http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cucurbitane-type triterpene glycosides from the fruits of Momordica charantia
Nhiem, Nguyen Xuan,Kiem, Phan Van,Minh, Chau Van,Ban, Ninh Khac,Cuong, Nguyen Xuan,Ha, Le Minh,Tai, Bui Huu,Quang, Tran Hong,Tung, Nguyen Huu,Kim, Young Ho John Wiley Sons, Ltd. 2010 Magnetic resonance in chemistry Vol.48 No.5
<P>The chemical study of Momordica charantia fruits led to the isolation of three new cucurbitane triterpene glycosides, momordicosides U, V, and W (1–3). The structures of these compounds were determined to be (19R, 23R)-5β, 19-epoxy-19-methoxycucurbita-6,24-diene-3β, 23-diol 3-O-β-D-allopyranoside (1), (23R)-5β, 19-epoxycucurbita-6,24-diene-3β, 23-diol 3-O-β-D-allopyranoside (2), and (19R)-5β, 19-epoxy-19,25-dihydroxycucurbita-6,23(E)-diene-3β-ol 3-O-β-D-glucopyranoside (3), by chemical and spectroscopic methods. Copyright © 2010 John Wiley & Sons, Ltd.</P> <B>Graphic Abstract</B> <P>Three new cucurbitane triterpene glycoside named momordicosides U-W (1–3), respectively, have been isolated from Momordica charantia. Their chemical structures were identified by chemical and spectroscopic methods. <img src='wiley_img_2010/07491581-2010-48-5-MRC2582-gra001.gif' alt='wiley_img_2010/07491581-2010-48-5-MRC2582-gra001'> </P>
Nhiem, Nguyen Xuan,Kiem, Phan Van,Minh, Chau Van,Ban, Ninh Khac,Cuong, Nguyen Xuan,Tung, Nguyen Huu,Ha, Le Minh,Ha, Do Thi,Tai, Bui Huu,Quang, Tran Hong,Ngoc, Tran Minh,Kwon, Young-In,Jang, Hae-Dong,K The Pharmaceutical Society of Japan 2010 Chemical & pharmaceutical bulletin Vol.58 No.5
<P>Fourteen cucurbitane-type triterpene glycosides (1—14) were isolated from a methanol extract of <I>Momordica charantia</I> fruits, including three new compounds, charantosides A—C (1, 5, 6). Their structures were elucidated by chemical and spectroscopic methods. All isolated compounds were evaluated for α-glucosidase inhibitory effect. Of which, 12 and 13 showed moderate inhibitory activity against α-glucosidase. Whereas, 2, 3, 6—11, and 14 showed weak inhibitory activity, and 1, 4, and 5 were inactive.</P>
Artocarpus nigrifolius: Cytotoxic and Antibacterial Constituents
Tran Minh Hoi,김영호,Ha Van Anh,Nguyen Thi Thanh Huong,Nguyen Van Tuyen,Le Thi Tu Anh,Nguyen Thanh Tra,Ba Thi Cham,Nguyen Thi Thu Ha,Pham Thuy Linh,Doan Duy Tien,Phan Van Kiem,Ninh Khac Ban,Lidziya Kukha 한국응용생명화학회 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.6
Six known compounds including α-amyrin 3-acetate (1), β-sitosterol (2), betulinic acid (3), friedelan-3-one (4),artochamin B (5), and 2-C-methyl-D-erythritol 4-O-α-D-glucopyranoside (6) were isolated from the stem barks and leaves of Artocarpus nigrifolius (Moraceae) for the first time. Their structures were identified by spectroscopic methods as well as comparison with literatures. Cytotoxicity and antibacterial activity of 1-6 were evaluated. Results showed that artochamin B (5)possessed the highest cytotoxicity towards MCF7, Lu, HepG2,and KB cell lines with IC50 values of 4.59, 20.00, 3.60, and 1.18μg/mL, respectively. It also inhibited the growth of Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus), whereas inactive on the growth of both Gram-negative bacteria and yeast.
