This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Molina-Delgado, D. Articles by Recasens, I. Search for Related Content Social Bookmarking                         What's this?

Relationship between Acoustic Firmness and Magness Taylor Firmness in Royal Gala and Golden Smoothee Apples

Post-harvest Area, UdL-IRTA. Rovira Roure 191, 25198 Lleida, Spain, diana.molina{at}hbj.udl.es, Department of Horticulture, Botany and Gardening University of Lleida. Rovira Roure 191, 25198 Lleida, Spain

S. Alegre

IRTA. Experimental Station of Lleida, Rovira Roure 191, 25198 Lleida, Spain

J. Puy

Chemistry Department, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain

I. Recasens

Post-harvest Area, UdL-IRTA. Rovira Roure 191, 25198 Lleida, Spain, Department of Horticulture, Botany and Gardening University of Lleida. Rovira Roure 191, 25198 Lleida, Spain

This study aimed to evaluate apple firmness measured using both the penetrometer and acoustic methods. The methodologies were applied to Royal Gaya and Golden Smoothee apples (Malus domestica. Borkh) harvested from 12 different orchards in Catalonia (Spain), on six different dates, and over three seasons. The relationship between firmness and physicochemical quality parameters was analyzed at harvest and post-harvest. The results obtained showed a noticeable correlation between Magness Taylor firmness and acoustic measurements in Royal Gala, but no correlation was found for Golden Smoothee. Fruit variety and storage had a clear influence on correlations between the two measurements. Measurements of Magnes Taylor and acoustic firmness seemed to correspond to different physical properties. Acoustic measurements seemed to be a good tool for evaluating changes in tissue firmness during long-term storage, especially for Golden Smoothee apples. The maturity of the fruit seemed to play a more important role in the measurement of Magnes Taylor firmness than in the measurement of acoustic firmness for the Royal Gaya variety.

Key Words: Royal Gala • Golden Smoothee • apples • acoustic firmness • Magnes Taylor firmness • post-harvest • cold storage

Food Science and Technology International, Vol. 15, No. 1, 31-40 (2009)
DOI: 10.1177/1082013208100507


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?