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Effects of roasting on physico-chemical properties and fatty acid concentration of different edible oil-seeds

Author Affiliations

  • 1Mustard Research and Promotion Consortium, New Delhi, India
  • 2Mustard Research and Promotion Consortium, New Delhi, India
  • 3Mustard Research and Promotion Consortium, New Delhi, India

Res.J.chem.sci., Volume 8, Issue (5), Pages 19-28, May,18 (2018)


The purpose of the present study was to explore the influence of heating on the composition of different oil seeds and concerning the changes of fatty acid profile (FA), as well as Physico-chemical (PC). Four types of oil-seeds were roasted and milled for analysis. These are ground nut (GN), linseed (LN), brown mustard (BM) and yellow mustard (YM). As a result, roasting of these seeds, bring out some changes in total fat content (%), as well as change in fatty acid profile of the extracted oils. The de-oiled cake analysis also revealed nutritional values change in crude fiber (%), total ash (%), crude protein (%), total carbohydrates (%), and Energy (kcal) that were attributable to the non-roasted. Furthermore, chemical analysis of the extracted oils has demonstrated no significant increase in acid value (AV), iodine value (IV), refractive index (RI), and saponification value (SV), after roasting for 10 minutes. The iodine values of the oils were also increased (P<01.5), whereas, fatty acid profiles of all oilseeds got affected differentially.


  1. Jha G.K., Pal S., Mathur V.C., Bisaria G., Anbukkani P., Burman R.R. and Dubey S.K. (2012)., Edible oilseeds supply and demand scenario in India: Implications for policy., Report of the Indian Agricultural Research Institute.
  2. Caprez A., Amado R. and Neukom H. (1986)., Influence of different types of thermal treatment on the chemical composition and physical properties of wheat bran., Journal of Cereal Science, 4(3), 233-239. A.O.A.C, Official methods of analysis of the association of the analytical chemists, Maryland, USA.
  3. Grant Amanda (2007)., Superfoods., The Guardian, London, archived 2016-09-21
  4. Pigments through the Ages - Renaissance and Baroque (1400-1600) (2012), archived 2012-07-19, undefined, undefined
  5. Brassica Juncea ( )., Germplasm Resources Information Network (GRIN)., Agricultural Research Service (ARS), United States Department of Agriculture (USDA).
  6. Chandrassekaran V.K. (2013)., Flavour of Punjab., The Hindu, Retrieved 6 March 2013.
  7. Ozdemir M. and Devres O. (2000)., Analysis of colour development during roasting of hazelnuts using response surface methodology., Journal of Food Engineering, 45, 17-24.
  8. Lee Y.C., Kim I.H., Chang J., Rhee Y.K., Oh H.I. and Park H.K. (2004)., Chemical Compositions and Oxidative Stability of Safflower Oil Prepared with Expeller from Safflower Seeds Roasted at Different Temperatures., J. Food Sci., 69, 33-38.
  9. Rakariyatham N. and Sakorn P. (2002)., Biodegradation of glucosinolates in brown mustard seed meal (Brassica juncea) by Aspergillus sp. NR-4201 in liquid and solid-state cultures., Biodegradation, 13(6), 395-399.
  10. Official Methods of the Association of Official Analytical Chemists, 14th edn., AOAC, Arlington, VA (1984), Method 28.110., undefined, undefined
  11. Sosulski F.W. and Imafidon G.I. (1990)., Amino acid composition and nitrogen-to-protein conversion factors for animal and plant foods., Journal of Agricultural and Food Chemistry, 38(6), 1351-1356.
  12. IS-548, Part I and Part III, Oils and fats (2009)., undefined, undefined
  13. ISO A.F.S. (1981)., Determination of Nitrogen and Calculation of Crude Protein Contents., ISO, Geneva, Standard, (5983).
  14. ISO O.R. (1977)., Determination of Total Ash., ISO, Geneva, Standard, 749.