Article thumbnail

Lactic acid fermentation of Brassica rapa: chemical and microbial evaluation of a typical Italian product (brovada)

By MAIFRENI M, MARINO M and CONTE L

Abstract

Brovada is an ancient traditional product from the northeast Italian region, included in any list of typical Italian products, which is obtained by natural fermentation of turnips (Brassica rapa). Turnips are cleaned and put in vats, alternating them with a layer of grape skins. Before covering the vat a mix of water and salt or water only is added. The vegetable fermentation is a spontaneous process caused by the microorganisms present on the various components (turnip and grape skins). A total 225 lactic acid bacteria (LAB) and 63 yeasts were isolated during this natural fermentation process. The main heterofermentative population was identified as Lactobacillus spp. while the major homofermentative LAB were Pediococcus spp., Candida spp. was the main yeast present. During the first 24 h of fermentation, the pH decreased rapidly to 3.7. At different steps of fermentation the headspace aroma compounds of brovada were analyzed by solid-phase-micro-extraction/gas chromatography/flame ionization detection to define the characteristic aroma profile of this particular product

Topics: Turnip, Brassica rapa, Vegetable fermentation, Volatile compounds, Lactic acid bacteria
Publisher: 'Springer Science and Business Media LLC'
Year: 2004
DOI identifier: 10.1007/s00217-004-0877-6
OAI identifier: oai:air.uniud.it:11390/856774
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://hdl.handle.net/11390/85... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.