Near-infrared-based models for lignin syringyl/guaiacyl ratio of Eucalyptus benthamii and E. pellita using a streamlined thioacidolysis procedure as the reference method

Diniz, C. P.; Grattapaglia, Dário; Mansfield, Shawn D.; Figueiredo, Lúcio Flávio de Alencar

doi:10.1007/s00226-019-01090-3

Cited by 13 publications

(7 citation statements)

References 24 publications

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“…As a fast, accurate, and simple nondestructive testing method, near infrared spectroscopy (NIR) technology has been applied to the rapid testing of wood material properties [23][24][25]. There have been some studies on the prediction of poplar density by using NIR technology.…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Poplar Clones and Rapid Prediction of the Properties by Near Infrared Spectroscopy

Jia

Wang

et al. 2021

Forests

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In order to understand the physical and mechanical properties of poplar clones, and explore a method for their quick evaluation, the air dry density, modulus of rupture (MOR), modulus of elasticity (MOE), and compressive strength parallel to grains of three new bred poplar clones were explored and the prediction models with the highest accuracy were established by near infrared spectroscopy (NIR). Clone 50 (Populus deltoides CL. ‘55/65′) had the highest air dry density, MOR, MOE, and compressive strength parallel to grains in the three clones. For clone 50 and 108 (Populus euramericana cv. ‘Guariento’), the mechanical properties of sapwood were better than those of heartwood, and the sapwood of clone 50 also had a better air dry density than that of heartwood. There were significant positive correlations between the air dry density and mechanical properties, with correlation coefficients above 0.68. Prediction models with better effects could be obtained by using information on the cross section for the air dry density and mechanical properties. First derivative+ Savitzky–Golay (S-G) smoothing methods were employed for the air dry density and MOR, and multiple scattering correction (MSC)+ S-G smoothing methods were used when establishing prediction models of MOE and compressive strength parallel to grains.

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Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Poplar Clones and Rapid Prediction of the Properties by Near Infrared Spectroscopy

Jia

Wang

et al. 2021

Forests

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“…Prediction models for S/G ratio were developed using sawdust samples from 1220 trees of two Eucalyptus species, namely, Eucalyptus benthamii Maiden and Cambage and Eucalyptus pellita F. Muell. 9 Lupoi et al 10 compared S/G ratio predicted using mid IR, NIR, and Raman spectroscopy to develop calibration models using multivariate analysis. The RMSEP (root mean square error of prediction) for Raman (0.13–0.15) and Mid-IR (0.13–0.16) estimation was nearly same, whereas for NIR it was slightly higher (0.18–0.21).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Kraft pulp yield and syringyl/guaiacyl ratio from standing trees (Eucalyptus camaldulensis, E. urophylla, Leucaena leucocephala and Casuarina junghuhniana) using portable near infrared spectroscopy

Ramadevi¹,

Kamalakannan²,

Suraj³

et al. 2022

Journal of Near Infrared Spectroscopy

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Measurement of pulpwood traits from a standing tree has considerable advantage when screening large populations for tree selection. It reduces time and also eliminates requirements of transport, powdering, and storing the sample. This study describes estimation of Kraft pulp yield (KPY) in Eucalyptus camaldulensis, E. urophylla, Leucaena leucocephala, and Casuarina junghuhniana by portable NIR spectroscopy of standing trees. Calibration models were developed for KPY estimation using portable NIR spectroscopy for the four species, along with a calibration model for syringyl/guaiacyl (S/G) ratio in E. camaldulensis. The calibration models for KPY showed R2 values ranging from 0.93 ( E. camaldulensis) to 0.83 ( L. leucocephala), and 0.95 for S/G ratio. The developed calibration models for E. camaldulensis and L. leucocephala were compared with laboratory NIR models, and a variation of <±2.0% was found between both methods. The models were validated by both external and cross validation which showed <2.0% RMSEP (root mean square error of prediction) and <2.0% RMECV (root mean square error of cross validation) in external and cross validations, respectively.

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“…An alternate strategy, the overexpression of Ferulate 5-Hydroxylase ( F5H ) led to a substantially increased S/G ratio, which consequently resulted in increased chemical (Kraft) pulping efficiency [ 34 , 35 ]. These biotechnology efforts nicely complement breeding efforts to select for trees with elevated syringyl content [ 36 – 38 ], which are known to display improved pulping properties [ 39 , 40 ]. Looking forward, these foundational findings help to guide more specialized engineering and breeding efforts in trees.…”

Section: Introductionmentioning

confidence: 99%

Tailoring renewable materials via plant biotechnology

Vries

Guevara-Rozo

Cho

et al. 2021

Biotechnol Biofuels

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Plants inherently display a rich diversity in cell wall chemistry, as they synthesize an array of polysaccharides along with lignin, a polyphenolic that can vary dramatically in subunit composition and interunit linkage complexity. These same cell wall chemical constituents play essential roles in our society, having been isolated by a variety of evolving industrial processes and employed in the production of an array of commodity products to which humans are reliant. However, these polymers are inherently synthesized and intricately packaged into complex structures that facilitate plant survival and adaptation to local biogeoclimatic regions and stresses, not for ease of deconstruction and commercial product development. Herein, we describe evolving techniques and strategies for altering the metabolic pathways related to plant cell wall biosynthesis, and highlight the resulting impact on chemistry, architecture, and polymer interactions. Furthermore, this review illustrates how these unique targeted cell wall modifications could significantly extend the number, diversity, and value of products generated in existing and emerging biorefineries. These modifications can further target the ability for processing of engineered wood into advanced high performance materials. In doing so, we attempt to illuminate the complex connection on how polymer chemistry and structure can be tailored to advance renewable material applications, using all the chemical constituents of plant-derived biopolymers, including pectins, hemicelluloses, cellulose, and lignins.

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Near-infrared-based models for lignin syringyl/guaiacyl ratio of Eucalyptus benthamii and E. pellita using a streamlined thioacidolysis procedure as the reference method

Cited by 13 publications

References 24 publications

Physical and Mechanical Properties of Poplar Clones and Rapid Prediction of the Properties by Near Infrared Spectroscopy

Physical and Mechanical Properties of Poplar Clones and Rapid Prediction of the Properties by Near Infrared Spectroscopy

Evaluation of Kraft pulp yield and syringyl/guaiacyl ratio from standing trees (Eucalyptus camaldulensis, E. urophylla, Leucaena leucocephala and Casuarina junghuhniana) using portable near infrared spectroscopy

Tailoring renewable materials via plant biotechnology

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