ISHS Acta Horticulturae 484: Eucarpia Symposium on Fruit Breeding and Genetics
DESCRIPTIVE SENSORY ANALYSIS AND CORRESPONDENCE ANALYSIS TO SELECT APPLES FOR FRESH AND PROCESSING MARKETS |
| Authors: | C. Deslauriers, K. A. Sanford, K. B. McRae |
| Keywords: | Malus pumila, quality evaluation, breeding |
| Abstract:
Descriptive Sensory Analysis (DSA) is a technique used to describe and quantify the sensory properties of food products. Trained panellists develop precise descriptors of the attributes then quantify the degree to which these attributes are present in the product under consideration; the choice of appropriate reference material ensures that terms are used consistently. The technique was adopted in an apple breeding programme, to evaluate fruit for the fresh market and for processing. For fresh fruit, ten visual properties, nine flavour attributes and nine texture characteristics were defined. With these, it became possible to employ several panellists for evaluations, and to create a database of informative descriptions which can be used to rapidly identify seedlings with diverse fruit specifications. For fruit processed as frozen pies, where ‘Northern Spy’ is the accepted industry standard, the technique was combined with Residual Maximum Likelihood (REML) and Correspondence analyses to select among genotypes with improved production characteristics those most similar to the target product. Correspondence analysis portrayed the association among the twenty-two sensory terms and thirty genotypes in three dimensions, and identified several genotypes with processing potential. | |
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