Production of Levoglucosan by Pyrolysis of Carbohydrates

Lakshmanan, C.; Gal‐Or, Benjamin; Hoelscher, H. E.

doi:10.1002/star.19700220703

Cited by 15 publications

(12 citation statements)

References 28 publications

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“…Results using simulated rainwater indicate no degradation over a 10-day period (Fraser and Lakshmanan 2000). The thermal alteration of foods containing carbohydrates and starches can also generate levoglucosan (Lakshmanan and Hoelscher 1970). However, typical cooking techniques do not reach the temperatures needed to generate levoglucosan.…”

Section: Introductionmentioning

confidence: 96%

Determination of Levoglucosan in Particulate Matter Reference Materials

Larsen

Schantz

Wise

2006

Aerosol Science and Technology

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Source identification is critical for the effective management of air pollution. The ratio of levoglucosan (1,6-anhydro-β-D-glucose) to organic carbon has been used to identify and quantify the contribution of biomass combustion to the organic carbon content in aerosols. Therefore, accurate levoglucosan measurements in particulate matter are important. This study determined levoglucosan concentrations in urban dust Standard Reference Materials (SRMs) 1649a and 1648 available from the National Institute of Standards and Technology (NIST) as well as two particulate matter samples with particle sizes nominally 2.5 µm and smaller collected in Baltimore, MD. Levoglucosan was extracted using both pressurized fluid and Soxhlet techniques. Quantification was performed with gas chromatography/mass spectrometry (GC/MS) using a deuterated levoglucosan internal standard and two different GC columns. Levoglucosan concentrations were 81.1 µg g −1 with a standard deviation of 9.4 µg g −1 (n = 9) for SRM 1649a, 107 µg g −1 with a standard deviation of 18 µg g −1 (n = 8) for SRM 1648, 225 µg g −1 (standard deviation of 41 µg g −1 n = 4) and 138 µg g −1 (standard deviation of 39 µg g −1 n = 5) for the two fine particulate matter samples collected in Baltimore, MD.

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Section: Introductionmentioning

confidence: 96%

Determination of Levoglucosan in Particulate Matter Reference Materials

Larsen

Schantz

Wise

2006

Aerosol Science and Technology

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“…Note that these vary dependent on feedstock and the scales on this figure are non-linear. Biomarker ranges derived from a variety of sources: benzene polycarboxylic acids (BPCA) from Schneider et al (2010) and Schneider et al (2011), levoglucosan range from Kuo et al (2008a) and upper limit uncertainty from Lakshmanan et al (1970), Chemo-thermal oxidation (CTO-375) range from Kuo et al (2008a). Kuo et al, 2008aKuo et al, ,b, 2011aKeiluweit et al, 2010; Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Flux of Dissolved and Particulate Low-Temperature Pyrogenic Carbon from Two High-Latitude Rivers across the Spring Freshet Hydrograph

2017

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“…During their studies on pyrolysis of carbohydrates Lakshmanan and Hoelscher [1,2] noticed that starch undergoes pyrolitic degradation when subjected to thermal reaction in a stream of hot inert gas, yielding commercially important products. Depending upon the type of starch and the conditions of technique adopted, the nature and quality of the resulting products display considerable variations.…”

Section: Introductionmentioning

confidence: 99%

Properties of Steam-Treated Arrowroot (Maranta arundinacea) Starch

Raja¹,

Sindhu²

2000

Starch/Stärke

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Arrowroot starch was steam-treated (ST) by subjecting to pressure steaming at 1.03 bar for 15 min, after preconditioning the moisture content in the samples to 15, 25 and 30%. A control sample (9.8% H 2 O) without any added moisture was also treated in a similar way. The steam-treated samples and the unmodified sample were analysed for apparent and soluble amyloses (expressed as blue value), intrinsic viscosity, swelling and solubility at 90°C, and cold water solubles. The thermal decomposition pattern of the samples was studied on a differential thermal analyser (DTA) and the X-ray diffraction pattern on a Philips X-ray diffractometer. The enzyme susceptibility of the unmodified and steam-treated samples was examined with reference to α-amylase. In general, steam-treated samples showed appreciable changes in the above properties compared to the unmodified one, as well as to the sample steam-treated without any added moisture.

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Production of Levoglucosan by Pyrolysis of Carbohydrates

Cited by 15 publications

References 28 publications

Determination of Levoglucosan in Particulate Matter Reference Materials

Determination of Levoglucosan in Particulate Matter Reference Materials

Flux of Dissolved and Particulate Low-Temperature Pyrogenic Carbon from Two High-Latitude Rivers across the Spring Freshet Hydrograph

Properties of Steam-Treated Arrowroot (Maranta arundinacea) Starch

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