Browsing by Author "Dhanalakshmi, M"

Now showing 1 - 6 of 6
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    ArticleItemOpen Access
    Assessment of milk adulteration in the commercially available milk for the consumers in Cauvery delta region of Tamil Nadu, India
    (2020-05) Dhanalakshmi, M; Balakrishnan, S; Sangeetha, A, et al.,; TANUVAS
    Milk, has not been a exception for the pull strings of millennium developments. In recent years, milk available to the consumer is deviated from its inherent nutritional composition because of rampant adulteration. This study was designed to assess the quality with regards to adulteration in milk which is supplied to consumers in and around the Cauvery delta regions of Tamil Nadu. A total of 75 milk samples were randomly collected from various sources like street vendors, tea shops, restaurants, hotels and commercially available pasteurized milk outlets and tested for the presence of common adulterants like starch, sugar, glucose, detergents, neutralizers, salt and skim milk powder. This study revealed that the presence of detergent (48%), sodium chloride (36%), skim milk powder (29.3%), neutralizer (18%), sugar (12%), starch (8%) and urea (8%). It was found that tea shops happened to be a major source followed by restaurant and hotels. It is concluded that awareness needs to be created among the public about the health hazards of adulterants.
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    PresentationItemOpen Access
    Awareness about zoonotic diseases among the college students in Orathandu region of Tamil Nadu
    (2020-02) Sake Mohammed, S; Balakrishnan, S; Manimaran, K; Sangeetha, A; Dhanalakshmi, M; TANUVAS
    Cauvery delta region is an agricultural based region of Tamil Nadu and these region people are fully engaged with cultivation of paddy crops and animal husbandry activities. Hence, knowledge about zoonotic diseases among young generation is required to control zoonotic diseases. In the present study, a cross sectional survey was conducted using a structural questionnaire to assess the awareness level regarding the presence and type of zoonotic diseases among 100 college students in and around Orathanadu region, Thanjavur district in the year 2019. The survey found 25% of students aware about zoonotic diseases, whereas 75% were not aware. Students those who were aware about zoonotic diseases, 4% of students were aware about rabies and 1% of students were aware about skin problems like dermatophytosis. It is concluded that they wanted to know about zoonotic diseases through regular awareness programme like short film, newspaper and multimedia.
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    ArticleItemOpen Access
    Detection of Multi drug resistance Pseudomonas in meat and milk samples from retail outlets of Chennai region
    (2014-04) Dhanalakshmi, M; Sekar, M; Gunaseelan, L; Bhanu Rekha, V; TANUVAS
    Pseudomonas, an opportunistic pathogen for humans is ubiquitous in nature and also a serious food spoilage organism important in food safety. The presence of this bacterium indicates external contamination which shows improper sanitation in the food chain. Recent findings substantiate that pseudomonas besides causing food spoilage, also helps in spread of some of the zoonotic microaeropillic organisms to flourish in foods of animal origin. In this study, 20 samples of each normal milk, refrigerated milk , chilled meat and 15 mastitis milk samples were examined for presence of pseudomonas. Prevalence of 25% and 35% was reported in refrigerated milk and meat, which indicates post processing contaminant as well as a spoilage organism. Pseudomonas plays a pathogenic role in 15 % of mastitis cases studied. Isolated strains were further studied for their sensitivity to antibiotics which again highlighted problem of resistance. This study revealed the presence of pseudomonas in foods of animal origin with multiple drug resistance which needs immediate attention of food industry.
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    ArticleItemOpen Access
    In-vitro antimicrobial activity of Madhuca indica and Cassia fistula leaves against food-borne pathogens
    (2020) Sangeetha, A; Senthil Kumar, P; Balakrishnan, S; Manimaran, K; Dhanalakshmi, M; Sivakumar, T; TANUVAS
    The antimicrobial activity of ethanol extract of leaves of Madhuca indica and Cassia fistula was tested against food-borne pathogens including two species of Gram-negative bacteria (E. coli O157:H7 and Salmonella enteriditis) and two species of Gram-positive bacteria (Listeria monocytogenes and methicillin–resistant Staphylococcus aureus) using disc diffusion method. In addition, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of plant extracts were determined. In the disc diffusion method, both the plants extracts were effective in reducing the bacterial growth of tested food-pathogens. The zone inhibition of ranged from 16 to 19 mm for Madhuca and 12 to 13 mm for Cassia plant extracts. Madhuca indica extracts were effective in reducing bacteria growth compared to Cassia fistula extracts (p<0.05). The MIC of Madhuca and Cassia plant extracts ranged from 0.6 to 0.8% and 0.9 to 1.1%, respectively whereas MBC of Madhuca and Cassia plant extracts ranged from 1.5 to 1.7% and 2.5 to 2.6%, respectively. The results of the study suggest that the extracts from leaves of both Cassia fistula and Madhuca indica plants could be potentially used as natural food preservatives to control and prevent food-borne pathogens. However, further studies on the toxicities and organoleptic properties of food containing plant extracts are needed before recommending their usage.
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    ThesisItemOpen Access
    Zoonotic Prevalence of Campylobacter by Molecular Methods
    (TANUVAS, 2011) Dhanalakshmi, M; TANUVAS; Sekar, M; Gunaseelan, L; Raj, G. Dhinakar
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    Book chapterItemOpen Access