Fourier transform infra-red spectroscopy using an attenuated total reflection probe to distinguish between Japanese larch, pine and citrus plants in healthy and diseased states

Gandolfo, D.S.; Mortimer, Hugh; Woodhall, J. W.; Boonham, Neil

doi:10.1016/j.saa.2016.03.022

Cited by 22 publications

(15 citation statements)

References 18 publications

(28 reference statements)

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“…FTIR is a powerful technique for wood characterization, providing details on functional groups and molecular bonds (Evans 1991 ; Pandey 1999 ; Popescu et al 2007 ; Esteves et al 2013 ), which are useful to identify wood parts, wood type and also assessment of wood quality (Moore and Owen 2001 ; Gandolfo et al 2016 ). Due to the complexity of wood, most of the infrared bands cannot be directly assigned to a single component.…”

Section: Introductionmentioning

confidence: 99%

Differentiation between pine woods according to species and growing location using FTIR-ATR

2017

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Attenuated total reflectance-Fourier transform infrared (FTIR-ATR) spectroscopy was applied to 120 samples of heartwood rings from eight individual pine trees from different locations in Spain. Pinus sylvestris cores were collected at the Artikutza natural park (Ps-ART). Pinus nigra cores were collected in Sierra de Cazorla (Pn-LIN) and in La Sagra Mountain (Pn-LSA). Three discriminant analysis tests were performed using all bands (DFT), lignin bands only (DFL) and polysaccharides bands only (DFP), to explore the ability of FTIR-ATR to separate between species and growing location. The DFL model enabled a good separation between pine species, whereas the DFP model enabled differentiation for both species and growing location. The DFT model enabled virtually perfect separation, based on two functions involving twelve FTIR bands. Discrimination between species was related to bands at 860 and 1655 cm−1, which were more intense in P. sylvestris samples, and bands at 1425 and 1635 cm−1, more intense in P. nigra samples. These vibrations were related to differences in lignin structure and polysaccharide linear chains. Discrimination between growing locations was mainly related to polysaccharide absorptions: at 900, 1085 and 1335 cm−1 more representative of Pn-LIN samples, and at 1105 and 1315 cm−1 mostly associated to Pn-LSA samples. These absorptions are related to β-glycosidic linkages (900 cm−1), cellulose and hemicellulose (C–O bonds, 1085 and 1105 cm−1) and content in amorphous/crystalline cellulose (1315 and 1335 cm−1). These results show that FTIR-ATR in combination with multivariate statistics can be a useful tool for species identification and provenancing for pine wood samples of unknown origin.

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Section: Introductionmentioning

confidence: 99%

Differentiation between pine woods according to species and growing location using FTIR-ATR

2017

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“…The assignment of OH stretching appeared at 3300-3400 cm −1 , which is characteristic of OH stretching in alcohols and phenols of cellulose, lignin, or hemicellulose [11,44,[51][52][53][54][55]. The band at 3423 cm −1 (-OH groups bending) in the spectrum of decayed and original samples became wider than the standard linen spectrum, and its peak shifted to a high wave, wherein hydroxyl groups on the backbone of the hemicelluloses were found.…”

Section: Ftir Analysis Of the Linenmentioning

confidence: 99%

The Biofungicide Activity of Some Plant Essential Oils for the Cleaner Production of Model Linen Fibers Similar to Those Used in Ancient Egyptian Mummification

