P Muthukumaran

Abstract

The present study was aimed to analysis of bioactive constituents of Papaver somniferum (Poppy seed). The ethanol extract of the seeds were subjected to Phytochemical Screening, Gas chromatography- mass spectroscopic (GC-MS) and Fourier transform infrared spectroscopy (FTIR) analysis. GC-MS analysis of the seeds was performed using a Scion 436- GC Bruker model nd Interpretation on mass spectrum GC-MS was conducted using the database of National Institute Standard and Technology (NIST) and IR spectrum was recorded in spectrophotometer (Shimadzu, IR Affinity1, Japan). Phytochemical screening for seeds extracts indicated the presence of various secondary metabolites like Alkaloid, Cardiac Glycosides, Flavonoid, Phytosterols and Terpenoids. GC-MS analysis of compounds with totally, Thirty Nine volatile compounds major chemical compounds were identified, such as 9-Octadecynoic acid(30.72%), 9-Tetradecen-1-ol, acetate, (E)- (24.02%), 9,12-Octadecadienoic acid, methylester, (E,E)- (7.82%), cis-9,10-Epoxyoctadecan-1-ol (7.43%) and Undec-10-ynoic acid(4.36%). FT-IR analysis of peak values with various functional compounds such as alcohols, phenols, carboxylic acids, aldehydes, amides, amino acids, anhydrides, esters, ketones, Unsaturated aliphatics, aromatics, unsaturated heterocycles, amines, Nitro compound, Alkanes, alkenes, sugars,Sulphur, phosphorus, and fluorine compounds. The present results concluded that the phytochemicals was observed in ethanol extract which revealed that the Papaver somniferum (Poppy seed) is potential use in different fields namely medical and pharmaceuticals and greatly valuable in medicinal practice for the treatment of several human aliments. Keywords: GC-MS, FT-IR, Papaver somniferum L and NIST.

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Abstract

Nanotechnology plays a vital role in the development of biosensors. The sensitivity and performance of biosensors are better-quality by using nanomaterials through new signal transduction technologies. The food products which are spoiled exhibit odours, colours or other sensory characteristics which can be easily discerned by consumers. But when the foods are packed, the packaging material prevent sensory exposure from the foods and hence consumers must trust on expiry dates provided by producers based on a set of idealized assumptions about the way that the food is stored or transported. Nanosensors offer solutions to this problem through their unique chemical and electrooptical properties. Nanosensors can be used to determine microbes, pollutants contaminants etc. and ultimately the freshness of the food. This paper review the status of the various types nanobiosensors and their applications in food. Keywords: Biosensor, E. coli, Staphylococcal enterotoxin, Salmonella, Mycotoxins, GMO

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