Abstract
Fresh button mushrooms (Agaricus bisporus) were harvested and treated with a solution of 1.5% CaCl2 + 0.5% citric acid and stored for 16 days at 12 °C. The effects of this treatment on firmness, weight, color, cell wall compositions (cellulose and chitin) and cell wall degrading enzymes (cel1ulase, beta-1, 3 glucanase, chitinase and phenylalanine ammonialyase) were investigated during post-harvest storage. The expressions of major genes (Cel1, Glu1, Chi1 and PAL1) involved in cell wall degradation during post-harvest storage were also monitored. The results revealed that the post-harvest chemical treatment maintained better firmness, weight, color and inhibited cellulase, beta-1, 3 glucanase, chitinase and phenylalanine ammonialyase activities. These findings showed that the down-regulation of cell wall degrading enzymes is a possible mechanism that delays the softening of button mushrooms by the application of combined chemical treatment.
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Abbreviations
- PAL:
-
Phenylalaine ammonialyse
- CK:
-
Control sample
- T:
-
Treated sample
- MAP:
-
Modified atmospheric packing
- w/v :
-
Weight/Volume
- qPCR:
-
Quantitative polymerase chain reaction
- cDNA:
-
Complimentary deoxyribonucleic acid
- RNA:
-
Ribonucleic acid
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Acknowledgments
We are grateful for the financial supports of National Natural Science Foundation of China (Project Number: 31171766) and the Foundation for the Program of Key Innovative Research Team of Zhejiang Province (2009R50036).
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Khan, Z.U., Jiayin, L., Khan, N.M. et al. Suppression of Cell Wall Degrading Enzymes and their Encoding Genes in Button Mushrooms (Agaricus bisporus) by CaCl2 and Citric Acid. Plant Foods Hum Nutr 72, 54–59 (2017). https://doi.org/10.1007/s11130-016-0588-8
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DOI: https://doi.org/10.1007/s11130-016-0588-8