Analysis of Cell Wall Quantity and Cuticle Thickness of Apple Fruits and Relations with some of their Rheological Properties
C. Camps, P. Guillermin, M. Chevalier, 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 97
2005
บทคัดย่อ
Analysis of Cell Wall Quantity and Cuticle Thickness of Apple Fruits and Relations with some of their Rheological Properties
Thickness of apple cuticle and cell wall quantity in epidermis region, expressed in percent of image pixels, were measured for three apple cultivars: Gala (Ga), Elstar(EI) and Smoothee (Sm). Cuticle zone (CQ) was thicker forSm with 32%, EI and Ga had similar CQ with 22% and 19%, respectively. CQ could be linked to limited mass losses during storage: Smshowed the most important CQ and less mass losses compared to Ga and EI Cell wall quantity (CWQ) allowed classifying the three studded cultivars as following: Ga > EI >Sm with 63%, 59% and 56%, respectively (percent of image pixels). CWQ was also measured on fruits stored 14 and 28 days in cooled room (CR) and 14 days in shelf life (SL). Relations between CWQ and rheological properties of apples, measured by penetrometry, were calculated. CWQ showed highest correlation with strength (Fp) forGa (R2=0.77), stiffness (E*) and Flesh firmness (Ff) for EI with correlation coefficient values of R2=0.94 and R2=9.87, respectively. Sm didn't show any correlation.