Natural Formation of Styrene by Cinnamon Mold Flora

Lafeuille, Jean-Louis; Buniak, M.-L.; Vioujas, M.-C.; Lefevre, S.

doi:10.1111/j.1750-3841.2009.01206.x

Cited by 18 publications

(11 citation statements)

References 11 publications

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“…Penicillium sp. isolated from cinnamon samples converted cinnamon related compounds to styrene (Lafeuille et al, 2009). Styrene is also produced by other fungal species such as Penicillium caseifulvum (Larsen, 1998) and Trichoderma on potato dextrose broth with aromatic cinnamic acid added (Pinches and Apps, 2007).…”

Section: Discussionmentioning

confidence: 99%

Penicillium expansum Volatiles Reduce Pine Weevil Attraction to Host Plants

et al. 2013

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The pine weevil Hylobius abietis (L.) is a severe pest of conifer seedlings in reforested areas of Europe and Asia. To identify minimally toxic and ecologically sustainable compounds for protecting newly planted seedlings, we evaluated the volatile metabolites produced by microbes isolated from H. abietis feces and frass. Female weevils deposit feces and chew bark at oviposition sites, presumably thus protecting eggs from feeding conspecifics. We hypothesize that microbes present in feces/frass are responsible for producing compounds that deter weevils. Here, we describe the isolation of a fungus from feces and frass of H. abietis and the biological activity of its volatile metabolites. The fungus was identified by morphological and molecular methods as Penicillium expansum Link ex. Thom. It was cultured on sterilized H. abietis frass medium in glass flasks, and volatiles were collected by SPME and analyzed by GC-MS. The major volatiles of the fungus were styrene and 3-methylanisole. The nutrient conditions for maximum production of styrene and 3-methylanisole were examined. Large quantities of styrene were produced when the fungus was cultured on grated pine bark with yeast extract. In a multi-choice arena test, styrene significantly reduced male and female pine weevils’ attraction to cut pieces of Scots pine twigs, whereas 3-methylanisole only reduced male weevil attraction to pine twigs. These studies suggest that metabolites produced by microbes may be useful as compounds for controlling insects, and could serve as sustainable alternatives to synthetic insecticides.Electronic supplementary materialThe online version of this article (doi:10.1007/s10886-012-0232-5) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Penicillium expansum Volatiles Reduce Pine Weevil Attraction to Host Plants

et al. 2013

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“…10 SM has been shown a breakdown product formed by cinnamon mold ora and possibly may be present in oceans as a single contaminant. 16 But SOs with constant composition ratio (puri ed PS decomposition, SM1: SD1: ST5 and eld survey in this study, SM1: SD1: ST8) is not naturally present in ocean. It is clear that SO contamination has been around for 45 years before.…”

Section: Worldwide Sos Contaminationmentioning

confidence: 65%

Waste Polystyrene Degradation in the World Oceans: Newly identified sources of Contamination

Saido

Kodera

Kimukai³

et al. 2020

Preprint

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Since 1970, lumps of plastic breakage into micro/nano pieces has been clearly shown a serious and large source of ocean pollution. To clarify in detail the course of this impact, thermoplastics were decomposed at natural conditions kinetically. And field surveys conducted on four thousand sand and water samples including these at deep-sea sites from around the world during the period, 2000 to 2015. All samples were found to contain styrene oligomers (SOs), that had been generated from drifting polystyrene (PS) degradation. Lumps of plastic not only break up into micro/nano-fragments but also degrade into their basic structure units of plastic. From 1950 to 2015, 4.2 billion metric tons (MT) of SOs were shown to be generated from drifting PS. The monomers are newly and highly significant source of pollution of marine ecosystem directly and global warming of planet and should be given the utmost serious attention.

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“…Concerning cinnamic acid, one of the most studied pathways is the non-oxidative decarboxylation of cinnamic acid to styrene. It occurs in fungi, such as Aspergillus, Penicillium, and Trichoderma [40][41][42]. When assayed OMWW, some fungal strains showed different trends, as the most resistant fungi were Ao and Pp [6]; however, An and Lt, which were the most promising strains in this research, also showed the ability to grow on media containing OMWW with a high content of phenol.…”

Section: Removal Of Cinnamic or Vanillic Acid In Liquid Mediamentioning

confidence: 68%

Removal Ability and Resistance to Cinnamic and Vanillic Acids by Fungi

et al. 2020

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Twelve fungal strains were assayed to investigate their resistance to cinnamic and vanillic acids and their ability to remove these compounds from a liquid medium. In a first step, the effect of the two aromatic acids (1 g/L) on the fungal growth kinetic was studied. The results were modelled through a logistic like function (Dantigny equation) to estimate τ, which is the time to the half-maximum colony diameter. The key findings of this part were as follows: (i) generally, cinnamic acid exerted a stronger effect than vanillic acid; (ii) aromatic acids exerted a delay on the growth of some fungi and only one strain (Athelia rolfsii) was completely inhibited. In the second part, fungi were assayed to investigate their ability to remove cinnamic and vanillic acids (ca. 350 mg/kg) from liquid media at pH 3.5. The results indicated that the most efficient fungi were Aspergillus niger and Lasiodiplodia theobromae.

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Natural Formation of Styrene by Cinnamon Mold Flora

Cited by 18 publications

References 11 publications

Penicillium expansum Volatiles Reduce Pine Weevil Attraction to Host Plants

Penicillium expansum Volatiles Reduce Pine Weevil Attraction to Host Plants

Waste Polystyrene Degradation in the World Oceans: Newly identified sources of Contamination

Removal Ability and Resistance to Cinnamic and Vanillic Acids by Fungi

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