International Journal of Food and Nutritional Sciences
Gender affected sensory attributes with female consumers giving higher scores than male consumers for aroma intensity, initial impression of juiciness and a-typical flavour, and the results may suggest that Windsnyer pork cooked by microwave method could be more acceptable to consumers than Large White pork.
Abstract
Volatile compounds of Lemongrass ( Cymbopogon citratus) cultivated in both Egypt and Madinah, Saudi Arabia, were hydrodistilled and identified using Gas Chromatography-Mass Spectrometry (GC-MS). Fourty-nine components were detected in the Egyptian Lemongrass essential oil, whereas geranial (20.9%), neral (16.2%) and geraniol (8.3%) constitute the major aroma compounds. On the other hand, geranial (37.8%) and neral (33.6%) were the major constituents among 18 compounds identified in Madinah oil. Cymbopogon citrates can be used as an easily source of natural antioxidant and antimicrobial, as well as a possible food supplement and as phytochemical. Antioxidant activity and radical scavenging were investigated using DPPH and β-Carotene linoleic bleaching assays. The obtained results revealed a higher antioxidant activity in Egyptian Lemongrass essential oil with inhibition constant 50, IC 50 1.0 mg ml -1 , in comparison to the Madinah volatile oil IC 50 6.9 mg ml -1 . This is in agreement with total phenolic content which measured for both oils, and in accordance with differences in chemical constituents between them. Fusarium melanoform showed a higher sensitivity against oils in comparison to bacteria types investigated during testing the antimicrobial activity. Egyptian Lemongrass volatile oil has a superior antimicrobial activity than Madinah cultivar essential oil due to its higher phenolic content.