Pine heartwood and glass surfaces: easy method to test the fate of bacterial contamination

Vainio-Kaila, Tiina; Kyyhkynen, Aino; Viitaniemi, Pertti; Siitonen, Anja

doi:10.1007/s00107-010-0453-7

Cited by 16 publications

(19 citation statements)

References 18 publications

(20 reference statements)

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“…Thus, it can be assumed that these bacteria do not contaminate the contact objects like food or hands [3] [5] [27]. This phenomenon was confirmed by Vainio-Kaila et al [28], who observed that Colony Forming Units (CFUs) of Escherichia coli and Listeria monocytogenes not only decreased faster on pine heartwood as compared to glass surface but also did not increase on the next day, which excluded the possibility that microbial recovery was less because of bacteria hidden in the wood and stay viable.…”

Section: Porous Structure: Does It Support Microbial Growth?mentioning

confidence: 85%

Antimicrobial Characteristics of Untreated Wood: Towards a Hygienic Environment

Munir¹,

Pailhoriès²,

Eveillard³

et al. 2019

Health

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Wood, as a contact surface, has been used for centuries but is usually questioned because of its porosity and organic composition. It has natural antimicrobial properties and, hygienically, can stand the comparison with other materials such as plastic, glass and steel. In this review, we focused on potential microbe-inhibiting properties of wooden surfaces being used in hygienically important places like health institutes and food industries. This article addresses the questionable properties of untreated wood like hygroscopicity, porosity, roughness and chemical composition, and their relation to the hygienic and antimicrobial nature of this material. The other factors linked to the hygienic properties of wood, such as age, species and type of wood, have also been discussed. Our analysis of literature will create better understanding for acceptance of wood as a safety renewable resource. It also provides an outline for future research considering wood material in critical healthcare or food industries.

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Section: Porous Structure: Does It Support Microbial Growth?mentioning

confidence: 85%

Antimicrobial Characteristics of Untreated Wood: Towards a Hygienic Environment

Munir¹,

Pailhoriès²,

Eveillard³

et al. 2019

Health

View full text Add to dashboard Cite

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“…The mechanisms behind the antibacterial activity of wood are not completely understood, but it is believed to derive from a combination of factors such as hygroscopic drying of the wood surface and wood extractives (Schönwalder et al 2002;Vainio-Kaila et al 2011).…”

Section: Factors Affecting Antibacterial Effectsmentioning

confidence: 99%

“…Hygroscopicity is associated with dehydration of bacteria, and some of the chemical components in wood directly inhibit the growth of bacteria (Schönwalder et al 2002;Vainio-Kaila et al 2011;Laireiter et al 2013). The role of extractives and other wood components in antibacterial activity has been investigated in a few studies, and it has been found that the extracts from pine heartwood ( (Välimaa et al 2007).…”

Section: Factors Affecting Antibacterial Effectsmentioning

confidence: 99%

The influence of wooden interior materials on indoor environment: a review

et al. 2020

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Environmental issues and health-benefitting design strategies have raised interest in natural and renewable building materials, resulting in an increased focus on the use of wood in built environment. The influence of wooden materials on measured and perceived indoor environment quality (IEQ) has gained attention during the past few decades, with a growing number of studies having explored the issue. This review was conducted to examine and summarise the body of research on the influence of wooden interior materials on IEQ, with an emphasis on the following themes: emissions of chemical compounds, moisture buffering of indoor air, antibacterial effects, acoustics, and psychological and physiological effects. This review found that wooden interior materials exert mainly positive or neutral effects on IEQ, such as moderating humidity fluctuations of indoor air, inducing positive feelings in occupants, and inhibiting certain bacteria. Negative effects on IEQ are limited to volatile organic compounds emitted from wood. The odour thresholds of some aldehydes and terpenes are low enough to affect the perceived IEQ. Additionally, concentrations of formaldehyde and acrolein may under certain conditions cause adverse health effects. Further studies are needed to better understand these phenomena and take advantage of the beneficial effects while hindering the unpleasant ones.

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“…The thin layer formed provides a ''natural'' coating and there is less need for further surface finishing. A wood surface enriched in extractives has increased hydrophobicity (Nussbaum 1999;Nussbaum and Sterley 2002) and it is antibacterial due to the biocidal properties of extrac-tives (Milling et al 2005;Vainio-Kaila et al 2010). In densified Norway spruce and Scots pine (Rautkari et al 2010a) the migration of canal resin to the surface has been detected visually, but to date no chemical evidence of such migration has been reported.…”

Section: Introductionmentioning

confidence: 99%