Detection of adulterants from common edible oils by GC–MS

Bioactive metabolites from germinated Cajanus cajan (L.) Millsp. seeds after treating with different concentrations of salicylic acid

“…Salicylic acid elicits the plant defense-signaling process, such as butyrolactone synthesized from 2,3-butanediol. This has an antimicrobial effect on phytopathogen Erwinia carotovora and the fungus, Botrytis cinerea during seed germination and seedling growth, and it also inhibits the acetylcholinesterase activity (Cazar et al 2005;Parthasarathy et al 2022). No changes were observed in the 2,3butanediol (dimethylene glycol) and 1-monolinolein-involved glycerol metabolism with salicylic acid.…”

Recent Advances in Analytical Methods for the Detection of Olive Oil Oxidation Status during Storage along with Chemometrics, Authenticity and Fraud Studies

“…According to the legislation regarding the official categorization of olive oils, EVOO has maximum permitted values of K 232 and K 270 at 2.50 and 0.22, respectively, and the ΔK value should be within the +/− 0.01 range. It is expected for fresh and well-processed oils not to exceed values of 2.00 and 0.18 for K 232 and K 270 , respectively [ 26 ].…”

“…To note, oxidation is an inevitable natural process. Some oils, such as olive oil and especially, EVOO are better in delaying it than others with longer induction periods due to their composition [ 26 ]. In principle, oxidation can be influenced by the fatty acid (FA) composition since there is a difference between monounsaturated and polyunsaturated FAs in their oxidation rate.…”

Desenvolvimento e aplicação de software na caracterização química das ceras cuticulares: Estudo de espécies brasileiras de Polypodiopsida

“…1,16 ± 0,84 0,72 ± 0,00 1,85 ± 1,20 1,47 ± 0,12 0,08 ± 0,19 0,57 ± 0,26 Ácido heptacosanoico (C27) 0,09 ± 0,07 -----Ácido octacosanoico (C28) 2,20 ± 0,33 0,31 ± 0,01 0,23 ± 0,32 0,87 ± 0,07 0,34 ± 0,00 0,07 ± 0,07 0,24 ± 0,10 0,2 ± 0,18 0,29 ± 0,00 Ácido tetradecanoico (C14) 0,63 ± 0,00 2,20 ± 0,98 0,36 ± 0,06 0,43 ± 0,24 0,19 ± 0,00 Ácido pentadecanoico (C15) 0,54 ± 0,00 0,28 ± 0,15 0,18 ± 0,05 0,06 ± 0,12 6). A alta proporção de compostos cíclicos presentes nas ceras cuticulares geralmente está associada a funções não relacionadas a retenção de água, tal como proteção contra herbivoria como o caso dos triterpenos e proteção contra o excesso de radiação ultravioleta como visto para os fenólicos (Gonzáles Moreno et al, 2022).…”

“…4 Moreover, knowledge of lipids extends to archeology 5 and health. 6 The coating lipids covering the plant surfaces are known as cuticular waxes and stand out primarily for their importance as a barrier that limits water loss in aerial tissues with no secondary thickening, such as flowers, leaves, stems and fruits. 7 Waxes exhibit a wide diversity of lipid classes, mostly alkanes, primary and secondary alcohols, aldehydes, ketones and, esters, predominantly acyclic and aliphatic, often unbranched and long-chained, usually with sizes of 16 to 36 carbons, reaching up to 60 carbons in esters, presented in homologous series.…”