References
- 1. Khamin Chan, in Thai Herbal Pharmacopoeia 2017, Department of Medical Sciences, the Agricultural Co-operative Federation of Thailand, Bangkok 2017, pp. 135–142.
- 2. R. Agarwal, S. K. Gupta, S. Srivastava, P. Agarwal and S. S. Agrawal, Therapeutic potential of Curcuma longa, the golden spice of India, in drug discovery for ophthalmic diseases, Expert Opin. Drug Discov.4 (2009) 147–158; https://doi.org/10.1517/1354377080266811710.1517/1354377080266811723480513
- 3. V. Soleimani, A. Sahebkar and H. Hosseinzadeh, Turmeric (Curcuma longa) and its major constituent (curcumin) as nontoxic and safe substances: Review, Phytother Res. 32 (2018) 985–995; https://doi.org/10.1002/ptr.605410.1002/ptr.605429480523
- 4. A. Sikha, A. Harini and L. Hegde Prakash, Pharmacological activities of wild turmeric (Curcuma aromatica Salisb): a review, J. Pharmacogn. Phytochem.3 (2015) 1–4.
- 5. E. Mudge, M. Chan, S. Venkataraman and P. N. Brown, Curcuminoids in turmeric roots and supplements: Method optimization and validation, Food Anal. Meth. 9 (2016) 1428–1435; https://doi.org/10.1007/s12161-015-0326-010.1007/s12161-015-0326-0
- 6. T. Masuda, K. Hidaka, A. Shinohara, T. Maekawa, Y. Takeda and H. Yamaguchi, Chemical studies on antioxidant mechanism of curcuminoid: Analysis of radical reaction products from curcumin, J. Agric. Food Chem.47 (1999) 71–77; https://doi.org/10.1021/jf980534810.1021/jf980534810563852
- 7. T. Masuda, T. Maekawa, K. Hidaka, H. Bando, Y. Takeda and H. Yamaguchi, Chemical studies on antioxidant mechanism of curcumin: Analysis of oxidative coupling products from curcumin and linoleate, J. Agric. Food Chem.49 (2001) 2539–2547; https://doi.org/10.1021/jf001442x10.1021/jf001442x11368633
- 8. K. I. Priyadarsini, The chemistry of curcumin: from extraction to therapeutic agent, Molecules19 (2014) 20091–20112; https://doi.org/10.3390/molecules19122009110.3390/molecules191220091627078925470276
- 9. V. P. Menon and A. R. Sudheer, Antioxidant and anti-inflammatory properties of curcumin, Adv. Exp. Med. Biol.595 (2007) 105–125; https://doi.org/10.1007/978-0-387-46401-5_310.1007/978-0-387-46401-5_317569207
- 10. T. Ak and I. Gulcin, Antioxidant and radical scavenging properties of curcumin, Chem. Biol. Interact.174 (2008) 27–37; https://doi.org/10.1016/j.cbi.2008.05.00310.1016/j.cbi.2008.05.00318547552
- 11. G. K. Jayaprakasha, L. Jaganmohan Rao and K. K. Sakariah, Antioxidant activities of curcumin, demethoxycurcumin and bisdemethoxycurcumin, Food Chem.98 (2006) 720–724; https://doi.org/10.1016/j.foodchem.2005.06.03710.1016/j.foodchem.2005.06.037
- 12. International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use, ICH Harmonised Tripartite Guideline, Validation of Analytical Procedures: Text and Methodology Q2(R1), Current Step 4 version, ICH, Geneva, November 2005; https://database.ich.org/sites/default/files/Q2%28R1%29%20Guideline.pdf; last access date May 2, 2019
