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23. Haemato-Biochemical Changes in Canine Demodicosis

Author

Thakur, Moneesh, primary, Prasad, Hriyadesh, additional, Sarma, Kalyan, additional, Thakur, Radhika, additional, Samanta, A.K., additional, Debbarma, Albert, additional, Bhowmik, Arindam, additional, Debnath, Prasenjit, additional, and Deka, Abhijit, additional

Published
2018
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44. Enzyme and silicone treatments on jute fibre. Part I: Effect on textile-related properties.

Author

Samanta, A.K., Basu, G., and Ghosh, P.

Subjects
JUTE fiber, ENZYMES, TEXTILE fibers, SILICONES, REACTION mechanisms (Chemistry), COTTON textiles
Abstract

The present study relates to broad-based assessment of softening of raw jute and selectively pretreated jute fibres under the action of mixed enzymes (cellulase, xylanase and pectinase) and a textile grade aminosilicone softener and to further assess how such selective treatments finally contribute in enhancing some textile-related properties. Application of 4% mixed enzyme on jute fibre at 55°C for 2 h at pH 4.8 offers much finer, softer, cleaner and brighter jute fibre with some lowering of bundle tenacity. However, pretreatment of jute fibre under combined oxidative action of 3% H2O2 and 0.75% K2S2O8 for 2 h at 30°C (pH 11) followed by subsequent treatment with 1% mixed enzyme offers a better balance of textile-related properties covering moisture regain, fineness, bundle tenacity, flexural rigidity, surface reflectance, whiteness index, yellowness index and brightness index. Treatments of jute fibre with 0.5-1% aminosilicone softener under a specified condition also make jute fibre much softer, smoother, brighter and cause noticeable reduction in coefficient of friction without much change in bundle tenacity. However, keeping all textile-related properties in view, a preatment of conventional 3% H2O2 bleaching for 2 h at 85°C (pH 11) or an oxidative treatment under combined action of 3% H2O2 and 0.75% K2S2O8 for 2 h at 30°C (pH 11) prior to 1% aminosilicone treatment of jute fibre were found to be much useful for textile purpose. [ABSTRACT FROM AUTHOR]

Published
2008
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46. Growth Performance of Lambs Fed on Nithyasree Hybrid and Quality Protein Maize Based Ration.

Author

Senani, S., Elangovan, A.V., Gowda, N.K.S., Samanta, A.K., Sridhar, Manpal, and Kolte, Atul P.

Abstract

This article presents a study which evaluated quality protein maize (QPM), nithyasree hybrid (NH) and commercial maize based diets on the performance of lambs. The treatment diets used in the study included ragi straw as basal feed and a concentrate mixture. Researchers concluded that the feeding and digestion trials did not reaffirm the assumption that QPM and NH based diets would result in a superior performance.

Published
2012

49. Application of single and mixture of selected natural dyes on cotton fabric: A scientific approach.

Author

Samanta, A.K., Singhee, Deepali, and Sethia, Mitu

Abstract

Cotton fabric was dyed with four different natural dyes using pre-, post- and simultaneous-mordanting techniques. Aluminum sulphate was used as a mordant. Some samples were also dyed with a combination of turmeric with madder or red-sandalwood and a combination of myrobolan with madder or red-sandalwood in different proportions. Selected mordanted and dyed samples were after-treated with a cationic dye fixing agent. Turmeric gave maximum color strength when applied by the simultaneous-mordanting method, either singly or in combination with other dyes. Turmeric also showed poor wash fastness, which was improved to some extent by after-treatment with a cationic dye fixing agent and by the combination of turmeric with other dyes with better fastness. Myrobolan, when combined with other dyes, gave higher color strength when applied by the post-mordanting method.

Published
2003

50. Enzyme treatment on jute - Effect of resin treatment.

Author

Chattopadhyay, S.N., Sanyal, S.K., Day, A., and Samanta, A.K.

Abstract

Enhancement of enzyme activity on grey bleached and scoured bleached jute fabric produces substantial loss of weight after the treatment. As a result of this enzymolysis, pore volume increases and as a consequence lignin surface exposure also increases. Due to increase in pore volume, large resin molecules enter the pore easily and make a crosslink with lignin rapidly on the exposed lignin surface. This increased reactivity of resin on enzyme treated fabric produces a larger crosslinking reaction which is manifested by a 25% increase in crease recovery angle. Moisture regain value and abrasion resistance decreases after resin treatment. Resin treatment causes a substantial drop in tensile strength, but dimensional stability improve appreciably. [ABSTRACT FROM AUTHOR]

Published
2001

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