Quantitative determination of flesh mealiness in peach [Prunus persica L. (Batch.)] through paper absorption of free juice

Infante, R.; Meneses, C.; Rubio, R; Seibert E.

Abstract

A simple and rapid method was developed for quantitative determination of juiciness in peach flesh based on the absorption of free juice with ordinary absorbent paper after a flesh sample is squeezed by two metallic rolling cylinders. Juiciness data were compared with trained panel determinations on three peach cultivars kept at 4 °C and 90% RH for 7, 14 and 21 d plus a ripening period at 20 °C and 65% RH until the flesh reached 19.6 ± 9.2 N. There was a high correlation between panel judgment and paper absorption (r2 = 0.75 in 'Elegant Lady', 0.77 in 'O'Henry' and 0.93 in 'Ross'). A sub-sample of the juiciest and the mealiest fruit also were sorted after 14 and 21 d in cold storage. 'Ross', a non-melting peach cultivar, did not develop flesh mealiness during any evaluation period. During storage, there was a reduction in juiciness reaching 15% less after 21 d. Mealy fruit were exclusively observed with melting cultivars exposed to cold storage. The proposed method for determining juice content is easily executed and shows a high association with human perception of juiciness and mealiness in peach. © 2008 Elsevier B.V. All rights reserved.

Más información

Título según WOS: Quantitative determination of flesh mealiness in peach [Prunus persica L. (Batch.)] through paper absorption of free juice
Título según SCOPUS: Quantitative determination of flesh mealiness in peach [Prunus persica L. (Batch.)] through paper absorption of free juice
Título de la Revista: POSTHARVEST BIOLOGY AND TECHNOLOGY
Volumen: 51
Número: 1
Editorial: ELSEVIER SCIENCE BV
Fecha de publicación: 2009
Página de inicio: 118
Página final: 121
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0925521408001890
DOI:

10.1016/j.postharvbio.2008.06.006

Notas: ISI, SCOPUS