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Thursday, November 12, 2020 | History

2 edition of chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord found in the catalog.

chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord

Herbert Lawrence Hergert

chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord

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Published .
Written in English

    Subjects:
  • Bark.,
  • Forest products.

  • Edition Notes

    Statementby Herbert Lawrence Hergert.
    The Physical Object
    Pagination77 leaves, bound :
    Number of Pages77
    ID Numbers
    Open LibraryOL14311638M

    The Eurasian Spruce Bark Beetle Forms Inconsistent Associations with Ophiostomatoid Fungi. Ips typographus L., the Eurasian bark beetle, is the most aggressive primary bark beetle that attacks Norway spruce trees (Picea abies (L.) Karst.) in Europe and northern Asia (Christiansen and Bakke ). Ips typographus has no specialized integumental structures to transport symbiotic microbes, such.


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chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord by Herbert Lawrence Hergert Download PDF EPUB FB2

And ponderosa pine, decrease in availability white fir. undoubtedly will become increasingly important in. lumber production.

At present, white fir bark is either disposed of in refuse burners or, more rarely, used as fuel. A study of the chemical constituents of the. The chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord Public DepositedAuthor: Herbert Lawrence Hergert.

Scolytus ventralis is native to North America and is distributed in Abies spp. (fir) forests from Baja California and New Mexico north to British Columbia and east to Colorado and Montana (Smith and Cognato, in press, Smith and Cognato, ).Cited by: Silver fir (Abies alba) bark extract was prepared with water, ethyl acetate and PEG.

Strong antioxidant activity of extract was found in cell-based and cell-free assay. Extract was analyzed with normal phase flash chromatography and revered phase by: However, the the bark and the depth of hyphal penetration.

Within the ~3C NMR chemical shifts for 5 were consistently ob- scope of this project, we have made a broad screening of served ca 2 ppm downfield from those reported [5].

phenolic and terpenoid constituents in the root bark of P. Compound 2 was identified as 3,4-dimethoxyphenyl by: To determine the chemical composition and antioxidant activities of different barks, fir (Abies nordmanniana), beech (Fagus orientalis), pine (Pinus sylvestris), poplar (Populus alba), and oak (Quercus robur) barks were selected because they are used for industrial purposes in Turkey.

The dried bark powders were extracted using a methanol. The highest antioxidative activity is achieved by precipitated dry Abies alba bark extract (d-AABE), followed by Abies alba bark extract prepared with PEG (AABE) and maritime pine bark extract.

The wood of the silver fir is used for general construction, and the resinous essential oil in. Abstract. The fir engraver beetle, Scolytus ventralis LeConte (Coleoptera: Scolytidae), was first described from two specimens collected at Vancouver, Washington, but the species has been subsequently recorded throughout the western United States and British Columbia.

20,55 Its primary hosts are true firs, Abies; specifically white fir (A. concolor), California red fir (A. magnifica), and. Abstract. Extracts from the inner stem bark of Berberis vulgaris were analyzed for their antioxidant activity using the 1,1-diphenypicrylhydrazyl (DPPH) method and compared with ascorbic acid (AA) and butylated hydroxytoluene (BHT).The most active extracts were analyzed for their chemical composition using gas chromatography-mass spectrometry.

Fig. 2a–c shows the influence of bark beetle mortality on various fuels characteristics during the period between bark beetle refer to this period of time as the bark beetle rotation for Engelmann spruce, Douglas-fir and lodgepole pine. Each of the seven graphs were derived from fuels data collected in stands with endemic, epidemic and post-epidemic populations of bark beetles.

Abstract. Antibacterial properties of wood structural components and extractives were investigated against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli OH7 by placing bacterial inoculum on the model surfaces and incubating them for 2, 4, and 24 h.

After incubation, the amount of viable bacteria on the surfaces was studied. Abstract. Arbutus andrachne and Platanus orientalis grow naturally in Turkey. They do not occur in stands but can be seen as solitary trees. andrachne is seen in coastal parts of Anatolia, whereas P.

orientalis can be found from west to the east of Turkey, mostly in river banks. Lipophilic extractives, hydrophilic extractives, and suberin monomers from Arbutus andrachne and Platanus. These were: (1) the spraying, by aeroplane, of more thanacres (, ha.) of Douglas fir (Pseudotsuga taxifolia) and white fir (Abies concolor) forests in Oregon and Washington to control the spruce budworm (Choristoneura fumiferana) and (2) the chemical treatment of nearlyEngelmann spruce (Picea engelmanni) trees to kill.

