Antitermitic activity ofLonchocarpus castilloi flavonoids and heartwood extracts

1995 ◽  
Vol 21 (4) ◽  
pp. 455-463 ◽  
Author(s):  
R. Reyes-Chilpa ◽  
N. Viveros-Rodríguez ◽  
F. Gómez-Garibay ◽  
D. Alavez-Solano
Keyword(s):  
Antitermitic Activity ◽  
Heartwood Extracts

Antitermitic and antioxidant activities of heartwood extracts and main flavonoids of Hymenaea stigonocarpa Mart.

2013 ◽  
Vol 79 ◽  
pp. 9-13 ◽  
Author(s):  
Claudia A. Maranhão ◽  
Irapuan O. Pinheiro ◽  
Andréa L.B.D. Santana ◽  
Luciana S. Oliveira ◽  
Márcia S. Nascimento ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Heartwood Extracts

scholarly journals Evaluation of Heartwood Extracts Combined with Linseed Oil as Wood Preservatives in Field Tests in Southern Mississippi, USA

Insects ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 803
Author(s):  
Babar Hassan ◽  
Mark E. Mankowski ◽  
Grant T. Kirker
Keyword(s):  
Wood Species ◽  
Linseed Oil ◽  
Ground Contact ◽  
Wood Preservatives ◽  
Southern Pine ◽  
Decay Fungi ◽  
Contact Test ◽  
The Individual ◽  
Heartwood Extracts

Heartwood extracts of naturally durable wood species are often evaluated as alternatives to chemical wood preservatives, but field data from long-term performance testing are lacking. The current study evaluated the long-term (five-year) performance of two non-durable wood species treated with heartwood extracts of either Tectona grandis, Dalbergia sissoo, Cedrus deodara, or Pinus roxburghii alone or combined with linseed oil. Stakes (45.7 × 1.9 × 1.9 cm) and blocks (12.5 × 3.75 × 2.5 cm) cut from the sapwood of cottonwood and southern pine were vacuum-pressure impregnated with the individual heartwood species extract, linseed oil, or a mixture of each individual wood extract and linseed oil. For comparison, solid heartwood stakes and blocks of the wood species used to obtain extracts were also included in the tests. All samples were exposed for five years to decay and termites at a test site in southern Mississippi using ground contact (AWPA E7) and ground proximity (AWPA E26) tests. Results showed that extract-oil mixtures imparted higher termite and decay resistance in cottonwood and southern pine than linseed oil only or the individual heartwood species extract in both tests. However, these treatments were as not effective as to commercially used wood preservatives, copper naphthenate (CuN) or disodium octaborate tetrahydrate (DOT) in either test. Moreover, solid heartwood P. roxburghii stakes were completely decayed and attacked by termites after five years in the ground contact test. In contrast, C. deodara stakes were slightly attacked by termites and moderately attacked by decay fungi. However, T. grandis and D. sissoo stakes showed slight to superficial attack by termites and decay fungi in ground contact test. In contrast, T. grandis and D. sissoo blocks showed slight decay fungi attack in above-ground tests. However, termites did not attack T. grandis, D. sissoo, and C. deodara blocks. However, decay fungi moderately attacked C. deodara blocks, and P. roxburghii blocks were severely attacked by decay fungi and termites in the above-ground test.

Antifungal activities of heartwood extracts of Port-Orford cedar extractives

Holzforschung ◽  
2008 ◽  
Vol 62 (5) ◽  
Author(s):  
Heng Gao ◽  
Diana N. Obanda ◽  
Todd F. Shupe ◽  
Chung Y. Hse ◽  
Dennis R. Ring
Keyword(s):  
Antifungal Activities ◽  
Port Orford Cedar ◽  
Heartwood Extracts

Volatile Constituents ofNeocallitropsis pancheri(Carrière) de Laubenfels Heartwood Extracts (Cupressaceae)

1993 ◽  
Vol 5 (6) ◽  
pp. 587-595 ◽  
Author(s):  
Phila Raharivelomanana ◽  
Aimé Cambon ◽  
Marcel Azzaro ◽  
Jean-Pierre Bianchini ◽  
Angélina Claude-Lafontaine ◽  
...  
Keyword(s):  
Volatile Constituents ◽  
Heartwood Extracts
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