Discovery of novel ascorbic acid derivatives and other …
2023年3月30日 · Current studies of natural occurring ascorbic acid derivatives are limited, only two ascorbyl hexosides, AA-2βG and AA-6βG, have been reported from different plants (Hancock et al., 2008, Richardson et al., 2020, Richardson et al., 2021, Toyoda-Ono et al., 2004). But in our study, three ascorbic acid derivatives with high contents were ...
Novel Ascorbic Acid Co-Crystal Formulations for Improved …
2022年11月18日 · A series of co-crystals of ascorbic acid were prepared with equimolar amounts of co-crystal formers (CCFs), including isonicotinic acid, nicotinic acid, 3,4-dihydroxybenzoic acid, 2,5-dihydroxybenzoic acid and m-hydroxybenzoic acid, by slow solvent evaporation and solvent-assisted grinding.
Novel Ascorbic Acid Co-Crystal Formulations for Improved Stability
The aim of this study was to prepare ascorbic acid co-crystals with enhanced stability and malleability. The two hydroxyl groups of ascorbic acid can act as both donors and acceptors for hydrogen bonds and may form hydrogen bonds with CCFs bearing carboxyl and hydroxyl groups.
A novel detection mode for ascorbic acid with high selectivity …
Ascorbic acid (AA), a well-known antioxidant as vitamin C, plays an important role in regulating various biological processes [1].The concentration levels of AA in human body are related to many diseases, such as scurvy, diarrhea, anemia, arteriosclerosis, ischemic stroke, mental illness, cardiovascular disease, and cancer [1], [2], [3].In addition, AA …
A novel combinatorial approach integrating experimental and ...
3 天之前 · For ascorbic acid, when the OH group in position 4 is radicalized the corresponding radical, ascorbic acid-4OH is formed. Likewise, when the OH groups in positions 4 and 5 are both radicalized the corresponding radical, ascorbic acid 4OH-5OH is formed . By radicalizing only one hydroxyl group, the 5OH radical is the most stable form in gas ...
Biosynthesis of Novel Ascorbic Acid Esters and Their ... - MDPI
2023年5月20日 · We report here the synthesis of novel ferulic acid and palmitic acid esters of 3-O-ethyl ascorbic acid by lipase B from Candida antarctica immobilized on LNPs and their successive encapsulation inside LNPs prepared from kraft lignin by solvent shift procedure. 3-O-ethyl ascorbic acid is a stabilized derivative of AA widely applied in cosmetic ...
Novel Ascorbic Acid Co-Crystal Formulations for Improved Stability
2022年11月18日 · A series of co-crystals of ascorbic acid were prepared with equimolar amounts of co-crystal formers (CCFs), including isonicotinic acid, nicotinic acid, 3,4-dihydroxybenzoic acid, 2,5-dihydroxybenzoic acid and m-hydroxybenzoic acid, by slow solvent evaporation and solvent-assisted grinding.
A novel approach to study ascorbic acid oxidation using …
2024年8月29日 · This paper highlights the advantages of using the potentiometric titration technique as a valuable tool for studying the oxidation reaction of ascorbic acid by hexavalent chromium species in aqueous solutions.
Ascorbic acid-loaded gliadin nanoparticles as a novel …
2022年11月1日 · In this investigation, AA was encapsulated in a vegetal protein-based matrix made up of gliadin, the prolamin obtained from wheat kernels, with the aim of proposing a novel nutraceutical formulation. The nanosystems were characterized by an average diameter of < 200 nm and a negative surface charge of ∼ −40 mV.
report for the first time a novel strategy for point-of-care detection of ascorbic acid (AA) with the TE of CoOOH nanoflakes providing colorimetric signaling. In this detection system, CoOOH nanoflakes exhibit