to study the effects of postharvest treatments of spermidine and putrescine on storage quality of ‘hayward’ kiwifruit, the present research was performed. in november 2010, fruits were hand picked from fajr orchardist corporation in sari and transported to postharvest physiology laboratory. fruits were dipped for 4 minutes in either spermidine or putrescine solutions (0.5, 1.0 and 1.5 mm), and ...

The laser air-puff method was investigated for non-destructive firmness measurements on kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson cv. Hayward) and apricot (Prunus armeniaca L. cv. CluthaGold). The method involves delivering a sharp puff of air onto a stationary fruit whilst recording the resulting surface deformation with a laser displacement sensor. At a 65-kPa maxi...

an investigation was carried out to study the effect of sole heat treatment and sole 1- methyl cyclo propine (1- mcp) as well as in combination on storage quality of strawberries. the factorial experiment was conducted using a completely randomized design of three replications. treatments included heat treatment at two levels (room teperature, 45°c for 3h) and 1- mcp at two levels (0, 1µl l-1)....

Epidemiological studies suggest that consumption of fruit rich in phenolic compounds is associated with health-protective effects due to their antioxidant properties. For these reasons quality evaluation has become an important issue in fruit industry and in breeding programs. Phytochemical traits such as total phenolics, flavonoids, anthocyanins, L-ascorbic acid, sugar content and relative ant...

The main objective of this work was to assess the effectiveness of salicylic acid (SA), calcium chloride (CaCl2) or sodium bicarbonate (NaHCO3), and packaging on some qualitative properties of apricot fruit during cold storage. The experiments were conducted using a completely randomized design as factorial, with three replicates. Fruits were dipped in SA (0.1 or 0.5 mM), CaCl2 (1 or 2%) or NaH...

Objectives: The overall objective of the project was to develop a novel light-based sensing technique to assess internal quality (firmness and sugar content or soluble solids content) of apples. Specific objectives were to: 1. Investigate a new sensing method, using hyperspectral and multispectral imaging, for quantifying the absorption and scattering properties of apple fruit; 2. Develop mathe...

Melting (MF) and non melting flesh (NMF) peaches differ in their final texture and firmness. Their specific characteristics are achieved by softening process and directly dictate fruit shelf life and quality. Softening is influenced by various mechanisms including cell wall reorganization and water loss. In this work, the biomechanical properties of MF Spring Crest's and NMF Oro A's exocarp and...

One major problem with frozen fruits is a loss of texture. Therefore this study investigated the effects of the freezing process on the freezing profiles, texture, and drip loss of apple, mango, cantaloupe, and pineapple fruit samples. All frozenthawed fruits varied in these three properties because of diversity in the fresh fruits. Mango had the highest total soluble solids content and the low...