scholarly journals Evaluation of Bacillus spp. as dough starters for Adhirasam - A traditional rice based fermented food of Southern India

2015 ◽  
Vol 46 (4) ◽  
pp. 1183-1191 ◽  
Author(s):  
Anvar Hussain Noorul Anisha ◽  
Rangasamy Anandham ◽  
Soon Woo Kwon ◽  
Pandiyan Indira Gandhi ◽  
Nellaiappan Olaganathan Gopal
2021 ◽  
pp. e00836
Author(s):  
Yérobessor Dabiré ◽  
Namwin Siourimè Somda ◽  
Clarisse S. Compaoré ◽  
Iliassou Mogmenga ◽  
Marius K. Somda ◽  
...  

2021 ◽  
Vol 25 (02) ◽  
pp. 409-419
Author(s):  
Vijitra Luang-In

Mental illnesses and cancer deaths have been alarmingly increased in Thailand over the past decade. There is a search for an alternative remedy from natural sources. This work revealed the probiotic attributes of eighteen microbes from Thai fermented food sources, their neurotransmitter-producing capacities and cytotoxic effects. The probiotic attributes were comprehensively assessed by gelatin hydrolysis, antibiotic susceptibility, auto-aggregation, virulence gene detection, hemolytic activity, hydrophobicity determination, bile and acid tolerance. Neurotransmitters were produced from precursors by microbes over 3 days and analyzed by high-throughput LC-MS/MS. Cytotoxic effects of the selected microbial extracts on MCF-7, HepG2, and HeLa were determined using MTT assay. The results showed that only seven strains; Enterococcus casseliflavus 3.10A1, Enterobacter xiangfangensis 4A-2A3.1, Saccharomyces cerevisiae TC6, Pedicoccus pentosaceus WS11, Lactococcus lactis subspp. lactis TBRC 375, Lactobacillus brevis TBRC 3003 and Bifidobacterium adolescentis TBRC 7154 exhibited promising probiotic potential in every probiotic assessment. Only E. xiangfangensis 4A-2A3.1 and Bacillus spp. PS15 were capable of producing gamma-aminobutyric acid (GABA) from monosodium glutamate (20 mg/mL). GABA production of 4.60 μg/mL over 2 days was found in E. xiangfangensis 4A-2A3.1; however, Bacillus spp. PS15 produced the highest GABA at 5.57 μg/mL on day 1. Moreover, B. adolescentis TBRC 7154 extract showed the lowest IC50 values against MCF-7 (750.02 μg/mL), HepG2 (681.08 μg/mL), and HeLa (425.50 μg/mL) followed by E. xiangfangensis 4A-2A3.1, E. casseliflavus 3.10A1 and P. pentosaceus WS11. These microbes can be used as probiotic supplement with neurodegeneration preventive or chemopreventive potential. © 2021 Friends Science Publishers


Nature ◽  
2006 ◽  
Author(s):  
Helen Pearson
Keyword(s):  

ENTOMON ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 111-116
Author(s):  
Ankita Gupta ◽  
Namitha George ◽  
P. M. Sureshan

The first Indian species of the genus Callocleonymus Masi viz. C. indiaensis sp. nov., is formally described from Bengaluru in southern India.


Author(s):  
Nguyễn Thị Bích Đào ◽  
Trần Quang Khánh Vân ◽  
Nguyễn Văn Khanh ◽  
Nguyễn Quang Linh

Khi tình hình bệnh hội chứng tôm chết sớm (EMS) đã gây thiệt hại vô cùng to lớn đối với Nuôi trồng thủy sản thì các giải pháp được đề nghị và áp dụng nhằm hạn chế dịch bệnh. Trong đó, việc tìm hiểu và đưa vi khuẩn có lợi để cạnh tranh và ức chế loài vi khuẩn gây bệnh rất được quan tâm, được cho là giải pháp có nhiều triển vọng phù hợp với điều kiện môi trường, đảm bảo sức khỏe cho con người, cũng như hạn chế được dịch bệnh. Đặc biệt, đưa vi khuẩn Bacillus spp. qua đường tiêu hóa của tôm ngay từ khi mới thả đã hạn chế được mật độ vi khuẩn Vibrio. Nghiên cứu này đã phân lập được các chủng Bacillus subtilis B1, Bacillus subtilis B2, Bacillus amyloliquefaciens B4và thử khả năng đối kháng với vi khuẩn Vibrio parahaemolyticus V1 ở các nồng độ 103, 104, 105, 106 CFU theo dõi ở các thời điểm 6h, 12h, 24h, 48h và 72h. Kết quả cho thấy cả ba chủng vi khuẩn Bacillus trên phân lập được đều có khả năng ức chế tốt vi khuẩn Vibrio parahaemolyticus V1, trong đó vi khuẩn Bacillus amyloliquefaciens B4 làtốt nhất với đường kính vòng kháng khuẩn 52,67 ± 4,31mm ở thời điểm 48h; hai chủng Bacillus subtilis B1, Bacillus subtilis B2 lầnlượt là  49,67 ± 3,15 mm, 44,07 ± 5,19 mm, với mức sai số có ý nghĩa thống kê p < 0,05.


2019 ◽  
Vol 31 (1) ◽  
pp. 48-51
Author(s):  
Suha S Hassan ◽  
Nidhal H. Ghaib ◽  
Batool H Al-Ghurabi

Background: The microorganisms can impend the life of health care professional and particularly the dental practitioners. They can be transmitted by different ways like airborne and droplet transmission. The current study was carried out to identify whether the arch wires that received from the manufactures are free from microbial contamination and to determine the bacterial species attached to the arch wires. Materials and Methods: This study involved eighty samples, consisted of two types of arch wires (nitinol and stainless-steel) from four companies (3M, G&H, Jiscop, OrthoTechnology). These wires inserted in a plane tube that contains 10 -ml of (Tris [tris(hydroxymethyl)aminomethane] and EDTA (ethylenediaminetetraacetic acid) tris-EDTA and brain heart infusion (BHI) broth. A 0.1 ml was withdrawn from the tube and spread on agar plates. The control groups consist of 16 plane tube (8 tubes with tris-EDTA and other 8 tubes with (BHI). Results: Microbial sampling yielded growth from 5 of the 80 arch wires. The predominant bacteria that isolated were Bacillus spp. No growth was recovered from 75 of the samples and from controls. The bacteria were isolated by BHI reagent and no growth was observed by tris-EDTA reagent with statistically significant difference (P<0.05). The Bacillus spp. found only in the G&H and Jiscop companies, however, no statistically significant difference was found among them (P>0.05). With regard to the presence and distribution of bacteria according to the types of wires, the present results clarified that cases of contamination with Bacillus spp. were found in the nitinol arch wires with statistically significant difference (P<0.05). Conclusions: The results of the current study revealed low count of bacterial contamination in the two types of companies (G&H and Jiscop). Not all materials that received from the manufactures are free from contamination and an effective sterilization regimen is needed to avoid cross-contamination.


Sign in / Sign up

Export Citation Format

Share Document