- 13. C. Monton, C. Luprasong and L. Charoenchai, Convection combined microwave drying affect quality of volatile oil compositions and quantity of curcuminoids of turmeric raw material, Rev. Bras. Farmacogn.29 (2019) 434–440; https://doi.org/10.1016/j.bjp.2019.04.00610.1016/j.bjp.2019.04.006
- 14. G. K. Jayaprakasha, L. Jagan Mohan Rao and K. K. Sakariah, Improved HPLC method for the determination of curcumin, demethoxycurcumin, and bisdemethoxycurcumin, J. Agric. Food Chem.50 (2002) 3668–3672; https://doi.org/10.1021/jf025506a10.1021/jf025506a12059141
- 15. I. Ali, A. Haque and K. Saleem, Separation and identification of curcuminoids in turmeric powder by HPLC using phenyl column, Anal. Meth.6 (2014) 2526–2536; https://doi.org/10.1039/c3ay41987h10.1039/C3AY41987H
- 16. J. F. Osorio-Tobón, P. I. Carvalho, G. F. Barbero, G. C. Nogueira, M. A. Rostagno and M. A. Meireles, Fast analysis of curcuminoids from turmeric (Curcuma longa L.) by high-performance liquid chromatography using a fused-core column, Food Chem.200 (2016) 167–174; https://doi.org/10.1016/j.food-chem.2016.01.02110.1016/j.foodchem.2016.01.021
- 17. C. Monton, L. Charoenchai, J. Suksaeree and L. Sueree, Quantitation of curcuminoid contents, dissolution profile, and volatile oil content of turmeric capsules produced at some secondary government hospitals, J. Food Drug Anal.24 (2016) 493–499; https://doi.org/10.1016/j.jfda.2016.01.00710.1016/j.jfda.2016.01.00728911554
- 18. S. Paramapojn and W. Gritsanapan, Variation of curcuminoids in ethanolic extract of Curcuma zedoaria rhizomes in Thailand by HPLC, Planta Med.73 (2007) P_227; https://doi.org/10.1055/s-2007-98700810.1055/s-2007-987008
- 19. S. Paramapojn and W. Gritsanapan, Quantitative Analysis of Curcuminoids in Curcuma zedoaria Rhizomes in Thailand by HPLC Method, in International Workshop on Medicinal and Aromatic Plants (Eds. N. Chomchalow and V. Chantrasmi), Vol. 1, Chiang Mai (Thailand) 2008; ISHS Acta Hortic.786 (2008) 169–174; https://doi.org/10.17660/ActaHortic.2008.786.1810.17660/ActaHortic.2008.786.18
- 20. T. Morishita, H. Yamaguchi, K. Degi, A. Shimizu and H. Nakagawa, Comparison of curcumin contents and antioxidative activities among turmeric species cultivated in Kanto area, Jpn. J. Crop Sci.82 (2013) 56–62; https://doi.org/10.1626/jcs.82.5610.1626/jcs.82.56
- 21. C. Tohda, N. Nakayama, F. Hatanaka and K. Komatsu, Comparison of anti-inflammatory activities of six Curcuma rhizomes: A possible curcuminoid-independent pathway mediated by Curcuma phaeocaulis extract, Evid. Based Complement. Alternat. Med.3 (2006) 255–260; https://doi.org/10.1093/ecam/nel00810.1093/ecam/nel008147593316786056
- 22. J. Zhang, S. Jinnai, R. Ikeda, M. Wada, S. Hayashida and K. Nakashima, A simple HPLC-fluorescence method for quantitation of curcuminoids and its application to turmeric products, Anal. Sci.25 (2009) 385–388; https://doi.org/10.2116/analsci.25.38510.2116/analsci.25.38519276595
- 23. J. Lee, Y. Jung, J. H. Shin, H. K. Kim, B. C. Moon, D. H. Ryu and G. S. Hwang, Secondary metabolite profiling of Curcuma species grown at different locations using GC/TOF and UPLC/Q-TOF MS, Molecules19 (2014) 9535–9551; https://doi.org/10.3390/molecules1907953510.3390/molecules19079535627082525000465
