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Direct gas chromatographic determination of the chemical composition of turpentine and its content by weight in pine oleoresin






Hydrolysis and wood chemistry USSR: ) 44-46

Direct gas chromatographic determination of the chemical composition of turpentine and its content by weight in pine oleoresin



Accession: 015516527



Related references

Brito, J.; Barrichelo, L.1; Gutierrez, L., 1980: Tar and turpentine quality of tropical pine trees Pinus spp., oleoresin, rosin, chemical composition, yields, Brazil.1. IPEF Instituto de Pesquisas e Estudos Florestais: (21) 55-63

Mitsopoulos, D.J., 1987: Variation in turpentine content of Aleppo pine oleoresin. Oleoresin samples were analysed from 400 Pinus halepensis trees from 16 seed sources (14 Greek, 1 each from Italy and Morocco) in a 15-yr-old trial in NW Peloponnisos, Greece. Provenance means of turpentine content ranged from 24.8 to 29.8%; the r...

Drochnev, Y.G., 1979: Variation of oleoresin turpentine composition in Scots pine. Material was analysed for composition of turpentine from sites in the Gorky, Sverdlovsk, Irkutsk and Pavlodar (Kazakhstan) regions of the USSR. Four primary groups were recognised with the highest concn. of alpha -pinene, DELTA 3-carene, beta -pin...

Polozencev, P.A.; Cudnyj, A.; Zolotov, L., 1969: Some features of the composition of oleoresin turpentine from sick Scots Pine trees. Studies were made in 47-year plantations in S. central Russia on: (1) five apparently healthy trees; (2) five trees affected by Fomes annosus; and (3) five trees affected by F. annosus and secondary insect pests. Data are tabulated on the % turpen...

Swaleh, M.; Sharma, O.P.; Dobhal, N.P., 1976: Chemical composition of turpentine oil from oleoresin (Pinus roxburghii) tapped by chemical stimulants. GLC studies indicated that chemical stimulants used to increase the yield of oleoresin from P. roxburghii also increased the % beta -pinene and longifolene in the turpentine oil, but reduced the % alpha -pinene. The chemical stimulants were: a 20%...

Koev, D.; Lazarova, M.; Ognyanov, I.; Kyleva, L.; Todorova, M., 1989: The amount and qualitative composition of the turpentine in oleoresin - indices of resin productivity in Scots pine. Oleoresin samples from trees of high, medium and low resin yield in Bulgaria were compared. Trees of high resin yield had a high content of turpentine (with 56-86% alpha - and beta -pinene, and the lowest content of Delta -3-carene). The oleoresin...

Song ZhangQian; Liang ZhiQin; Wang Yan; Liu Xing, 1996: Chemical composition of oleoresin of Pinus sylvestris. The main pine species for oleoresin production in Russia. Pinus sylvestris has been classified into 2 groups, central European and southern European, based on the amounts of delta superscript 3-carene in oleoresins of trees from different latitudes. This paper studied the chemical composition of oleoresi...

Bardyshchev, I.; Perchovskii, A., 1970: On chemical composition of crude pine turpentine

Tolkacev, A.K.; Sinelobov, M.A., 1954: Influence of streak depth on the yield of oleoresin in Pine turpentine.. For one group of Pines, with a freshening interval of 3.5 days, the mean yield per streak was 13.3 g. for streak depth 4.8 mm. (4-6 mm.), and 12.2 g. for depth 9.3 (8-11) mm. in another group, when the dcpth of streak was reduced from ca. 1 to ca....

Wilkinson, R.C., 1979: Oleoresin crystallization in eastern white pine: relationships with chemical components of cortical oleoresin and resistance to the white-pine weevil. Laboratory and field tests were carried out in Maine in 1970-78 to determine the relationships between the chemical components of cortical oleoresin and resistance to Pissodes strobi (Peck) in eastern white pine (Pinus strobus). Natural and larva-...