Measurement of Textural Properties of Apples and their Prediction by near Infrared Reflectance Spectroscopy
C. Camps, P. Guillermin, J.C. Mauget and D. Bertrand
Book of Abstract. Information & technology for sustainable fruit & vegetable production, The 7th Fruit, Nut and Vegetable Production Engineering Symposium, 12-16 September 2005, Monpellier, France. Page 103
2005
บทคัดย่อ
Measurement of Textural Properties of Apples and their Prediction by near Infrared Reflectance Spectroscopy
In this trial we studied the ability of penetrometry and uniaxial compression for measuring texture changes of three apple cultivars during cooled room (CR) and shelflife (SL) storage. A large set of piresical parameters has been extracted and analyzed. Finally, because these tests remained destructive for fruits we attempted to predict the most efficient physical parameters by near infrared reflectance spectroscopy which is a non destructive method. Experimental Young modulus parameter (E*) from penetrometryand Fc1,Grad1, Fc2 from uniaxial compression were the most efficient ones to describe storage effectwhatever the apple cultivar. Some other parameters as Fp, Dp were only correlated to one of the three studied cultivar, showing the differences existing between cultivars and the complementarily ofparameters. This complementarily lights the composite nature offruit texture and justify a multifactorial approach. NIRS showed a good ability to predict E* whatever the cultivar with R value of 0.91, 0.85, 0.83 and RMSECV values of 0.95, 0.74, 1.02 N.mm-1 for Ga, Sm and El cultivar, respectively. parameters from compression test showed poor correlation with NIRS data.