This publication is the eighth in a series of safety evaluations performed by the Expert Panel of the Flavor and Extract Manufacturers Association (FEMA). In 1993, the panel initiated a comprehensive program to re-evaluate the safety of more than 1700 GRAS flavoring substances under conditions of intended use. Elements that are fundamental to the safety evaluation of flavor ingredients include exposure, structural analogy, metabolism, pharmacokinetics and toxicology. Flavor ingredients are evaluated individually and in the context of the available scientific information on the group of structurally related substances. Scientific data relevant to the safety evaluation of the use of benzyl derivatives as flavoring ingredients is evaluated. The group of benzyl derivatives was reaffirmed as GRAS (GRASr) based, in part, on their self-limiting properties as flavoring substances in food; their rapid absorption, metabolic detoxication, and excretion in humans and other animals, their low level of flavor use, the wide margins of safety between the conservative estimates of intake and the no-observed-adverse effect levels determined from subchronic and chronic studies and the lack of significant genotoxic and mutagenic potential. This evidence of safety is supported by the fact that the intake of benzyl derivatives as natural components of traditional foods is greater than their intake as intentionally added flavoring substances.
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http://dx.doi.org/10.1016/j.fct.2004.11.014 | DOI Listing |
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January 2025
Department of Chemistry, IIT Gandhinagar, Palaj, Gujarat, 382355, India.
The second 3d-transition metal incorporation in Ni-(oxy)hydroxide has a drastic effect on alkaline OER and alcohol dehydrogenation reactivity. While Mn incorporation suppresses the alkaline OER, it greatly improves the alcohol dehydrogenation reactivity. A complete reversal of reactivity is obtained when Fe is incorporated, which shows better performance for alkaline OER with poor alcohol dehydrogenation reactivity.
View Article and Find Full Text PDFJ Mol Graph Model
January 2025
Department of Biotechnology, PES University, Bengaluru 560085, India.
Diabetes mellitus, characterized by persistent hyperglycemia, remains a critical global health challenge. Inhibition of human pancreatic alpha-amylase, a key enzyme catalyzing carbohydrate digestion, is a promising approach to manage postprandial glucose levels. Cinnamomum zeylanicum, a medicinal plant known for its therapeutic potential, harbors bioactive compounds that can act as natural alpha-amylase inhibitors, though their mechanisms remain underexplored.
View Article and Find Full Text PDFDalton Trans
January 2025
Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
Phosphole and azaphosphole derivatives with triazole functionalities, [CH{1,2,3-NCCHC(PPh)}] (L1) and [CH{1,2,3-NC(Ph)C(PPh)}] (L2) were synthesized by reacting [(CH)(1,2,3-NC = CH--Br-CH)] and [(-Br-CH)(1,2,3-NC = CHCH)] with BuLi followed by the addition of dichlorophenylphosphine. The reactions of L1 and L2 with an excess of 30% HO afforded phosphole oxides [CH{1,2,3-NCCHC(P(O)Ph)}] (L1O) and [CH{1,2,3-NC(Ph)C(P(O)Ph)}] (L2O) as white crystalline solids. Stoichiometric reactions of L1 and L2 with [Ru(η--cymene)Cl] in CHCl yielded [RuCl(η--cymene)(L1-κ-)] (1) and [RuCl(η--cymene)(L2-κ-)] (2), respectively.
View Article and Find Full Text PDFCurr Top Med Chem
January 2025
GITAM School of Pharmacy, GITAM Deemed to be University, Rudraram, Patancheru, Sanga Reddy, Telangana-502329, India.
Background: Piperidines are among the essential synthetic fragments for designing drugs and play a significant role in the pharmaceutical industry. The synthesis of newer derivatives by incorporating different amines paves the way for the introduction of novel drug combinations for current cancer treatments.
Method: The new combinations of 1-(4-bromo-2-(pyrrolidine-1-yl) benzyl) piperidine derivatives were synthesized by adding various amino groups.
Angew Chem Int Ed Engl
January 2025
Griffith University, Griffith School of Environment, Centre for Clean Environment and Energy, 4222, Brisbane, AUSTRALIA.
Converting biomass-derived molecules like 5-hydroxymethylfurfural (HMF) into value-added products alongside hydrogen production using renewable energy offers significant opportunities for sustainable chemical and energy production. Yet, HMF electrooxidation requires strong alkaline conditions and membranes for efficient conversion. These harsh conditions destabilize HMF, leading to humin formation and reduced product purity, meanwhile membranes increase costs.
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