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Effect of Blanching Pomegranate Seeds on Physicochemical Attributes, Bioactive Compounds and Antioxidant Activity of Extracted Oil.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2020 May 31; Vol. 25 (11). Date of Electronic Publication: 2020 May 31. - Publication Year :
- 2020
-
Abstract
- This study investigated the effect of blanching pomegranate seeds (PS) on oil yield, refractive index (RI), yellowness index (YI), conjugated dienes (K232), conjugated trienes (K270), total carotenoid content (TCC), total phenolic compounds (TPC) and DPPH radical scavenging of the extracted oil. Furthermore, phytosterol and fatty acid compositions of the oil extracted under optimum blanching conditions were compared with those from the oil extracted from unblanched PS. Three different blanching temperature levels (80, 90, and 100 °C) were studied at a constant blanching time of 3 min. The blanching time was then increased to 5 min at the established optimum blanching temperature (90 °C). Blanching PS increased oil yield, K232, K270, stigmasterol, punicic acid, TPC and DPPH radical scavenging, whereas YI, β-sitosterol, palmitic acid and linoleic acid were decreased. The RI, TCC, brassicasterol, stearic acid, oleic acid and arachidic acid of the extracted oil were not significantly ( p > 0.05) affected by blanching. Blanching PS at 90 °C for 3 to 5 min was associated with oil yield, TPC and DPPH. Blanching PS at 90 °C for 3 to 5 min will not only increase oil yield but could also improve functional properties such as antioxidant activity, which are desirable in the cosmetic, pharmaceutical, nutraceutical and food industries.
- Subjects :
- Biphenyl Compounds chemistry
Cholestadienols chemistry
Dietary Supplements
Eicosanoic Acids chemistry
Fatty Acids chemistry
Food Technology
Free Radical Scavengers chemistry
Linoleic Acid chemistry
Linolenic Acids chemistry
Oleic Acid chemistry
Phenol chemistry
Phenols chemistry
Phytosterols chemistry
Picrates chemistry
Refractometry
Stearic Acids chemistry
Temperature
Antioxidants chemistry
Carotenoids chemistry
Plant Oils chemistry
Pomegranate chemistry
Seeds chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 25
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 32486338
- Full Text :
- https://doi.org/10.3390/molecules25112554