PMID- 34064575 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210605 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 14 IP - 10 DP - 2021 May 11 TI - Whey as an Alternative Nutrient Medium for Growth of Sporosarcina pasteurii and Its Effect on CaCO(3) Polymorphism and Fly Ash Bioconsolidation. LID - 10.3390/ma14102470 [doi] LID - 2470 AB - Whey in large quantities can cause environmental problems when discarded, because it reduces dissolved oxygen and aquatic life. Nonetheless, it could be used as an easily available and economical alternative to reduce culture medium costs in microbially induced calcium carbonate precipitation (MICP). In this work, a native Sporosarcina pasteurii was isolated and then cultured by using different proportions of whey (W) in nutrient broth (NB). The solids were characterized by XRD, FT-IR, TGA, and SEM. The potential applications in bioconsolidation were also studied. Whey concentration was directly related to CaCO(3) production. Higher whey concentrations reduced calcium carbonate purity to nearly 80%. All experiments showed calcite and vaterite fractions, where a whey increment in the media increased calcite content and decreased vaterite content, causing a decrease in crystal size. MICP improved compressive strength (CS) in sand and fly ash. The best CS results were obtained by fly ash treated with 25 W-75 NB (37.2 kPa) and sand with 75 W-25 NB (32.1 kPa). Whey changed crystal polymorphism in biogenic CaCO(3) production. Material bioconsolidation depends on the CaCO(3) polymorph, thus fly ash was effectively bioconsolidated by crystallization of vaterite and sand by crystallization of calcite. FAU - Chaparro, Sandra AU - Chaparro S AD - School of Chemical Sciences, Faculty of Sciences, Pedagogical and Technological University of Colombia, 150001 Tunja, Colombia. FAU - Rojas, Hugo A AU - Rojas HA AUID- ORCID: 0000-0003-3906-4522 AD - School of Chemical Sciences, Faculty of Sciences, Pedagogical and Technological University of Colombia, 150001 Tunja, Colombia. FAU - Caicedo, Gerardo AU - Caicedo G AUID- ORCID: 0000-0003-2320-0980 AD - School of Chemical Sciences, Faculty of Sciences, Pedagogical and Technological University of Colombia, 150001 Tunja, Colombia. FAU - Romanelli, Gustavo AU - Romanelli G AD - Research and Development Centre on Applied Sciences "Dr. Jorge Ronco" (CCT-La Plata-CONICET, CIC-PBA), National University of La Plata, 1900 La Plata, Argentina. FAU - Pineda, Antonio AU - Pineda A AD - Departamento de Quimica Organica, Universidad de Cordoba, Ctra NNal IV-A, Km 396, E-14014 Cordoba, Spain. AD - Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia. FAU - Luque, Rafael AU - Luque R AD - Departamento de Quimica Organica, Universidad de Cordoba, Ctra NNal IV-A, Km 396, E-14014 Cordoba, Spain. AD - Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia. FAU - Martinez, Jose J AU - Martinez JJ AUID- ORCID: 0000-0002-4906-7121 AD - School of Chemical Sciences, Faculty of Sciences, Pedagogical and Technological University of Colombia, 150001 Tunja, Colombia. LA - eng PT - Journal Article DEP - 20210511 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC8151748 OTO - NOTNLM OT - biogenic CaCO3 OT - polymorphism OT - ureolytic bacteria OT - whey COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2021/06/03 06:00 MHDA- 2021/06/03 06:01 PMCR- 2021/05/11 CRDT- 2021/06/02 01:10 PHST- 2021/04/07 00:00 [received] PHST- 2021/04/30 00:00 [revised] PHST- 2021/05/05 00:00 [accepted] PHST- 2021/06/02 01:10 [entrez] PHST- 2021/06/03 06:00 [pubmed] PHST- 2021/06/03 06:01 [medline] PHST- 2021/05/11 00:00 [pmc-release] AID - ma14102470 [pii] AID - materials-14-02470 [pii] AID - 10.3390/ma14102470 [doi] PST - epublish SO - Materials (Basel). 2021 May 11;14(10):2470. doi: 10.3390/ma14102470.