Results 31 to 40 of about 3,257 (193)

Synthesis of the sialic acid (-)-KDN and certain epimers from (-)-3-dehydroshikimic acid or (-)-quinic acid

, 2004
(-)-3-Dehydroshikimic acid (3-DHS, 4), a C(7)-building block now available in large quantity from corn syrup, has been converted into the sialic acid (-)-KDN (3) as well as its C-7- and C-8-epimers.
L. Hungerford, Natasha, A. Jolliffe, Katrina, G. Banwell, Martin, Hungerford, NL, Jolliffe, KA, Banwell, MG   +5 more
core   +2 more sources

Biological function of chlorogenic acid compounds and its application in animal husbandry production

Siliao yanjiu, 2022
Chlorogenic acid compounds refer to caffeic acid quinic acid compounds, which are phenolic acid compounds synthesized by condensation of quinic acid and caffeic acid in different quantities through esterification reaction. Chlorogenic acid compounds have
Pan-pan BAI, Chen ZHANG, Mei-li XU, Ya-kui LI   +3 more
doaj  

Comparison of the Phytochemical Variation of Non-Volatile Metabolites within Mother Tinctures of Arnica montana Prepared from Fresh and Dried Whole Plant Using UHPLC-HRMS Fingerprinting and Chemometric Analysis

Molecules, 2022
Arnica montana L. has been recognized for centuries as an herbal remedy to treat wounds and promote healing. It also has a long tradition of use in homeopathy.
Simon Duthen, Alice Gadéa, Pascal Trempat, Naoual Boujedaini, Nicolas Fabre   +4 more
doaj   +1 more source

Plant‐Derived Silver Nanoparticles From Senegalia catechu: Antimicrobial Activity and Sunlight‐Driven Photocatalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver nanoparticles (Ag NPs) have garnered attention for their environmental and medicinal potential, emphasizing the need for eco‐friendly synthesis. This study produces Ag NPs by reacting silver nitrate with aqueous Senegalia catechu leaf extract, a reductant and stabilizer.
Devendra Khadka, Suraksha Sharma, Janaki Baral, Milan Babu Poudel, Bhoj Raj Poudel, Bishnu Prasad Bastakoti, Megh Raj Pokhrel   +6 more
wiley   +1 more source

The First Synthesis of 7-(Hydroxymethyl)thiepane-3,4,5-triols from D-(-)-Quinic Acid

, 2013
Seven thiepanes, the seven-membered-ring thiosugars, were first synthesized in 11–12 steps starting from d-(−)-quinic acid. Each thiepane is unique for its flexible conformation with a hydroxymethyl group at its C7 position.
Shih, Tzenge-Lien, Shih, Tzenge-Lien; Gao, Wei-Lin   +1 more
core   +1 more source

Constituents of the Polar Extracts from Algerian

Natural Product Communications, 2009
The methanolic and aqueous extracts of Pituranthos scoparius (Coss. & Dur.) Benth. & Hook. (Apiaceae) have been analyzed and fifteen metabolites were identified: two cinnamic acids (5-O-caffeoyl quinic acid and 5-feruloyl quinic acid), and thirteen known
Mostefa Dahia, Laura Siracusa, Hocine Laouer, Giuseppe Ruberto   +3 more
doaj   +1 more source

Interactions between cranberries and fungi: the proposed function of organic acids in virulence suppression of fruit rot fungi

Frontiers in Microbiology, 2015
Cranberry fruit are a rich source of bioactive compounds that may function as constitutive or inducible barriers against rot-inducing fungi. The content and composition of these compounds change as the season progresses.
Mariusz eTadych, Nicholi eVorsa, Yifei eWang, Marshall S. Bergen, Jennifer eJohnson-Cicalese, James J. Polashock, James F. White   +6 more
doaj   +1 more source

An Aromatic Intermediate in the Bacterial Oxidation of Quinic Acid [PDF]

Journal of General Microbiology, 1958
Strains of Pseudomonas and Achromobacter spp. isolated from soil, utilized quinic acid as a sole source of carbon. Protocatechuic acid was produced as an intermediate in this oxidation. Protocatechuic acid was also produced in the course of oxidation of p-hydroxybenzoic acid by these organisms.
openaire   +2 more sources

Comprehensive Characterization of Acer truncatum Leaf Extract: Identification of Systemic Metabolites and Effects on Performance, Antioxidant Status, and Intestinal Microbiota in Laying Hens

Animal Research and One Health, EarlyView.
Dietary A. truncatum leaf extract is absorbed and improves laying performance in aged hens by enhancing systemic antioxidant capacity and modulating the gut microbiota. ABSTRACT The demand for natural feed additives is considerably increasing in the antibiotic‐free feed era.
Kailong Qin, Jiantao Yang, Minglu Gao, Xiaozhao Tao, Xin Yang, Yanli Liu, Xiaojun Yang   +6 more
wiley   +1 more source

Synergistic Enhancement of Antioxidant Activity in Arbutus unedo Leaf Extract by Biological Fluids: Implications for Functional and Nutraceutical Applications

Biotechnology and Applied Biochemistry, EarlyView.
ABSTRACT This study examined the effect of biological fluids (saliva, blood plasma, and urine) on the antioxidant capacity of an aqueous extract derived from Arbutus unedo leaves. The extract displayed a concentration‐dependent reducing activity in the ferric reducing power assay (IC50 = 292 ± 7.54 µg/mL) and phosphomolybdenum assays (IC50 = 461.67 ± 4.
Idir Moualek, Hamdi Bendif, Karima Benarab, Giulio Lupidi, Fehmi Boufahja, Stefania Garzoli, Karim Houali   +6 more
wiley   +1 more source