ABSTRACT:
Essential oils are characterized for its high as well as low biological activities. Hence, it is necessary to study the secondary metabolites, antioxidant activities, phytonutrients for its preliminary screening as they form the basics in the production of drug and also it gives an idea about its biological activities present in the essential oil of Coriandrum sativum seeds Black variety. The phenolics, flavonoid content was determined. According to the obtained results, the phenolic content was found to be higher (0.47 ±0.01mg/100g) compared to flavonoid content showing only 0.13 ±0.02mg/100g. Different methods were adopted to study the antioxidant activities. Out of those, the highest antioxidant activity was observed with nitric oxide scavenging (0.28±0.08mg/100g), reducing power activity (0.27±0.03mg/100g). The other two antioxidant activities showed lower antioxidant activity. The phosphomolybdenum activity was 0.19 ±0.01mg/100g and metal chelating activity was 0.10±0.02mg/100g. The nutrient contents obtained are as follows: Carbohydrate-0.06±0.01mg/100g, Protein- 0.36±0.02mg/100g, Aminoacids-0.05±0.00mg/100g. From the results observed, the protein content was found to be high compared to carbohydrate and aminoacids. Hence, it was concluded, that Coriandrum sativum seed essential oil could be used as a raw material for the preparation of pharmacologically active products.