The present study investigates the summative chemical composition of three bark layers (back, cork, and belly) of five Spanish cork samples and one cork sample from Portugal.

Suberin was the main component in all the samples ( to %), followed by lignin ( to 31%), holocellulose ( to %), extractives ( to %), and ash (   Birch bark is known to contain proportionally higher extractives than many other plant resour 48, 49, and was also one of the most common trees in.

Anatomical and chemical defenses of conifer bark against bark beetles and other pests. A description of the physical and chemical nature of the various constitutive defense structures and their distribution within the bark and among species is important to developing an understanding of defense strategies of conifers.

(Picea abies (L. The whole bark of these four species was sequentially extracted with hexane, benzene, ethyl ether, ethyl alcohol and water.

Paper and thin layer chromatographic techniques were coupled with ultraviolet spectral procedures in-the isolation and identification of individual compounds. Results indicated overstory and midstory were dominated by Douglas-fir (Pseudotsuga menziesii) and shade tolerant/fire intolerant white fir (Abies concolor) with interspersed mature aspen on north aspects, and Douglas-fir and Southwestern white pine (Pinus strobiformis) on south aspects.

To develop a fast and environmentally sustainable extraction technique for the extraction of antioxidants from bark of spruce (Picea abies) and also to identify the extracted antioxidants that are abundant in spruce bark. The wood of mature Abies alba Mill. (silver fir) trees is used in construction and furniture industries, the bark being the main waste : This study aimed to investigate possible therapeutic applications of Abies alba bark waste.

MATERIAL AND METHODS: A raw extract and four extractive fractions were obtained from silver fir bark. Abstract. Different solvent fractions (Fs) of water:methanol ( v/v) of heartwood, bark, and leaf extracts of Robinia pseudoacacia were evaluated for their antioxidant activity using the 1,1-diphenylpicrylhydrazyl (DPPH) method; the antifungal activity against the mycelial growth of Trametes versicolor fungus was also most active fractions were analyzed for their chemical.

Abies concolor, the white fir, is a coniferous tree in the pine family tree is native to the mountains of western North America from the southern Cascade range in Oregon, south throughout California and into the Sierra de San Pedro Mártir in northern Baja California; west through parts of southern Idaho, to Wyoming; and south throughout the Colorado Plateau and southern Rocky.

The uppermost layer is the vegetation of the canopy, comprising the crowns of the giant sequoia and of other tree species such as the white fir (Abies concolor), sugar pine (Pinus lambertiana), ponderosa pine (Pinus ponderosa), and often, at lower elevations, the incense-cedar (Libocedrus decurrens).

White fir (Abies concolor) forests in the Coast Ranges of northwestern California, in which Pacific madrone can occur, had a presettlement average fire-return interval of 27 years, with a. Notes on Taxonomy and Nomenclature Top of page Interfertility studies and DNA analyses have shown that the former Heterobasidion annosum sensu lato is a species complex consisting of at least four intersterile, or almost intersterile, taxa that show differences in distribution and host preference.

As a consequence of these studies, Buchanan () separated the non-pathogenic form of. Giant Sequoia (Sequoiadendron giganteum (Lindl.) Buchholz) in Europe1 (Abies concolor, expect the same tree to become one of the important landscape Pinus jeffreyi, Pinus ponderosa, and Calocedrus decurrens).

white fir, and Scots pine (dat a from LÖLF ). Firs (Abies) are a genus of 48–56 species of evergreen coniferous trees in the family are found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the are most closely related to the genus Cedrus (cedar).

Douglas firs are not true firs, being of the genus Pseudotsuga. They are large trees, reaching heights. In California, oceanspray is a characteristic to dominant species of redwood (Sequoia sempervirens) [,], Pacific ponderosa pine [], shore pine (P.

contorta var. contorta) [], and Sierra Nevada lodgepole pine (P. var. murrayana) [] is a minor species in pinyon-juniper (Pinus-Juniperus spp.) communities [].Oceanspray is associated with Rocky Mountain Douglas-fir (Pseudotsuga.

