References
- As-Saqui MA. Sweet potato and its potential impact in Liberia. In: Villareal RL, Griggs TD, Editors. Sweet potato: proceedings of the first International Symposium. Proceedings; 1981 Mar 23–27; Shanhua. Tainan (Taiwan): Asian Vegetable Research and Development Center; 1982.
- Nwinyi SCO. Effect of age at shoot removal on tuber and shoot yields at harvest of five sweet potato (Ipomoea batatas (L.) Lam) cultivars. Field Crops Res. 1992;29:47–54.10.1016/0378-4290(92)90075-K
- Villreal RL, Tsou HF, Chiu SC. Sweet potato tips as vegetables. In: Villareal RL, Griggs TD, Editors. Sweet potato: Proceedings of the first International Symposium. Proceedings; 1981 Mar 23–27; Shanhua. Tainan (Taiwan): Asian Vegetable Research and Development Center; 1982.
- Kai Y. Attraction and possibility of the varieties of sweet potato leaves. Nougyogijutsu. 2010;65:370–374. Japanese.
- Sun H, Mu T, Xi L, Zhang M, Chen J. Sweet potato (Ipomoea batatas L.) leaves as nutritional and functional foods. Food Chem. 2014;156:380–389.10.1016/j.foodchem.2014.01.079
- Islam MS, Yoshimoto M, Yahara S, Okuno S, Ishiguro K, Yamakawa O. Identification and characterization of foliar polyphenolic composition in sweetpotato (Ipomoea batatas L.) genotypes. J. Agric. Food Chem. 2002;50:3718–3722.10.1021/jf020120l
- Islam MS, Yoshimoto M, Yamakawa O, Ishiguro K, Toshinaga M. Antioxidative compounds in the leaves of sweet potato genotypes. Sweet Potato Res. Front. 2002;13:4.
- Okuno S, Ishiguro K, Yoshinaga M, Yoshimoto M. Analysis of six caffeic acid derivatives in sweet potato leaves by high-performance liquid chromatography using a short column. Jpn. Agric. Res. Quart. 2010;44:415–420.10.6090/jarq.44.415
- Sato Y, Itagaki S, Kurokawa T, Ogura J, Kobayashi M, Hirano T, Sugawara M, Iseki K. In vitro and in vivo antioxidant properties of chlorogenic acid and caffeic acid. Int. J. Pharm. 2011;403:136–138.10.1016/j.ijpharm.2010.09.035
- Almeida AA, Farah A, Silva DA, Nunan EA, Glória MB. Antibacterial activity of coffee extracts and selected coffee chemical compounds against enterobacteria. J. Agric. Food Chem. 2006;54:8738–8743.10.1021/jf0617317
- Adzet T, Camarasa J, Laguna JC. Hepatoprotective activity of polyphenolic compounds from Cynara scolymus against CCl4 toxicity in isolated rat hepatocytes. J. Nat. Prod. 1987;50:612–617.10.1021/np50052a004
- Chen ZY, Peng C, Jiao R, Wong YM, Yang N, Huang Y. Anti-hypertensive nutraceuticals and functional foods. J. Agric. Food Chem. 2009;57:4485–4499.10.1021/jf900803r
- Brown J, Rice-Evans C. Luteolin-rich artichoke extract protects low density lipoprotein from oxidation in vitro. Free Radic. Res. 1998;29:247–255.10.1080/10715769800300281
- Han J, Miyamae Y, Shigemori H, Isoda H. Neuroprotective effect of 3,5-di-O-caffeoylquinic acid on SH-SY5Y cells and senescence-accelerated-prone mice 8 through the up-regulation of phosphoglycerate kinase-1. Neuroscience. 2010;169:1039–1045.10.1016/j.neuroscience.2010.05.049
- Sasaki K, Han J, Shimozono H, Villareal MO, Isoda H. Caffeoylquinic acid-rich purple sweet potato extract, with or without anthocyanin, imparts neuroprotection and contributes to the improvement of spatial learning and memory of SAMP8 mouse. J. Agric. Food. Chem. 2013;61:5037–5045.10.1021/jf3041484
- Ishiguro K, Toyama J, Islam MS, Yoshimoto M, Kumagai T, Kai Y, Nakazawa Y, Yamakawa O. Suioh, a new sweet potato cultivar for utilization in vegetable greens. Acta Hort. 2004;637:339–345.
- Sasaki K, Oki T, Kobayashi T, Kai Y, Okuno S. Single-laboratory validation for the determination of caffeic acid and seven caffeoylquinic acids in sweet potato leaves. Biosci. Biotech. Biochem. 2014;78:2073–2080.10.1080/09168451.2014.942253
- Islam MS, Yoshimoto M, Ishiguro K, Okuno S, Yamakawa O, Effect of artificial shading and temperature on radical scavenging activity and polyphenolic composition in sweet potato (Ipomoea batatas L.) leaves. J. Am. Soc. Hort. Sci. 2003; 128:182–187.
- Lallemand LA, Zubieta C, Lee SG, Wang Y, Acajjaoui S, Timmins J, McSweeney S, Jez JM, McCarthy JG, McCarthy AA. A structural basis for the biosynthesis of the major chlorogenic acids found in coffee. Plant Physiol. 2012;160:249–260.10.1104/pp.112.202051
- Setoyama O, Hirokawa T, Aoki N, Araki M, Osawa T, Yasuma T. Seasonal variation of bioactive constituents in tochu (Eucommia ulmoides) leaves (2). Research report of Kanagawa Prefectural Industrial Technology Center. 2011;17:54–55. Japanese.
- Mert C, Barut E, Ipek A, Quantitative seasonal changes in the leaf phenolic content related to the alternate-bearing patterns of olive (Olea europaea L. cv. Gemlik). J. Agric. Sci. Tech. 2013; 15:995–1006.
- Menin B, Comino C, Moglia A, Dolzhenko Y, Portis E, Lanteri S. Identification and mapping of genes related to caffeoylquinic acid synthesis in Cynara cardunculus L. Plant Sci. 2010;179:338–347.10.1016/j.plantsci.2010.06.010
- IUPAC, Nomenclature of cyclitols. Biochem. J. 1976; 153:23–31.