- 24. F. Abas, L. S. Hui, S. Ahmad, J. Stanslas, D. A. Israf, K. Shaari and N. H. Lajis, Biological evaluation of curcumin and related diarylheptanoids, Z. Naturforsch. C61 (2006) 625–631; https://doi.org/10.1515/znc-2006-9-100210.1515/znc-2006-9-100217137104
- 25. S. K. Borra, P. Gurumurthy, J. Mahendra, K. M. Jayamathi, C. N. Cherian and R. Chand, Antioxidant and free radical scavenging activity of curcumin determined by using different in vitro and ex vivo models, J. Med. Plants Res.7 (2013) 2680–2690; https://doi.org/10.5897/JMPR2013.5094
- 26. M. Sökmen and M. Akram Khan, The antioxidant activity of some curcuminoids and chalcones, Inflammopharmacology24 (2016) 81–86; https://doi.org/10.1007/s10787-016-0264-510.1007/s10787-016-0264-5488344827188988
- 27. F. O. S. Camatari, K. H. Lopes, B. I. Valentim, J. A. Xavier, J. G. da Costa, A. E. G. Santana and M. O. F. Goulart, Antioxidant potential of flours from cereals, tubers, beans and seeds chemical profile of Curcuma longa flour, J. Nutr. Food Sci.6 (2016) 1000483; https://doi.org/10.4172/2155-9600.100048310.4172/2155-9600.1000483
- 28. S. Zaeoung, A. Plubrukarn and N. Keawpradub, Cytotoxic and free radical scavenging activities of Zingiberaceous rhizomes, Songklanakarin J. Sci. Technol.27 (2005) 799–812.
- 29. E. M. Tanvir, M. S. Hossen, M. F. Hossain, R. Afroz, S. H. Gan, M. I. Khalil and N. Karim, Antioxidant properties of popular turmeric (Curcuma longa) varieties from Bangladesh, J. Food Qual.2017 (2017) 8471785; https://doi.org/10.1155/2017/847178510.1155/2017/8471785
- 30. E. Souria, G. Amin, H. Farsam, H. Jalalizadeh and S. Barezi, Screening of thirteen medicinal plant extracts for antioxidant activity, Iran. J. Pharm. Res.7 (2008) 149–154; https://doi.org/10.22037/IJPR.2010.758
- 31. G. Nahak and R. K. Sahu, Evaluation of antioxidant activity in ethanolic extracts of five curcuma species, Int. Res. J. Pharm.2 (2011) 243–248.
- 32. A. R. Srividya, P. Dhanabal, Parthkumar Bavadia, V. J. Vishnuvarthan and M. N. S. Kumar, Anti-oxidant and antidiabetic activity of Curcuma aromatica, Int. J. Res. Ayurveda Pharm.3 (2012) 401–405.
- 33. S. Duangjit, L. M. Mehr, M. Kumpugdee-Vollrath and T. Ngawhirunpat, Role of simplex lattice statistical design in the formulation and optimization of microemulsions for transdermal delivery, Biol. Pharm. Bull.37 (2014) 1948–1957; https://doi.org/10.1248/bpb.b14-0054910.1248/bpb.b14-0054925590086
- 34. S. Duangjit, Y. Obata, H. Sano, S. Kikuchi, Y. Onuki, P. Opanasopit, T. Ngawhirunpat, Y. Maitani and K. Takayama, Menthosomes, novel ultradeformable vesicles for transdermal drug delivery: optimization and characterization, Biol. Pharm. Bull.35 (2012) 1720–1728; https://doi.org/10.1248/bpb.b12-0034310.1248/bpb.b12-0034323037161
- 35. M. A. Bezerra, R. E. Santelli, E. P. Oliveira, L. S. Villar and L. A. Escaleira, Response surface methodology (RSM) as a tool for optimization in analytical chemistry, Talanta76 (2008) 965–977; https://doi.org/10.1016/j.talanta.2008.05.01910.1016/j.talanta.2008.05.01918761143