Review of biotreatment techniques for volatile sulfur compounds with an emphasis on dimethyl sulfide

2014 ◽  
Vol 49 (9) ◽  
pp. 1543-1554 ◽  
Author(s):  
Balendu Shekher Giri ◽  
Ki Hyun Kim ◽  
R.A. Pandey ◽  
Jinwoo Cho ◽  
Hocheol Song ◽  
...  
Keyword(s):  
Dimethyl Sulfide ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Volatile Sulfur

scholarly journals Pengaruh Ritma Circadian Terhadap Produksi Volatile Sulfur Compounds (VSC) Oral

2013 ◽  
Vol 20 (1) ◽  
pp. 14 ◽  
Author(s):  
Supriatno Supriatno
Keyword(s):  
Circadian Rhythm ◽  
Dimethyl Sulfide ◽  
Pearson Correlation ◽  
Gas Production ◽  
Sulfur Compounds ◽  
Hormone Production ◽  
Volatile Sulfur Compounds ◽  
Significance Level ◽  
Significant Difference ◽  
Volatile Sulfur

Volatile sulfur compounds (VSCs) oral dihasilkan dari produk putrifikasi mikroba gas hidrogen sulfida (H2S), metil merkaptan (CH3SH) dan dimetil sulfida [(CH3)2S] yang merupakan gas utama penyebab halitosis. Ritma circadian mempunyai pengaruh terhadap fungsi beberapa organ tubuh termasuk sekresi saliva, produksi hormon, fungsi sistem tubuh, dan aktivitas mikroorganisma. Penelitian bertujuan menguji pengaruh ritma circadian terhadap produksi VSC oral yang diukur menggunakan OralChroma portable. Penelitian dilakukan dengan mengukur gas VSC individu yang sama pada pagi, siang dan malam hari di laboratorium riset terpadu FKG UGM. Hasil pengukuran H2S, CH3SH dan (CH3)2S diuji menggunakan analisis statistik Anava dua jalur dilanjutkan uji LSD dan uji korelasi Pearson dengan derajat kemaknaan 95%. Hasil penelitian menunjukkan terdapat perbedaan yang sangat bermakna antara produksi gas H2S, CH3SH dan (CH3)2S dengan waktu pengukuran (efek circadian) (p=0,000). Perbedaan sangat bermakna diketahui pula pada pengukuran gas H2S dan (CH3)2S antara pagi, siang dan malam (p=0,01 dan p= 0,00), serta pengukuran gas CH3SH siang dan malam (p=0,006), tetapi tidak pada CH3SH pagi hari (p=0,061). Produksi gas H2S tertinggi diketahui pada pagi hari (mean 1,198 ng/10 ml, CH3SH pada malam hari (mean 0,099 ng/10 ml), dan (CH3)2S pada siang hari (mean 1,216 ng/10 ml). Kekuatan hubungan pengukuran antara ke tiga gas dengan efek circadian diketahui sebesar r=0,738. Disimpulkan bahwa ritma circadian berpengaruh terhadap produksi VSCs oral. Produksi gas H2S dan (CH3)2S berbeda antara pagi, siang dan malam hari, sedangkan produksi gas CH3SH berbeda hanya pengukuran siang dan malam hari. Produksi gas H2S tertinggi diketahui pada pagi hari, gas CH3SH pada malam hari, dan gas (CH3)2S pada siang hari. Maj Ked Gi. Juni 2013; 20(1): 14 - 20.The Effect Of Circadian Rhythm To Oral Volatile Sulfur Compounds Production. Oral volatile sulfur compound (VSC) is produced from microbial purification of hydrogen sulfide (H2S), methyl mercaptan (CH3SH) and dimethyl sulfide [(CH32S] gases. They are the main gases that cause halitosis. Circadian rhythm influenced the function of several organs of the human body including salivary secretion, hormone production, the body’s systems function, and activity of microorganisms. The purpose of this research is to examine the influence of circadian rhythm to oral VSC production measured by using a portable Oral Chroma. The research was carried-out by measuring the individual VSC gases in the morning, afternoon and evening at the integrated research laboratory, Faculty of Dentistry, UGM. Gases of H2S, CH3SH and (CH3)2S were tested by two-way ANOVA followed by Post-hoc LSD and Pearson correlation test with 95% significance level. The results showed the positive significant differences among the production of H2S, CH3SH and (CH3)2S with circadian time (p=0.000). Highly significant difference was also detected in amount of H2S and (CH3)2S gases in the morning, afternoon and evening (p=0.01 and p=0.00), as well as the amount of CH3SH gas in the afternoon and night (p=0.006), but not in amount of CH3SH gas in the morning (p=0.061). The highest production of H2S gas was known in the morning (mean 1.198 ng/10 ml), CH3SH gas was detected in the night (mean 0.099 ng/10 ml), and (CH3)2S gas was observed in the afternoon (mean 1.216 ng/10 ml). The strength of relationship among amount of three gases with circadian effects was r = 0.738. It is concluded that circadian rhythm markedly influences the production of oral VSCs. H2S and (CH3)2S gases production were significantly different among in the morning, afternoon and evening. However, amount of CH3SH gas production was significantly different only in the afternoon and the night. The highest gas production of H2S, CH3SH, and (CH3)2S was observed in the morning, in the night, and in the afternoon, respectively.

