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Jacob B. Bade, Frederick G. Gmitter Jr., and Kim D. Bowman

Volatile oils were extracted from aqueous leaf suspensions of sweet orange [Citrus sinensis (L.) Osb.] cultivars Hamlin, Navel, and Valencia and grapefruit (Citrus paradisi Macf.) cultivars Marsh and Ray Ruby. Pressurized air was used as the sparging gas, and volatile oils were collected in a C-18 cartridge. Gas-liquid chromatography was used to separate and quantify 17 volatile components. Significant quantitative differences for individual components made it possible to distinguish sweet orange from grapefruit (four components), `Marsh' from `Ray Ruby' grapefruit (two components), `Hamlin' from `Valencia' or `Navel' orange (six components), and `Valencia' from `Navel' (three components). The simplicity and sensitivity of the procedure suggest potential use for Citrus taxonomic, genetic, and breeding research.

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Shao-chang Qin, Juan-ling Li, Abdul Kareem, and Yong Wang

throughout hydrodistillation, solvent extraction followed by GC-MS allowed analysis of the chemical constituents with superior results and has been verified to be an economical methodology for extraction of volatile parts and effective chemotaxonomy, which

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Myrtle P. Shock, Clinton C. Shock, Erik B.G. Feibert, Nancy L. Shaw, Lamont D. Saunders, and Ram K. Sampangi

.S. Descalzo, J.T. Dev, B.C. Dev, V. Frost, S. Ma, C.W. 2005 Essential oil composition of four Lomatium Raf. species and their chemotaxonomy Biochem. Syst. Ecol. 33 17 26 Bairamian, S. Beauchamp, P.S. Descalzo, J.T. Dev, B.C. Dev, V. Frost, S.C. Nguyen, C

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Pablo Velasco, Pilar Soengas, Marta Vilar, Maria Elena Cartea, and Mercedes del Rio

is focused on the anticarcinogenic activity of isothiocyanates found in leaves of vegetable crops. Among the metabolic compounds which have frequently been used as chemical markers in chemotaxonomy, the glucosinolates stand out, and it is well known

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Valtcho D. Zheljazkov, Tess Astatkie, and Vicki Schlegel

Himalaya and their chemotaxonomy Ind. Crops Prod. 30 422 426 Busatta, C. Mossi, A.J. Rodrigues, M.R.A. Cansian, R.L. de Oliveira, J.V. 2007 Evaluation of Origanum vulgare essential oil as antimicrobial agent in sausage Braz. J. Microbiol. 38 610 616 Farías

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Mary Ann D. Maquilan, Dominick C. Padilla, Donald W. Dickson, and Bala Rathinasabapathi

Methyl Bromide, Arlington, VA, 29 June–1 July 1993. U.S. Dept. Agr., Washington, DC. 85 p Dickson, D.W. Huisingh, D. Sasser, J.N. 1971 Dehydrogenase, acid and alkaline phosphatases, and esterases for chemotaxonomy of selected Meloidogyne, Ditylenchus

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David Gopaulchan, Adrian M. Lennon, and Pathmanathan Umaharan

.R. Bliss, B.J. Suzuki, J.Y. Borris, R.P. 2014 Chemotaxonomy of Hawaiian Anthurium cultivars based on multivariate analysis of phenolic metabolites J. Agr. Food Chem. 62 11323 11334 Clark, B.R. Swzuki, J.Y. Bliss, B.J. Borris, R.P. 2012 Flavone C

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Ni Jia, Qing-Yan Shu, Dan-Hua Wang, Liang-Sheng Wang, Zheng-An Liu, Hong-Xu Ren, Yan-Jun Xu, Dai-Ke Tian, and Kenneth Michael Tilt

sugar(s) and one optional component, the acylated group(s). Chemical structures of petal anthocyanins and chemotaxonomy of anthocyanins in tree peony have been studied extensively. In comparison, no comprehensive study of petal anthocyanins of herbaceous