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| RAMÍREZ-ANAYA,Jessica del Pilar; MANZANO-HERNÁNDEZ,Ariana Jocelyn; TAPIA-CAMPOS,Ernesto; ALARCÓN-DOMÍNGUEZ,Karina; CASTAÑEDA-SAUCEDO,Ma Claudia. |
| Abstract Virgin oil from avocados (Persea americana Mill.) is obtained by mechanical processes after pulp malaxation at temperatures that minimize oxidation and improve separation. The objective of this study was to assess the effect of time (0, 20, 30, 40, 60, 120 and 180 min) and temperature (40 and 50 °C) conditions during pulp malaxation on extraction yield, nutritional value (normalized fatty acid profile) and specific extintion (K232 and K270) of virgin oil extracted under laboratory conditions from avocados cultivated in southern Jalisco, Mexico. When pulp was malaxated for 120 min at 40 and 50 °C, a larger proportion of oil was extracted (82.9 ± 0.3% and 80.2 ± 0.8%, respectively). We observed that the normalized percentage of the fatty acids... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential fatty acid; Fatty acids; Linoleic:palmitic ratio; Oil yield; Oxidation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000200223 |
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| CASTAÑEDA-SAUCEDO,Ma Claudia; RAMÍREZ-ANAYA,Jessica del Pilar; TAPIA-CAMPOS,Ernesto; DIAZ-OCHOA,Elvia Guadalupe. |
| Abstract Antioxidant capacity (AC) was determined by the ABTS method and DPPH, and total phenol content (TPC) in dehydrated plant material, in infusions and in residues (plant material after preparing the infusion) of white, black, red, green, spearmint, stevia, lemon grass and chamomile teas to which stevia leaves were added or not added; addition of processed stevia powder was also tested. Three independent experiments were set up: with dehydrated plant material, with infusions and with residues. For the case of dehydrated plant material, white tea had the highest TPC (10813.5 mg GAE/100g) and AC by the ABTS method (1183.3 µM TE/g) and DPPH method (1525.0 µM TE/g). In infusions, black tea had higher TPC (180.82 µg GAE/ml) and AC by the methods ABTS and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Camellia sinensis; Matricaria chamomilla; Cymbopogon citratus and Mentha spicata. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100117 |
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