Modeling and optimization of the spray drying parameters for soapwort (Gypsophila Sp.) extract

Ozdikicierler, Onur/0000-0002-8959-4794WOS: 000492036200014PubMed: 31695939In this study, the effects of spray drying parameters as feed soluble solid content, inlet air temperature and outlet air temperature on spray drying of soapwort (Gypsophila arrostii) extract have been examined. Central composite design was used with 15-30 degrees Bx, 110-160 degrees C and 50-80 degrees C for feed soluble solid content, inlet air temperature and outlet air temperature, respectively. Moisture content, water activity, tapped density, total saponin content and foam volume of the obtained powders were measured as responses of the experimental plan. the spray drying parameters were optimized by considering saponin content and foam volume by response surface methodology. According to the numerical optimization, optimum feed soluble solid content, inlet and outlet air temperatures were 15 degrees Bx, 160 degrees C and 67 degrees C respectively with a desirability factor of 0.822. After verification at optimum conditions, the error percentages were found to be 5.96% and 2.15% for saponin content and foam volume respectively.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109 O 092]The authors wish to thank Scientific and Technological Research Council of Turkey (TUBITAK) for financial support under the project number of 109 O 092

Effects of process parameters on 3-MCPD and glycidyl ester formation during steam distillation of olive oil and olive pomace oil

WOS: 000374112300016Steam distillation was applied to lampante olive oil and olive pomace oil in a laboratory-scale steam distillation equipment, and effects of process parameters (temperature, pressure and stripping steam) were determined and modeled on bound 3-MCPD and glycidyl ester formation. Levels of process parameters were optimized to minimize bound 3-MCPD and glycidyl ester formation using response surface methodology. According to the results of the study, olive pomace oil has a significant content (4.1 mg/kg) of bound 3-MCPD prior to steam distillation. Results showed that temperature of the steam distillation was highly effective on bound 3-MCPD and glycidyl ester formation. Interaction between stripping steam rate and temperature was statistically significant for glycidyl ester formation. Effects of process parameters were visualized by using perturbation plots. Perturbation plots showed that stripping steam rate was possibly effective not only on glycidyl ester formation, but also on bound 3-MCPD formation in the case of steam distillation carried out at wide-ranged process conditions. According to the optimization results, optimum steam distillation temperature is 230 A degrees C, water flow rate is 1.2 ml/min, and pressure is 4 mbar for olive oil, and temperature is 230 A degrees C, water flow rate is 1 ml/min, and pressure is 2 mbar for olive pomace oil to minimize the bound 3-MCPD and glycidyl ester formation.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113O483]The authors wish to thank the Scientific and Technological Research Council of Turkey (TUBITAK) for financially supporting this study under Project Number 113O483

Detection of ternary mixtures of virgin olive oil with canola, hazelnut or safflower oils via non-targeted ATR-FTIR fingerprinting and chemometrics

Detection of extra virgin olive oil (EVOO) adulteration with ternary mixtures of undeclared foreign oils has rarely been reported in literature. The aim of the study was to develop a fit-for-purpose and highly sensitive non-targeted fingerprinting method via ATR-FTIR spectroscopy and qualitative modelling to detect ternary blends of a cheap unsaturated oil (safflower), two high in oleic acid oils (canola and hazelnut oils) at a standard adulteration level (20% v/v). An in-house spectral library for authentic EVOOs was exploited as reference data source. The 2nd derivative ATR-FTIR spectra were carefully explored for outliers throughout the multivariate calibration procedure using the Partial Least Squares Projection to Latent Structures-Discriminant Analysis (PLS-DA) and the Soft Independent Modelling of Class Analogy (SIMCA) methods. Stepwise external validation of the resulting models signified 100% sensitivity in detecting challenging cases of adulteration, i.e. with 5% canola and 15% hazelnut oils. Taken the natural variability in composition of authentic EVOOs from different producing regions and harvest year and the complexity of the studied mixtures, the overall predictive power of every resulting model was found quite high, >92%. A prospective for expanding application at lower adulteration levels i.e. 10% v/v was also evidenced.O. Ozdikicierler thanks the TUBITAK 2219 Post-Doctoral Programme (1059B191701190) for funding his stay at AUTh.TUBITAK 2219 Post-Doctoral Programme [1059B191701190

The effects of spray drying process parameters on the characteristic process indices and rheological powder properties of microencapsulated plant (Gypsophila) extract powder

WOS: 000332430600061Gypsophila Saponaria afficinalis, is in the family Caryophyllaceae, native to southern Europe and southwest Asia, and commonly known as the soapworts. The aqueous extract was obtained by sequential extraction of soapwort plant roots and prior to spray drying operation maltodextrin was added as a carrier material to adjust the soluble solid content (degrees Bx) of the soapwort extract (15 degrees Bx, 22.5 degrees Bx, 30 degrees Bx). Powder properties of the product and the characteristic process indices were determined after spray drying of soapwort extracts with different air inlet (110 degrees C, 135 degrees C, 160 degrees C) and outlet temperatures (50 degrees C, 65 degrees C, 80 degrees C) with the other process parameters being constant. The moisture content of the powders changed between 6.35% and 0.44% being mostly affected by increasing outlet temperatures. Productivity and drying rate showed a decreasing tendency as air outlet temperature increased since high outlet temperatures required low feed flow rates. Dissolution time and tapped density were determined as powder characteristics combined with foam producing capacity, color and morphological properties. In general, results showed that spray drying can satisfactorily be used for spray drying of soapwort root extracts with acceptable moisture and water activity of the powders and functional properties of the reconstituted powders. (C) 2013 Elsevier B.V. All rights reserved.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)This study was financially supported by the Scientific and Technological Research Council of Turkey (TUBITAK)

Optimization of Ultrasound-Assisted Alkali Neutralization in the Refining of Safflower Oil to Minimize the Loss of Bioactive Compounds

In this study, ultrasound-assisted (UA) neutralization parameters are optimized using the response surface methodology to develop a novel alkali neutralization method based on the minimal refining concept. Sodium hydroxide (NaOH), magnesium oxide (MgO), and calcium hydroxide (Ca(OH)(2)) are used in both the traditional (TR) and UA neutralizations. Optimum probe depth, duration, and intensity levels are calculated as 3.7 cm, 25 s, and 54.3%, respectively, for UA neutralization with NaOH, which is more successful at free fatty acid (FFA) reduction and total phenolic content (TPC) retention than MgO and Ca(OH)(2). Validation results of optimum conditions show that lowest average FFA content (0.29%) and highest average TPC (211.2 mg kg(-1)) are determined for the UA-neutralized safflower oil samples. The comparison of all the neutralization experiments reveal that the UA neutralization under optimum conditions using NaOH reduced 82.8% of the FFA content, whereas the TR alkali neutralization reduced the FFA content at a maximum of only 47.8%. Practical Applications: From the results, it can be inferred that the UA neutralization exhibits good performance in FFA content reduction and bioactive compound retention while offering a good solution within the concept of minimal refining.Scientific and Technological Research Council of Turkey (TUB.ITAK) [118O992]; Ege University Planning and Monitoring Coordination of Organizational Development and Directorate of Library and DocumentationThis work was financially supported by the Scientific and Technological Research Council of Turkey (TUB.ITAK) under Project No. 118O992. The authors are grateful to Ege University Planning andMonitoring Coordination of Organizational Development and Directorate of Library and Documentation for their support in editing and proofreading service of this study