The effects of 1-methylcyclopropene (1-MCP) treatment on storage characteristics of heart-shaped cabbage were investigated by principal component analysis, partial least square regression analysis, path analysis and correlation analysis. The results showed that 1-MCP could delay the decrease of chlorophyll, glucosinolates, sulforaphane and folate, and inhibit the accumulation of malondialdehyde (MDA) and nitrite. Ethylene production and respiratory intensity were also reduced in 1-MCP-treated cabbage. Additionally, 1-MCP treatment maintained higher ascorbic acid, total phenol and antioxidant capacity in tissues. Moreover, principal component analysis indicated that 1-MCP had effects on chlorophyll, total glucosinolates, folic acid, ascorbic acid, DPPH· scavenger activity, ·OH scavenger activity, MDA, and nitrite. The partial least square analysis displayed that the chlorophyll of cabbage was positively correlated with folic acid, ascorbic acid, DPPH· scavenger activity, total glucosinolates, ·OH scavenger activity, and negatively correlated with MDA. Furthermore, the results of path analysis manifested that DPPH scavenger activity affected the chlorophyll level of cabbage mainly through its direct action and indirect action of folic acid, ascorbic acid and ·OH scavenger activity. In conclusion, the effect of 1-MCP on postharvest storage characteristics of heart-shaped cabbage was mainly related to its ability to maintain tissue antioxidant capacity.
HU Huali
,
ZHAO Huanhuan
,
LUO Shufen
,
ZHOU Hongsheng
,
LI Jianbin
,
LI Pengxia
. Evaluation the effect of 1-methylcyclopropene on storage characteristic of heart-shaped cabbage based on multivariate statistical analysis[J]. Food and Fermentation Industries, 2020
, 46(16)
: 208
-214
.
DOI: 10.13995/j.cnki.11-1802/ts.024177
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