GC-MS Guide to Ignitable Liquids

Newman, Reta; Gilbert, Michael; Lothridge, Kevin L.

doi:10.4324/9781003067917

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of Isworo, Purwanto and Sabdono (2016) The results of the test of the degradation ability of selected bacteria in the form of a consortium showed a better ability than the degradation ability of a single isolate. The bacterial consortium Exuquobacterium profundum and Oceanobacillus iheyensis had the best degradation ability of 83.23% while the bacteria consortium Exuquobacterium profundum and bacillus formis had the best degradation ability with a value of 68.75% on the Profenofos substrate 29 . The detected biodegradation chemical compounds will be translated into a chromatogram that represents the compound being analyzed.…”

Section: T C a C C A A G G C A A C G A T G C G T A G C C G A C C T G A G A G G G T G A T C G G C C A C A C T G G G A C T G A G A C A C G mentioning

confidence: 99%

The Chemical Compounds from Degradation of Profenofos and Malathion by Indigenous Bacterial Consortium

Isworo¹,

Oetari²

2021

J Pure Appl Microbiol

View full text Add to dashboard Cite

The Indonesian Pesticide Regulations state that Malathion and Profenofos have been restricted in their use for agriculture because of is bioaccumulative in ecological systems. Cleaning technology using microorganisms is an effective solution for cleaning pesticide residues. This study aims to identify the bacteria that degrade and the degradation process of Malathion and Profenophos into non-toxic compounds. The research method was experimental, identification of bacteria by 16S-rRNA gene analysis, degradation ability by GC MS. The results of phylogenetic tree analysis showed that the tested bacteria were closely related to Oceanobacillus iheyenis (RPL1) and Exiquobacterium profundum (RPL5) with a similarity level of 87% and 99%. The two bacteria are used as a consortium of test bacteria. The results of degradation based on the observation chromatogram T = 0 showed that the Malathion compound C10H19O6PS2 or butanedioic acid [(dimethoxyphosphinothioyl) thio]) was detected at peak 4, real-time = 19,675, area% = 7.37 and Profenofos compound C11H15BrClO3PSO-(4-Bromo-2-chlorophenyl)o-ethyl s-propyl thiophosphate, peak 8, real-time = 23,957, area% = 6.91. Likewise, the chromatogram results at T = 96 were still detected Malathion ((dimethoxyphosphinothioyl) thio) at peak 14, real-time = 19,675, area% = 2.25, and Profenofos (o- (4-Bromo-2-chlorophenyl)) o – ethyl. s – propyl thiophosphate) peak = 22 real-time = 23,951, area% = 2,2. However, the observation of T = 192 hours, Malathion and Profenofos compounds were not detected. The conclusion showed that the consortium bacteria were able to completely degrade Malathion and Profenophos within 192 hours.

show abstract

Section: T C a C C A A G G C A A C G A T G C G T A G C C G A C C T G A G A G G G T G A T C G G C C A C A C T G G G A C T G A G A C A C G mentioning

confidence: 99%