et al. 2020

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In this work, the essential oils (EOs) from Eriocephalus africanus leaf, Vitex agnus-castus leaf and fruit, Cymbopogon citratus leaf, and Rosmarinus officinalis leaf were used as antifungal agents against isolated Aspergillus flavus, Cladosporium cladosporioides, and Penicillium chrysogenum from an ancient Egyptian child’s mummy. The isolated fungi were used to colonize the samples of linen fibers. The best oil was used as a novel natural product for the cleaner production of model linen fibers similar to those used in ancient Egyptian mummification. Standard and original linen fibers were compared with the infected Linen samples using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses. The FTIR revealed the changes in the molecular structure of the cellulose, hemicellulose, and lignin of the infected linen fibers. The cellulose crystallinity indices decreased to 64.61%, 52.69%, and 54.63% in the linen inoculated with A. flavus, C. cladosporioides, and P. chrysogenum compared to the control sample (72.08%), thereby affecting the chemical properties of the cellulose. The mycelia inhibition percentages of the three fungi reached 100% after the leaf EO from V. agnus-castus was applied, followed by C. citratus. The V. agnus-castus leaf EO applied at contraptions of 250, 500, 50, 1000, and 2000 µL/mL showed 100% inhibition for A. flavus and P. chrysogenum and reached 100% against C. cladosporioides at concentrations of 500, 750, 1000, and 2000 µL/mL. C. citratus leaf essential oil applied at concentrations of 500, 750, 1000, and 2000 µL/mL showed 100% inhibition to the growth of A. flavus and C. cladosporioides and reached 100% inhibition against the growth of P. chrysogenum at concentrations of 750, 1000 and 2000 µL/mL. This inhibition could be related to the main compounds of caryophyllene (23.13%), eucalyptol (20.59%), sabinene (β-thujene) (12.2%), γ-elemene (9%), and β-farnesene (6.14%) identified in V. agnus-castus leaf EO or due to the main compounds of β-citral (43.63%) and geranial (41.51%), as identified in the leaf EO of C. citratus by GC/MS. The morphological changes in the hyphae of the fungi were observed via SEM examination, where V. agnus-castus leaf EO, the best active oil, showed potent inhibition to fungi grown on the model linen fiber. In this way, the morphology and the structure of the hyphae were effectively changed. Our findings prove that the designed model linen fiber treated with V. agnus-castus leaf EO is able to preserve wrapping fibres and represents a novel natural alternative for effective fungicidal treatment.

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“…Esta técnica, junto con una sonda de muestreo de reexión total atenuada (ATR), ha demostrado ser eficaz para detectar enfermedades en plantas (Gandolfo, Mortimer, Woodhall, & Boonham, 2016). Gandolfo et al (2016) arman que el uso de otras regiones del espectro electromagnético está limitado por una serie de factores. En la región ultravioleta (UV) (10-400 nm), la radiación solar es fuertemente atenuada por la clorola y los carotenoides, lo que resulta en una fuerte absorción.…”

Section: Espectrometría Inarroja Transformada De Fourierunclassified

Identificación de tecnologías y métodos para la detección temprana del Huanglongbing (HLB) a través de cienciometría en artículos científicos y patentes

Orjuela¹,

Echeverry

Pedraza³

2020

CTA

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El objetivo planteado para esta revisión de literatura científica y de patentes consiste en identificar las tendencias científicas y tecnológicas en la detección del Huanglongbing (hlb) o enverdecimiento de los cítricos, así como las principales acciones que se están adelantando para mitigar su impacto en la citricultura mundial. La detección rápida y oportuna de esta enfermedad es clave para los productores, debido a que se pueden plantear acciones correctivas que eviten una pérdida total de la producción, partiendo de que aún no se conoce una cura para la misma. Para lograr los resultados esperados, se realizó una revisión de las publicaciones en bases de datos científicas y tecnológicas, disponibles entre 2007 y 2018, a partir de una metodología de vigilancia tecnológica. Los resultados fueron analizados y procesados a través del software Matheo Analyzer, lo que permitió identificar las variables de futuro para el tema de trabajo. Se evidenció que Estados Unidos y China son los países que presentan un notable interés en el tema relacionado. Dentro de las instituciones líderes en investigación sobre detección temprana del hlb, se resaltan la Universidad de Florida y el Departamento de Agricultura de Estados Unidos (usda, por sus siglas en inglés). Entre las tecnologías y métodos de detección temprana para esta enfermedad, se encontraron como áreas relevantes de investigación y desarrollo tecnológico la teledetección a partir de la radiación electromagnética captada por sensores, y el área de bioquímica y genética en la que se destacan las técnicas de identificación molecular como la amplificación isotérmica y la reacción en cadena de la polimerasa (pcr).

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Fourier transform infra-red spectroscopy using an attenuated total reflection probe to distinguish between Japanese larch, pine and citrus plants in healthy and diseased states

Cited by 22 publications

References 18 publications

Differentiation between pine woods according to species and growing location using FTIR-ATR

Differentiation between pine woods according to species and growing location using FTIR-ATR

The Biofungicide Activity of Some Plant Essential Oils for the Cleaner Production of Model Linen Fibers Similar to Those Used in Ancient Egyptian Mummification

Identificación de tecnologías y métodos para la detección temprana del Huanglongbing (HLB) a través de cienciometría en artículos científicos y patentes

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