TY - JOUR
T1 - Browning evaluation of ready-to-eat apples as affected by modified atmosphere packaging
AU - Soliva-Fortuny, R. C.
AU - Grigelmo-Miguel, N.
AU - Odriozola-Serrano, I.
AU - Gorinstein, S.
AU - Martín-Belloso, O.
PY - 2001
Y1 - 2001
N2 - The color and polyphenol oxidase (PPO) activity of fresh-cut Golden delicious apples were evaluated throughout cold storage under modified atmospheres. The shelf life of cut apples was extended to several weeks, especially when an initial atmosphere of 90.5% N2 + 7% CO2 + 2.5% O2 and plastic pouches of 30 cm3/cm2·bar·24 h were used. Under these conditions, a maximum 62% PPO activity depletion was observed. In all cases, the faster the initial PPO activity decays, the less the color changes. A fractional conversion first-order model was proposed for predicting color changes in minimally processed apples. Browning was better described through lightness (L*) (kL = 0.017 - 0.07 day-1) and color difference (ΔE*) values (kΔE = 0.015 - 0.073 day-1), which fitted the model with enough accuracy.
AB - The color and polyphenol oxidase (PPO) activity of fresh-cut Golden delicious apples were evaluated throughout cold storage under modified atmospheres. The shelf life of cut apples was extended to several weeks, especially when an initial atmosphere of 90.5% N2 + 7% CO2 + 2.5% O2 and plastic pouches of 30 cm3/cm2·bar·24 h were used. Under these conditions, a maximum 62% PPO activity depletion was observed. In all cases, the faster the initial PPO activity decays, the less the color changes. A fractional conversion first-order model was proposed for predicting color changes in minimally processed apples. Browning was better described through lightness (L*) (kL = 0.017 - 0.07 day-1) and color difference (ΔE*) values (kΔE = 0.015 - 0.073 day-1), which fitted the model with enough accuracy.
KW - Apples
KW - Enzymatic browning
KW - Minimal processing
KW - Modified atmosphere packaging
KW - Polyphenol oxidase
UR - http://www.scopus.com/inward/record.url?scp=0034831056&partnerID=8YFLogxK
U2 - 10.1021/jf010190c
DO - 10.1021/jf010190c
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C2 - 11513648
AN - SCOPUS:0034831056
SN - 0021-8561
VL - 49
SP - 3685
EP - 3690
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
IS - 8
ER -