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Shelf Life Evaluation of Bartlett Pears in Retort Pouches
Author(s) -
KLUTER R.A.,
NATTRESS D.T.,
DUNNE C.P.,
POPPER R.D.
Publication year - 1996
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1996.tb10982.x
Subject(s) - food science , shelf life , retort , partial least squares regression , flavor , pear , chemistry , ascorbic acid , sensory analysis , mathematics , botany , biology , statistics , organic chemistry
Retort pouch pears in syrup were developed for a military ration. Processing variables were: syrup pH (4.0 and 3.5) and processing temperature (88°C and 96°C). Periodic sensory and biochemical/instrumental analyses were conducted during storage at 4, 21 and 38°C. pH had the most effect on quality measures. Bivariate correlations from Partial Least Squares (PLS) analysis indicated high positive relationships between the first PLS factor and sensory and analytical determinations: color quality, overall quality, pear flavor intensity, Hunter L, ascorbic acid and sucrose. Pears at pH 4.0, processed at either temperature, met minimum military shelf life requirements at 21° or 38°C.