PMID- 34915068 OWN - NLM STAT- MEDLINE DCOM- 20220209 LR - 20220209 IS - 1872-8359 (Electronic) IS - 0167-7012 (Linking) VI - 192 DP - 2022 Jan TI - Bioremediation of oily seawater by Bacteria immobilization on a novel carrier material containing nutrients. PG - 106392 LID - S0167-7012(21)00260-8 [pii] LID - 10.1016/j.mimet.2021.106392 [doi] AB - A novel carrier material was obtained by coating puffed rhubarb rice (PRR) with calcium alginate (CA) membrane. The carrier material was prepared to contain oil-degrading bacterial strains and inorganic nutrients through entrapping them in different locations. This formulation possessed floatability, biodegradability and nutrient slow-release properties. Therefore, it could be applied for oil biodegradation on seawater surfaces. For controlling the release rate of nutrients, the optimal preparation technique was established. The number of viable cells immobilized on the carrier material reached 2 x 10(9) CFU/g. This formulation could be stored at -20 degrees C for three months without a significant decrease in the number of viable immobilized cells (4 x 10(8) CFU/g). Scanning electron microscope (SEM) results showed that the cells were immobilized on the outer CA membrane, and the inorganic nutrients were entrapped in the inner PRR and CA membrane. The immobilized cells were able to remove 86% of the diesel oil at an initial diesel oil concentration of 1% (v/v), an incubation temperature of 37 degrees C, during three days of incubation. Gas chromatography-mass spectrometry (GC-MS) analysis results showed that most components of diesel oil were degraded by the formulations. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Luo, Qun AU - Luo Q AD - Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China. FAU - Liu, Lina AU - Liu L AD - Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China. FAU - Hou, Dengyong AU - Hou D AD - Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China. Electronic address: Houdy2@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211213 PL - Netherlands TA - J Microbiol Methods JT - Journal of microbiological methods JID - 8306883 RN - 0 (Fuel Oils) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Bacteria/*metabolism MH - *Biodegradation, Environmental MH - Cells, Immobilized/metabolism MH - Fuel Oils/*analysis MH - Gas Chromatography-Mass Spectrometry MH - Seawater/*chemistry/microbiology MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - Bioremediation OT - Carrier material OT - Immobilization OT - Inorganic nutrient OT - Seawater EDAT- 2021/12/17 06:00 MHDA- 2022/02/10 06:00 CRDT- 2021/12/16 20:18 PHST- 2021/06/21 00:00 [received] PHST- 2021/12/05 00:00 [revised] PHST- 2021/12/09 00:00 [accepted] PHST- 2021/12/17 06:00 [pubmed] PHST- 2022/02/10 06:00 [medline] PHST- 2021/12/16 20:18 [entrez] AID - S0167-7012(21)00260-8 [pii] AID - 10.1016/j.mimet.2021.106392 [doi] PST - ppublish SO - J Microbiol Methods. 2022 Jan;192:106392. doi: 10.1016/j.mimet.2021.106392. Epub 2021 Dec 13.