Assessment of capsiconinoid composition, nonpungent capsaicinoid analogues, in capsicum cultivars.
Capsiconinoid is a group of nonpungent capsaicinoid analogues produced in Capsicum fruits, which we recently identified. Capsiconinoids have agonist activity for transient receptor potential vanilloid type 1 (TRPV1), which is reported to be a receptor for capsaicin. It is, therefore, important to screen cultivars containing high levels of capsiconinoid for their use as a vegetable or dietary supplement. This study describes the quantitative analysis of capsiconinoid content in fruits of 35 Capsicum cultivars: 18 cultivars of C. annuum, 7 of C. baccatum, 5 of C. chinense, 4 of C. frutescens, and 1 of C. pubescens. Using high-performance liquid chromatography (HPLC), we found that 10 cultivars contained capsiconinoids. Capsiconinoid Baccatum (CCB) (C. baccatum var. praetermissum) showed the highest capsiconinoid content (3314 microg/g DW) and Charapita (C. chinense) had the second highest content. The other 8 cultivars had much lower capsiconinoid content than these two cultivars (<300 microg/g DW). Time-course analysis during fruit development clarified that capsiconinoid content in CCB fruits increased until 30 days after flowering (DAF) and then decreased rapidly until 40 DAF.
Tanaka
Yoshiyuki
Y
Graduate School of Agriculture, Kyoto University, Kitashirakawa, Kyoto, Japan. kapipara1014@yahoo.co.jp
Hosokawa
Munetaka
M
Otsu
Keigo
K
Watanabe
Tatsuo
T
Yazawa
Susumu
S
D002211:Capsaicin / Q000031:analogs & derivatives* / Q000737:chemistry; D002212:Capsicum / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry
D010936:Plant Extracts; D002211:Capsaicin