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Statistical Approach for the Production of Protease and Cellulase from Bacillus cereus KA3
Mani Kalaiyarasi,
Ponnuswamy Vijayaraghavan,
Subhanandharaj Russalamma Flanet Raj,
Samuel Gnana Prakash Vincent
Issue:
Volume 1, Issue 4, November 2017
Pages:
93-103
Received:
6 May 2017
Accepted:
12 June 2017
Published:
31 July 2017
DOI:
10.11648/j.be.20170104.11
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Abstract: A cheap agro-industrial waste was used as the substrate for the production of protease and cellulase from Bacillus cereus KA3. The process parameters were optimized by a two level full factorial design and response surface methodology. Two level full factorial designs revealed that the factors namely, pH, peptone and NaH2PO4 were significantly influenced on the production of protease and cellulase. These three significant factors were selected for central composite design and response surface methodology. The maximum protease and cellulase production was 3127 U/g, and 482 U/g, respectively, after statistical approach, which showed over fourfold increase in enzyme production than unoptimized medium.
Abstract: A cheap agro-industrial waste was used as the substrate for the production of protease and cellulase from Bacillus cereus KA3. The process parameters were optimized by a two level full factorial design and response surface methodology. Two level full factorial designs revealed that the factors namely, pH, peptone and NaH2PO4 were significantly infl...
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Power Line Carrier Communication Using Automated Meter Reading
R. Gunasekaran,
C. Karthikeyan,
J. Pavalam,
P. Mohanapriya,
A. Preethi,
V. Indhumathi
Issue:
Volume 1, Issue 4, November 2017
Pages:
104-109
Received:
5 April 2017
Accepted:
10 May 2017
Published:
18 August 2017
DOI:
10.11648/j.be.20170104.12
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Abstract: A new concept of Power line Communication. Now human operators do the Meter reading for the consumption of Electricity from house to house and building to building. It requires huge number of labor and takes more time to complete the process. Reading error is a common cause of human operator. Automatic Meter Reading (AMR) becomes an executable option to overcome the problems of huge time taking to get the meter readings, the measured values are in kilo watt-hours (kWh) by energy meter. The supply status of the consumer reading unit we identified the disk rotation of the energy meter. The main advantage of this system is a low cost system that produces very encouraging results and it can be implemented upon existing electro-mechanical meters so there is no need to purchasing new meters AMR is the remote collection of consumption data from customer’s utility meters over power line. Power-Line Communication (PLC) carries data on a conductor that is also used simultaneously for AC electric power distribution to consumers. PLC transmitter is responsible for transmission of data from the provider end. At the provider end, there will be the PLC receiver, which is responsible for data receiving, and this module makes an interface with computer, which is responsible for data processing.
Abstract: A new concept of Power line Communication. Now human operators do the Meter reading for the consumption of Electricity from house to house and building to building. It requires huge number of labor and takes more time to complete the process. Reading error is a common cause of human operator. Automatic Meter Reading (AMR) becomes an executable opti...
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Physical and Mechanical Properties of Talaja Red Onion Cultivar
Mukesh Dabhi,
Nagin Patel
Issue:
Volume 1, Issue 4, November 2017
Pages:
110-114
Received:
8 April 2017
Accepted:
22 April 2017
Published:
21 August 2017
DOI:
10.11648/j.be.20170104.13
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Abstract: The physical and mechanical properties of the onion crop were determined for the Talaja Red variety. The linear relationship was observed between polar diameter and equatorial diameter and also weight of the bulbs. The shape of the onion crop may be considered oval to spherical. The mean bulk density onion was observed 548 kg/m3. The coefficient of friction for galvanized iron, mild steel, aluminum and plywood was found 0.42, 0.39, 0.45 and 0.32 respectively. Also, the angle of repose for galvanized iron, mild steel, aluminum and plywood was found 23, 21, 24 and 17 respectively.
Abstract: The physical and mechanical properties of the onion crop were determined for the Talaja Red variety. The linear relationship was observed between polar diameter and equatorial diameter and also weight of the bulbs. The shape of the onion crop may be considered oval to spherical. The mean bulk density onion was observed 548 kg/m3. The coefficient of...
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