Aldehydes, Aliphatic

Kohlpaintner, Christian W.; Schulte, Markus; Falbe, Jürgen; Lappe, Peter; Weber, J.

doi:10.1002/14356007.a01_321.pub2

Cited by 16 publications

(19 citation statements)

References 43 publications

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“…For instance, propanal possesses sharp musty odor like rubbing alcohol [ 67 ] and octanal is a fragrant liquid with a fruit-like odor, it occurs naturally in citrus oils. It is used commercially as a component in perfumes and in flavor production for the food industry [ 68 ]. Whereas, nonanal possess rose-orange odor ( https://pubchem.ncbi.nlm.nih.gov/compound/Nonanal ), decanal is an odor agent smells similar to that of orange peel and acetophenone was present in 8-19-6 which possess sweet pungent taste and odor resembling the odor of oranges ( https://pubchem.ncbi.nlm.nih.gov/compound/Decanal ).…”

Section: Discussionmentioning

confidence: 99%

Creation of novel alleles of fragrance gene OsBADH2 in rice through CRISPR/Cas9 mediated gene editing

et al. 2020

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Fragrance in rice grains is a key quality trait determining its acceptability and marketability. Intensive research on rice aroma identified mutations in betaine aldehyde dehydrogenase (OsBADH2) leading to production of aroma in rice. Gene editing technologies like CRISPR/ Cas9 system has opened new avenues for accelerated improvement of rice grain quality through targeted mutagenesis. In this study, we have employed CRISPR/Cas9 tool to create novel alleles of OsBADH2 leading to introduction of aroma into an elite non-aromatic rice variety ASD16. PCR analysis of putative transformants using primers targeting the flanking regions of sgRNA in the 7 th exon of OsBADH2 identified 37.5% potential multi-allelic mutations in T 0 generation. Sensory evaluation test in the leaves of T 0 lines identified thirteen lines belonging to five independent events producing aroma. Sequence analysis of these aromatic T 0 lines identified 22 different types of mutations located within-17 bp to +15bp of sgRNA region. The-1/-2 bp deletion in the line # 8-19 and-8/-5 bp deletion in the line # 2-16 produced strong aroma and the phenotype was stably inherited in the T 1 generation. Comparative volatile profiling detected novel aromatic compounds viz., pyrrolidine, pyridine, pyrazine, pyradazine and pyrozole in the grains of T 1 progenies of line # 8-19. This study has demonstrated the use of CRISPR/Cas9 in creating novel alleles of OsBADH2 to introduce aroma into any non-aromatic rice varieties.

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Section: Discussionmentioning

confidence: 99%

Creation of novel alleles of fragrance gene OsBADH2 in rice through CRISPR/Cas9 mediated gene editing

et al. 2020

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“…Our results showed that lizard species living in such mesic milieus exhibit large proportions of aldehydes, low molecular weight alcohols and a high chemical richness in their secretions. Low molecular weight alcohols and aldehydes evaporate rapidly, and aldehydes are also very susceptible to oxidation (Apps et al., ; Falbe, Bahrmann, Lipps, & Mayer, ; Kohlpaintner et al., ) While the volatile nature of these chemicals makes them, a priori, unsuitable candidates for a scent‐marking function, the harsh signalling conditions of mesic environments would only accelerate the emission of the chemicals, making them even less suitable. Intuitively, these findings are not in accordance with our predictions on signalling efficacy.…”

Section: Discussionmentioning

confidence: 99%

“…() in search of relationships between signal compound properties and signal function in terrestrial vertebrates found that aldehydes are overall less common in amniotes' scent‐marks, but more common as long‐distance ‘odours’. Besides, aldehydes are highly odoriferous (many fragrances are aldehydes; Gounaris, ; Indradas, Hansen, Palmer, & Womack, ; Kohlpaintner et al., ). Their strong aromatic character, together with the moderate air currents in mesic environments, may increase the active space of the airborne chemicals and facilitate signal detection by hetero‐ or conspecifics from a long distance away (Martín & López, ).…”

