Culturable Bacterial Community on Leaves of Assam Tea (Camellia sinensis var. assamica) in Thailand and Human Probiotic Potential of Isolated Bacillus spp
| Autor: | Wirapong Futui, Patthanasak Rungsirivanich, Vipanee Chumsai-Na-Ayudhya, Chaowarin Yodsombat, Witsanu Supandee, Narumol Thongwai |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Microbiology (medical)
Veterinary medicine antibiotic resistance Firmicutes medicine.disease_cause Microbiology law.invention Actinobacteria diversity 03 medical and health sciences Probiotic law Virology medicine surface hydrophobicity Camellia sinensis lcsh:QH301-705.5 030304 developmental biology microecosystem 0303 health sciences biology 030306 microbiology food and beverages Miang biology.organism_classification bacterial adhesion lcsh:Biology (General) Microbial population biology probiotics Staphylococcus aureus Vero cells Fermentation Proteobacteria |
| Zdroj: | Microorganisms Volume 8 Issue 10 Microorganisms, Vol 8, Iss 1585, p 1585 (2020) |
| ISSN: | 2076-2607 |
| DOI: | 10.3390/microorganisms8101585 |
| Popis: | Assam tea plants (Camellia sinensis var. assamica) or Miang are found in plantations and forests of Northern Thailand. Leaf fermentation has been performed for centuries, but little information is available about their associated microbial community. One hundred and fifty-seven bacterial isolates were isolated from 62 Assam tea leaf samples collected from 6 provinces of Northern Thailand and classified within the phyla of Firmicutes, Actinobacteria, and Proteobacteria. Phayao and Phrae provinces exhibited the highest and the lowest bacterial diversities, respectively. The bacterial community structural pattern demonstrated significant differences between the west and the east sides. Since some Bacillus spp. have been reported to be involved in fermented Miang, Bacillus spp. isolated in this study were chosen for further elucidation. Bacillus siamensis ML122-2 exhibited a growth inhibitory effect against Staphylococcus aureus ATCC 25923 and MRSA DMST 20625, and the highest survival ability in simulated gastric and intestinal fluids (32.3 and 99.7%, respectively), autoaggregation (93.2%), cell surface hydrophobicity (50.0%), and bacterial adherence with Vero cells (75.8% of the control Lactiplantibacillusplantarum FM03-1). This B. siamensis ML122-2 is a promising probiotic to be used in the food industry and seems to have potential antibacterial properties relevant for the treatment of antibiotic-resistant infections. |
| Databáze: | OpenAIRE |
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