Author: Fernández-Segovia, Isabel ; Barat, José M ; Barat, José M. ; González-Bello, Concepción ; Jiménez, M, Consuelo ; Jiménez, M Consuelo ; Gómez-Llorente, Héctor ; Pérez-Esteve, Édgar ; Jiménez, M. Consuelo

Despite numerous studies evaluating the antimicrobial activity of essential oil components (EOCs) against different microorganisms, the effect of the composition of the matrix in which they are applied remains unexplored. Hence, the effect of different food components (i.e., proteins, lipids, carbohydrates, acids, ethanol) on vanillin antimicrobial activity was carried out by assessing the growth of E. coli at different incubation times (0, 1, 4, 8 and 24 h). Based on these outcomes, the food components that most adversely affected vanillin antimicrobial activity were subsequently tested with four other EOCs (i.e., carvacrol, eugenol, geraniol, thymol). The effective concentration of antimicrobials after coming into contact with food components was quantified. The results indicated that bovine serum albumin (BSA), sunflower oil and carbohydrates partially or completely inhibited the antimicrobial efficacy of the tested EOCs, and the inhibition rate depended on the specific EOC-food component combination. Geraniol was notably the most efficient with BSA present. Eugenol performed best with sunflower oil. Carvacrol, eugenol, geraniol and thymol were more effective than vanillin with D-lactose present. This study confirmed that loss of EOCs' effective concentration due to an interaction with food constituents is a significant cause of antimicrobial activity inhibition. These findings underscore the importance of considering matrix composition when selecting antimicrobials to combat a particular strain in real food applications.

01 Dec 2024·Inflammopharmacology

Unlocking the therapeutic potential of Geraniol: an alternative perspective for metabolic disease management

Review

Author: Singh, Shiva ; Alka ; Mishra, Anuradha

ETHNOPHARMACOLOGICAL RELEVANCENatural substance geraniol has anti-inflammatory and antioxidant qualities. It may be used to treat metabolic diseases such as diabetes, obesity, and cardiovascular illnesses. Innovations in nanoformulations enhance geraniol's absorption, stability, and targeted distribution, augmenting its therapeutic effectiveness and mitigating side effects, despite the limits of traditional treatment.AIM OF THE REVIEWThe therapeutic potential of geraniol in the management of metabolic disorders such as diabetes, obesity, neuroinflammation, and cardiovascular disease is examined in this review. It highlights the anti-inflammatory, antioxidant, and lipid-lowering qualities of geraniol as well as the potential for nanoformulations to increase bioavailability and therapeutic efficacy.MATERIALS AND METHODSA collection of pertinent research articles about the potential of geraniol in metabolic illnesses, including obesity, type 2 diabetes, as well as cardiovascular diseases, was compiled from PubMed, Scopus, and Google Scholar. Terms such as "metabolic syndrome," "antioxidant," "anti-inflammatory," "geraniol," and "nanoformulations" were employed. Google Patents were also examined in order to offer insights into current and upcoming research.RESULTSThe potential of geraniol to treat metabolic disorders, including obesity, diabetes, hyperlipidemia, and cardiovascular illnesses, is thoroughly reviewed in this article. Recent research has demonstrated the lipid-lowering, antioxidant, and anti-inflammatory properties of geraniol as well as its ability to improve endothelial function and reduce oxidative stress in preclinical animals. The paper delves into the various nanoformulations, including liposomes, nanoparticles, and nanoemulsions, which enhance geraniol's therapeutic efficacy and bioavailability, making it a viable option for managing metabolic syndrome.CONCLUSIONThe antioxidant, anti-inflammatory, and lipid-lowering qualities of geraniol make it a promising treatment for metabolic diseases. Its bioavailability along with therapeutic efficacy are increased by nanoformulations, which makes it a compelling option for the treatment of conditions such as neuroinflammation, diabetes, and obesity.

01 Dec 2024·Food Chemistry

Characterization of the key aroma compounds in different varieties of hops by application of the Sensomics approach

Article

Author: Tan, Yanli ; Zhou, Yuenan ; Chang, Shiyu ; Li, Shuchang ; Ou, Zejie ; Pang, Xueli

Aroma is a crucial indicator of hop quality. This study analyzed the differences in aroma compound composition among six hop varieties from three regions: North America, Europe, and Asia. Descriptive analysis and sensomic approaches including gas chromatography-olfactometry/aroma extract dilution analysis, odour activity value calculation and aroma recombination were used for the detailed characterization and comparative analysis of hop aroma. A total of 55 aroma-active compounds were identified. Among them, linalool, geraniol, β-myrcene, 2-undecanone, and methyl decanoate contributed significantly to hop aroma. Orthogonal partial least squares discriminant analysis revealed that, except for the SAAZ and XinYuan hops with some similarities in their aroma composition, the remaining hops exhibited unique aroma characteristics. A total of 16 compounds, including methyl 5-methylhexanoate and (E)-β-farnesene, were identified as differentiating aroma compounds in the six hop samples. This study enriches the knowledge on hop flavour with different origins and provides valuable insights into its application.

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Indication	Highest Phase	Country/Location	Organization	Date
Inflammation	Preclinical	CN	Paediatrics Hospital Affiliated To Fudan University	04 Apr 2019
Neoplasms	Preclinical	CN	Paediatrics Hospital Affiliated To Fudan University	04 Apr 2019

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