In the present work a diffusion based model was adopted to represent the drying behaviour of pears in a continuous convective drier, taking into consideration the variation of the properties of the pears along drying. The program developed simulated a significant number of situations resultant from the variation of some of the operating conditions. The temperatures tested were 30, 40 and 50 C, ...

Fractionation of pectic polysaccharides from the juice of ripening ;Bartlett' pears (Pyrus communis) gave two general types of polyuronides. The major type was a homogalacturonan (HGA) whose molecular weight decreased upon ripening. The other type comprised heteropolymers composed of various amounts of arabinose, rhamnose, and galactose. Treatment of the major arabinose-containing heteropolymer...

BACKGROUND Pears are exported in large quantities from South Africa, resulting in large revenues. Minimisation of quality losses once the fruit has reached the export destination is as important as following strict export and distribution protocols. Kafirin can form edible films. In this study an edible coating made from 20 g kg(-1) kafirin coating solution was applied as a postharvest treatmen...

In the current study, the processing conditions required for the inactivation of Paenibacillus polymyxa and relevant spoilage microorganisms by high hydrostatic pressure (HHP) treatment on apricot, peach, and pear pieces in sucrose (22°Brix) solution were assessed. Accordingly, the shelf-life was determined by evaluating both the microbiological quality and the sensory characteristics (taste, o...

Pears in early autumn can be harvested with the best quality. Pear farmers sort fruit so that it consumed and sold Therefore automatic detection sorting tools make easier for to pears. This tool fresh rotten using TCS-3200 sensor based on ESP32 microcontroller. The is collected a container will go out onto conveyor. conveyor has length of 60 cm Nema 17 stepper motor moves automatically, placed ...

Customers pay significant attention to the organoleptic and physicochemical attributes of their food with improvement living standards. In this work, near infrared hyperspectral technology was used evaluate one-color parameter, a*, firmness, soluble solid content (SSC) Korla fragrant pears. Moreover, iteratively retaining informative variables (IRIV) least square support vector machine (LS-SVM)...

Previous work by the writers (6) has shown that the ripening rate of newly picked pears can be markedly stimulated by ethylene or gases of similar properties naturally evolved, but fruit treated after being held for prolonged periods of cold storage is not similarly affected. As a tentative explanation of these differences, it was suggested that the effects of ethylene are confined to a pre-rip...

Marino, P., Schicchi, R., Barone, E., Raimondo F. M. & Domina G.: First results on the phenotypic analysis of wild and cultivated species of Pyrus in Sicily. — Fl. Medit. 23: 237-243. 2013. — ISSN: 1120-4052 printed, 2240-4538 online. Phenotypic analysis of Pyrus in Sicily using a set of 19 characters on 71 accessions belonging to 7 species is here reported. Results show a high level of morphol...

The study of the complex web of interactions that link biological molecules in a cell is the subject of interactomics--currently one of the fastest moving fields in molecular biology. The recent completion of high-throughput studies to investigate systematically all the possible interactions in a variety of model organisms has provided unique opportunities to compare interaction networks and as...