71A-22

A. G. F. VAN DENDER, Centro de Pesquisa & Desenvolvimento de Laticínios, Instituto de Tecnologia de Alimentos, Av. Brasil, 2880, Campinas, 13070-178, Brazil, K. Yotsuyanagi, Laboratório de Análises Físicas e Sensoriais - LAFISE, Instituto de Tecnologia de Alimentos - ITAL, Avenida Brasil, 2880, Campinas - SP, 13070-178, Brazil, V. D. Anjos, Laboratório de Análises Físicas, Estatísticas e Sensorias, Campinas - SP, 13073001, and C. G. Oliveira, Campinas, Brazil.

The objective of this study was to evaluate the performance of three different packagings in preserving the overall quality characteristics of requeijão cremoso manufactured at Tecnolat/ITAL and stored at 10 °C, both in the presence and absence of light. The packagings studied were: (1) VAF (glass container in the shape of a regular household glass sealed with an easy-open tinplate cap); (2) PP (plastic polypropylene cups heat-sealed with aluminum foil/sealant); and (3) Bcoex (coextruded plastic squeeze tube). Texture Profile Analysis (TPA) was performed at 10 °C to characterize the product and monitor product properties throughout 90 days storage for the product stored in dark conditions and 33 days for the product exposed to light. The analyses performed on the requeijão samples one day after manufacture included pH, total dry matter, fat content, fat on the dry matter, and total protein. In addition, the pH value of the cheese samples was determined at regular intervals throughout the respective storage periods investigated. In general, the products were found to present good stability in terms of pH and the texture parameters investigated. The packages did not significantly influence the texture properties of the processed cheese (requeijão) samples during the storage periods studied and indicate that the final choice as to which packaging type should be preferred may be made on the basis of other factors such as quality, ease of use, cost and availability. (Research Project funded by FAPESP)

Session 71A, Dairy Foods: General
8:30 AM - 12:00 PM, Tuesday AM Room Hall I-2

2005 IFT Annual Meeting, July 15-20 - New Orleans, Louisiana