期刊
APPLIED SCIENCES-BASEL
卷 10, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/app10010417
关键词
Lactobacillus plantarum; antifungal; probiotic; Italian ryegrass; low moisture silage
类别
资金
- Cooperative Research Program for Agriculture Science and Technology Development (Project Title: Development of Quality Improvement and Standardization Technique for Low Moisture Storage Forage), Rural Development Administration, Republic of Korea [PJ01091601]
- National Institute of Animal Science, Rural Development Administration
The study aimed to investigate probiotic characteristics, and low moisture silage fermentation capability of selected lactic acid bacteria (LAB) isolated from Alfalfa (Medicago sativa L). Morphological and physiological properties, carbohydrates fermentation, enzymes, and organic acids production, anti-fungal activity, antibiotic sensitivity patterns, and probiotic characteristics (acidic and bile salt tolerances, hydrophobicity and aggregations natures) of LAB were examined. 16SrRNA sequencing was carried out to identify isolated strains. The identified strains Lactobacillus plantarum (KCC-37) and Lactobacillus plantarum (KCC-38) showed intense antifungal activity, survival tolerant in acidic and bile salt environments, cell surface and auto aggregations ability, enzymes and organic acids productions. At ensiled condition, KCC-37 and KCC-38 enhanced acidification of Italian ryegrass silages by producing a higher amount of lactic acid, a key acid for indicating silage quality with less extent to acetic acid and succinic acid at low moisture level than non-inoculated silages. Notably, the addition of mixed strains of KCC-37 and KCC-38 more potentially enhanced acidification of silage and organic acid productions than the single-culture inoculation. The overall data suggested that these strains could be used as an additive for improving the quality of the fermentation process in low moisture silage with significant probiotic characteristics.
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