Hebei Yali pear as the test materials，through the determination of fruit browning index and the vari- ation trend of LOX isozymes of pulp，slow and rapid cooling treatment were used for studying browning effect and LOX isozymes activity of different harvest maturity pulp．The results showed that a serious degree of browning was as follows: late harvest fruit ＞ early fruit picking ＞ middle fruit picking，rapid cooling ＞ slow cooling．Therefore， the best storage methods was that mining maturity harvest pear(mid- September) using the slow cooling treatment． On the other hand，was determined with non- denatured PAGE．There were 9 LOX isozyme belts in pulp of Yali．And the rapid and slow cooling for different maturity of Yali LOX isozymes had a certain effect．The expression of LOX isozymes for rapid cooling was higher than that for slow cooling．The order of LOX isozymes expression for different maturity of Yali was late fruit ＞ middle fruit ＞ early fruit．This result was consistented with the determination of fruit browning index．It implicated that LOX enzyme isozymes had a close relationship with pears pulp browning．
LI Xiao-dan
,
SONG Fang-yuan
,
ZHU Wen-qiang
,
LIANG Li-ya
,
YAN Shi-jie
. Study on LOX Isozymes Changes of Yali Pear Pulp after Harvest and Its Relationship with Fruit Browning[J]. Acta Agriculturae Boreali-Sinica, 2013
, 28(4)
: 214
-217
.
DOI: 10.3969/j.issn.1000-7091.2013.04.039
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