PREPARATION OF B-CYCLODEXTRIN-THIABENDAZOLE-PIPERONYL BUTOXIDE SUPRAMOLECULAR COMPLEX AND ITS ACTIVITY AGAINST BLUE AND GREEN MOULD DECAY ON INOCULATED SATSUMA FRUIT.

The supramolecular complex of β-cyclodextrin-thiabendazole-piperony butoxide (βCD-TBZ/PBO) was prepared and its structure was characterized by 1H NMR. Additionally, the antifungal activity of βCD-TBZ/PBO was investigated in comparison with the commercially available thiabendazole (TBZ) fungicide by in vitro tests and on artificially inoculated 'Okitsu' satsuma fruit dipped in water at 20 degrees C or at 50 degrees C to control postharvest blue (Penicillium italicum) and green mould (P. digitatum).

Simultaneous amperometric detection of ascorbic acid and antioxidant capacity in orange, blueberry and kiwi juice, by a telemetric system coupled with a fullerene- or nanotubes-modified ascorbate subtractive biosensor.

Four fullerenes- or nanotubes-modified graphite sensor-biosensor systems (SBs), coupled with a dual-channel telemetric device, based on an ascorbate oxidase (AOx) biosensor, were developed for on line simultaneous amperometric detection of ascorbic acid (AA) and antioxidant capacity in blueberry, kiwi and orange juice. Fullerene C60 (FC60), fullerene C70 (FC70), single-walled carbon nanotubes (SWCN) and multi-walled carbon nanotubes (MWCN) increased the sensitivity of graphite toward AA and phenols 1.2, 1.

Development and characterization of an ascorbate oxidase-based sensor-biosensor system for telemetric detection of AA and antioxidant capacity in fresh orange juice.

A new carbon ascorbate oxidase-based sensor-biosensor system (SB) was coupled to a dual-channel telemetric device for online simultaneous electrochemical detection of ascorbic acid (AA) and antioxidant capacity in Hamlin, Sanguinello, and Moro orange varieties. The electrocatalytic performances of the SB were investigated by cyclic voltammetry and amperometric techniques. The phenol composition of orange juice of each variety, and the cyclic voltammetries of the most represented phenols, were provided.

Combined effects of potassium sorbate, hot water and thiabendazole against green mould of citrus fruit and residue levels.

Postharvest treatments of potassium sorbate only controlled recently established infections of Penicillium digitatum on Femminello siracusano lemons but did not confer any persistent protection. The loss of efficacy of potassium sorbate to control green mould decay was related to its irregular deposition on the fruit surface, as revealed by environmental scanning electron microscopy of oranges, and to the brief persistence of potassium sorbate residues. When treatment was done at 53°C, the co-application of potassium sorbate with thiabendazole reduced thiabendazole residues in Moro and Sanguinello oranges, compared to thiabendazole treatment alone.

Residue levels, persistence and effectiveness of imazalil against a resistant strain of penicillium digitatum when applied in combination with heat and sodium bicarbonate.

Green and blue molds, respectively caused by Penicillium digitatum Sacc., and P. italicum Wehmer, are the most important postharvest diseases of citrus fruit Postharvest management of these pathogens is mainly based on the application of thiabendazole (TBZ) or imazalil (IMZ) fungicides.