Artocarpus nigrifolius: Cytotoxic and Antibacterial Constituents
Hoi, Tran Minh,Anh, Ha Van,Huong, Nguyen Thi Thanh,Tuyen, Nguyen Van,Anh, Le Thi Tu,Tra, Nguyen Thanh,Cham, Ba Thi,Ha, Nguyen Thi Thu,Linh, Pham Thuy,Tien, Doan Duy,Kiem, Phan Van,Ban, Ninh Khac,Kukha The Korean Society for Applied Biological Chemistr 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.6
Six known compounds including ${\alpha}$-amyrin 3-acetate (1), ${\beta}$-sitosterol (2), betulinic acid (3), friedelan-3-one (4), artochamin B (5), and 2-C-methyl-D-erythritol 4-O-${\alpha}$-D-glucopyranoside (6) were isolated from the stem barks and leaves of Artocarpus nigrifolius (Moraceae) for the first time. Their structures were identified by spectroscopic methods as well as comparison with literatures. Cytotoxicity and antibacterial activity of 1-6 were evaluated. Results showed that artochamin B (5) possessed the highest cytotoxicity towards MCF7, Lu, HepG2, and KB cell lines with $IC_{50}$ values of 4.59, 20.00, 3.60, and $1.18{\mu}g/mL$, respectively. It also inhibited the growth of Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus), whereas inactive on the growth of both Gram-negative bacteria and yeast.
Nguyen Dinh Duc,Dinh Khac Minh,Pham VanThu 한국항공우주학회 2010 International Journal of Aeronautical and Space Sc Vol.11 No.4
Three phase composite materials are widely used in the shipbuilding industry. When reinforced with fiber and particle, the physical and mechanical properties of polymer composite materials are improved. This paper presents the bending analysis of a three phase composite plate with an epoxy matrix, reinforced glass fiber and titanium oxide particles including creep effect when shear stress is taken into account. The obtained results indicate that creep strains lead to compression in the composite material. Introducing reinforced fibers and particles reduces the plate’s deflection, when increasing the stretch coefficient allows the calculation of creep deflection during a long loading period.
Phenylpropanoid Glycosides from Heterosmilax erythrantha and Their Antioxidant Activity
Nguyen Xuan Nhiem,김영호,Phan Van Kiem,Chau Van Minh,Ninh Khac Ban,Nguyen Xuan Cuong,Bui Huu Tai 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.10
By various chromatographic methods, one new phenylpropanoid glycoside, heterosmilaside(1), two known phenylpropanoid glycosides, helonioside B (2), and 2',6'-diacetyl-3,6-diferuloyl sucrose (3), and three known flavonoids, isoquercetin (4), quercetin-3-O-β-D-glucuronopyranoside (5), and quercetin-3-O-(2''-α-L-rhamnopyranosyl)-β-D-glucuronopyranoside (6) were isolated from the methanolic extract of the aerial part of Heterosmilax erythrantha Baill. Their structures were elucidated on the basis of spectroscopic analyses. All the isolated compounds were tested for antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay. Among them, compounds 5 and 6 showed significant antioxidant activity with SC50 values of 3.7 and 6.5 μg/mL, respectively.
Recent advanced applications of nanomaterials in microalgae biorefinery
Nguyen, Minh Kim,Moon, Ju-Young,Bui, Vu Khac Hoang,Oh, You-Kwan,Lee, Young-Chul Elsevier 2019 Algal research Vol.41 No.-
<P><B>Abstract</B></P> <P>Currently, although microalgae biorefinery is gaining attention in proportion to its demonstrated benefits, certain technical requirements need to be met, and cost issues need to be resolved before effective commercialization can be achieved. In both respects, multi-functional nanoparticles have been proposed as a promising potential solution. This review discusses the extensive studies that have been completed in the field of nanoparticles-aided microalgae biorefinery studies. Nanoparticle-support applications include cell/biomass growth enhancement and intracellular active compound production by induction of stress environments, application of backscattering light, and nutritional alteration. In the microalgae harvesting process, diverse nanoparticles can improve harvesting efficiency in a short time. In addition, the ability to re-use nanomaterials, as well as the integration of cell harvesting, disruption, and extraction also contributes to cost reduction. Moreover, many different nanocatalysts offer the ability to enhance biodiesel conversion efficiency. We hope that this review, in sketching out the current state of nano-aided technology in microalgae biorefinery, will contribute illuminating context and useful information for ongoing and future research.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nanotechnology has been widely applied as an effective tool throughout microalgae biorefinery. </LI> <LI> The research on integrated multifunctional nanoparticles has made significant progress. </LI> <LI> Performance and simplicity of practical studies are still not high for industrial requirements. </LI> <LI> Potential and future research directions of nanotechnology-aided microalgae biorefinery are promising. </LI> </UL> </P>