Physicochemical and flavor characteristics of flavoring agent from mungbean protein hydrolyzed by bromelain

J Agric Food Chem. 2011 Aug 10;59(15):8475-83. doi: 10.1021/jf202006a. Epub 2011 Jul 15.

Abstract

Enzymatic bromelain mungbean meal protein hydrolysate (eb-MPH) was produced from mungbean meal protein isolate (MPI). Enzymatic bromelain, with a known protease activity of 98,652 (unit/g), was used at concentrations of 0, 2, 6, 10, 14 and 18% (w/w) and with hydrolysis times of 0.5, 3, 6, 12, and 24 h. The pH and temperature were controlled at 6.0 and 50 °C, respectively. It was found that the best treatment combination for eb-MPH production by response surface methodology (RSM) was 18% bromelain and a hydrolysis time of 3 h, resulting in the greatest degree of hydrolysis (% DH) and percent yield, with values of 61.04 and 45.63%, respectively. Results also showed that the phenylalanine, tyrosine and leucine contents of the optimally produced eb-MPH were 20.88, 14.50 and 10.93%, respectively. Twelve volatile compounds were identified using gas chromatography mass spectrometry in eb-MPH; benzaldehyde, 2-pentylfuran and furfural were the predominant odorants.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bromelains / chemistry*
  • Chemical Phenomena
  • Fabaceae / chemistry*
  • Flavoring Agents / chemistry*
  • Flavoring Agents / isolation & purification
  • Hydrolysis
  • Plant Proteins / chemistry*
  • Plant Proteins / isolation & purification

Substances

  • Flavoring Agents
  • Plant Proteins
  • Bromelains