Characterization of typo-, regio-, and stereo-selectivities of babaco latex lipase in aqueous and organic media

The unripe fruit of babaco (Vasconcellea 9 heilbornii; syn. Carica pentagona) contains a latex, similar to that in Carica papaya, which exhibits lipolytic activity. Herein, the regioselectivity, stereoselectivity and typoselectivity in both hydrolysis and acyltransfer reactions of babaco latex lipases were studied and compared to those of Carica papaya latex. In hydrolysis, both biocatalysts are 1,3-regioselective with ratios for 1,2-2,3-diacylglycerols/1,3- diacylglycerol of 6.5 and 21 for babaco and papaya, respectively. In contrast, papaya latex had a slight sn- 3 stereopreference. Babaco latex displayed a higher activity on triacylglycerols with short chain and unsaturated fatty acids.

Bibliographic Details

Main Authors:	Cambon, Emmanuelle, Pina, Michel, Arondel, Vincent, Rodriguez, J.A., Carrière, Frédéric, Turon, Fabrice, Ruales, Jenny, Villeneuve, Pierre
Format:	article biblioteca
Language:	eng
Subjects:	Q02 - Traitement et conservation des produits alimentaires, Carica pentagona, Carica papaya, latex, estérase, propriété physicochimique, triacylglycérol lipase, structure chimique, biocatalyseur, activité enzymatique, acylation, hydrolyse enzymatique, lipase, http://aims.fao.org/aos/agrovoc/c_32091, http://aims.fao.org/aos/agrovoc/c_1323, http://aims.fao.org/aos/agrovoc/c_4214, http://aims.fao.org/aos/agrovoc/c_2670, http://aims.fao.org/aos/agrovoc/c_1521, http://aims.fao.org/aos/agrovoc/c_24095, http://aims.fao.org/aos/agrovoc/c_15893, http://aims.fao.org/aos/agrovoc/c_27460, http://aims.fao.org/aos/agrovoc/c_2604, http://aims.fao.org/aos/agrovoc/c_28220, http://aims.fao.org/aos/agrovoc/c_27512, http://aims.fao.org/aos/agrovoc/c_12194, http://aims.fao.org/aos/agrovoc/c_2485,
Online Access:	http://agritrop.cirad.fr/543263/ http://agritrop.cirad.fr/543263/1/document_543263.pdf
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