کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4363781 1301577 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lactobacillus reuteri CRL 1100 as starter culture for wheat dough fermentation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Lactobacillus reuteri CRL 1100 as starter culture for wheat dough fermentation
چکیده انگلیسی

The effect of sucrose on the fermentation balance of Lactobacillus reuteri CRL 1100 and the invertase activity of this strain in wheat dough and culture medium (MRSs) was evaluated. The enzyme activity was dependent on the environmental pH releasing glucose and fructose from sucrose hydrolysis. Glucose was used as carbon source, while fructose was mainly used as electron acceptor to produce mannitol up to 10 h of fermentation. Thereafter, fructose seemed to be metabolized by the heterofermentative pathway, which determined an increase in the concentration of acetate (6 mmol l−1), lactate (2 mmol l−1) and ethanol (1 mmol l−1) and the lack of mannitol formation after glucose depletion. The fermentation balance of Lb. reuteri CRL 1100 during the dough fermentation resulted in lower (63%) ethanol, higher (75%) acetate production and soluble carbohydrates concentrations, like MRSs cultures. This fermentation profile would be important to obtain an optimal growth of yeast and the optimal bread flavor and taste.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Microbiology - Volume 25, Issue 2, February 2008, Pages 253–259
نویسندگان
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