scholarly journals Analysis of biochemical and nutritional constituents of different size groups of Macrobrachium malcolmsonii (Milne-Edwards, 1844) (Decapoda: Palaemonidae) for the identification of its nutritional requirements

2017 ◽  
Vol 4 (8) ◽  
pp. 307-316
Author(s):  
Thirumurugan Ramasamy ◽  
Arun Sridhar ◽  
Rajkumar Krishnasamy Sekar ◽  
Sathya Deepika Murugesan
Keyword(s):  
Tamil Nadu ◽  
High Performance ◽  
Lower Cost ◽  
Protein Profile ◽  
Freshwater Prawn ◽  
Cauvery River ◽  
Size Groups ◽  
Nutritional Constituents ◽  
Aquaculture Production ◽  
Macrobrachium Malcolmsonii

Prawns have been contributing almost 15% by value in global aquaculture production. In this study, different size groups (4-19 cm) of fresh water prawn, Macrobrachium malcolmsonii (Milne-Edwards, 1844) (Decapoda: Palaemonidae) were collected from the Cauvery River, Tamil Nadu, India, and estimated to identify the protein (P), lipid (L) and carbohydrate (CHO) level. The adult prawns exhibited highest values 61.63% P, 6.95% L and 5.40% CHO. The gas chromatography of small size groups of prawns showed increased amount in various fatty acids such as palmitic acid, stearic acid etc. The tissues result determined by high performance liquid chromatography showed that the amino acids such as Aspartic acid, Lysine etc., are high in adult groups. The protein profile of the muscle samples displayed various polypeptides ranging from 200 to 20 kDa. Results of this study clearly implied the biochemical and nutritional constituents of freshwater prawn, M. malcolmsonii. It would be useful to design the required composition of feed in order to get higher yield at lower cost production.

Evaluation of Gloriosa superba for Yield Attributing Characters and Quantification of Colchicine Originated from Different Agro Climatic Zones of Tamil Nadu and Andhra Pradesh

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Arun Kumar P. ◽  
Elangaimannan R.
Keyword(s):  
Seed Yield ◽  
Tamil Nadu ◽  
High Performance ◽  
Andhra Pradesh ◽  
Crop Improvement ◽  
Mean Value ◽  
Hplc Method ◽  
Gloriosa Superba ◽  
Climatic Zones ◽  
Colchicine Alkaloid

The study was conducted to evolve Gloriosa superba for yield characters and alkalodi content for selecting elite genotypes for comercial exploitatio n. The genotypes were sowm in Variyankaval village, Udayarpalayam taluk of Ariyalur district, Tamil Nadu. The highest mean value for fresh and dry seed yield was observed in Chittor local. The genotype Mulanur local has recorded the highest mean value for number of pods per plant and number of seeds per pod and Arupukotai local excelled the general mean for the traits seeds per pod, fresh and dry seed yield and also for tuber characters. An investigation was carried out to quantify the colchicine (alkaloid) present in tubers by High Performance Liquid Chromatography (HPLC) method. The genotypes collected from Arupukotai recorded the highest colchicine content (0.760 mg/g) followed by Chittoor (0.578 mg/g) and Mulanur (0.496 mg/g) and there by these three genotypes were utilized for further crop improvement.

scholarly journals Occurrence of a Pterygoplichthys disjunctivus (Weber, 1991) population in Cauvery River System, Tamil Nadu, South India

2016 ◽  
Vol 8 (6) ◽  
pp. 62-66 ◽  
Author(s):  
Meena Moorthy ◽  
Sundaramanickam Arumugam ◽  
Thankappan Ajith Kumar Thipramalai
Keyword(s):  
Tamil Nadu ◽  
South India ◽  
River System ◽  
Cauvery River

Quartz surface microtextural studies of Cauvery River sediments, Tamil Nadu, India

2015 ◽  
Vol 8 (12) ◽  
pp. 10665-10673 ◽  
Author(s):  
Natarajan Gobala krishnan ◽  
Raghavendramurthy Nagendra ◽  
Lakshmanan Elango
Keyword(s):  
Tamil Nadu ◽  
River Sediments ◽  
Quartz Surface ◽  
Cauvery River

scholarly journals Biomass to porous carbon in one step: directly activated biomass for high performance CO2 storage

2017 ◽  
Vol 5 (24) ◽  
pp. 12330-12339 ◽  
Author(s):  
Norah Balahmar ◽  
Abdul Salam Al-Jumialy ◽  
Robert Mokaya
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Lower Cost ◽  
Activated Carbons ◽  
Co2 Storage ◽  
Direct Conversion ◽  
Step Process ◽  
One Step ◽  
Hydrothermal Carbonisation ◽  
Activated Biomass

The direct conversion of biomass to activated carbons in a simple and lower cost one step process, which negates the need for hydrothermal carbonisation or pyrolysis, generates activated carbons with properties and CO2 uptake comparable or superior to those of conventionally prepared activated carbons.

Emerging Materials Challenges in Microelectronics Packaging

MRS Bulletin ◽  
2003 ◽  
Vol 28 (1) ◽  
pp. 68-74 ◽  
Author(s):  
D. R. Frear ◽  
S. Thomas
Keyword(s):  
High Performance ◽  
Lower Cost ◽  
Dominant Factor ◽  
Microelectronics Packaging ◽  
Feature Size ◽  
Microelectronic Devices ◽  
Higher Power ◽  
Wireless Telecommunications ◽  
Key Issues ◽  
Rf Electronics

IntroductionThe trend for microelectronic devices has historically been, and will continue to be, toward a smaller feature size, faster speeds, more complexity, higher power, and lower cost. The driving force behind these advances has traditionally been microprocessors. With the tremendous growth of wireless telecommunications, rf applications are beginning to drive many areas of microelectronics that traditionally were led by developments in microprocessors. An increasingly dominant factor in rf microelectronics is electronic packaging, and the materials needed to create the package, because the package materials strongly affect the performance of the electronics. Many challenges remain for the packaging of microprocessors as well. These challenges include increased speed, the number of input/output interconnects, decreased pitch, and decreased cost. This article highlights the key issues facing the packaging of high-performance digital and rf electronics.

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