Research on energy metabolism, lignification and veil opening in postharvest white mushroom (<i>Agaricus bisporus</i>) under high O<sub>2</sub>/CO<sub>2</sub> controlled atmospheres (HOC-CA)
DOI:
https://doi.org/10.5073/JABFQ.2017.090.022Keywords:
Agaricus bisporus, high O2, controlled atmosphere, energy, lignification, veil openingAbstract
White mushroom is an abundant nutritional but perishable product; veil opening and stipe lignification are two of the obvious characte-ristics of senescence. In order to study the relationship between the energy charge, veil opening and lignification of the white mushroom, high O2/CO2 controlled atmospheres (HOC-CA) were utilized at 2±1 °C. The treatments comprised the following 100% O2, 80% O2 + 20% CO2, 60% O2 + 40% CO2, 40% O2 + 60% CO2 respectively, with air as the control. In this study, sensorial and physiological qualities, adenosine triphosphate (ATP) content, energy charge level, lignin content, phenylalanine ammonia-lyase (PAL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POD) activity were studied. The optimal condition 80% O2 + 20% CO2 treatment inhibited both respiration rate and veil opening of the mushroom; suppressed PAL, POD and CAD activity. It also retarded the reduction of ATP level, energy charge level, and growth of lignin content. Exogenous ATP had an effect on inhibiting veil opening and lignification. These results indicated that there was a negative correlation between the ATP content, cap opening and stipe lignification. Appropriate HOC-CA maintained high energy, preserved the white mushroom well and extended the storage time to 24 days.Downloads
Published
Issue
Section
License
From Volume 92 (2019) on, the content of the journal is licensed under the Creative Commons Attribution 4.0 License. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes are labelled.
The copyright of the published work remains with the authors. If you want to use published content beyond what the CC-BY license permits, please contact the corresponding author, whose contact information can be found on the last page of the respective article. In case you want to reproduce content from older issues (before CC BY applied), please contact the corresponding author to ask for permission.