Formulation of Multi-Functional Omega-3 Oil Rich Microcapsules by Spray Drying Methodology.

Abstract

This work was proposed to prepare multi-functional omega-3 oil based microcapsules. Rosemary (Rosmarinus officianlis L.) extracts as potential active compounds were used to stabilize these omega-3 rich microcapsules against both oxidation and microbes. Solvents of different polarities as well as ultrasonic-assisted water extraction (UAE) technique were tested for preparing promising extracts. Results demonstrated that water extract showed the highest phenolic extract as well as highest radical scavenging activity (RSA %) even when compared with BHT as a reference synthetic antioxidant. However, the potency of ultrasonic-assisted water extract as a radical scavenger was greatly enhanced specifically at a temperature of 45C and 30 min extraction time. Regarding the antimicrobial activity, although giving highest total phenolics and RSA %, water extract had no antimicrobial activity against both Gram negative or Gram positive bacteria (at concentration range 0.25 -15%) while methanol extract revealed inhibitory activity against all tested pathogens at concentration of 5% or higher. Moreover, methanol extract didn't affect the survivability of the beneficial bacteria of lactobacilli strains. Finally, according to the results the microcapsules prepared by spray drying method exhibited better protection of omega-3 rich oils and also the yogurt fortified with spray-dried fish oil capsules had higher score in sensory evaluation.

The role of different edible vegetable oils as hypolipidemic agents on experimental hyper-lipidemic rat model

“…On the other hand, the predominantly saturated fatty acids composition is palmitic acid (6.04%), and stearic acid observed (5.05%). The obtained values are comparable to those in the literature, and it notes that the composition of oleic acid obtained in this work do not differ significantly from literature data, namely 20.9-24.4% and 15.81-27.99% [34], also the composition of linoleic acid, values obtained not differ much from the literature [35]. The samples of soybean oil are major unsaturated fatty acids (82.54%), while saturated fatty acids were at a rate of 17.45%.…”

Heterosis for seed, oil yield and quality of some different hybrids sunflower

“…According to Friedt et al (1994), in addition to conventional fatty acids, sunflower oil also contains several other fatty acids, but is present only in traces (C14:0, C16:1, C14:1, C20:0, C22:0). Sunflower oil with high oleic acid content is nutritionally similar to olive oil which is considered superior to other types of seed oil (Doty, 1978;Hamed et al, 2020). Grundy (1986) and Soliman et al (2019) also suggested that a diet rich in monounsaturated fatty acids i. e. oleic acid reduces cholesterol in blood plasma (reducing the risk of coronary heart diseases), has a greater shelf life and a high degree of oxidative stability Zahran and Najafi, 2020;Farrag et al, 2020).…”

A Review: Use of Plants for Antioxidant Purposes in Fish Oil Microencapsulation

“…However, it was specifically noted that the radical scavenging activity of ultrasonication-assisted water extract significantly increased at a temperature of 45 °C and an extraction time of 30 minutes. Additionally, it was emphasized that microcapsules prepared with the addition of rosemary using the spray drying method were better protected against oxidation (Hamed et al, 2020).…”