Solubility and toxicity of resin acids

Peng, Guomei; Roberts, John C.

doi:10.1016/s0043-1354(99)00406-6

Cited by 89 publications

(65 citation statements)

References 9 publications

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“…Although DHAA concentrations appear to be higher for dry chips, there is no significant difference (Mann-Whitney U = 80, p = 0.64). Isopimaric and DHAA levels are similar to the concentrations previously identified as initiating a toxicity response [12,13] and likely influenced the toxicity response for rainfall samples. There was no significant difference in IA levels between wood chip moisture conditions (MannWhitney U = 64.50, p = 0.66).…”

Section: Rainfall Simulationssupporting

confidence: 66%

Investigating Potential Toxicity of Leachate from Wood Chip Piles Generated by Roadside Biomass Operations

Rex

Dubé

Krauskopf

et al. 2016

Forests

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Roadside processing of wood biomass leaves chip piles of varying size depending upon whether they were created for temporary storage, spillage, or equipment maintenance. Wood chips left in these piles can generate leachate that contaminates streams when processing sites are connected to waterways. Leachate toxicity and chemistry were assessed for pure aspen (Populus tremuloides Michx.), lodgepole pine (Pinus contorta Dougl.), hybrid white spruce (Picea engelmanniiˆglauca Parry), and black spruce (Picea mariana (Mill.) Britton) as well as from two wood chipping sites using mixes of lodgepole pine and hybrid or black spruce. Leachate was generated using rainfall simulation, a static 28-day laboratory assay, and a field-based exposure. Leachate generated by these exposures was analyzed for organic matter content, phenols, ammonia, pH, and toxicity. Findings indicate that all wood chip types produced a toxic leachate despite differences in their chemistry. The consistent toxicity response highlights the need for runoff management that will disconnect processing sites from aquatic environments.

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Section: Rainfall Simulationssupporting

confidence: 66%

Investigating Potential Toxicity of Leachate from Wood Chip Piles Generated by Roadside Biomass Operations

Rex

Dubé

Krauskopf

et al. 2016

Forests

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“…Due to their hydrophobic nature, resin acids have a relatively low solubility in aqueous systems (Peng and Roberts 2000a). Dehydroabietic acid is the most soluble in water (5.1 mg/L) which is about twice as much as the other resin acids.…”

Section: Figmentioning

confidence: 99%

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Lindholm‐Lehto

Knuutinen

Ahkola

et al. 2015

Environ Sci Pollut Res

134

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“…As such, it is of concern because of its detrimental effects on fish, including liver dysfunction, hemolysis of red blood cells, organ and tissue lesions, and genotoxic and neurotoxic effects (Zheng and Nicholson, 1998;Rabergh et al, 1999;Pacheco and Santos, 2002;Teles et al, 2004). It seems to be less toxic than most other resin acids (Peng and Roberts, 2000;Rigol et al, 2004). Beier et al (2000) summarize the biological effects of this compound.…”

Section: Insecticidal Activitymentioning

confidence: 99%

Medicinal chemistry and pharmacology of genus Tripterygium (Celastraceae)

et al. 2007

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Plants in the genus Tripterygium, such as Tripterygium wilfordii Hook. f., have a long history of use in traditional Chinese medicine. In recent years there has been considerable interest in the use of Tripterygium extracts and of the main bioactive constituent, the diterpene triepoxide triptolide (1), to treat a variety of autoimmune and inflammation-related conditions. The main mode of action of the Tripterygium extracts and triptolide (1) is the inhibition of expression of proinflammatory genes such as those for interleukin-2 (IL-2), inducible nitric oxide synthase (iNOS), tumor necrosis factor-α (TNF-α), cyclooxygenase-2 (COX-2) and interferon-gamma (IFN-γ). The efficacy and safety of certain types of Tripterygium extracts were confirmed in human clinical trials in the US and abroad. Over 300 compounds have been identified in the genus Tripterygium, and many of these have been evaluated for biological activity. The overall activity of the extract is based on the interaction between its components. Therefore, the safety and efficacy of the extract cannot be fully mimicked by any individual constituent. This review discusses the biochemical composition and biological and pharmacological activities of Tripterygium extracts, and their main bioactive components.

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Solubility and toxicity of resin acids

Cited by 89 publications

References 9 publications

Investigating Potential Toxicity of Leachate from Wood Chip Piles Generated by Roadside Biomass Operations

Investigating Potential Toxicity of Leachate from Wood Chip Piles Generated by Roadside Biomass Operations

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Medicinal chemistry and pharmacology of genus Tripterygium (Celastraceae)

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