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Information Journal Paper

Title

ASSESSMENT OF DRYING PROCESS, QUANTITY OF ESSENTIAL OIL AND MATHEMATICAL MODELING OF LEMON VERBENA (LIPPIA CITRIODORA H. B. ET K.) USING HOT AIR

Pages

  684-698

Abstract

 Lemon verbena (LIPPIA CITRIODORA H. B. ET K.) is one of the medicinal plants, belonging to the family Verbenaceae. This plant has active ingredients with sedative, anticonvulsant, heartbeat away, anti-diarrhea and antimicrobial effects. Accurate drying of medicinal plants is inevitable in order to reduce the humidity and increase the longevity and QUANTITY and quality of the active ingredients. In this research, hot air dryer was used to dry the leaves of lemon verbena by using temperatures of 30, 40 and 50oC and different air speeds of 0.5, 1 and 1.5 m/s to reach a humidity of 15%. ESSENTIAL OIL was extracted by Clevenger apparatus. Results showed that effects of temperature and air speed and their interaction on drying time were significant.Results of mean comparisons showed no significant difference between the temperatures of 40oC and 50oC. With increase of temperature, the effect of air speed was negligible. The best treatment in terms of minimum drying time was 40oC and 1 m/s speed. Different levels of temperature showed significant effect on QUANTITY of the ESSENTIAL OIL as the highest and the lowest ESSENTIAL OIL level were respectively obtained at 30oC and 40oC. The speed of the hot air also showed a significant effect on QUANTITY of the ESSENTIAL OIL as the maximum ESSENTIAL OIL was obtained at the speed of 0.5 m/s. The results of interaction effects showed that maximum ESSENTIAL OIL obtained at 500C temperature and 0.5 m/s speed. Finally, 7 Mathematical models of thin layer drying for different conditions such as R2, SSE and RMSE were compared. According to the results, Modified Page was identified as the best model for drying lemon verbena.

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    APA: Copy

    KARIMI, S.R., SHAHHOSEINI, R., & ZAKERI, S.. (2013). ASSESSMENT OF DRYING PROCESS, QUANTITY OF ESSENTIAL OIL AND MATHEMATICAL MODELING OF LEMON VERBENA (LIPPIA CITRIODORA H. B. ET K.) USING HOT AIR. IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS, 28(4 (58)), 684-698. SID. https://sid.ir/paper/105144/en

    Vancouver: Copy

    KARIMI S.R., SHAHHOSEINI R., ZAKERI S.. ASSESSMENT OF DRYING PROCESS, QUANTITY OF ESSENTIAL OIL AND MATHEMATICAL MODELING OF LEMON VERBENA (LIPPIA CITRIODORA H. B. ET K.) USING HOT AIR. IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS[Internet]. 2013;28(4 (58)):684-698. Available from: https://sid.ir/paper/105144/en

    IEEE: Copy

    S.R. KARIMI, R. SHAHHOSEINI, and S. ZAKERI, “ASSESSMENT OF DRYING PROCESS, QUANTITY OF ESSENTIAL OIL AND MATHEMATICAL MODELING OF LEMON VERBENA (LIPPIA CITRIODORA H. B. ET K.) USING HOT AIR,” IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS, vol. 28, no. 4 (58), pp. 684–698, 2013, [Online]. Available: https://sid.ir/paper/105144/en

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