Vol. 27 No. 3 (2017)
Artículos de investigación

Evaluation of waste of the cheese industry for the production of 2-phenyl ethanol

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  • Laura Conde-Báez,
  • J. Castro-Rosas,
  • J. R. Villagómez-Ibarra,
  • J. B. Páez-Lerma,
  • C. Gómez-Aldapa
Laura Conde-Báez Universidad Autónoma del Estado de Hidalgo

Bio
J. Castro-Rosas Universidad Autónoma del Estado de Hidalgo
J. R. Villagómez-Ibarra Universidad Autónoma del Estado de Hidalgo
J. B. Páez-Lerma Instituto Tecnológico de Durango
C. Gómez-Aldapa Universidad Autónoma del Estado de Hidalgo

Published 2017-08-02

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How to Cite

Evaluation of waste of the cheese industry for the production of 2-phenyl ethanol. (2017). Acta Universitaria, 27(3), 57-64. https://doi.org/10.15174/au.2017.1227

Abstract

The cheese industries generate two types of whey, sweet (SW) and acid (AW). Few studies have used both types of whey to produce 2-fenilethanol (2-FE), as well as nuclear magnetic resonance (NMR) to determine the percentage of α-β in each type of whey. We assessed the production of 2-phenyl ethanol (2-FE) by Kluyveromyces marxianus using as SW and AW as substrates. Both types of whey were treated at pH 4.8 and pasteurized at 63 °C for 30 min with an initial inoculum of K. marxianus (1×106  CFU/mL). The identification and quantification of 2-PHE was performed by gas chromatography (GC). We then determined the (α-β) lactose by nuclear magnetic resonance (NMR). K. marxianus was capable of producing 2-FE in the two types of whey in obtaining maximum concentrations of 0.44 g/L and 0.32 g/L, respectively. For SW, we found a concentration of β-lactose 82.35%. 

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References