Resumo

ESTRADA-ZUNIGA, M.E.; ARANO-VARELA, H.; BUENDIA-GONZALEZ, L.  e  OROZCO-VILLAFUERTE, J.. Fatty acids, phenols content, and antioxidant activity in Ibervillea sonorae callus cultures. Rev. Mex. Ing. Quím [online]. 2012, vol.11, n.1, pp.89-96. ISSN 1665-2738.

Ibervillea sonorae callus cultures were established in order to produce fatty acids (lauric, myristic, pentadecanoic, palmitic and stearic acids) and phenolic compounds. Highest callus induction (100%) was obtained in treatments containing 2.32 or 4.65 μM Kinetin (KIN) with 2.26 or 6.80 μM 2,4-Dichlorophenoxyacetic acid (2,4-D). Highest fatty acids (FA) production (48.57 mg g^-1), highest total phenol content (TPC; 57.1 mg gallic acid equivalents [GAE] g^-1) and highest antioxidant activity (EC₅₀; 573.3-855.7 /μg mL^-1) was obtained from calius derived from 4.65 μM KIN with 6.80 μM 2,4-D. A direct relationship was observed between the callus growth index (GI), FA content, TPC and EC₅₀. FA content was significantly higher in callus (48.57 mg g^-1) than the reported for tuber roots from wild plaint (0.25 mg g^-1). TPC and EC₅₀ were higher in leaves (3560.1 mg GAE g^-1 and (5(5.0-75.5 /μg mL^-1, respectively) than in callus.

Palavras-chave : plant tissue culture; Ibervillea sonorae; fatty acids; phenols; antioxidant activity.