Lipopeptide biosurfactant production by chitosan-immobilized Bacillus sp. GY19 and their recovery by foam fractionation

Characterization of a novel biosurfactant produced by marine hydrocarbon-degrading bacterium Achromobacter sp. HZ01

“…Khondee et al reported that the amounts of lipopeptides in foamate produced from palm oil and crude palm oil added culture media, by chitosan-immobilized Bacillus sp. GY19, were 10Á9 and 9Á8 g l À1 respectively (Khondee et al 2015). In this study, the maximum production yield of the crude biosurfactant reached to 6Á84 g l À1 after incubation for 96 h. The crude yield was favourable, though the fermentation conditions of this work might not be optimal and no production-promoting measure was employed.…”

“…GY19, were 10·9 and 9·8 g l −1 respectively (Khondee et al . ). In this study, the maximum production yield of the crude biosurfactant reached to 6·84 g l −1 after incubation for 96 h. The crude yield was favourable, though the fermentation conditions of this work might not be optimal and no production‐promoting measure was employed.…”

Recycled Lactobacillus pentosus biomass can regenerate biosurfactants after various fermentative and extractive cycles

“…Hence, it is necessary to design biotechnological processes that allow to obtain higher concentrations of cell-bound biosurfactants, otherwise their industrial applications will be very restrictive. For instance, Khondee et al [11] have proposed the immobilization https://doi.org/10.1016/j.bej.2018.01.021 1369-703X/© 2018 Elsevier B.V. All rights reserved.…”

Corrosion of carbon steel induced by a microbial-enhanced oil recovery bacterium Pseudomonas sp. SWP-4

“…Microbial Enhanced Oil Recovery (MEOR) methods, making use of microbial activities and metabolic byproducts to decrease the viscosity and to improve the uidity of crude oil, 1 have been investigated successfully in laboratory and eld conditions, especially in low temperature oileld reservoirs. [2][3][4][5] Genus Pseudomonas as a high-efficiency crude oil degrader degrading nalkanes 6,7 and producing rhamnolipid to reduce surface tension both have been considered to be used in the MEOR process. 8 Microbiologically inuenced corrosion (MIC) is of considerable concerns in the oil, gas and marine industries, which results in high corrosion costs.…”