scholarly journals Effect of Dietary Fiber and Thermal Conditions on Rice Bran Wax-Based Structured Edible Oils

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3072
Author(s):  
Laura Principato ◽  
Daniele Carullo ◽  
Andrea Bassani ◽  
Alice Gruppi ◽  
Guillermo Duserm Garrido ◽  
...  
Keyword(s):  
Rice Bran ◽  
Network Formation ◽  
Edible Oils ◽  
Structural Parameters ◽  
Virgin Olive Oil ◽  
Scanning Calorimetry ◽  
Stability Parameters ◽  
Rice Bran Wax ◽  
Cooling Temperature ◽  
Fiber Addition

In this work, extra-virgin olive oil (EVO)- and sunflower oil (SFO)-based oleogels were structured using rice bran wax (RBW) at 10% by weight (w/w). Bamboo fiber milled with 40 (BF40), 90 (BF90) and 150 (BF150) µm of average size was added as a structuring agent. The effect of fiber addition and cooling temperature (0, 4, and 25 °C) on thermal and structural parameters of achieved gels was assessed by rheological (both in rotational and oscillatory mode), texture, and differential scanning calorimetry tests. Oleogelation modified the rheological behavior of EVO and SFO, thus shifting from a Newtonian trend typical of oils to a pseudoplastic non-Newtonian behavior in gels. Moreover, oleogels behaved as solid-like systems with G′ > G″, regardless of the applied condition. All samples exhibit a thermal-reversible behavior, even though the presence of hysteresis suggests a partial reduction in structural properties under stress. Decreasing in cooling temperature negatively contributed to network formation, despite being partially recovered by low-granulometry fiber addition. The latter dramatically improved either textural, rheological, or stability parameters of gels, as compared with only edible oil-based systems. Finally, wax/gel compatibility affected the crystallization enthalpy and final product stability (gel strength) due to different gelator–gelator and gelator–solvent interactions.

Oxidative Stability of Rice Bran Wax Oleogels and an Oleogel Cream Cheese Product

2018 ◽  
Vol 95 (10) ◽  
pp. 1267-1275 ◽  
Author(s):  
Clifford Park ◽  
Hanna L. Bemer ◽  
Farnaz Maleky
Keyword(s):  
Oxidative Stability ◽  
Rice Bran ◽  
Cream Cheese ◽  
Rice Bran Wax

Replacement of pork fat in frankfurter-type sausages by soybean oil oleogels structured with rice bran wax

Meat Science ◽  
2018 ◽  
Vol 145 ◽  
pp. 352-362 ◽  
Author(s):  
Taylor L. Wolfer ◽  
Nuria C. Acevedo ◽  
Kenneth J. Prusa ◽  
Joseph G. Sebranek ◽  
Rodrigo Tarté
Keyword(s):  
Soybean Oil ◽  
Rice Bran ◽  
Rice Bran Wax ◽  
Pork Fat

EXPRESS: Comparison of Spectroscopic Techniques for Determining the Peroxide Value of 19 Classes of Naturally Aged, Plant-Based Edible Oils

2020 ◽  
pp. 000370282097470
Author(s):  
Joshua M. Ottaway ◽  
J. Chance Carter ◽  
Kristl L Adams ◽  
Joseph Camancho ◽  
Barry Lavine ◽  
...  
Keyword(s):  
Olive Oil ◽  
Peroxide Value ◽  
Near Infrared ◽  
Edible Oils ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Spectroscopic Techniques ◽  
Least Squares Regression ◽  
Mid Infrared ◽  
Calibration Models

The peroxide value (PV) of edible oils is a measure of the degree of oxidation, which directly relates to the freshness of the oil sample. Several studies previously reported in the literature have paired various spectroscopic techniques with multivariate analyses to rapidly determine PVs using field portable and process instrumentation; those efforts presented ‘best-case’ scenarios with oils from narrowly defined training and test sets. The purpose of this paper is to evaluate the use of near- and mid-infrared absorption and Raman scattering spectroscopies on oil samples from different oil classes, including seasonal and vendor variations, to determine which measurement technique, or combination thereof, is best for predicting PVs. Following PV assays of each oil class using an established titration-based method, global and global-subset calibration models were constructed from spectroscopic data collected on the 19 oil classes used in this study. Spectra from each optical technique were used to create partial least squares regression (PLSR) calibration models to predict the PV of unknown oil samples. A global PV model based on near-infrared (8 mm optical path length – OPL) oil measurements produced the lowest RMSEP (4.9), followed by 24 mm OPL near infrared (5.1), Raman (6.9) and 50 μm OPL mid-infrared (7.3). However, it was determined that the Raman RMSEP resulted from chance correlations. Global PV models based on low-level fusion of the NIR (8 and 24 mm OPL) data and all infrared data produced the same RMSEP of 5.1. Global subset models, based on any of the spectroscopies and olive oil training sets from any class (pure, extra light, extra virgin), all failed to extrapolate to the non-olive oils. However, the near-infrared global subset model built on extra virgin olive oil could extrapolate to test samples from other olive oil classes.

Evaluation of Beeswax, Candelilla Wax, Rice Bran Wax, and Sunflower Wax as Alternative Stabilizers for Peanut Butter

2019 ◽  
Vol 96 (11) ◽  
pp. 1235-1248 ◽  
Author(s):  
Jill K. Winkler‐Moser ◽  
Julie Anderson ◽  
Jeffrey A. Byars ◽  
Mukti Singh ◽  
Hong‐Sik Hwang
Keyword(s):  
Rice Bran ◽  
Peanut Butter ◽  
Rice Bran Wax ◽  
Candelilla Wax ◽  
Sunflower Wax

scholarly journals Formulations of Rancid and Winey-Vinegary Artificial Olfactory Reference Materials (AORMs) for Virgin Olive Oil Sensory Evaluation

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1870
Author(s):  
Ramón Aparicio-Ruiz ◽  
Sara Barbieri ◽  
Tullia Gallina Toschi ◽  
Diego L. García-González
Keyword(s):  
Olive Oil ◽  
Edible Oils ◽  
Virgin Olive Oil ◽  
Strict Sense ◽  
Virgin Olive Oils ◽  
Olive Oils ◽  
International Regulations ◽  
Sensory Defects ◽  
And Control

Sensory assessment of virgin olive oil (“panel test”) is the only sensory method included in international regulations of edible oils and its application is compulsory. Even if its application has been a success in quality control, improving the quality of virgin olive oils over the last 30 years, at present, there is no reference material (RM), in the strict sense of the term, to be used as a validated standard for sensory defects of virgin olive oil with which tasters can be trained. Usually, real samples of virgin olive oils assessed by many panels for the International Olive Council (IOC) ring tests are used as materials of reference in panel training and control. The latter are highly representative of the main perceived defects, but availability is limited, samples are not homogeneous year after year, and other secondary defects can be present. Thus, in order to provide solutions, this work describes an analytical procedure for implementing olfactory formulations that emulate rancid and winey-vinegary defects found in virgin olive oils with the aim of providing reproducible RMs that can be prepared on demand. A strategy for designing RMs for aroma is presented and the optimization process to obtain the best formulation is described. Under the criteria of representativeness, verified with the advice of the IOC, aroma persistence, and simplicity in formulation, two RMs for winey-vinegary and rancid were obtained by diluting acetic acid and ethanol (winey-vinegary defect) and hexanal (rancid defect) together with other compounds that are used to modify aroma and avoid non-natural sensory notes.

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