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Effect of Modified Atmosphere, Vacuum and Polyethylene Packaging on Physicochem...
Fernandes, Luana; Pereira, Ermelinda; Fidalgo, Maria do Céu; Gomes, Auryo; Ramalhosa, ElsaThere is a commercial requirement to extend the shelf-life of chestnuts. This study aimed to determine the effect of different packages (modified atmosphere packaging (MAP) (0.3% O2 and 32% CO2), polyethylene (PE) and vacuum (VAC)) on physicochemical and microbial properties of raw chestnuts during storage (1, 2, 3 and 6 months). The results showed that the storage time and packaging type influence chestnuts pr...
Physicochemical properties and microbial control of chestnuts (Castanea sativa)...
Fernandes, Luana; Pereira, Ermelinda; Fidalgo, Maria do Céu; Gomes, Auryo; Ramalhosa, ElsaChestnuts (Castanea sativa Mill.) were subjected to three different coatings - chitosan, alginate and whey protein - and stored under refrigeration (0 °C, 90% HR) during 6 months. The shell color parameters a*, b* and C showed a tendency to decrease in all samples, while L* increased in alginate coated chestnuts. Application of coatings had no effect on moisture, water activity (aw), as well as in the color ins...
Physico-chemical and sensory characterization of fruit jams of S. Tomé and Prín...
Ramalhosa, Elsa; Sousa, Agostinho V.; Fernandes, Luana; Delgado, Teresa; Fidalgo, Maria do Céu; Pereira, José A.Introduction: São Tomé and Príncipe has a wide variety of fruit trees, being most of the fruits consumed in fresh. In certain periods of the year, fruits are available at significant amounts; however, it is not common to use the surplus of those fruits. Thus, this excess may be used in the preparation of other fruit based products (ex. jams), in order to increase product diversity and allow the annual consumpti...