کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8890379 1628503 2018 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using brewer's spent grain to formulate culture media for the production of bacteriocins using Patagonian strains
ترجمه فارسی عنوان
با استفاده از دانه غلات بلور برای فرموله کردن محیط کشت برای تولید باکتریوسین با استفاده از سویه های
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی
This study evaluates the use of hemicellulosic hydrolyzates, derived from brewer's spent grain (BSG), as a means of generating bacteriocins. The producer strains, Lactococcus lactis Tw11 and Enterococcus mundtii Tw492, were isolated from animals of Argentine Patagonia. Different culture formulations were tested, and antimicrobial activity was determined against Listeria monocytogenes CECT-934. The presence of Tween 80 allowed the release of bacteriocins produced by both strains, with inhibition halos of 15.46 mm ± 0.05 using L. lactis Tw11, and 24.47 mm ± 0.09 using E. mundtii Tw492. Also, under these conditions the concentration of lactic acid was seen to increase to 3.21 g L−1 ± 0.12 using L. lactis Tw11, yet remained very similar (2.45 g L−1 ± 0.01) with E. mundtii Tw492. The activity of the bacteriocins was scarcely affected by additional supplementation with salts. This research suggests that BSG and other similar materials can be used in the production of bacteriocins employing ecofriendly methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Volume 96, October 2018, Pages 166-174
نویسندگان
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