scholarly journals Extracción de compuestos fenólicos y contenido de catequina en cortezas de tres especies forestales del Cauca-Colombia

2021 ◽  
Vol 15 (29) ◽  
pp. 19-27
Author(s):  
Rodrigo Andrés Sarria Villa ◽  
José Antonio Gallo Corredor ◽  
Ricardo Benítez Benítez
Keyword(s):  
Pinus Patula ◽  
Pinus Oocarpa

Se evaluó el contenido de catequina en cortezas de las especies forestales Pinus patula, Pinus oocarpa y Eucaliptus grandis, cultivadas en el Departamento del Cauca-Colombia. Los extractos etanólicos se obtuvieron evaluando las mejores condiciones de tamaño de partícula, tiempo de agitación, relación disolvente-corteza, temperatura y agitación. El contenido de catequina se determinó usando cromatografía líquida de alta resolución (HPLC) con detector ultravioleta y empleando extracción en fase sólida (SPE) para la limpieza de las muestras. Se encontró un contenido de catequina de 2.00±0.03%, 2.96±0.02% y 0.18±0.03% en cortezas de P. patula, P. oocarpa y E. grandis respectivamente. Este contenido de catequina indica el gran potencial en aplicaciones industriales y medicinales para un recurso renovable como la corteza, abundante en la región y cuya disposición en campo afecta ambientalmente las zonas forestales.

Lophodermium himalayense. [Descriptions of Fungi and Bacteria].

1993 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Pinus Taeda ◽  
Geographical Distribution ◽  
Tamil Nadu ◽  
Pinus Densiflora ◽  
Uttar Pradesh ◽  
Pinus Patula ◽  
Pinus Roxburghii ◽  
Pinus Kesiya ◽  
Pinus Oocarpa ◽  
North Bengal

Abstract A description is provided for Lophodermium himalayense. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pinus densiflora, Pinus greggii, Pinus insularis, Pinus kesiya, Pinus longifolia, Pinus oocarpa, Pinus patula, Pinus roxburghii, Pinus taeda, Pinus wallichiana, Pinus sp. DISEASES: Needle cast of pines. Although the biology of this species is not known, it is included here for reference, as other members of the genus, and in particular Lophodermium seditiosum Minter, Staley & Millar (Description Sheet 568), are important pathogens of pines. GEOGRAPHICAL DISTRIBUTION: India (Assam, Maharashtra, Meghalaya, North Bengal, Tamil Nadu, Uttar Pradesh), Sri Lanka. TRANSMISSION: By airborne ascospores in wet or humid conditions.

Callus formation from cotyledon protoplasts of Pinus oocarpa and Pinus patula

1988 ◽  
Vol 72 (2) ◽  
pp. 374-378 ◽  
Author(s):  
E. Laine ◽  
H. David ◽  
A. David
Keyword(s):  
Callus Formation ◽  
Pinus Patula ◽  
Pinus Oocarpa

scholarly journals Aprovechamiento integral de residuos lignocelulósicos

2019 ◽  
Vol 11 (1) ◽  
pp. 41º-49
Author(s):  
J. A. Gallo-Corredor ◽  
R. A. Sarria-Villa
Keyword(s):  
Pinus Patula ◽  
Pinus Oocarpa

Las especies Pinus patula y Pinus oocarpa entre otros son unas de las coníferas más cultivadas en el departamento del Cauca, su follaje contiene cierta cantidad de aceites esenciales, los cuales son usados en la industria cosmética y farmacéutica principalmente. La corteza de estas especies maderables es rica en compuestos polifenólicos, empleados en la fabricación de colorantes, resinas y compuestos con actividad antioxidante. Muchas de estas especies forestales son ricas en resinas naturales a partir de las cuales se pueden obtener resinas con aplicaciones industriales y líquidos con características aromáticas. Igualmente, el aserrín que se genera en su procesamiento puede ser empleado para producir biocombustibles y material combustible.

scholarly journals Site Specific Stem Volume Models for Pinus patula and Pinus oocarpa

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Herbert Malata ◽  
Elisha S. Ngulube ◽  
Edward Missanjo
Keyword(s):  
Stem Volume ◽  
Accurate Estimation ◽  
Pinus Patula ◽  
Volume Data ◽  
Site Specific ◽  
Pinus Oocarpa ◽  
Relative Errors ◽  
Total Tree ◽  
Volume Models ◽  
Modelling Approach

Sustainable management of timber forests requires availability and adequacy of models for accurate estimation of tree volumes. This study was conducted to develop site specific models for estimating individual total tree stem volume of Pinus patula and Pinus oocarpa at Chongoni Timber Plantation in Central Malawi. A total of 32 trees from Pinus patula compartment and 48 trees from Pinus oocarpa compartment were destructively sampled. Various predictors including diameter at breast height (dbh) and height (ht) were run against total stem volume using a nonlinear mixed-effects modelling approach. The results indicate that the developed site specific models showed a significant association between total stem volume and the predictors (dbh and ht). The developed volume models accounted for at least 99% of the total variation in the total stem volume data. This suggests that application of the developed site specific models is highly recommended when accurate results are required. The appropriateness of the developed models was also supported by the fact that the total relative errors (TRE) of these models were lower (range: −0.04% to 0.06%) than the TRE of some previously developed models (range: −12.40% to 41.70%) tested on the present data.

scholarly journals Characterization and determination of the quality of rosins and turpentines extracted from Pinus oocarpa and Pinus patula resin

Heliyon ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. e07834
Author(s):  
Rodrigo A. Sarria-Villa ◽  
José A. Gallo-Corredor ◽  
Ricardo Benítez-Benítez
Keyword(s):  
Pinus Patula ◽  
Pinus Oocarpa

PINUS PATULA, MEXICAN PINE

2014 ◽  
pp. 1085-1086
Author(s):  
Henry John Elwes ◽  
Augustine Henry
Keyword(s):  
Pinus Patula

Floristic Composition of a Stand of Pinus oocarpa in Honduras

Biotropica ◽  
1973 ◽  
Vol 5 (3) ◽  
pp. 175 ◽  
Author(s):  
Andre F. Clewell
Keyword(s):  
Floristic Composition ◽  
Pinus Oocarpa
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