Bacteriological examination of drinking water in Burdwan, India with reference to coliforms

Chatterjee, None; N, S; Das,; D,; Roy, None; M,; Banerjee, Arpan; S,; Dey, Avishek; P,; Bhattacharya,; T,; Ch,; ', Ra; G, None

doi:10.5897/ajb2007.000-2415

Cited by 46 publications

(54 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…No detectable toxicity effects were observed on O. melastigma individuals exposed to the AgNP-contaminated aquatic environment (post-treatment observation period: 10 days; data not shown). In agreement with our data, previous studies testing other aquatic species, including Gambusia affinis [28,126];), Hoplobatrachus tigerinus [84], Poecilia reticulata [85], Aplocheilus lineatus [127], Carassius auratus (Linneaus) [29], Xenontodon cancila [27], Ctenopharyngodon idella, Cyprinus carpio [30], Oreochromis niloticus niloticus [25,46], Betta splendens, Pseudotropheus tropheops tropheops, Osphronemus goramy Lacépède, and Pterophyllum scalare [45], showed good predatory ability on mosquito larvae under similar testing conditions. Recently, Chobua et al [34] studied G. affinis and C. auratus as control agents of A. gambiae.…”

Section: Impact Of Ag Nanoparticles On Oryzias Melastigma Predationsupporting

confidence: 93%

Do Chenopodium ambrosioides-Synthesized Silver Nanoparticles Impact Oryzias melastigma Predation Against Aedes albopictus Larvae?

et al. 2016

View full text Add to dashboard Cite

The green synthesis of nanopesticides has been recently proposed to improve the efficacy of mosquito control programs. However, limited efforts shed light on the impact of sub-lethal doses of nanopesticides on behavioral traits of mosquito biocontrol agents. We described the synthesis of silver nanoparticles (AgNP) at room temperature using the aqueous extract of Chenopodium ambrosioides, and their high toxicity against the invasive mosquito Aedes albopictus. LC 50 calculated on young instars ranged from 13 ppm (first instar larvae) to 19 ppm (pupae). LC 50 calculated on adults was 14 ppm. The chemical composition of the C. ambrosioides extract was characterized by GC-MS analysis.

show abstract

Section: Impact Of Ag Nanoparticles On Oryzias Melastigma Predationsupporting

confidence: 93%

Do Chenopodium ambrosioides-Synthesized Silver Nanoparticles Impact Oryzias melastigma Predation Against Aedes albopictus Larvae?

et al. 2016

View full text Add to dashboard Cite

show abstract

“…[7] About 30-100% of spore formers in phyllosphere samples were found to be B. thuringiensis. [8] Owing to the endospores' omnipresence, their exploitability in mankind's interest and their potential to act as delivery vehicles for animal pathogens, a wide range of endeavours have been made to fathom various aspects of spore-forming bacteria. The attention has been focused, inter alia, on the processes of sporulation, [9 -11] germination, [12 -14] the structure and composition of the endospores along with extrachromosomally encoded phenotypes such as the Bacillus anthracis toxins, [15 -17] the assessment of various inactivation methods [18 -20] and the investigation of the phylogenetic relationship of Bacilli species by means of gene sequencing.…”

Section: Introductionmentioning

confidence: 99%

Effect of supplementary manganese on the sporulation of Bacillus endospores analysed by Raman spectroscopy

Stöckel

Meisel

Böhme

et al. 2009

J Raman Spectroscopy

View full text Add to dashboard Cite

It is a common practice in microbiology to induce and accelerate sporulation of spore-forming bacteria by adding small amounts of divalent manganese to the cultivation medium. By micro-Raman spectroscopy the effect of supplementary divalent manganese during the growth and sporulation of Bacillus spp. bacteria was studied. The spectral alterations in the Raman spectra of single endospores due to this cultivation parameter comprised slight alterations of the bands attributed to intracellular, abundantly present calcium dipicolinate (CaDPA). Those signals suffered a loss of intensity or partial band broadening because of the appearance of new weak signals next to them. Exclusively in Raman spectra of single B. sphaericus endospores, the band at 1485 cm −1 vanished. The theoretical spectra of CaDPA and manganese dipicolinate (MnDPA) were calculated and compared with the experimental spectra to prove the hypothesis that, while the overall intracellular DPA content decreased, an intracellular assembly of MnDPA in the endospores might also occur. Band shifts of the COO − vibrations in the salt's spectra as well as in the endospore's spectra, and the decrease of the two CaDPA bands, confirmed this proposal. The appearance of the 1030 cm −1 band in all Bacillus spectra as well as the disappearance of the 1485 cm −1 band in the B. sphaericus spectra still needs to be clarified. With the help of two multivariate chemometric methods, these spectral alterations allowed discrimination between single endospores of different Bacillus strains cultivated on normal nutrient agar (NA) and those grown on NA with MnSO 4 · xH 2 O addition. With these investigations, a possible strategy is shown to trace back the cultivation environment of matured single endospores. Utilizing the joint concept of micro-Raman spectroscopy and chemometric analysis, the differentiation between natively grown endospores and those cultivated in a laboratory with the help of manganous salts as a common sporulation accelerator seems accomplishable.

show abstract

“…In the present study, al. [16,17,18] www.wjpps.com studies by several researchers, [19,20,21] The source of contamination is well documented by…”

Section: Standard Plate Count (Spc)mentioning

confidence: 99%

Microbial Quality of Raw Cow Milk Sample Collected From Upparapalayam and Aarikkamedu Villages of Thiruvallur District, Tamilnadu, South India

Kavitha¹

2017

WJPPS

View full text Add to dashboard Cite

Milk of cows has long been considered a highly nutritious and valuable human food, and is consumed by million daily in a variety of different products. Milk being nutritious food for human beings, also serves as a good medium for the growth of many microorganisms. Raw milk, as it and microbiological quality of each sample was analyzed using standard procedures. The MBRT values, Standard plate count and total coliforms were significantly above the normal recommended levels were observed in the current study. This may be due to poor milk handling practices during milking, poor animal health services, and use of poor potable water.High microbial counts and the occurrence of pathogens are likely to affect the keeping quality and safety of raw milk as well as products derived from it. The achievement of hygiene in dairy farm directly influences the production oriented economic results and health safety perspectives in human beings. It is therefore critically important to ensure high quality raw milk production from healthy animals under good hygienic conditions and to apply control measures to protect human health.

show abstract

Bacteriological examination of drinking water in Burdwan, India with reference to coliforms

Cited by 46 publications

References 1 publication

Do Chenopodium ambrosioides-Synthesized Silver Nanoparticles Impact Oryzias melastigma Predation Against Aedes albopictus Larvae?

Do Chenopodium ambrosioides-Synthesized Silver Nanoparticles Impact Oryzias melastigma Predation Against Aedes albopictus Larvae?

Effect of supplementary manganese on the sporulation of Bacillus endospores analysed by Raman spectroscopy

Microbial Quality of Raw Cow Milk Sample Collected From Upparapalayam and Aarikkamedu Villages of Thiruvallur District, Tamilnadu, South India

Contact Info

Product

Resources

About