Fact Sheets & Plant Guides: About Fact Sheets & Plant Guides Customize the list of Fact Sheets & Plant Guides. Fact Sheets & Plant Guides is a partnership of the National Plant Data Team and the Plant Materials Sheets provide brief descriptions of a plant, its uses, and cultural recommendations.

At a Joint UC -USFS Blodgett Forest Research Symposium, white fir (Abies concolor) was identified as becoming of increasing importance in western forests, numerically, biologically and economically. It was a very good seed year and, cooperatively with R. Callaham of the Institute of Forest Genetics and J.

Wright of Michigan State. - I adore conifers - pine, white fir, Douglas Fir, Western Redcedar, incense cedar, hemlock, cypress, black spruce and I am blessed to live in the Pacific Northwest where they are plentiful and I can easily forage.

This board is for learning more about conifers and their witchy, magical, and therapeutic uses. This is an important part of the work I do at The Black Stone 65 pins. The chemical composition of tree bark is similar to that of the harvested wood, and it contains a variety of useful compounds. To determine the chemical composition and antioxidant activities of different barks, fir (Abies nordmanniana), beech (Fagus orientalis), pine (Pinus sylvestris), poplar (Populus alba), and oak (Quercus robur) barks were.

Schwilk et al. () found that the probability of bark beetle attack (several species) on pines did not differ between early and late season prescribed fires, whereas the probability of attack on red fir (Abies magnifica A. Murr.) and white fir (Abies concolor Gord.

Tree bark is a major waste product from paper pulp industries; hence it is worthwhile to develop an extraction technique to extract the antioxidants.

Objective To develop a fast and environmentally sustainable extraction technique for the extraction of antioxidants from bark of spruce (Picea abies) and also to identify the extracted. Pseudotsuga is derived from the Greek pseudo, false, and the Japan- ese tsuga, hemlock; macrocarpa means large fruit.

59 WHITE FIR Showing branch and green cone WHITE FIR Abies concolor PARRY. Large trees with old bark, rough, gray and furrowed, and stained with rich an. The rate of decline of these white pine will be furthered by bark beetle infestation and root disease such as Verticicladiella procera (Skelly et al., ~.

McLaughlin et al. () suggest the following sequence of events and conditions afflicting Eastern white pine in the southeastern United States: 1. premature senescence and loss of older. Our trees are easy to plant, with a hole 14" wide by 12" deep, and many people do it themselves but if you want us to do: Layout, Planting, Provide chemical weed control for 58 trees @ $14 -$20 each depending on distance we have to travel for a total of $ (at $ per tree) + sales tax of 7% and mileage to your place and back @ per mile.

The chemical composition of wood varies from species to species, but is approximately 50% carbon, 42% oxygen, 6% hydrogen, 1% nitrogen, and 1% other elements (mainly calcium, potassium, sodium, magnesium, iron, and manganese) by weight.

Wood also contains sulfur, chlorine, silicon, phosphorus, and other elements in small quantity. Introduction. Native Americans used the plants of the boreal forest to treat various ailments and diseases [].The bark of several conifers, such as Pinus strobus (white pine), Picea glauca (white spruce), Larix laricina (Larch tamarack), and Abies balsamea (balsam fir) was used.

The bark was prepared as decoctions, infusions or poultices to treat gonorrhea, tuberculosis, diarrhea, pain. WESTERN AIRBORNE CONTAMINANTS ASSESSMENT PROJECT FINAL REPORT: VOLUME I The Fate, Transport, and Ecological Impacts of Airborne Contaminants in Western National Parks (USA) Burial Lake, Noatak National Preserve Photo: Adam Schwindt Dixon H.

Landers Staci Simonich Daniel Jaffe Linda Geiser Donald H. Campbell Adam Schwindt Carl Schreck Michael Kent Will Hafner. In mixed conifer forests of the south‐western United States, fire suppression has led to a shift in species composition that has altered susceptibility to defoliating insects.

Forest stands most at risk to the western spruce budworm are multistoried with true firs (e.g. white fir, Abies concolor [Gord. and Glend.] Lindl. ex Hildebr.) and.anacidnumberof80to89andanesternumberoffrom4to ResinAcids einammoniumcarbonate ous 13$ bleinammoniumcarbonate llisable 3$ 2.Convinced there had to be a better way, researchers from the Forest Products Laboratory (FPL) investigated the use of remote sensing technologies to monitor the structural components of bridges and homes and transmit the findings to the internet cloud for interpretation.