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This is to certify that your paper entitled «Evaluation of Low-Cost Carbon Sources for the Production of Bacterial Cellulose by Gluconacetobacter xylinus (PTCC ۱۷۳۴)» was indexed with 6 pages, in the CIVILICA citation database, code COI:OCONF03_031, after evaluation and approval of the referees of the "The 3th international conference of new horizons in chemical engineering and biotechnology with a focus on commercialization held in Tehran 2025.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.