Publications by authors named "Sandra A Oliveira-Collet"
Article Synopsis
- The study focused on creating a sustainable alternative method for callus culture of Cereus hildmannianus to produce and analyze phenolic compounds.
- Traditional cultivation used agar in MS medium, while the alternative used cotton and filter paper with the same medium, showing successful callus development over 8 weeks.
- The extracted phenolic compounds were identified and quantified, with the highest concentrations and greatest bioactivity found in the dichloromethane fractions, indicating potential for developing natural antitumor products.
Native polyacrylamide gel electrophoresis (PAGE) was employed to show the highest number of esterase loci and to detect alpha- and beta-esterase polymorphisms in leaf buds of Vitis vinifera cultivars. A total of 16 esterase isozymes were detected in leaf buds from 235 plants including Italia, Rubi, Benitaka, and Brasil cultivars. Biochemical characterization of the grape esterases using ester substrates revealed alpha-, beta-, and alpha/beta-esterases with inhibitor tests distinguishing both carboxylesterases (EST-2, EST-3, EST-5, EST-6, EST-7, EST-8, EST-9, EST-10, and EST-16 isozymes) and acetylesterases (EST-4, EST-11, EST-12, EST-13, EST-14, EST-15 isozymes).
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