Spilanthol Content in the Extract Obtained by Supercritical CO2 at Different Storage Times of Acmella Oleracea L
2017
Barbosa, Alan Franco | Pereira, Cristiane De Souza Siqueira | Mendes, Marisa Fernandes | De Carvalho Junior, Raul Nunes | De Carvalho, Mário Geraldo | Maia, José Guilherme Soares | Sabaa‐Srur, Armando Ubirajara Oliveira
The effect of the storage time on spilanthol content in the extract from Jambu obtained by supercritical CO₂ was evaluated on respect of their chemical properties. Lyophilized Jambu and partially dehydrated with cold air circulation was stored in an oven at 40°C for 195 days. After different storage times (0, 21, 41, 89 and 195 days), the samples were submitted to supercritical fluid extraction at the same operational condition of 300 bar and 40°C. The obtained extracts were analyzed by ¹H and ¹³C NMR and GC‐MS. The extract from lyophilized Jambu and from different storage times provided the respective spilanthol content, % (storage days): 1.07 (lyophilized); 0.68 (0); 0.41 (21); 0.31 (41); 0.41 (89) and 0.42 (195). These determinations allowed the identification of the constant presence of spilanthol as the major metabolite in the extracts, regardless of storage time, revealing the viability of the market for this product in chemical composition. PRACTICAL APPLICATIONS: This paper showed the presence of spilanthol in all the extracts from a supercritical fluid, despite of the different storage times that the raw material (Jambu) was submitted, proving that it did not suffer degradation. This result is significant because spilanthol is considered the most special metabolite present in Jambu. Moreover, it has many biological properties and confers flavor with tingling and salivation during consumption.
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