3.4. Organic acids
The content of organic acids in button mushroom at different
drying stages of FD and FMVD are shown in Table 4; all of these
organic acids were also found by Li et al. (2014) in Pleurotus
cystidiosus and Agaricus blazei. It could be seen that succinic
acid (38.1–52.3 mg/g dry weight) was the major organic acid,
followed by citric acid (29.7–44.9 mg/g dry weight), malic acid
(25.7–42.0 mg/g dry weight) and tartaric acid (27.1–31.9 mg/g dry
weight).