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标题：Influence of the Microalga Chlorella vulgaris on the Growth and Metabolic Activity of Lactobacillus spp. Bacteria
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作者：Sylwia Ścieszka ; Elżbieta Klewicka
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2020
卷号：9
期号：7
页码：959-970
DOI：10.3390/foods9070959
出版社：MDPI Publishing
摘要：The aim of this study was to evaluate the effect of the algae Chlorella vulgaris on the growth, acidifying activity, proportion of lactic acid isomers, and enzymatic profile of Lactobacillus brevis (ŁOCK 0944, ŁOCK 0980, ŁOCK 0992, and MG451814) isolated from vegetable silages. The results indicated that adding algae at concentrations of 0.1% (w/v) and 1.5% (w/v) to the Lactobacillus spp. growth medium accelerated the growth of bacteria and thus shortened their phase of logarithmic growth. The acidifying activity of the tested Lactobacillus brevis increased with an increased concentration of algae. Lactobacillus spp. cultured in the presence of Chlorella vulgaris showed higher production of l-lactic acid and lower d-lactic acid production. Moreover, the addition of algae changed the enzymatic activity of lactic acid bacteria; for instance, Lactobacillus brevis ŁOCK 0980 demonstrated more enzymatic activity of valine arylamidase, α-galactosidase, and α-glucosidase. Combining Lactobacillus brevis with the algae Chlorella vulgaris allows for the creation of innovative, functional products which confer favorable properties to the final product and open new horizons for the food industry.
关键词：microalga Chlorella vulgaris ; lactic acid bacteria; total titratable acidity; enzymatic profile; lactic acid isomers; Lactobacillus brevis ; algae microalga Chlorella vulgaris ; lactic acid bacteria ; total titratable acidity ; enzymatic profile ; lactic acid isomers ; Lactobacillus brevis ; algae