Determination of nanogram level of VSCs using GC-SCD and an adsorption tube

2004 ◽  
Vol 49 (9) ◽  
pp. 329-334 ◽  
Author(s):  
Y.G. Choi ◽  
D.H. Ko ◽  
H.J. Kim ◽  
T.H. Chung
Keyword(s):  
Dimethyl Sulfide ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Good Repeatability ◽  
Perfect Recovery ◽  
Gas Tight ◽  
Chemiluminescence Detector ◽  
Nanogram Level ◽  
Volatile Sulfur

A quantitative analytical method was used for detection of low level of volatile sulfur compounds (VSCs) using GC with a sulfur chemiluminescence detector (SCD) in this study. A linear response over the range of 2-90 ngS injected was obtained with a good repeatability or reproducibility. Equimolar response for H2S, DMS, MeSH, and EtSH was obtained by use of SCD and the response of the SCD is nearly equimolar for different sulfur compounds. It was possible to quantify the total VSCs as well as individual VSC using one of the standard VSCs. VSC recovery was measured with respect to some storing methods. An adsorption tube packed with molecular sieve 5A showed almost perfect recovery for both H2S and dimethyl sulfide (DMS) during 6 days at a dark state below 2°. Whereas, with a gas tight pyrex vial or tedlar bag, it was impossible to obtain the recovery of 50% after 6 days. It is strongly recommended to use the adsorption tube for determination of nanogram levels of volatile sulfur compounds and for storing and concentrating VSCs effectively with a minimum experimental error.

Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers

2013 ◽  
Vol 68 (11) ◽  
pp. 2330-2336 ◽  
Author(s):  
E. A. Rudelle ◽  
J. Vollertsen ◽  
T. Hvitved-Jacobsen ◽  
A. H. Nielsen
Keyword(s):  
Dimethyl Sulfide ◽  
Hot Spot ◽  
Aerobic Oxidation ◽  
Sulfide Oxidation ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Reaction Rate Constants ◽  
Oxidation Rates ◽  
Kinetics Of ◽  
Volatile Sulfur

Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. Samples of wastewater and biofilm for the experiments were obtained from two locations that differed significantly with respect to the occurrence of VSCs. One location represented an odor hot-spot downstream of a force main and the other was a gravity sewer transporting young aerobic wastewater. The kinetics of VSC oxidation for both wastewater and suspended biofilm samples followed a first-order rate equation. The average values of the reaction rate constants demonstrated the following order of reactivity: total inorganic sulfide > EtSH ≥ MeSH >> DMS. Except for total inorganic sulfide oxidation in wastewater, kinetic parameters for each VSC were of similar magnitude for the two locations. In the wastewater from the odor hot-spot, sulfide inorganic oxidation rates were approximately 12 times faster than in the aerobic wastewater.

Stability of Volatile Sulfur Compounds (VSCs) in sampling bags – impact of temperature

2013 ◽  
Vol 68 (8) ◽  
pp. 1880-1887 ◽  
Author(s):  
H. Le ◽  
E. C. Sivret ◽  
G. Parcsi ◽  
R. M. Stuetz
Keyword(s):  
Hydrogen Sulfide ◽  
Waste Management ◽  
Dimethyl Sulfide ◽  
Agricultural Practices ◽  
Dimethyl Disulfide ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Local Populations ◽  
And Storage ◽  
Volatile Sulfur

Volatile sulfur compounds (VSCs) are a major component of odorous emissions that can cause annoyance to local populations surrounding wastewater, waste management and agricultural practices. Odour collection and storage using sample bags can result in VSC losses due to sorption and leakage. Stability within 72 hour storage of VSC samples in three sampling bag materials (Tedlar, Mylar, Nalophan) was studied at three temperatures: 5, 20, and 30 °C. The VSC samples consisted of hydrogen sulfide (H2S), methanethiol (MeSH), ethanethiol (EtSH), dimethyl sulfide (DMS), tert-butanethiol (t-BuSH), ethylmethyl sulfide (EMS), 1-butanethiol (1-BuSH), dimethyl disulfide (DMDS), diethyl disulfide (DEDS), and dimethyl trisulfide (DMTS). The results for H2S showed that higher loss trend was clearly observed (46–50% at 24 hours) at 30 °C compared to the loss at 5 °C or 20 °C (of up to 27% at 24 hours) in all three bag materials. The same phenomenon was obtained for other thiols with the relative recoveries after a 24 hour period of 76–78% at 30 °C and 80–93% at 5 and 20 °C for MeSH; 77–80% at 30 °C and 79–95% at 5 and 20 °C for EtSH; 87–89% at 30 °C and 82–98% at 5 and 20 °C for t-BuSH; 61–73% at 30 °C and 76–98% at 5 and 20 °C for 1-BuSH. Results for other sulfides and disulfides (DMS, EMS, DMDS, DEDS) indicated stable relative recoveries with little dependency on temperature (83–103% after 24 hours). DMTS had clear loss trends (with relative recoveries of 74–87% in the three bag types after 24 hours) but showed minor differences in relative recoveries at 5, 20, and 30 °C.

