Listeria monocytogenes is a foodborne pathogen of significant concern to the agricultural and foo... more Listeria monocytogenes is a foodborne pathogen of significant concern to the agricultural and food processing industry because of its ability to grow and persist in cool and moist environments and its association with listeriosis, a disease with a very high mortality rate. Although there have been no listeriosis outbreaks attributed to fresh mushrooms in the United States, retail surveys and recalls are evidence that L. monocytogenes contamination of mushrooms (Agaricus bisporus) can occur. The objective of this study was to determine the prevalence of Listeria spp., including L. monocytogenes, in a small-scale mushroom production facility on the campus of the Pennsylvania State University in the United States. Of 184 samples taken from five production zones within the facility, 29 (15.8%) samples were positive for Listeria spp. Among the Listeria spp. isolates, L. innocua was most prevalent (10.3%) followed by L. welshimeri (3.3%), L. monocytogenes (1.6%), and L. grayi (0.5%). L. m...
Aflatoxin M(1) (AFM(1)) is a toxic metabolite found in the milk of lactating animals which have c... more Aflatoxin M(1) (AFM(1)) is a toxic metabolite found in the milk of lactating animals which have consumed feedstuffs contaminated with aflatoxin B(1). Ultra high temperature treated (UHT) milk is a product which is becoming popular in developing countries like India as there is a lack of proper cold storage or refrigeration facilities. In this study, 45 samples of UHT milk of popular brands prevalent in the market were analyzed for the presence of AFM(1) by reversed phase HPLC using fluorescent detector after cleanup of sample with immunoaffinity columns. All samples of plain UHT milk were positive for AFM(1) and 38% of these contained levels more than 0.5 μg/kg, the maximum permitted limit prescribed by the Codex Alimentarius Commission and by the mandatory regulations of the country, the FSSAI Regulations, 2011. In 62.5% of flavored UHT milk, AFM(1) was below detectable levels (0.02 μgL(-1)). However, 12.5% of these samples also contained levels exceeding the maximum permitted limits. AFM(1) was present in 61.6% of the 52 raw milk samples analyzed from the two states of Karnataka and Tamilnadu with a range of 0.1-3.8 μgL(-1). 17.3% of these samples also exceeded the regulatory limits of the country.
Rain Tree (Pithecolobium saman Bentham) kernels, rich in fermentable sugars were employed for met... more Rain Tree (Pithecolobium saman Bentham) kernels, rich in fermentable sugars were employed for methane generation through anaerobic digestion using 20-l biodigestors under a semi-continuous feeding mode. A loading rate of 45 g/l/d resulted in the accumulation of volatile fatty acids ( ...
In order to determine biogas potential of defatted silk worm pupae waste, anaerobic batch digesti... more In order to determine biogas potential of defatted silk worm pupae waste, anaerobic batch digestion was carried out in a 1-l bioreactor and, based on the results, further experiments were conducted in a 20-l KVIC (Khadi and Village Industries Commission) type digester under semi-...
... RS Jagadish a , KN Divyashree b , Prema Viswanath b , P. Srinivas c and Baldev Raj a , Corres... more ... RS Jagadish a , KN Divyashree b , Prema Viswanath b , P. Srinivas c and Baldev Raj a , Corresponding Author Contact Information , E-mail The ... In this context, chitosan films have shown a great promise in their application in food preservation ([Dutta et al., 2009], [Ravi Kumar et ...
... How to Cite. VIJAYALAKSHMI, NS, INDIRAMMA, AR, VISWANATH, P., DATTATREYA, A. and KUMAR, KR (2... more ... How to Cite. VIJAYALAKSHMI, NS, INDIRAMMA, AR, VISWANATH, P., DATTATREYA, A. and KUMAR, KR (2005), EXTENSION OF THE SHELF-LIFE OF BURFI BY PACKAGING. ... This ultimately results in poor keeping quality with unpredictable shelf life (Suresh and Jha 1994). ...
The effect of feeding different fruit and vegetable wastes, mango, pineapple, tomato, jackfruit, ... more The effect of feeding different fruit and vegetable wastes, mango, pineapple, tomato, jackfruit, banana and orange, was studied in a 60-liter digester by cycling each waste every fifth day in order to operate the digester as and when there was supply of feed. The characteristics of the anaerobically digested fluid and digester performance in terms of biogas production were determined at different loading rates (LR) and at different hydraulic retention times (HRT), and the maximum biogas yield of 0·6 m3/kg VS added was achieved at a 20-day HRT and 40 kg TS m−3 day−1 loading rate. The hourly gas production was observed in the digesters operated at 16 and 24 days HRT. The major yield (74·5%) of gas was produced within 12 h of feeding at a 16-day HRT whereas at a 24-day HRT only 59·03% of the total gas could be obtained at this time.
