Informatics Publishing Limited

Richa Arora ¹, Vinay Chopra ²

Affiliations
1 Mehr Chand Polytechnic College, Jalandhar, State, Punjab, IN
2 DAV Institute of Engineering and Technology, Jalandhar, State Punjab, IN

Abstract

DNA computing, also known as molecular computing,is a new approach to massively parallel computation. It harnesses the enormous parallel computing ability and high memory density of biomolecules,which brings potential challenges and opportunities to traditional cryptography. DNA Steganography is a new field arising with DNA computing research in recent years. Most of the techniques that were implemented were based on modulating a media file to hide the information required to be transmitted. If the transmission is rather continuous in time, one may refer to the technique as a covert communication channel between two parties.Various methods of advanced steganalysis techniques, with varying degrees of success, were developed to detect the existence of such hidden messages in a media file.

In this work, we present an alternative approach to hiding data in text files. We use different DNA-operations and the message is embedded within a vector sequence. The proposed method covers all the words of English Dictionary for framing a message.

Keywords

DNA Computing, DNA Steganography, DNA Vector.

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Harsimrat K. Bons ¹, Gurpreet Kaur Dhillon ², Jagdish Grover ³, Richa Arora ⁴

Affiliations
1 Department of Fruit Science, Punjab Agricultural University, Ludhiana, Punjab - 141 004, IN
2 Regional Research Station, Bathinda, Punjab Agricultural University, Ludhiana, Punjab - 151 001, IN
3 Regional Research Station, Bathinda, Punjab Agricultural University, Ludhiana, Punjab - 151 001
4 Department of Microbiology, Punjab Agricultural University, Ludhiana, Punjab - 141 004, IN

Abstract

Karonda (Carissa carandus Linn) is hardy, indigenous shrub with spines, generally used as bio fence around orchards. It bears small berry like edible fruits with higher nutraceutical value. Mature fruits of karonda are sour and astringent with immense bioactive compounds. Optimization was carried out with Central Composite Design (CCD) for standardizing processing conditions of osmotically dehydrated karonda fruit with respect to three variables viz. sugar concentration (50-70 °Brix), immersion time (1-4 hours) and temperature (35-45 °C) for three responses viz. rehydration ratio, water loss and solute gain. The optimized values for osmotic dehydration of karonda were obtained as 59.81 °Brix, time of 3.58 h and temperature of 44.10 °C with water loss (g/100 g), solute gain (g/100 g) and rehydration ratio as 30.33, 9.19 and 2.60 respectively.

Keywords

Karonda, RSM, Low-Cost Technology, Preservation, Osmotic Drying.

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