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Texture evolution of "Amaretti" cookies during storage

Piga, Antonio <1965- > and Catzeddu, Pasquale and Farris, Stefano and Roggio, Tonina and Sanguinetti, Anna Maria and Scano, Efisio Antonio (2005) Texture evolution of "Amaretti" cookies during storage. European Food Research and Technology, Vol. 221 (3-4), p. 387-391. eISSN 1438-2385. Article.

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DOI: 10.1007/s00217-005-1185-5


The results of a study on texture evolution during 35 days of storage of amaretti, a typical Italian cookie, packaged in two different ways are reported. Amaretti cookies were wrapped in polyvinylchloride (PVC) film or aluminium foil (ALL), to simulate two different permeability conditions and stored at controlled temperature and humidity. Evolution of texture (such as hardness) and aw were tested instrumentally by a texture analyser and a hygrometer, respectively. Texture was assessed by a cut and puncturing test. Indices for hardening were the area under the curve (N mm) and gradient (N/mm) for the puncturing test and maximum force (N) for the cut test. Both textural tests showed significantly higher hardening of PVC cookies, compared to the ALL cookies. The latter retained good sensorial properties at the end of the storage period, although their internal structure changed from soft and moist to mealy, while the PVC cookies were no longer edible only 10 days after baking. aw values decreased and increased in PVC and ALL lots, respectively. The results suggest that hardening may be explained by water loss in PVC and moisture redistribution in ALL.

Item Type:Article
ID Code:1916
Uncontrolled Keywords:Cookies, hardening, structure, sugar crystallisation, texture analysis
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/15 Scienze e tecnologie alimentari
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > POLARIS, Parco scientifico e tecnologico della Sardegna, Alghero
002 Altri enti e centri di ricerca del Nord Sardegna > Porto Conte Ricerche, Alghero
001 Università di Sassari > 01 Dipartimenti > Scienze ambientali agrarie e biotecnologie agro-alimentari
Publisher:Springer Berlin / Heidelberg
Additional Information:Pubblicato poi come contributo in congresso in: Technological innovation and enhancement of marginal products: proceedings, 6-8 April 2005, Foggia, Italy. Foggia, Claudio Grenzi. pp. 422-429.
Deposited On:18 Aug 2009 10:06

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