State of the art on strawberry quality evaluation
Biochemical and physical tests
- Total phenolic content
- Total soluble solids (°Brix)
- Titratable acidity (% of citric acid)
- Total antioxidant capacity
- Total anthocyanin content
- Total Flavonoid content
- Vitamin C determination
- Firmness (N)
- Colour (internal-external)
- pH
Sensorial test
Static
- Descriptive analysis (DA) method:
It’s a descriptive method used with high expert panel to describe and quantify sensory attributes in a consistence and repeatable way (Stone, et al., 1974).
Fig. 1
Example of spider plot deriving from the results of Descriptive Analysis (DA).
- Check-all-that apply (CATA) method:
This method is based on the selection of multiple attributes or sentences (10-40 terms/sentence) from which the consumers have to choose those that based on the own perception describe in the better way the strawberry analyzed (Lado et al. 2010).
Fig. 2
Example of Check-all-that-apply (CATA) method during execution on a computer screen.
- Napping method:
This method is based on the difference/similarities principle to assess the strawberry. The consumers following their own individual criteria divide the product analyzed through the differences or similarities and describe it with their own language (Oliver et al., 2018a).
Fig. 3
Example of Napping method during execution on a computer screen
Dynamic
- Temporal dominance of sensation (TDS) method:
It’s a multidimensionality method that investigates in which way the dominant sensory attributes change during the mastication (Pineau et al., 2009).
Fig. 4
Example of plot showing the TDS method results
Cultivars Through the countries
.
Tab .1 Overview of the main cultivars cultivated and consumed through the countries (López-Aranda, J.M. et al, 2011; Wójcik-Seliga, J. et al, 2017).
A cura di Nico Lippi e Giulia Maria Daniele, CNR – Istituto per la BioEconomia.
Bibliography
- Cervantes, L., Ariza, M.T., Miranda, L., Lozano, D., Medina, J.J., Soria, C. and Martínez-Ferri, E. (2020). Stability of Fruit Quality Traits of Different Strawberry Varieties under Variable. Environmental Conditions- Agronomy.
- Contessa, C., Mellano, M.G., Beccaro, G.L., Giusiano, A., Botta, R. (2013). Total antioxidant capacity and total phenolic and anthocyanin contents in fruit species grown in Northwest Italy. Scientia Horticulturae
- Lado, J., Vicente, E., Manzzioni, A. and Ares, G. (2010). Application of a check-all-that-apply question for the evaluation of strawberry cultivars from a breeding program. J Sci Food Agric. 90:2268–75.
- López-Aranda, J.M., Soria, C., M. Santos, B., Miranda, L., Domínguez, P. & Medina-Mínguez, J.J. (2011). Strawberry Production in Mild Climates of the World: A Review of Current Cultivar Use. International Journal of Fruit Science.
- Pineau, N., Schlich, P., Cordelle, S., Mathonni`ere, C., Issanchou, S., Imbert, A., Koster, E.P. (2009). Temporal dominance of sensations: Construction of the tds curves and comparison with time–intensity. Food Quality and Preference, 20, 450–455.
- Sabatino, L., De Pasquale, C., Aboud, F., Martinelli, F., Busconi, M., D’anna, E., Panno, S., Iapichino, G., D’anna, F., (2017). – Properties of New Strawberry Lines Compared with Well-Known Cultivars in Winter Planting System Conditions. Not Bot Horti Agrobo.
- Stone, H., Sidel, J., Oliver, S., Woolsey, A., & Singleton, R. C. (1974). Sensory evaluation by quantitative descriptive analysis. Food Technology, 28, 24–34.
- Wang, J., Yue, C., Gallardo, k., McCracken, V., Luby, J. and McFerson, J. (2017). What Consumers Are Looking for in Strawberries: Implications from Market Segmentation Analysis. Agribusiness, 33: 56–69.
- Wójcik-Seliga, J., Studnicki, M., Wójcik-Gront, E.(2017). Evaluating economic value of 23 strawberry cultivars in the climatic conditions of central Europe. Acta Sci. Pol. Hortorum Cultus, 16(2), 11-19