Effect of Modified Atmosphere Packaging on Endogenous Formaldehyde Content of Shiitake Mushroom (Lentinus Edodes) during Preservation Period
The study research the relationship between the formaldehyde content and physical changes in shiitake mushroom with different modified atmosphere packaging. The results show that the formaldehyde content of shiitake mushroom was significantly positively correlated with the enzyme activity of GGT and the CS lyase (correlation coefficient r=0.777 and 0.700), while the enzyme activity of CGT and the CS lyase was significantly positively correlated with the respiration intensity (r=0.503 and 0.767, respectively). MAP can inhibit enzyme activity, control formaldehyde content, and delay the protein degradation and the increase of membrane permeability. In the first 12 days storage, the average formaldehyde levels of MAP was 13.00% lower than CK (P<0.01). The average moisture and protein content of MAP(l) (7% CO2) samples was 2.23% and 7.81% higher than CK, respectively. The membrane permeability of MAP (1) was 27.24% lower than CK, and the relative content of the three sulfur-containing flavor compounds was 16.23% lower than CK. The results showed that the quality of MAP (1) samples in the preservation period was the best of all.
modified atmosphere packaging (MAP)shiitake mushroomendogenous formaldehydephysiology and biochemistry
NETL
NSTL
万方数据
维普
