Subscribe Now Subscribe Today
Research Article
 

Evaluation of the Tubers and Oil of Cyperus rotundus Linn (CYPERACEAE)



B.N. Emelugo, S.C. Umerie, I.F. Okonkwo and J.N. Achufusi
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
ABSTRACT

The proximate analysis of Cyperus rotundus tubers were evaluated and the composition was found to be: 9.0±0.80, 1.75±0.55, 9.50±0.86, 7.87±0.92, 17.48±1.04 and 63.60±1.52% for moisture, crude protein, oil, ash, crude fibre and carbohydrate respectively. The quality of the oil extracted by Soxhlet was assessed in terms of acid value, free fatty acid content, iodine value, saponification value and specific gravity. Results showed that the oil has a low iodine number thus placing it as a non-drying oil, stable and reduced degree of unsaturation. The saponification value and the heat of combustion, implicated the oil as non-edible but can be used for making alkyd resin, shampoo and soaps. The phytochemical constituents; terpenoids, tannins and flavonoids are also implicated in the allelopathic properties of the tubers.

Services
Related Articles in ASCI
Similar Articles in this Journal
Search in Google Scholar
View Citation
Report Citation

 
  How to cite this article:

B.N. Emelugo, S.C. Umerie, I.F. Okonkwo and J.N. Achufusi, 2011. Evaluation of the Tubers and Oil of Cyperus rotundus Linn (CYPERACEAE). Pakistan Journal of Nutrition, 10: 147-150.

DOI: 10.3923/pjn.2011.147.150

URL: https://scialert.net/abstract/?doi=pjn.2011.147.150

REFERENCES
1:  AOAC, 1975. Official Methods of Analysis. 12th Edn., Association of Official Agriculture Chemists, Washington, DC., ISBN: 0935584242, pp: 811-817.

2:  Aslam, M., 2002. Aspects of Asian Medicine and its Practice in the West. In: Trease and Evans Pharmacognosy W.C. Evans, W.B. Saunder Company Ltd., Edinburgh, UK. pp: 467-481.

3:  Baldwin, A.R. and M.W. Formo, 1982. Oils, Fats and Waxes. In: New Encyclopedia Britannica, Encyclopaedia Britannica Chicago, Encyclopaedia Britannica Chicago Chicago, pp: 522-535.

4:  Baltes, J., 1964. Classical Methods in Fat Analysis. In: Analysis and Characterization of Oils, Fats and Fat Products. H.A. Bookenooger, Interscience, London, London, pp: 1-58.

5:  Bernfeld, P., 1955. Amylase alpha and beta. Method Enzymol., 1: 149-158.

6:  Davidson, S., R. Passmore, J.F. Brock and A.S. Truswell, 1975. Human Nutrition and Dietetics. 6th Edn., Churchill Livingstone, Edinburgh, ISBN: 0443012466, Pages: 756.

7:  Egan, H., R.S. Kirk and R. Sawyer, 1981. General Chemical Analysis of Food. In: Pearson`s Chemical Analysis of Food. Egan, H., R.S. Kirk and R. Sawyer, (Eds.) Churchill Livingstone. New York, pp: 8-26.

8:  Glasser, A.C., 2008. Analysis of Fixed Oils, Fats and Waxes. In: Pharmaceutical Chemistry, Theory and Applications, Chattern, L.G. (Ed.). Vol. 1., CBS Publishers and Distributor, New Delhi, India, pp: 405-437.

9:  Harborne, J.B., 1998. Nitrogen Compounds. In: Phytochemical Methods, A guide to modern techniques of plant analysis, Harborne, J.B. (Ed.). Chapman and Hall, London, London, pp: 187-227.

10:  Lambert, J. and T.A. Muir, 1968. Practical Chemistry. 2nd Edn., Heinemann Education Books, London, 1968. Practical Chemistry. 2nd Edn. Heinemann Education Books, London,.

11:  Mann, J., 1996. Secondary metabolism. 2nd Edn. Oxford University Press, Oxford UK., ISBN13:9780198555292..

12:  Osborne, D.R. and P. Voogt, 1978. Calculation of Calorific Value: The Analysis of Nutrients in Foods. Academic Press, New York, USA., pp: 239-240.

13:  Plummer, D.T., 1987. Quantitative Analysis Lipids. In: An Introduction to Practical Biochemistry. Plummer, D.T., McGraw-Hill, England, England, pp: 195-197.

14:  Umerie, S.C., E.O. Okafor and A.S. Uka, 1997. Evaluation of the tubers and oil of Cyperus esculentus Bioresourse Tech. 61: 171-173.

15:  Umerie, S.C. and H.O. Ezeuzo, 2000. Physcio-chemical characterization and utilization of Cyperus rotundus starch. Bioresour,Technol., 72: 193-196.
CrossRef  |  

16:  Umerie, S.C. and B.N. Emelugo, 2007. Phytochemical analysis and antimicrobial activity of Cyperus rotundus tubers. Nat. Applied Sci.j. 8: 114-119.

17:  Uppal, M.M., 2005. Synthetic Resins. In: Engineering Chemistry (Chemical Technology), Bhatia, S.C., N. Mohanty and C. Bhatia (Eds.). Khanna Publishers, Delhi, India, pp: 802.

18:  Uzo, F.O., G.A. Ibenyen, F. Chukwuma and S. Imoebe, 1985. Processing, analysis and utilization of rubber seed oil and cake, The National Conference on Industrial utilization of National Rubber.

19:  Williams, K.A., 1966. Oils, Fast and Fatty Foods. 4th Edn. Am.Elsevier, New York, pp: 88-122..

©  2021 Science Alert. All Rights Reserved