Antimicrobial and cytotoxic knotwood extracts and related pure compounds and their effects on food-associated microorganisms

Välimaa, Anna-Liisa; Honkalampi-Hämäläinen, Ulla; Pietarinen, Suvi; Willför, Stefan; Holmbom, Bjarne; VONWRIGHT, A

doi:10.1016/j.ijfoodmicro.2006.10.031

Cited by 119 publications

(124 citation statements)

References 35 publications

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“…Our results indicate that ()-epidihydropinidine could possibly be used as a food preservative for the inhibition of Salmonellosis. In contrast to our results with epidihydropinidine, lignans and stilbenes in polar extracts of Norway spruce knotwood were found to be devoid of growth inhibitory effects against Salmonella infantis [96]. It seems therefore that epidihydropinidine would be one potential anti-Salmonella compound in Norway spruce.…”

Section: Accepted Manuscriptcontrasting

confidence: 99%

Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity

et al. 2017

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ArtikkelitLuonnontieteiden This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T

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Section: Accepted Manuscriptcontrasting

confidence: 99%

Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity

et al. 2017

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“…As one of the most potentially significant defect, knots contain many extractives. Knots in softwoods have been found to contain polyphenols, such as lignans, oligolignans and stilbenes, while hardwood knots are rich in flavonoids (Holmbom et al 2003;Valimaa et al 2007). The presence of these extractives affects the movement of moisture, which can cause inhomogeneity during the drying process that leads to further warping and deformation (Hernandez 2007;Royer et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Non-Contact Detection of Surface Quality of Knot Defects on Eucalypt Veneers by Near Infrared Spectroscopy Coupled with Soft Independent Modeling of Class Analogy

et al. 2015

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A knot is a natural defect that degrades the quality of softwood and hardwood veneer. To improve efficiency, the plywood industry needs a rapid, inexpensive method of knot identification that is easy to operate and industrialize. Although a non-contact knot-detection technology based on NIR spectroscopy and soft independent modeling of class analogy (SIMCA) has been successful in detecting softwood knots, it has not yet been explored in eucalypt (hardwood) veneer. This study investigated the interaction between knot size, spectral pretreatment methods, and wavelength range selections on this model's classification accuracy of knots and normal eucalypt wood. The study found that classification results were accurate up to 94.4% for large knot samples (10 to 15 mm in diameter) and up to 100% for knot-free samples. Spectral data for small knots (< 5 mm in diameter) impeded the model's classification accuracy because of confusion between small knots and both large knots and normal wood. Calibration models developed with second-derivative spectra exhibited the highest accuracy, followed by models built with first-derivative spectra, models based on spectra transformed by vector normalization, and the model based on the raw spectroscopy. Wavelength ranges of 1100 to 2500 nm enabled greater classification accuracy than wavelength ranges of 780 to 1100 nm or 780 to 2500 nm.

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“…A wide scope of applications has been suggested or pinosylvins including antifungal and antibacterial agents (Lindberg et al 2004;Lee et al 2005;Celimene et al 1999;Gref et al 2000;Venäläinen et al 2004) with activity towards Listeria monocytogenes (Gözü et al 2010), cytotoxicity against a murine hepatic carcinoma cell line (Välimaa et al 2007), antimetastatic activity (Park et al 2012), antiinflammatory action based on the reduction of blood reactive species (Jančinová et al 2012;Bauerova et al 2011), and angiogenic effects (Kimura and Sumiyoshi 2011).…”

Section: Introductionmentioning

confidence: 99%

Water-Soluble Components of Pinus pinaster Wood

Conde¹,

Fang²,

Hemming³

et al. 2013

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Aqueous fractionation of wood has been proposed as a suitable processing method for biorefineries. When treatments are performed under low severity conditions, water-soluble components (which could be detrimental in further processing stages) are removed, whereas polysaccharides, lignin, and other water-insoluble constituents remain in solid phase with little alteration. In order to explore the presence of added-value products in aqueous extracts from Pinus pinaster wood, different samples (heartwood and sapwood with and without knots) were extracted with water at 130 to 140 ºC, and the resulting solutions were assayed for yield and composition (by GC-FID, GC-MS, and HPLC). The major extract components, such as polysaccharide-derived products, simple phenolics, stilbenes, lignans, flavonoids, organic acids, jubaviones, steryl esters, and triglycerides, were identified and quantified. In order to assess a possible application of the extracts, their antioxidant activity was measured using the Trolox Equivalent Antioxidant Capacity assay.

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Antimicrobial and cytotoxic knotwood extracts and related pure compounds and their effects on food-associated microorganisms

Cited by 119 publications

References 35 publications

Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity

Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity

Non-Contact Detection of Surface Quality of Knot Defects on Eucalypt Veneers by Near Infrared Spectroscopy Coupled with Soft Independent Modeling of Class Analogy

Water-Soluble Components of Pinus pinaster Wood

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