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Exogenous adenosine triphosphate application retards cap browning in Agaricus bisporus during low temperature storage

Author:
Aghdam, Morteza Soleimani, Luo, Zisheng, Jannatizadeh, Abbasali, Farmani, Boukaga
Source:
Food chemistry 2019 v.293 pp. 285-290
ISSN:
0308-8146
Subject:
2,2-diphenyl-1-picrylhydrazyl, Agaricus bisporus, NAD(P)H oxidase (H2O2-forming), adenosine triphosphate, catechol oxidase, cold storage, enzyme activity, gene expression, hydrogen peroxide, melatonin, mushrooms, phenylalanine ammonia-lyase, shikimate dehydrogenase, storage temperature, storage time
Abstract:
Exogenous adenosine triphosphate (ATP) treatment at 0, 250, 500, 750, and 1000 µM retarded cap browning in mushrooms by 0, 34, 26, 51 and 32 %, respectively, during storage at 4 °C for 18 days. Triggering signaling H2O2 accumulation arising from elevating NADPH oxidase enzyme activity during 6 days of storage at 4 °C may be pivotal for promoting shikimate dehydrogenase enzyme activity in mushrooms treated with ATP during 18 days of storage at 4 °C. Promoting melatonin accumulation (390 µg kg−1 FW vs. 160 µg kg−1 FW) in mushrooms treated with ATP during cold storage may attribute to signaling H2O2 accumulation. Higher DPPH scavenging capacity (72 % vs. 65 %) in mushrooms treated with ATP may attribute to higher phenols accumulation arising from higher phenylalanine ammonialyase/polyphenol oxidase enzymes activity concomitant with higher alternative oxidase gene expression during 18 days of storage at 4 °C.
Agid:
6429961