Document Detail


Lactobacillus plantarum and Pediococcus pentosaceus starter cultures as a tool for microflora management in malting and for enhancement of malt processability.
MedLine Citation:
PMID:  16719505     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Lactobacillus plantarum VTT E-78076 (E76) and Pediococcus pentosaceus VTT E-90390 (E390) starter cultures were added to the steeping water of normal malting barley in order to balance the microbial community and to enhance malt processability. In this study, we also investigated the effects of lactic acid-acidified MRS-spent medium (MRS-LA) on malting performance. Malting trials with five different two-row barley varieties were carried out in 25 kg pilot scale. The starter cultures promoted yeast growth during malting and restricted the growth of harmful bacteria and Fusarium fungi. Furthermore, they had positive effects on malt characteristics. Reduction in wort viscosity and beta-glucan content and enhanced xylanase and microbial beta-glucanase activities were observed. Starter cultures notably improved lautering performance. Some of the beneficial effects were due to the lactic acid and low pH, as similar effects were obtained with MRS-LA. Starter cultures offer a tool for tailoring of malt properties.
Authors:
Arja Laitila; Hannele Sweins; Arvi Vilpola; Erja Kotaviita; Juhani Olkku; Silja Home; Auli Haikara
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  54     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-05-24     Completed Date:  2006-06-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3840-51     Citation Subset:  IM    
Affiliation:
VTT Technical Research Centre of Finland, P.O. Box 1000, FI-02044 VTT, Raisio plc, Research and Development, P.O. Box 101, FI-21201 Raisio, Finland. arja.laitila@vtt.fi
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MeSH Terms
Descriptor/Qualifier:
Cereals / metabolism*,  microbiology*
Food Handling / methods*
Hordeum / metabolism,  microbiology
Lactobacillus plantarum / metabolism*
Pediococcus / metabolism*

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