Analysis of Chemical Composition and Antioxidant Activity of Idesia polycarpa Pulp Oil from Five Regions in China

Abstract

Idesia polycarpa pulp oil (IPPO) has the potential to become the new high-quality vegetable oil. The chemical parameters, fatty acid composition, bioactive ingredients, and antioxidant capacity of five Chinese regions of IPPO were studied comparatively, with significant differences among the regions. The oils were all abundant in unsaturated fatty acids, including linoleic acid (63.07 ± 0.03%–70.69 ± 0.02%), oleic acid (5.20 ± 0.01%–7.49 ± 0.03%), palmitoleic acid (4.31 ± 0.01%–8.19 ± 0.01%) and linolenic acid (0.84 ± 0.03%–1.34 ± 0.01%). IPPO is also rich in active substances such as tocopherols (595.05 ± 11.81–1490.20 ± 20.84 mg/kg), which are made up of α, β, γ and δ isomers, β-sitosterol (1539.83 ± 52.41–2498.17 ± 26.05 mg/kg) and polyphenols (106.77 ± 0.86–266.50 ± 2.04 mg GAE/kg oil). The free radical scavenging capacity of IPPO varies significantly depending on the region. This study may provide important guidance for the selection of Idesia polycarpa and offer insights into the industrial application of IPPO in China.

Structural and rheological characterization of water‐soluble and alkaline‐soluble fibers from hulless barley

“…These methods differ in extraction yield, efficiency, and resulting fiber structures. 33,34 methods have been introduced to enhance extraction yield and cost-effectiveness for large-scale production, they come with certain drawbacks. For example, physical methods such as microwave and ultrasonic extraction may modify the native chemical structure of fibers through mechanical shearing, whereas chemical methods such as acid hydrolysis may partially degrade fibers, leading to reduced molecular sizes.…”

Chemical Components, Nutritional Value, Volatile Organic Compounds and Biological Activities In Vitro of Coconut (Cocos nucifera L.) Water with Different Maturities

“…But there still were some unsaturated fatty acids like oleic (4.77-7.32%) and linoleic (1.63-18.79%) acids in four samples. As we all know, linoleic acid is an essential fatty acid possessing many health benefits such as antioxidant, liver protection, and improving lipid metabolism, but excessive intake will induce some side effects [31][32][33]. The energy provided by oil should account for approximately 30% of the total energy intake of an adult every day, and the appropriate proportion of saturated/monounsaturated/ polyunsaturated fatty acids (SFA/MUFA/PUFA) in the oil intake was recommended to be 1:1:1 [34].…”

Special Issue: Bioactive Compounds, Nutritional Quality, and Oxidative Stability of Edible Oils and By-Products of Their Extraction

“…Various methods of extraction and of increasing stability using different encapsulation techniques (including nanoprecipitation, ultrasonication, spray-drying, electrohydrodynamic atomization, freeze-drying, electrospray technique, and coaxial electrospraying) are also presented. Another article [ 4 ] discusses Idesia polycarpa pulp oil. This potentially high-quality vegetable oil was studied for its chemical parameters, fatty acid composition, bioactive ingredients, and antioxidant capacity across different Chinese regions.…”