical procedure where quantity

PH—Postharvest Technology: A Descriptor
PH—Postharvest Technology: A Descriptor for Damage Susceptibility of a Population of Produce
✍ A.F. Bollen; N.R. Cox; B.T. Dela Rue; D.J. Painter 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 223 KB

In the handling of fruits and vegetables the susceptibility of the product to mechanical damage is of primary concern. In the past, researchers have generally described the bruise susceptibility of a product in terms of its average bruise size (volume or area) as a function of energy (impact or abso

PH—Postharvest Technology: Mechanical Be
PH—Postharvest Technology: Mechanical Behaviour of Apples, and Damage during Sorting and Packaging
✍ L. Ragni; A. Berardinelli 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 153 KB

In sorting and packaging lines, fruits are submitted to impacts that can involve alterations to the #esh. For this study, impact measurements were taken at critical points on Italian machines at a domestic packing house. These impacts were then reproduced in the laboratory to analyse the damage and