scholarly journals Halitosis in Children Undergoing Full Mouth Rehabilitation under General Anesthesia

Children ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 149
Author(s):  
Noura A. AlMadhi ◽  
Ayman M. Sulimany ◽  
Hamad A. Alzoman ◽  
Omar A. Bawazir
Keyword(s):  
General Anesthesia ◽  
Sulfur Compounds ◽  
Parental Consent ◽  
Inclusion Criteria ◽  
Breath Sample ◽  
Volatile Sulfur Compounds ◽  
Before And After ◽  
Full Mouth Rehabilitation ◽  
Volatile Sulfur

Interventions and management modalities of pediatric halitosis have been suggested in the literature, however, the effect of full mouth rehabilitation (FMR) under general anesthesia (GA) on pediatric halitosis was not reported. Therefore, the present study was conducted to investigate parents’ perceptions of their child’s halitosis before and after FMR under GA; and to evaluate the effect of FMR on clinical halitosis. Fifty-seven children between 3–8 years old, scheduled for FMR under GA, were included after satisfying the inclusion criteria and upon parental consent. Parents’ perception of halitosis in their children was evaluated using a standardized questionnaire and a breath sample was collected to assess the level of volatile sulfur compounds (VSCs) using OralChromaTM before and after FMR under GA. Sixty percent (n = 34) of the parents perceived halitosis in their children before FMR and about 80% (n = 27) of them reported improvement in halitosis after FMR. Clinical halitosis was detected in 84.2% (n = 48) of the sample before treatment. A statistically significant reduction in halitosis was found in 56.3% (n = 27) of the children after treatment (p < 0.001). In conclusion, majority of parents perceived an absence or reduction of halitosis in their children following FMR and significant improvement of clinical halitosis.

scholarly journals Identification of Volatile Sulfur Compounds Produced by Schizophyllum commune

2021 ◽  
Vol 7 (6) ◽  
pp. 465
Author(s):  
Takahito Toyotome ◽  
Masahiko Takino ◽  
Masahiro Takaya ◽  
Maki Yahiro ◽  
Katsuhiko Kamei
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Lead Acetate ◽  
Schizophyllum Commune ◽  
Dimethyl Disulfide ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Volatile Organic ◽  
Allergic Bronchopulmonary Mycosis ◽  
Volatile Sulfur

Schizophyllum commune is a causative agent of allergic bronchopulmonary mycosis, allergic fungal rhinosinusitis, and basidiomycosis. Diagnosis of these diseases remains difficult because no commercially available tool exists to identify the pathogen. Unique volatile organic compounds produced by a pathogen might be useful for non-invasive diagnosis. Here, we explored microbial volatile organic compounds produced by S. commune. Volatile sulfur compounds, dimethyl disulfide (48 of 49 strains) and methyl ethyl disulfide (49 of 49 strains), diethyl disulfide (34 of 49 strains), dimethyl trisulfide (40 of 49 strains), and dimethyl tetrasulfide (32 of 49 strains) were detected from headspace air in S. commune cultured vials. Every S. commune strain produced at least one volatile sulfur compound analyzed in this study. Those volatile sulfur compounds were not detected from the cultures of Aspergillus spp. (A. fumigatus, A. flavus, A. niger, and A. terreus), which are other major causative agents of allergic bronchopulmonary mycosis. The last, we examined H2S detection using lead acetate paper. Headspace air from S. commune rapidly turned the lead acetate paper black. These results suggest that those volatile sulfur compounds are potent targets for the diagnosis of S. commune and infectious diseases.

Evaluation of volatile sulfur compounds in the expired alveolar gas in patients with liver cirrhosis

1978 ◽  
Vol 85 (3) ◽  
pp. 279-284 ◽  
Author(s):  
Kaji Hiroshi ◽  
Hisamura Masaya ◽  
Saito Nariyoshi ◽  
Murao Makoto
Keyword(s):  
Liver Cirrhosis ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Volatile Sulfur
Sign in / Sign up

Export Citation Format

Share Document