| http://www.w3.org/ns/prov#value | - Then, it started to decline three days later and stabilized between 6.15 and 7.75, maintaining a neutral condition, which fell in the scope of the suitable pH.pH of two chemically treated specimens was both higher than the others, particularly between 8.9 and 9.2 and between 11.3 and 11.8 for the urea and sodium hydroxide-treated groups, respectively. pH of control group was kept falling down and
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