Structure of a Coumaric Acid Analogue with a Monoterpene Moiety from the Flowers of Osmanthusfragrans var. aurantiacus and Evaluation of Cinnamic Acid Analogues as Nitric Oxide Production and Degranulation Inhibitors [0.03%]
从桂花中分得一种香豆酸单萜衍生物及其类似物的抑制作用研究
Seikou Nakamura,Jiang Liu,Souichi Nakashima et al.
Seikou Nakamura et al.
A coumaric acid analogue with a monoterpene moiety named floraosmanol A (1) was isolated from the flowers of Osmanthisfragrans var. aurantiacus. The chemical structure was elucidated on the basis of chemical and physicochemical evidence. Fl...
Optical Resolution of (RS)-Denopamine to (R)-Denopamine P-D- Glucoside by Glucosyltransferase from Phytolacca americana Expressed in Recombinant Escherichia coli [0.03%]
美洲商陆的糖基转移酶在重组大肠杆菌中的表达及对(±) - 多巴胺和(R)-多巴葡萄糖苷的光学解析
Hiroki Hamada,Shouta Okada,Kei Shimoda et al.
Hiroki Hamada et al.
The optical resolution of racemic compounds by stereoselective glucosylation was investigated using plant glucosyltransferase from Phytolacca americana expressed in recombinant Escherichia coli. The glucosyltransferase glucosylated chemosel...
Biological Activities of Isolated Compounds from Three Edible Malaysian Red Seaweeds, Gracilaria changii, G. manilaensis and Gracilaria sp [0.03%]
三种可食用的马来西亚红色海藻Gracilaria changii、G. manliaensis和一种未定名的Graciara提取物的生物学活性研究
Yosie Andriani,Desy Fitrya Syamsumir,Tee Ching Yee et al.
Yosie Andriani et al.
Gracilaria species are red marine macroalgae that are found abundantly in Malaysia. Gracilaria changii from Morib, Selangor, G. nanilaensis and Gracilaria sp. from Gelang Patah, Johor were used in this study. Five compounds were successfull...
Yaping Pan,Yan Zhang,Chao Fan et al.
Yaping Pan et al.
Two new lignans, named (7R, 8S)-balanophonin (1) and (7R, 8S)-tomentosanan A (2), together with eight known lignans, burselignan (3), (+)-isolariciresinol (4), (+)-lyoniresinol (5), 5-methoxy-(+)-isolariciresinol (6), (-)-syringaresinol (7)...
Pyranonigrin L, a New Antioxidant, Produced by the Hot Spring-derived Fungus Penicillium adametzii BF-0003 [0.03%]
来源于热泉真菌Penicillium adametzii BF-0003的新抗氧化化合物pyranonigrin L
Ryuji Uchida,Hidetoshi Miyazaki,Yuichi Yamaguchi et al.
Ryuji Uchida et al.
A new antioxidant, designated pyranonigrin L, was isolated from the culture materials of the hot spring-derived fungus Penicillium adainetzii BF0003 by solvent extraction, ODS column chromatography, and HPLC. Its planar structure was elucid...
Development of an Efficient Protocol for Cimifugin Isolation from Peucedanum schottii and Evaluation of Enzyme Inhibitory Activity [0.03%]
高效Peucedanum schottii中分离柴胡皂苷的工艺研究及其酶抑作用评价
Ewelina Koziol,Ilkay Erdogan Orhan,F Sezer Senol et al.
Ewelina Koziol et al.
The dichloromethane (DCM) extract of the fruits of Peucedanwn schottii Besser. ex DC. (Apiaceae) was subjected to high-performance counter-current chromatography (HPCCC) for the efficient and fast separation (30 min) and isolation of cimifu...
Faiqah Ramli,Mawardi Rahmani,Intan Safinar Ismail et al.
Faiqah Ramli et al.
Detailed phytochemical investigation has been carried out on the bark of Artocarpus elasticus Reinw. ex Blume, which led to the isolation of artonin E (1), a new dihydrobenzoxanthone derivative named elastixanthone (2), cycloartobiloxanthon...
Yu-Ming Hsu,Wan-Chun Lai,Chi-Ying Li et al.
Yu-Ming Hsu et al.
Utilizing the pER8:GUS transgenic plant bioassay system to monitor estrogenic activity-guided fractionation, one new constituent, erycaffrain A, together with I known compounds were isolated from the ethanolic extract of Erythrina caffra. T...
Glycosylation of Chrysin by Cultured Cells of Eucalyptus perriniana [0.03%]
Eucalytus perriniana培养细胞中穿心莲内酯的糖基化反应
Kei Shimoda,Naoji Kubota,Masato Tanigawa et al.
Kei Shimoda et al.
The biotransformation of chrysin was investigated using cultured plant cells of Eucalyptus perriniana as biocatalysts. Chrysin was glucosylated to chrysin 7- 0-β-D-glucoside and chrysin 7-β-p-gentiobioside.
De novo Biosynthesis of Trigonelline in Fenugreek (Trigonellafoenum-graecum) seedlings [0.03%]
印度草香豆素新生生物合成
Hiroshi Ashihara
Hiroshi Ashihara
The concentration of trigonelline in dry seeds of fenugreek (Trigonellafoenum-graecum) was 29±3 [mol/g fresh weight. Trigonelline occurred in cotyledons and embryonic axes of the seedlings, but it was found mainly in the above-ground parts...