Section: Discussionmentioning

confidence: 99%

Environmental conditions shape the chemical signal design of lizards

et al. 2017

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The signals that animals use to communicate often differ considerably among species. Part of this variation in signal design may derive from differential natural selection on signal efficacy; the ability of the signal to travel efficiently through the environment and attract the receiver's attention. For the visual and acoustic modalities, the effect of the physical environment on signal efficacy is a well‐studied selective force. Still, very little is known on its impact on chemical signals. Here, we took a broad, phylogenetic comparative approach to test for a relationship between animals' signal chemistry and properties of their natural environment. Our study focused on lizards from the Lacertidae family. We sampled 64 species across three continents and determined the lipophilic composition of their glandular signalling secretions using gas chromatography–mass spectrometry. For each species, an array of environmental variables of high temporal and spatial resolution was obtained from climate databases. Species varied considerably in the overall richness (number of constituents) of their secretions, as well as in the relative contribution of the major chemical compound classes. Signal richness and the relative contribution of the respective compounds exhibited little evidence of phylogenetic relatedness, suggesting that chemical signals may change very rapidly. Neither insularity nor substrate use affected chemical signal composition, however, we found a strong statistical relationship between the chemistry of the lizards' secretions and aspects of the thermal and hydric environment they inhabit. Species from ‘xeric’ milieus contained high proportions of stable fatty acid esters and high molecular weight alcohols in their glandular secretions, which likely increase the persistence of secretion scent‐marks. In contrast, species inhabiting ‘mesic’ environments produced secretions of a high chemical richness comprising high levels of aldehydes and low molecular weight alcohols. This chemical mix probably creates a volatile‐rich signal that can be used for long‐distance airborne communication. We argue that the observed variation in signal design results from differential natural selection, optimizing signal efficacy under contrasting environmental conditions. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12984/suppinfo is available for this article.

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“…The undecylenic acid, which has been identified only in oil D, is known to be a potent fungicide that is very well tolerated (Dongmei et al, 2016). This undecylenic acid is also a precursor in the manufacture of many pharmaceutical products, personal hygiene products, cosmetics and perfumes (Kohlpaintner et al, 2008).…”

Section: Fatty Acids Compositionmentioning

confidence: 99%

Antimicrobial and Antioxidant Activities of Palm Kernel Oils Extracted from Varieties Dura and Tenera of Oil Palm (Elaeis guineensis Jacq.) and the Relationship to Their Chemical Composition

Yapi¹,

Kouadio²

2020

JFS

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The investigation of the antimicrobial and antioxidant activities of palm kernel oils extracted from varieties Dura (oil D) and Tenera (oil T) of oil palm (Elaeis guineensis Jacq.) and the relationship to their chemical composition were carried out in this study. The results obtained show that oil D had the greatest antimicrobial activity. The analysis of gas chromatographic coupled to mass spectrometry (GC-MS) showed that this oil D contained in addition to the lauric acid, the undecylenic acid which both possess antimicrobial activity. This undecylenic acid was not identified in oil T. The 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay and the Fe3+ reduction test (FRAP) used to evaluate the antioxidant activity of the palm kernel oils had showed that oil T had the greatest antioxidant activity with a concentration inhibiting 50% of the reaction (IC50%) of 750 mg/L. It was also noted that, this oil T had also the highest contents in polyphenols, α-tocopherol and sterols with predominance of β-sitosterol. Moreover, the β-sitosterol is known to possess a regulatory role of the immune system.The findings of this study provide thus, useful information which may help customers to make the best choice in the consumption of these oils.

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Aldehydes, Aliphatic

Cited by 16 publications

References 43 publications

Creation of novel alleles of fragrance gene OsBADH2 in rice through CRISPR/Cas9 mediated gene editing

Creation of novel alleles of fragrance gene OsBADH2 in rice through CRISPR/Cas9 mediated gene editing

Environmental conditions shape the chemical signal design of lizards

Antimicrobial and Antioxidant Activities of Palm Kernel Oils Extracted from Varieties Dura and Tenera of Oil Palm (Elaeis guineensis Jacq.) and the Relationship to Their Chemical Composition

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