Results 71 to 80 of about 7,977,034 (276)

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

open access: yesJournal 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

A Comparative Study on the Effects of Quinic Acid and Shikimic Acid on Cellular Functions of Staphylococcus aureus.

open access: yesJournal of Food Protection, 2018
Quinic acid (QA) and shikimic acid (SA), two kinds of natural organic acids, have been reported to exhibit potent antibacterial activity against Staphylococcus aureus. In this study, the effects of QA and SA on the cellular functions of S.
Jinrong Bai   +7 more
semanticscholar   +1 more source

POLYPHENOLIC COMPOUNDS FROM THE LEAVES OF SCHINUS TEREBINTHIFOLIUS RADDI [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 2008
Two quinic acid esters, 5-O-caffeoylquinic acid (1) and 5-Ocoumaroylquinic acid (2); three myricetin glycosides, myricetin 3O -L-rhamnopyranosyl(1′′′  6′′)  -D-galactopyranoside (3), myricetin 3-O -D-glucuronide (4), and myricetin 3-O ...
Salwa Farag
doaj   +1 more source

Integrative analysis of the metabolome and transcriptome reveals the molecular mechanism of chlorogenic acid synthesis in peach fruit

open access: yesFrontiers in Nutrition, 2022
As the most abundant phenolic acid in peach fruit, chlorogenic acid (CGA) is an important entry point for the development of natural dietary supplements and functional foods. However, the metabolic and regulation mechanisms underlying its accumulation in
Ziwen Su   +14 more
doaj   +1 more source

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

open access: yesBiotechnology 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   +6 more
wiley   +1 more source

Quinic acid esters from Erycibe obtusifolia with antioxidant and tyrosinase inhibitory activities [PDF]

open access: yes, 2019
A new quinic acid derivative, 3-O-syringoylquinic acid methyl ester (1), along with eight known quinic acid derivatives (2-9), three coumarins (10-12), one phenylpropanoid (13), three feruloyltyramine derivatives (14-16), one lignan (17) and two ...
Mi Kyeong Lee (533732)   +7 more
core   +1 more source

Biochemical Markers of Contact with the Organic Pollutants of Urban Atmosphere in the Leaves of Woody Plants

open access: yesBIO Web of Conferences, 2020
Changes caused by contact with typical organic pollutants of urban atmosphere (formaldehyde, benzaldehyde, hydroperoxides) in the chemical composition of the leaves and shoots of woody plants are investigated.
Tsybulya Natalya   +2 more
doaj   +1 more source

Effects of harvest date on plant growth parameters and fruit phytochemical contents in different cultivars of chokeberry

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023
Chokeberry, a type of berry fruit, has garnered attention in recent years due to its remarkable antioxidant properties. The rich bioactive components found in its fruits have been found to exert positive effects on human health.
Nafiye ÜNAL   +4 more
doaj   +1 more source

Fluorogenic Sydnones for Bioorthogonal Labeling of DNA

open access: yesChemistry – A European Journal, EarlyView.
Conjugates of sydnones with cyanine‐styryl dyes combine bioorthogonal reactivity with fluorogenicity. The reactivity with bicyclo[6.1.0]non‐4‐yne (BCN)‐modified DNA showed second‐order rate constants of up to k2 = 2,300 M−1s−1 and fluorescence turn‐on by one magnitude of order.
Kerstin Müller   +1 more
wiley   +1 more source

D-(-)-Quinic acid: a chiron store for natural product synthesis [PDF]

open access: yes, 1997
Chemists have long been aware of the potential advantages of using chiral building blocks as starting materials in the synthesis of natural products. D-(-)-Quinic acid 1, a widely occurring plant metabolite, has seen in the past only limited use as an ...
BENETTI, Simonetta   +5 more
core   +1 more source

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