Assessment of Physicochemical Parameters and Bioactive compounds of Cold-pressed Sesame Oils Released from PJTSAU Sesame Seed varieties (JCS 1020. HIMA & SWETHA)

Author: P. Prathyusha, T. Supraja, B. Anila Kumari, R. Neela Rani, D. Srinivasa Chary and S. Padmaja

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Abstract

Cooking oils are mostly derived from seeds, fruits and nuts. Oil from the seed is obtained by heating, crushing and refining. Of all the oil extraction methods, cold pressing is known to be the best natural way to obtain fresh and healthy oils. In cold pressed extraction, seeds are pounded by an external force. It does not include any heating process. Because the oil is not expected to be heated, and it retains the essential nutrients, proteins and various bioactive compounds present in oils, making it a better oil for cooking than oils made by the heating process. Due to this reason present study aims to extract the cold pressed sesame oil from selected varieties released by PJTSAU to assess the quality of oil with physicochemical parameters and bioactive compounds investigated. Results concluded that density, saponification and total carotenoids had significant differences at p<0.05 whereas total tocopherol content and specific gravity had significant difference at p<0.01 level of significance between by the cold pressed sesame oil varieties (JCS 1020, HIMA & SWETHA). The highest content of bioactive compounds such as total tocopherol was found in JCS 1020 (490.5±0.05 mg/kg) whereas the total carotenoid content was reported for SWETHA (19.44±0.61mg/kg) variety.

Keywords

Cold pressed sesame oil, Total tocopherol content, Total carotenoid content, Iodine value and Physicochemical parameters

Conclusion

From the present investigation results concluded that the highest mean value of physical parameters such as for SWETHA variety cold pressed sesame oil was given for density (0.34 ±0.00), Smoke point (111.7±1.70), Viscosity (0.052±0.0001), flash point (277±1.00) and specific gravity (0.918±0.00) whereas for JCS 1020 variety cold pressed sesame oil was given highest for saponification value (188.2±0.50), insoluble impurity percentage (0.14±0.006), foaming capacity (0.81±0.46) and iodine value (109.28±0.02). Among the physical parameters of cold pressed sesame oil varieties (JCS 1020. HIMA and SWETHA) density and saponification had significantly differed at p≤0.05 level of significance whereas specific gravity significantly differed at p≤0.01 level of significance.

References

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How to cite this article

P. Prathyusha, T. Supraja, B. Anila Kumari, R. Neela Rani, D. Srinivasa Chary and S. Padmaja (2023). Assessment of Physicochemical Parameters and Bioactive compounds of Cold-pressed Sesame Oils Released from PJTSAU Sesame Seed varieties (JCS 1020. HIMA & SWETHA). Biological Forum – An International Journal, 15(2): 1237-1244.