Pretreatment study of turmeric rhizomes and optimization of drying methods using microwave oven and hot air oven to obtain high quality of turmeric powder
Keywords:
Curcuma longa L., curcuminoids, hot air oven, microwave oven, turmeric, volatile oilAbstract
Drying step is one of the important processes for plant preparation to use in medicinal and dietary products. There are many methods for drying; for example, using solar, hot air oven, and freeze dry. In this study, drying used hot air oven and microwave oven were compared. Quality of turmeric powder obtained from microwave oven and hot air oven was studied. Total curcuminoids, volatile oil contents, total ash, acid insoluble ash, moisture and ethanol soluble extractives were tested according to Thai Herbal Pharmacopoeia methods. There were six of turmeric powders and they were collected from the same area. Six samples were divided for boiled and unboiled in the pretreatment step and dried using microwave and hot air ovens. The results showed that drying methods either from microwave oven or hot air oven did not give any significantly differences. Total curcuminoid (7.85-8.58 %w/w) and volatile oil (5.00-7.00 %v/w) contents were met the standard criteria of WHO. However, boiling step yielded less volatile oil contents. HPLC analysis showed that there were similar profiles of curcumin, bisdesmethoxycurcumin, and desmethoxycurcumin among these samples. There was not significantly difference of curcumin content between boiled and unboiled samples, although curcumin content was slightly higher in microwave (2.84-3.77 %w/w) drying method compared with hot air oven (2.69-2.96 %w/w). Drying turmeric powder using microwave oven can reduce time and result in equivalent quality compared with drying in hot air oven.
References
Chandrasekaran, S., Ramanathan, S., & Basak, T. (2013). Microwave food processing-A review. Food Research International. 52(1), 243-261. DOI: 10.1016/j.foodres.2013.03.033
Department of Medical Sciences (2016). Thai Herbal Pharmacopoeia 2016, Khamin Chan, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.145-152.
Department of medical Sciences (2016). Thai Herbal Pharmacopoeia 2016 Appendix 4.12, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.569-570
Department of medical Sciences (2016). Thai Herbal Pharmacopoeia 2016 Appendix 7.3H, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.575-576
Department of medical Sciences (2016). Thai Herbal Pharmacopoeia 2016 Appendix 7.6, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.577
Department of medical Sciences (2016). Thai Herbal Pharmacopoeia 2016 Appendix 7.7, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.577
Department of medical Sciences (2016). Thai Herbal Pharmacopoeia 2016 Appendix 7.12A, Ministry of Public Health, Nonthaburi, 11000, Thailand, pp.578
Fan, Z., Li, J., Liu, J., Jiao, H., & Liu, B. (2018). Anti-inflammation and joint lubrication dual effects of a novel hyaluronic acid/curcumin nanomicelle improve the efficacy of rheumatoid arthritis therapy. ACS Applied Materials & Interfaces 10(28), 23595-23604. DOI: 10.1021/acsami.8b06236
Guo, Q., Sun, D-W., Cheng, J-H., Han, Z. (2017). Microwave processing techniques and their recent applications in the food industry. Trends in Food Science & Technology 67, 236-247. DOI: 10.1016/j.tifs.2017.07.007
Jennifer, C., Stephie, C. M., Abhishri, S.B., & Shalini, B. U. (2012). A review on skin whitening property of plant extracts. International Journal of Pharma and Bio Sciences 3(4), 332-347.
Khonche, A., Biglarian, O., Panahi, Y., Valizadegan, G., Soflaei, S. S., Ghamarchehreh, M. E., Majeed, M., Sahebkar, A. (2016). Adjunctive therapy with curcumin for peptic ulcer: a randomized controlled trial. Drug Research 66(08), 444-448. DOI: 10.1055/s-0042-109394
Kulpapangkorn, W. & Mai-leang, S. (2012). Effect of plant nutrition on turmeric production. Procedia Engineering 32, 166-171. DOI: 10.1016/j.proeng.2012.01.1252
Osorio-Tobon, J. F., Carvalho, P. I., Barbero, G. F., Nogueira, G. C., Rostagno, M. A., & Meireles, M. A. (2016). Fast analysis of curcuminoids from turmeric (Curcuma longa L.) by high-performance liquid chromatography using a fused-core column. Food Chemistry 200, 167-174. DOI: 10.1016/j.foodchem.2016.01.021
Pothitirat, W., & Gritsanapan, W. (2005). Quantitative analysis of curcumin, demethoxycurcumin and bisdemethoxycurcumin in the crude curcuminoid extract from Curcuma longa in Thailand by TLC-Densitometry. Mahidol University Journal of Pharmaceutical Sciences 32(1-2), 23-30.
Pothitirat, W., & Gritsanapan, W. (2006). Variation of bioactive components in Curcuma longa in Thailand. Current Science 9(10), 1397-1400.
Prasad, S., Gupta, S. C., Tyagi, A. K., & Aggarwal, B. B. (2014). Curcumin, a component of golden spice: From bedside to bench and back. Biotechnology Advances 32(6), 1053-1064. DOI: 10.1016/j.biotechadv.2014.04.004
Sharma, K., Agrawal, S. S., & Gupta, M. (2012). Development and validation of uv spectrophotometric method for the estimation of curcumin in bulk drug and pharmaceutical dosage forms. International Journal of Drug Development & Research 4(2), 375-380.
Thaikert, R., & Paisooksantivatana, Y. (2009). Variation of total curcuminoid content, antioxidant activity and genetic diversity in turmeric (Curcuma longa L.) collections. Kasetsart Journal. (Nat. Sci.) 43, 507-518.
ThaiPBS program. (2018). (Accessed July 2018). https://www.youtube.com/watch?v =f2eFnlX1gd8/
Vaughn, A. R., Branum, A., Sivamani, R. K. (2016). Effects of turmeric (Curcuma longa) on skin health: a systematic review of the clinical evidence. Phytotherapy Research 30, 1243-1264. DOI: 10.1002/ptr.5640
World Health Organization (1999). WHO Monographs on Selected Medicinal Plants. Volume 1. Rhizoma Curcumae longae. Geneva.
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