Apples should be quickly and correctly detected from their surroundings for the apple harvesting robot. The basic color feature was extracted from FuJi apple tree images and analyzed by the statistical analysis method. Accordingly, a new apple detection method was proposed to position the centroid of picking apples. The color difference was used to segment apples from their surroundings. Then t...

Physical, chemical and sensory changes of cut apple (cv. Jonagored) stored in the dark at 4 C were evaluated. Colour was found to be the critical parameter for this product. Apple cubes underwent severe surface browning primarily during the initial days of storage. The shelf-life of cut apple was therefore very limited, to three days maximum. Sensory analyses and objective quality evaluations o...

In terms of the quality of minimally processed fruit, flesh browning is fundamentally important in the development of an aesthetically unpleasant appearance, with consequent off-flavours. The development of browning depends on the enzymatic action of the polyphenol oxidase (PPO). In the 'Golden Delicious' apple genome ten PPO genes were initially identified and located on three main chromosomes...

The advent of the Web has raised different searching and querying problems. Keyword matching[1] based querying techniques used by various search engines, return thousands of Web documents for a single query, and most of these documents are generally are unrelated to the users’ required information. Queries submitted to a search engine may have ambiguous meanings. For example, depending on the u...

Fungicides are the most common agents used in postharvest treatment of fruit and are the most effective against blue mould, primarily caused by Penicillium expansum. Alternatively, blue mould can be treated with antagonistic microorganisms naturally occurring on fruit, such as the bacterium Gluconobacter oxydans. The aim of this study was to establish the antifungal potential of the G. oxydans ...

acid also increases on storage it is not-yet possible to say in which form the vitamin is primarily synthesized. The nature of the changes underlying the phenomenon is still obscure. The evidence strongly suggests, but does not absolutely prove, that the vitamin is formed from a chemically related precuesor during storage. The increase of vitamin C in an apple of about 22 g. during 7 months of ...

During experiments characterizing and identifying proteins from controlled atmosphere-stored apple and peach fruit, we optimized methods for the extraction and two-dimensional electrophoresis (2-DE) of fruit proteins, using commercially available immobilized pH gradient strips for the first dimension. The method is relatively rapid with minimal handling of small amounts of sample, and has been ...

Apple ring rot disease, caused by Botryosphaeria dothidea (Moug. ex. Fr) Ces. et de Not., is one of the most important diseases on apple fruits. In this study, strain 9001 isolated from healthy apple fruits from an infested orchard was evaluated for its biocontrol activity against apple ring rot in vitro and in vivo. Strain 9001 showed obvious antagonistic activity to B. dothidea YL-1 when plat...

The residue dynamics and risk assessment of prochloraz and its metabolite 2,4,6-trichlorophenol (2,4,6-TCP) in apple under different treatment concentrations were investigated using a GC-ECD method. The derivatization percent of prochloraz to 2,4,6-TCP was stable and complete. The recoveries of prochloraz and 2,4,6-TCP were 82.9%-114.4%, and the coefficients of variation (CV) were 0.7%-8.6% for...

the biocontrol activity of two isolates of candida membranifaciens against grey mold of apple fruit caused by botrytis mali and their ability to induce biochemical defense responses in apple tissue were investigated. apple fruit (malus domestica) wounds were inoculated with 50 µl yeast suspension (1 × 107 cfu/ml) of c. membranifaciens followed 4 h later by 20 µl of conidial suspension of b. mal...