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. 2019 Jan 8;9:3229. doi: 10.3389/fmicb.2018.03229

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Copyright © 2019 Pagliano, Ventorino, Panico, Romano, Pirozzi and Pepe.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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pH and concentration of lactose, lactic acid, and ethanol (A), and concentration of acetic acid and propionic acid (B) in liquid samples collected from biodigesters at different times of incubation.