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Optimisation de l’extraction des jus des calices séchés de roselle (Hibiscus sabdariffa L.)

Optimization of the extraction of roselle (Hibiscus sabdariffa L.) dried calyxes’ juice

Journal Name:

  • International Journal of Innovation and Applied Studies

Publication Year:

  • 2013

Key Words:

Author Name
Abstract (2. Language): 
The objective of the work consisted in modeling and optimizing the juice extraction physicochemical characteristics from Hibiscus sabdariffa L., in order to be able to put forward its qualities. This was done using response surface methodology (RSM). The models obtained at 60°C using Doehlert experimental design were of second order with interaction. The validation of those models used the coefficient of correlation R2 (0.998 and 0.994 respectively for turbidity and extract), the absolute average deviation (AAD) (0.068 and 0.056 respectively for turbidity and extract), the bias factor (0.95 and 0.98 respectively for turbidity and extract) and the exactitude factor (1.08 and 1.05 respectively for turbidity and extract). In this study, factors as calyxes/water ratio and maceration time which influenced significantly on juice turbidity and extract was modeled and optimized. The calyxes/water ratio contributions were 34% and 43% respectively for turbidity and extract while, the maceration time contributions were 23% and 10% respectively for turbidity and extract. At 60 °C of extraction temperature, we were able to have turbidity up to 307.22 NTU and extract up to 12 °B. When optimizing the responses, it was possible to have juices with less turbidity (≤ 200 NTU) and high extract (≥ 6 °B).
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  • 4
500-511
  • French

REFERENCES

References: 

[1] L. W. Morton, C. R. Abu-Amsha, I. B. Puddey, and K. D. Croft, "Chemistry and biological effects of dietary phenolic
compounds: Relevance to cardiovascular diseases," Clin. Exp. Pharmacol. Physiol., vol. 27, pp. 152-159, 2000.
[2] C. C. Chen, F. P. Chou, and Y. V. Ho, "Inhibitory effects of Hibiscus sabdariffa L. extract on low density lipoprotein
oxidation and antihyperlipidemia in fructose-fed and cholesterol-fed rats," J. Sci. Food Agric., vol. 84, pp. 1989-1996,
2004.
[3] O. Carvajal-Zarrabal, S. M. Waliszewski, and D. M. Barraddas-dermitz, "The consumption of Hibiscus sabdariffa dried
calyx ethanolic extract reduced lipid profile in rats," Plant Foods Hum. Nutr., vol. 60, pp. 153-159, 2005.
[4] V. Hirunpanich, A. Utaipat, and N. P. Morales, "Hypocholesteromic and antioxidant effects of aqueous extracts from the
dried calyx of Hibiscus sabdariffa L. in hypercholesteromic rats," J. Ethnopharmacol., vol. 103, pp. 252-260, 2006.
[5] A. Ologundudu, A. O. Ologundudu, I. A. Ololade, and F. O. Obi, "Effect of Hibiscus sabdariffa anthocyanins on 2,4-
dinitrophenylhydrazine-induced hematotoxicity in rabbits," Afr. J. Biochem. Res., vol. 3, pp. 140-144, 2009.
[6] C. T. Du and F. J. Francis, "Anthocyanins of roselle (Hibiscus sabdariffa L.)," J. Food Sci. , vol. 38, p. 818, 1973.
[7] P. K. Wong, S. Yusof, H. M. Ghazali, and Y. B. C. Man, "Physico-chemical characteristics of roselle (Hibiscus sabdariffa
L.)," J. Nutr. Food Sci. , vol. 32, pp. 68-73, 2002.
[8] D. P. Folefack, C. Njomaha, and D. R. Djouldé, "Diagnostic du système de production et de commercialisation du jus
d’oseille de Guinée dans la ville de Maroua," Tropicultura, vol. 26, pp. 211-215, 2008.
[9] Z. S. C. Desobgo, E. J. Nso, and D. Tenin, "The response surface methodology as a reliable tool for evaluating the need of
commercial mashing enzymes for alleviating the levels of reducing sugars of worts of malted sorghum: case of the
Safrari cultivar," Journal of Brewing and Distilling, vol. 2, pp. 5-15, 2011.
[10] Z. S. C. Desobgo, E. J. Nso, and D. Tenin, "Use of response surface methodology for optimizing the action of mashing
enzymes on wort reducing sugars of the Madjeru sorghum cultivar," African Journal of Food Science, vol. 5, pp. 91-99,
2011.
[11] Z. S. C. Desobgo, E. J. Nso, and D. Tenin, "Modeling the action of technical mashing enzymes on extracts and free-amino
nitrogen yields of the Madjeru sorghum cultivar," Journal of Brewing and Distilling, vol. 2, pp. 29-44, 2011.
[12] Z. S. C. Desobgo, E. J. Nso, and D. Tenin, "Optimisation of the Action of Commercial Mashing Enzymes on Wort Extracts
and Free Amino Nitrogen of the Safrari Sorghum Cultivar," Technical Quarterly Master Brewers Association of the
Americas, vol. 48, pp. 77-86, 2011.
[13] Z. S. C. Desobgo, E. J. Nso, D. Tenin, and G. J. Kayem, "Modelling and optimizing of mashing enzymes-effect on yield of
filtrate of unmalted sorghum by use of response surface methodology," Journal of the Institute of Brewing, vol. 116, pp.
62-69, 2010.
[14] D. Mathieu, D. Feneuille, and R. Phan-Tan-Luu, "Méthodologie de la recherche expérimentale: Etude des surfaces de
réponse," Laboratoire de Prospective Reactionnelle et d’Analyse de l'Information, IUT de l’Université d'Aix-Marseille,
Marseille, 1977.
[15] M. Giovanni, "Response surface methodology and product optimization," Food Technology, vol. 37, pp. 41-45, 1983.
[16] J. Goupy and L. Creighton, Introduction aux plans d'expériences, 3 ed. Paris: Dunod, 2006.
[17] D. Baș and I. H. Boyac, "Modeling and optimization I: Usability of response surface methodology," Journal of Food
Engineering, vol. 78, pp. 836-845, 2007.
[18] T. Ross, "Indices for performance evaluation of predictive models in food microbiology," Journal of Applied Bacteriology,
vol. 81, pp. 501-508, 1996.
[19] R. H. Myers and D. C. Montgomery, Response surface methodology: Process and product optimization using designed
experiments. New York: John Wiley & Sons, 1995.
[20] P. Dalgaard and L. V. Jorgensen, "Predicted and observed growth of Listeria monocytogenes in seafood challenge tests
and in naturally contaminated cold smoked salmon," International Journal of Food Microbiology, vol. 40, pp. 105 - 115,
1998.

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