Avaliação Física E Química De Farinhas De Casca E Polpa De Dioscorea Bulbifera L. Com Possibilidade De Aplicação Na Panificação / Physical and Chemical Evaluation of Husk and Pulp Flours of Dioscorea Bulbifera L. With the Possibility of Application in Bakery

Bioactive compounds from Dioscorea bulbifera L. obtained by combined ultrasound- assisted and solid-liquid extraction

“…The results may be associated with the presence of fibers, since there are compounds of phenolic origin that are structurally bonded to the fibers and, with the action of temperature, become more malleable, being released directly into the extraction solvent (Tzia and Liadakis 2003). Knowing that the husk of Dioscorea bulbifera L. has around 4.90 g 100 g -1 of fiber, significant levels of phenolic compounds were expected when subjected to higher temperatures (Carneiro et al 2020), as occurred in the test E9. From the data obtained for extracting the husk, a complete second-order quadratic mathematical model was obtained to determine the TPC content (dependent variable) of the husk extracts as a function of temperature and time (independent variables) which can be expressed by Eq.…”

“…contains about 75.70 g 100 g -1 of carbohydrates, the results of the contents of total phenolic compounds for the pulp extracts may indicate such associations (Carneiro et al 2020). Therefore, the differences between the results for the pulp and husk extracts are justified due to the structural differences of these fractions.…”

“…The samples were washed and sanitized with sodium hypochlorite solution (100 ppm) for 15 minutes and the husk and pulp fractions were separated. For enzymatic inactivation, the fractions were submitted to citric acid solution (2.4%) at 80°C for 5 minutes (Carneiro et al 2020). Subsequently, the samples were dried in an oven (LUCADEMA 82/150) at 40°C until constant mass.…”

“…Scientific studies on Dioscorea bulbifera L. are still scarce, but what is in the literature has shown that this tuber has potential for introduction in human food. The tuber has a low lipid content, between 0.85 and 1.83 g/100 g, and a high carbohydrate content, around 71.25 g/100 g (Bolaniran et al 2019;Carneiro et al 2020), in addition to having bioactive compounds directly related to different biological activities, such as anticancer activity (Gao et al 2002), anti-inflammatory activity (Chaniad et al 2020;Nguelefack et al 2011) and antioxidant (Ghosh, 2015;Odeghe et al, 2020;Olatoye and Arueya, 2019;Song et al, 2010). The bioactive compounds are secondary metabolites via the shikimate or acetate pathway and consist of an aromatic ring and a benzene ring with one or more hydroxyl groups (Melini et al 2020).…”