EVALUATION OF GLOBAL YIELD, COMPOSITION, ANTIOXIDANT ACTIVITY AND COST OF MANUFACTURING OF EXTRACTS FROM LEMON VERBENA (ALOYSIA TRIPHYLLA[L'HÉRIT.] BRITTON) AND MANGO (MANGIFERA INDICA L.) LEAVES

Abstract

In this work, the global yields, composition and antioxidant activity (AA) of extracts from lemon verbena (Aloysia triphylla) and mango (Mangifera indica) leaves obtained by different separation processes were determined. Lemon verbena extracts were obtained by supercritical fluid extraction (SFE), while mango leaf extracts were obtained by SFE, low-pressure solvent extraction (LPSE) and hydrodistillation. The extract's constituents were analyzed by thin-layer chromatography, gas chromatography/mass spectrometry and gas chromatography/flame ionization detector. The AA of the extracts was evaluated by the coupled reaction of b-carotene/linolenic acid. The cost of manufacturing (COM) was estimated for the SFE extracts. Higher global yields were obtained using SFE at 350 bar/45C (1.49%) for lemon verbena and LPSE (3.04%) for mango. The AAs of the extracts were larger than that of the b-carotene for both plants. The minimum values of COM were U.S.$26.96 and 52.45/kg of extract for lemon verbena and mango, respectively.

Chemical composition, antioxidant and antisalmonella activity of Mangifera indica L. flower and seed kernel extracts

“…The strong antioxidant efficacy of seed kernel could be attributed to the presence of free radical scavenger components. These results are more or less in agreements with the observations of Pereira and Meireles, (2007). There are some other reports documented on antioxidant activity of Mangifera indica L. (Palafox-Carlos et al, 2012;Soong and Barlow, 2006).…”

Supercritical Fluid Extraction of Bioactive Compounds: Fundamentals, Applications and Economic Perspectives

“…At pressures greater than 20 MPa, the vapor pressure is the dominant effect on the solubility. This behavior is denoted as retrogradation or retrograde behavior (Pereira et al 2004;Pereira and Meireles 2007b;Piantino et al 2008;Raeissi and Peters 2005a, b;Rodrigues et al 2008;Saldaña et al 1999). Similar performance has been reported in numerous systems (Carvalho et al 2006;Filho et al 2008;Murga et al 2002;Pereira et al 2004;QuispeCondori et al 2005).…”

Supercritical CO2 oilseed extraction in multi-vessel plants. 2. Effect of number and geometry of extractors on production cost

“…(7), with best-fit parameters in Fig. 2, predicts discrepancies of 12-59% for the cost of industrial SFE plants informed by Pereira and Meireles [20,21], Pereira et al [22], Leal et al [23], Comim et al [24], Prado et al [25], Mezzomo et al [26], Aguiar et al [27], Albuquerque and Meireles [28], Prado et al [29], Galvão et al [30], and Leitão et al [31]. Table 1 Aspect (length-to-diameter, L/D) ratio of extraction vessels, and superficial velocity (U) of CO2 in the supercritical fluid extraction plants considered in this work.…”