AI Article Synopsis
- * Transgenic oranges were modified to alter levels of d-limonene and other compounds, revealing that significant decreases or increases in these compounds can result in neutral odor perceptions.
- * An increase in ethyl esters was noted to enhance preference among tasters, highlighting the potential of this research to improve understanding of food selection principles.
Article Abstract
Citrus fruits are characterized by a complex mixture of volatiles making up their characteristic aromas, being the d-limonene the most abundant one. However, its role on citrus fruit and juice odor is controversial. Transgenic oranges engineered for alterations in the presence or concentration of few related chemical groups enable asking precise questions about their contribution to overall odor, either positive or negative, as perceived by the human nose. Here, either down- or up-regulation of a d-limonene synthase allowed us to infer that a decrease of as much as 51 times in d-limonene and an increase of as much as 3.2 times in linalool in juice were neutral for odor perception while an increase of only 3 times in ethyl esters stimulated the preference of 66% of the judges. The ability to address these questions presents exciting opportunities to understand the basic principles of selection of food.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.foodchem.2016.08.076 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Insights into the functional mechanisms of three terpene synthases from (Lavender).
Front Plant Sci
December 2024
Xinjiang Key Laboratory of Lavender Conservation and Utilization, College of Biological Sciences and Technology, Yili Normal University, Yining, Xinjiang, China.
Lavender species are of significant economic value being cultivated extensively worldwide for their essential oils (EOs), which include terpenes that play crucial roles in the cosmetic, personal care, and pharmaceutical industries. The terpene synthases in lavender, such as linalool synthase (LaLINS), limonene synthase (LaLIMS), and bergamotene synthase (LaBERS), are key enzymes in terpene biosynthesis. However, the functional mechanisms underlying these enzymes remain poorly understood.
View Article and Find Full Text PDFAntileishmanial and synergic effects of Rhanterium epapposum essential oil and its main compounds alone and combined with glucantime against Leishmania major infection.
Int J Parasitol Drugs Drug Resist
December 2024
Department of Biology, Faculty of Science, University of Tabuk, Saudi Arabia. Electronic address:
Cutaneous leishmaniasis (CL) is a widespread disease affecting both humans and animals globally. Currently, common treatments (e.g.
View Article and Find Full Text PDFBiphasic effect of limonene on contraction of isolated rat aorta.
Chem Biol Interact
January 2025
Department of Biological Chemistry, Regional University of Cariri, 63105-000, Crato, CE, Brazil.
Article Synopsis
- Limonene, a compound in essential oils, demonstrates various health benefits like antifungal and antioxidant properties, but its effects can vary based on concentration, showing a biphasic response.
- The study investigates limonene's impact on rat aorta contractions, revealing it can enhance or inhibit contractions depending on the dose, particularly with phenylephrine.
- Understanding these dose-dependent effects is crucial for determining safe and effective therapeutic uses of limonene in clinical settings.
Optimizing HMG-CoA Synthase Expression for Enhanced Limonene Production in through Temporal Transcription Modulation Using Optogenetics.
ACS Synth Biol
November 2024
CNRS@CREATE, 1 Create Way, #08-01 Create Tower, Singapore 138602, Singapore.
Overexpression of a single enzyme in a multigene heterologous pathway may be out of balance with the other enzymes in the pathway, leading to accumulated toxic intermediates, imbalanced carbon flux, reduced productivity of the pathway, or an inhibited growth phenotype. Therefore, optimal, balanced, and synchronized expression levels of enzymes in a particular metabolic pathway is critical to maximize production of desired compounds while maintaining cell fitness in a growing culture. Furthermore, the optimal intracellular concentration of an enzyme is determined by the expression strength, specific timing/duration, and degradation rate of the enzyme.
View Article and Find Full Text PDFAshbya gossypii as a versatile platform to produce sabinene from agro-industrial wastes.
Fungal Biol Biotechnol
October 2024
Metabolic Engineering Group, Department of Microbiology and Genetics, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
Background: Ashbya gossypii is a filamentous fungus widely utilized for industrial riboflavin production and has a great potential as a microbial chassis for synthesizing other valuable metabolites such as folates, biolipids, and limonene. Engineered strains of A. gossypii can effectively use various waste streams, including xylose-rich feedstocks.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!