Type

Journal Article

Authors

R. Paul Ross
Colin Hill
Wilco C Meijer
Johannes B Brandsma
Kieran N. Kilcawley
Siobhan P Ryan
John Hannon
L Mariela Serrano
Alleson Dobson
Susan Mills
and 1 others

Subjects

Chemistry

Topics
cheese hydrogen sulfide volatile compounds sensory analysis hydrogen production lactobacillus novel the sulfur compounds

Contribution of the novel sulfur-producing adjunct Lactobacillus nodensis to flavor development in Gouda cheese. (2016)

Abstract We assessed the efficacy of Lactobacillus nodensis CSK964 as an adjunct culture in Gouda cheese under various industrial conditions. We set up 4 different systems: a direct vat inoculum with and without adjunct using the calf rennet Kalase, and an undefined bulk starter culture with and without adjunct using the microbial rennet Milase (both rennets from CSK Food Enrichment, Ede, the Netherlands). During ripening, we subjected the cheeses to the following analyses: viability of starter and adjunct cells, composition, proteolysis, and flavor development by detection of sulfur compounds and descriptive sensory analysis. In general, the presence of Lb. nodensis increased secondary proteolysis and influenced cheese flavor, particularly in relation to volatile sulfur compounds; hydrogen sulfide and methanethiol were present in higher abundances in cheeses containing Lb. nodensis. The primary starter also influenced the range of volatile sulfur compounds produced. Methanethiol and dimethyl disulfide were more abundant in the nisin-producing direct vat inoculum cheese with adjunct; hydrogen sulfide was more prevalent when bulk starter culture was used with Lb. nodensis. Sensory analysis revealed that the direct vat inoculum cheese with adjunct scored significantly better in terms of smell and taste than the direct vat inoculum cheese without adjunct and lacked the dominant sulfur flavors of the bulk starter cheese with adjunct. Subsequent analysis using lead acetate paper and modified motility broth as indicators of hydrogen sulfide production confirmed that Lb. nodensis produced hydrogen sulfide in broth and in the cheese matrix. This study suggests that the inclusion of Lb. nodensis as an adjunct culture can significantly alter the flavor profile of the final cheese. However, the selection of a suitable primary starter is imperative to ensure a desirable product.
Collections Ireland -> Teagasc -> PubMed

Full list of authors on original publication

R. Paul Ross, Colin Hill, Wilco C Meijer, Johannes B Brandsma, Kieran N. Kilcawley, Siobhan P Ryan, John Hannon, L Mariela Serrano, Alleson Dobson, Susan Mills and 1 others

Experts in our system

1
R Paul Ross
Teagasc
Total Publications: 441
 
2
Colin Hill
University College Cork
Total Publications: 351
 
3
Wilco C Meijer
University College Cork
 
 
5
J A Hannon
Teagasc
Total Publications: 4
 
6
L Mariela Serrano
University College Cork
Total Publications: 3
 
7
Susan Mills
Teagasc
Total Publications: 15