International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (920) Last page : (928)
Article doi: : http://dx.doi.org/10.18782/2320-7051.5480

Estimation of Respiratory Dynamics of Fresh Green Chilli (Capsicum annuum L.)

P. S. Grewal¹*, Ashok Kumar², Preetinder Kaur³ and Mohit Singla⁴

^{1, 2,3}Department of Processing and Food Engineering, ⁴School of Renewable Energy Engineering
Punjab Agricultural University, Ludhiana-141004
*Corresponding Author E-mail: grewal829@gmail.com
Received: 20.08.2017  |  Revised: 28.09.2017   |  Accepted: 4.10.2017  

 

 ABSTRACT

The respiratory behavior of fresh green chillies under different temperatures were evaluated to study its respiratory dynamics based upon enzyme kinetics. The dependence of respiration rate on the O₂ and CO₂ concentrations was described assuming the enzyme kinetics model for combined type of inhibition caused by CO₂. Various respiratory parameters viz. maximal O₂ consumption rate Michaelis-Menten constants, inhibition constants under the specified environmental conditions of 5, 10, 15°C and 85% relative humidity (RH) were estimated using non-linear regression technique.It was found that storage temperature had substantial affect on the partial pressures within the closed containers and subsequently the respiration rates. The concentration of O₂ inside the container and surrounding temperature had synergistic effect on the rate of respiration and respiratory parameters. Though the inhibition by evolved CO₂ was observed to be of combined type, it was predominantly competitive at all temperatures. Thus, this study can be utilized for design of modified atmosphere packages for storage of fresh green chillies. It was observed that the respiration rate (oxygen consumption and carbon dioxide evolution rate) increased with increase in temperature.

Key words: Respiration rate, Enzyme kinetics, Mixed inhibition, Green chillies, Modified atmosphere packaging

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Grewal, P.S., Kumar, A., Kaur, P. and Singla, M., Estimation of Respiratory Dynamics of Fresh Green Chilli (Capsicum annuum L.), Int. J. Pure App. Biosci.6(2): 920-928 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5480