Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

Abstract

Tributyltin (TBT) is one of the most toxic anthropogenic compounds introduced into the marine environment. Despite its global ban in 2008, TBT is still a problem of great concern due to its high affinity for particulate matter, providing a direct and potentially persistent route of entry into benthic sediments. Bioremediation strategies may constitute an alternative approach to conventional physicochemical methods, benefiting from the microorganism’s potential to metabolize anthropogenic compounds. In this work, a simple, precise and accurate static headspace gas chromatography method was developed to investigate the ability of TBT degrading microbes in sedimentary microcosms over a period of 120 days. The proposed method was validated for linearity, repeatability, accuracy, specificity, limit of detection and limit of quantification. The method was subsequently successfully applied for the detection and quantification of TBT and degradation compounds in sediment samples on day 0, 30, 60, 90 and 120 of the experiment employing the principles of green chemistry. On day 120 the concentration of TBT remaining in the microcosms ranged between 91.91 ng/g wet wt for the least effective microbial inoculant to 52.73 ng/g wet wt for the most effective microbial inoculant from a starting concentration of 100 ng/g wet wt.

Butyltin Contamination in Fishing Port Sediments after the Ban of Tributyltin Antifouling Paint: A Case of Qianzhen Fishing Port in Taiwan

“…As shown by BT levels in sediments from different regions of the world (Table 2), semi-closed and relatively low-energy harbor or bay sediments have rather high BTs levels. This may be because they are usually anoxic or anaerobic and have low resuspension, which is not conducive to TBT degradation [38,39].…”

Flavor–food ingredient interactions in fortified or reformulated novel food: Binding behaviors, manipulation strategies, sensory impacts, and future trends in delicious and healthy food design

“…Therefore, this review aims to explore flavorfood ingredient interactions from a comprehensive point of view, including the binding behaviors in different food matrices, their impacts on sensory properties, and practical approaches for manipulating these interactions and the resulting flavor quality from the scope of intrinsic and extrinsic influencing factors mediated by technologies available. Recent studies that include instrumental analysis and sensory evaluation will be of primary focus, as F I G U R E 1 Flavor-food ingredient interaction and their influences on flavor release and perception (Finnegan et al, 2018;Keppler et al, 2014;Rodzik et al, 2020).…”

“…Flavor–food ingredient interaction and their influences on flavor release and perception (Finnegan et al., 2018; Keppler et al., 2014; Rodzik et al., 2020). …”

Prussian Blue-Gold Nanohybrids Combined with Headspace Microextraction for Colorimetric/SERS Dual-Mode Sensing of Trimethylamine N-Oxide

“…17 Thus, it is effective to prevent the complex matrix in sample solution from interfering with subsequent detection system. 18 In addition, the sensitivity of headspace analysis can be greatly improved by combining with proper signal amplification tactics, including the incorporation of functional nanomaterials, 19 nucleic acid amplification strategy, 20 and target-induced nanocatalyst deactivation. 21 Accordingly, it is strongly desirable to exploit headspace-based nanosensors for sensitive and selective TMAO detection.…”

“…Of particular interest is the static headspace strategy, which can extract volatile analytes or target-derived volatile components from sample solution into extracting solvent . Thus, it is effective to prevent the complex matrix in sample solution from interfering with subsequent detection system . In addition, the sensitivity of headspace analysis can be greatly improved by combining with proper signal amplification tactics, including the incorporation of functional nanomaterials, nucleic acid amplification strategy, and target-induced nanocatalyst deactivation .…”