Effect of microwave heating time on some bioactive compounds of parsley (Petroselinum crispum) and dill (Anethum graveol
Journal Title: Scientific Journal of Pure and Applied Sciences - Year 2013, Vol 2, Issue 5
Abstract
The aim of this study was to assess the effect of microwave heating time on some bioactive compounds of parsley (Petroselinum crispum) and dill (Anethum graveolens) leaves. Water blended parsley and dill were heated for one, two and three min. Total phenols, chlorophyll, carotenoids, antioxidant activity and color indices were determined before and after treatment. Dill leaves had higher total phenols, chlorophyll, carotenoid and antioxidant activity (1287.00 mg / 100g, 33.97 mg/kg, 45.98 mg/kg and 48.14%, respectively) than parsley leaves (1031.39 mg / 100g, 32.47 mg/kg, 40.00mg/kg and 40.10%, respectively). Total phenols and antioxidants activity of water blended parsley leaves were decreased after 2 min by 32.4 and 8%, as well as after 3 min by 80.2 and 38.27% respectively compared to the unheated sample. Meanwhile, total phenols and antioxidants activity of dill sample recorded 23.7and 30.3% decrease after 2 min reached to 33.0 and 54.8% after 3 min. This work indicated that most of the bioactive compounds of parsley and dill were stable only after one min of microwave heating, however, after 3 min of heating a marked decrease was observed in the tested parameters.
Authors and Affiliations
S. M. Kamel| Food Technology Research Institute, Agricultural Research Center, Giza, Egypt. Department of Food and Nutrition Sciences, College of Agriculture and Food Science, King Faisal University, Saudi Arabia.
Keywords
Related Articles
- EP ID EP287
- DOI -
- Views 495
- Downloads 23
On invariant speed of light
A new physical model of the appearance of light, properties, and its trajectory. Explains the paradox of invariance and isotropy of light based on the laws of classical physics.
Explicit difference method for solving the two-dimensional two-sided fractional diffusion equation in the shifted grunwa
In this paper, weintroduce and discuss an algorithm for the numerical solution oftwo-dimensional two-sided fractional diffusion equation. The algorithm for thenumerical solution of this equation is based on explicit fi...
Application of piezoceramic transducers for 3D Impedance modelling in damage assessment of plate
Cost-effective and reliable damage detection models are crucial for successful monitoring of any ancient or modern age engineering structure. Piezoceramic transducers (PZT) based electromechanical impedance (EMI) metho...
Investigating factors affecting the efficiency of gas turbine power cycle
Today, the use of gas turbines in power generation cycles has been growing. Small size, easy installation, high power-to-mass ratio and the ability to load and unload the cycle quickly are the advantages of such system...
Impact of political stability on the macroeconomic variables and FDI of Pakistan
In this paper we have discussed the vital role of political stability on the link between macroeconomic variables and FDI. For this purpose we have used a data of year 1991 to 2011. In this empirical analysis we have u...