Flavonol glycosides with lipid accumulation inhibitory activity and simultaneous quantitative analysis of 15 polyphenols and caffeine in the flower buds of Camellia sinensis from different regions by LCMS

2013 ◽  
Vol 140 (1-2) ◽  
pp. 353-360 ◽  
Author(s):  
Toshio Morikawa ◽  
Kiyofumi Ninomiya ◽  
Sohachiro Miyake ◽  
Yoshinobu Miki ◽  
Masaki Okamoto ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Camellia Sinensis ◽  
Inhibitory Activity ◽  
Lipid Accumulation ◽  
Flavonol Glycosides ◽  
Flower Buds

Flavonol glycosides with lipid accumulation inhibitory activity from Sedum sarmentosum

2012 ◽  
Vol 5 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Toshio Morikawa ◽  
Kiyofumi Ninomiya ◽  
Yi Zhang ◽  
Tomomi Yamada ◽  
Seikou Nakamura ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Lipid Accumulation ◽  
Flavonol Glycosides

scholarly journals Quantitative Analysis of Catechin, Flavonoid, and Saponin Constituents in “Tea Flower”, the Flower Buds of Camellia sinensis, from Different Regions in Taiwan

2013 ◽  
Vol 8 (11) ◽  
pp. 1934578X1300801 ◽  
Author(s):  
Toshio Morikawa ◽  
I-Jung Lee ◽  
Shuhei Okugawa ◽  
Sohachiro Miyake ◽  
Yoshinobu Miki ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Camellia Sinensis ◽  
Mountain Region ◽  
Major Constituent ◽  
Mountain Regions ◽  
Flower Buds ◽  
Northern Areas ◽  
Northern Taiwan ◽  
Analytical Protocols

Using the recently developed two analytical protocols, distributions were analyzed of five catechins (1–5), ten flavonoids (6—15), caffeine (16), and nine saponins (17—25) in 12 samples of flower buds of Camellia sinensis (L.) O. Kuntze, collected at different points in Taiwan. Characteristic tendencies with respect to the distribution of these constituents were observed according to the region of collection. Among the catechins, (–)-epigallocatechin 3- O-gallate (5) was the major constituent in all the samples. Notably, the content of 5 was higher in samples from the mountain regions in the middle and northern Taiwan than in samples from other regions. As for the principal flavonoids, the content of 10 was higher than that of 11 in most of the samples except those of Sijichun tea. For the saponin contents, the following trends were observed: (1) contents of chakasaponins I—III (17—19) were higher in samples from the mountain region in the middle and northern areas; and (2) contents of floratheasaponins A—F (20—25) were higher in the samples from central and southern areas.

scholarly journals Inhibitory Activity of Lignan Components from the Flower Buds of Magnoliae fargesii on the Expression of Cell Adhesion Molecules

2001 ◽  
Vol 24 (9) ◽  
pp. 1085-1087 ◽  
Author(s):  
Kyung-Seop AHN ◽  
Keun Young JUNG ◽  
Jung-Hee KIM ◽  
Sei Ryang OH ◽  
Hyeong-Kyu LEE
Keyword(s):  
Cell Adhesion ◽  
Adhesion Molecules ◽  
Inhibitory Activity ◽  
Cell Adhesion Molecules ◽  
Flower Buds

Alkaloids and lignans with acetylcholinesterase inhibitory activity from the flower buds of Magnolia biondii Pamp

2020 ◽  
Vol 44 (25) ◽  
pp. 10309-10316
Author(s):  
Yangang Cao ◽  
Hongwei Li ◽  
Yanli Zhang ◽  
Jianchao Wang ◽  
Yingjie Ren ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Flower Buds ◽  
Acetylcholinesterase Inhibitory Activity ◽  
Inhibitory Activities

Sixteen compounds, including two new alkaloids and three new lignans, were isolated and their AChE inhibitory activities were evaluated.

scholarly journals Quantitative Determination of Alkaloids in Lotus Flower (Flower Buds of Nelumbo nucifera) and Their Melanogenesis Inhibitory Activity

Molecules ◽  
2016 ◽  
Vol 21 (7) ◽  
pp. 930 ◽  
Author(s):  
Toshio Morikawa ◽  
Niichiro Kitagawa ◽  
Genzoh Tanabe ◽  
Kiyofumi Ninomiya ◽  
Shuhei Okugawa ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Inhibitory Activity ◽  
Nelumbo Nucifera ◽  
Flower Buds ◽  
Lotus Flower

Simultaneous quantitative analysis of 12 methoxyflavones with melanogenesis inhibitory activity from the rhizomes of Kaempferia parviflora

2015 ◽  
Vol 70 (2) ◽  
pp. 179-189 ◽  
Author(s):  
Kiyofumi Ninomiya ◽  
Taku Matsumoto ◽  
Saowanee Chaipech ◽  
Sohachiro Miyake ◽  
Yushi Katsuyama ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Inhibitory Activity ◽  
Kaempferia Parviflora
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