Modeling and optimization of supercritical fluid extraction of anthocyanin and phenolic compounds from Syzygium cumini fruit pulp

Abstract

Supercritical carbon dioxide extraction (SC-CO 2 ) of total anthocyanin and phenolic compounds from jamun fruits was investigated using three factors at three levels Box-Behnken response surface design. Experiments were conducted to evaluate the effects of three independent variables (pressure, temperature and co-solvent flow rate) on the maximum extraction yield of anthocyanin and phenolic compounds from jamun fruits. From the experimental data, second order polynomial mathematical models were developed with high coefficient of determination values (R 2 >0.98). From response surface plots, pressure, temperature and co-solvent flow rate exhibited independent and interactive effects on the extraction yields. Pressure of 162 bar, extraction temperature at 50°C and co-solvent flow rate of 2.0 g/min was identified as optimal conditions. Under these optimal conditions, the experimental value agreed well with the predicted values and indicates the suitability of developed models.

Ultrasound assisted extraction of pectin from waste Artocarpus heterophyllus fruit peel

“…PRESS value was very lower (0.26) in this study and indicated the perfectness of the developed model. In this study, the adequate precision (signal to noise ratio) was found to be > 70 for the responses, which indicated the best fitness of the developed models [14].…”

In vitro antioxidant and antimicrobial properties of jambolan (Syzygium cumini) fruit polyphenols

“…Gallic acid, caffeic acid, sinapic acid, quercetin and delphinidin eluted at retention time of 16.9, 43.6, 63.4, 86.3 and 45.1 min, respectively, showed concentration of 41.4, 65.6, 21.3, 14.9 and 20.2 mg/ml, respectively. Maran, Priya, and Manikandan (2014) previously identified these compounds in jambolan fruit pulp. Similarly, Faria, Marques, and Mercadante (2011) also identified the major anthocyanin and nonanthocyanin compounds as delphinidin-3-glucoside, myricetin and gallic acid in jambolan.…”

Statistical modeling/optimization and process intensification of microwave-assisted acidified oil esterification

“…In order to test the hypotheses on the factors of the model, all variations are subdivided into component parts combined with specific sources of variations by ANOVA [32]. The statistical analysis results are displayed in Table 3.…”