Tinkturenpresse

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Citrus hystrix DC. - syn. Citrus torosa Blanco - Rutaceae - Kaffir lime, Mauritius papeda, Kaffernlimette, Kaffir-Limette, Makrut-Limette, Langdorniger Orangenbaum

Tree 3-6 m tall, exact native range obscure, probably tropical Asia, naturalized and cultivated there; branchlets with spines; leaves dark red when young, ovate, margin apically conspicuously and sparsely crenate, apex narrowly obtuse; inflorescences with (1 or)3-5 flowers; flower buds globose, calyx lobes 4 or 5, broadly triangular,petals white but pinkish red outside, 7-10mm; fruit lemon yellow, ellipsoid to subglobose, 5-7 × 3-5 cm, slightly coarse or smooth, oil dots numerous and prominent.
„Selected forms are cultivated throughout the warm parts of the world for their culinary (leaves) and medicinal (fruit) uses. All named taxa (save perhaps some from central Malesia) seem to have been based on cultivated plants as discussed by Mabberley (Gard. Bull. Singapore 54: 173-184. 2002).“
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242313263

„(−)-Citronellal was characterized as the main component (81%) of the leaf oil. It was also found as the main component of the twig oil (78.64%), and a major component of the peel oil (23.64%) in combination with β-pinene (25.93%) and sabinene (20.36%). In total 57 constituents were characterized in the leaf oil. 2, 6-Dimethyl-5-heptenal, citronellic acid, and safrole were some of the more unusual components found in the various oils of C. hystrix. An extract of the juice, which was found to contain β-pinene (39.50%) and terpinen-4-ol (17.55%), was not very similar in composition to an extract of the peel. This latter extract, which contained β-pinene (31.54%), sabinene (15.57%) and citronellal (16.80%), was qualitatively relatively similar in composition to the peel oil.“
[The chemical composition of Citrus hystrix DC (Swangi)., Sato, A., Asano, K., Sato, T., Journal of Essential Oil Research, 2(4), 1990, 179-183]