Journal of Food Science and Technology-mysore, 2011
Besan, the flour of Bengal gram (Cicer arietinum Linn), a legume, is a popular ingredient of many... more Besan, the flour of Bengal gram (Cicer arietinum Linn), a legume, is a popular ingredient of many culinary dishes in India. Because of its high demand, its flour is often adulterated by that of other legumes, such as, Lathyrus sativus (lathyrus) or Pisum sativum (pea) by unscrupulous traders. There are chemical methods of paper chromatography and HPLC by which the
Listeria monocytogenes is a foodborne pathogen of significant concern to the agricultural and foo... more Listeria monocytogenes is a foodborne pathogen of significant concern to the agricultural and food processing industry because of its ability to grow and persist in cool and moist environments and its association with listeriosis, a disease with a very high mortality rate. Although there have been no listeriosis outbreaks attributed to fresh mushrooms in the United States, retail surveys and recalls are evidence that L. monocytogenes contamination of mushrooms (Agaricus bisporus) can occur. The objective of this study was to determine the prevalence of Listeria spp., including L. monocytogenes, in a small-scale mushroom production facility on the campus of the Pennsylvania State University in the United States. Of 184 samples taken from five production zones within the facility, 29 (15.8%) samples were positive for Listeria spp. Among the Listeria spp. isolates, L. innocua was most prevalent (10.3%) followed by L. welshimeri (3.3%), L. monocytogenes (1.6%), and L. grayi (0.5%). L. m...
Aflatoxin M(1) (AFM(1)) is a toxic metabolite found in the milk of lactating animals which have c... more Aflatoxin M(1) (AFM(1)) is a toxic metabolite found in the milk of lactating animals which have consumed feedstuffs contaminated with aflatoxin B(1). Ultra high temperature treated (UHT) milk is a product which is becoming popular in developing countries like India as there is a lack of proper cold storage or refrigeration facilities. In this study, 45 samples of UHT milk of popular brands prevalent in the market were analyzed for the presence of AFM(1) by reversed phase HPLC using fluorescent detector after cleanup of sample with immunoaffinity columns. All samples of plain UHT milk were positive for AFM(1) and 38% of these contained levels more than 0.5 μg/kg, the maximum permitted limit prescribed by the Codex Alimentarius Commission and by the mandatory regulations of the country, the FSSAI Regulations, 2011. In 62.5% of flavored UHT milk, AFM(1) was below detectable levels (0.02 μgL(-1)). However, 12.5% of these samples also contained levels exceeding the maximum permitted limits. AFM(1) was present in 61.6% of the 52 raw milk samples analyzed from the two states of Karnataka and Tamilnadu with a range of 0.1-3.8 μgL(-1). 17.3% of these samples also exceeded the regulatory limits of the country.
Rain Tree (Pithecolobium saman Bentham) kernels, rich in fermentable sugars were employed for met... more Rain Tree (Pithecolobium saman Bentham) kernels, rich in fermentable sugars were employed for methane generation through anaerobic digestion using 20-l biodigestors under a semi-continuous feeding mode. A loading rate of 45 g/l/d resulted in the accumulation of volatile fatty acids ( ...
In order to determine biogas potential of defatted silk worm pupae waste, anaerobic batch digesti... more In order to determine biogas potential of defatted silk worm pupae waste, anaerobic batch digestion was carried out in a 1-l bioreactor and, based on the results, further experiments were conducted in a 20-l KVIC (Khadi and Village Industries Commission) type digester under semi-...
... RS Jagadish a , KN Divyashree b , Prema Viswanath b , P. Srinivas c and Baldev Raj a , Corres... more ... RS Jagadish a , KN Divyashree b , Prema Viswanath b , P. Srinivas c and Baldev Raj a , Corresponding Author Contact Information , E-mail The ... In this context, chitosan films have shown a great promise in their application in food preservation ([Dutta et al., 2009], [Ravi Kumar et ...
... How to Cite. VIJAYALAKSHMI, NS, INDIRAMMA, AR, VISWANATH, P., DATTATREYA, A. and KUMAR, KR (2... more ... How to Cite. VIJAYALAKSHMI, NS, INDIRAMMA, AR, VISWANATH, P., DATTATREYA, A. and KUMAR, KR (2005), EXTENSION OF THE SHELF-LIFE OF BURFI BY PACKAGING. ... This ultimately results in poor keeping quality with unpredictable shelf life (Suresh and Jha 1994). ...
The effect of feeding different fruit and vegetable wastes, mango, pineapple, tomato, jackfruit, ... more The effect of feeding different fruit and vegetable wastes, mango, pineapple, tomato, jackfruit, banana and orange, was studied in a 60-liter digester by cycling each waste every fifth day in order to operate the digester as and when there was supply of feed. The characteristics of the anaerobically digested fluid and digester performance in terms of biogas production were determined at different loading rates (LR) and at different hydraulic retention times (HRT), and the maximum biogas yield of 0·6 m3/kg VS added was achieved at a 20-day HRT and 40 kg TS m−3 day−1 loading rate. The hourly gas production was observed in the digesters operated at 16 and 24 days HRT. The major yield (74·5%) of gas was produced within 12 h of feeding at a 16-day HRT whereas at a 24-day HRT only 59·03% of the total gas could be obtained at this time.
Journal of Food Science and Technology-mysore, 2011
Besan, the flour of Bengal gram (Cicer arietinum Linn), a legume, is a popular ingredient of many... more Besan, the flour of Bengal gram (Cicer arietinum Linn), a legume, is a popular ingredient of many culinary dishes in India. Because of its high demand, its flour is often adulterated by that of other legumes, such as, Lathyrus sativus (lathyrus) or Pisum sativum (pea) by unscrupulous traders. There are chemical methods of paper chromatography and HPLC by which the
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