Phytosterol, tocopherol and carotenoid retention during commercial processing of brassica napus (canola) oil

Journal article


Flakelar, Clare L., Adjonu, Randy, Doran, Gregory, Howitt, Julia A., Luckett, David J. and Prenzler, Paul D.. (2022). Phytosterol, tocopherol and carotenoid retention during commercial processing of brassica napus (canola) oil. Processes. 10(3), p. Article 580. https://doi.org/10.3390/pr10030580
AuthorsFlakelar, Clare L., Adjonu, Randy, Doran, Gregory, Howitt, Julia A., Luckett, David J. and Prenzler, Paul D.
Abstract

Brassica napus (canola) seed is a rich source of phytosterols, tocopherols and carotenoids, which all have recognized health benefits, although these are reduced or lost during crude oil refinement. Many studies are now outdated, so new research to monitor bioactive retention through current processing techniques is warranted. In this work, canola seed, in-process seed, and oil samples were collected from the major stages of five commercial canola oil processes. Analysis of phytosterols, tocopherols and carotenoids indicated seed pre-treatment enhanced bioactive concentrations in the crude oil. Although the bleaching step in each process eliminated all carotenoids, high concentrations of phytosterols and tocopherols remained in the refined oil across all processes, with losses notably lower than those found in previous reports. Moreover, crude oil samples from a two-stage cold pressing process showed greatly enriched concentrations of tocopherols (+122%), sterols (+140%) and carotenoids (+217%). The results show that modern Australian canola oil processing retains high phytosterol and tocopherol concentrations and warrants further investigation into bioactive enrichment strategies. Given the growing interest in health-enhanced foods, this study provides opportunities for nutrition and health-enhanced oil products and the potential for adding value in the edible oil industry.

Keywordsbrassica napus; tocopherols; phytosterols; carotenoids; bioactive enrichment
Year2022
JournalProcesses
Journal citation10 (3), p. Article 580
PublisherMultidisciplinary Digital Publishing Institute (MDPI AG)
ISSN2227-9717
Digital Object Identifier (DOI)https://doi.org/10.3390/pr10030580
Scopus EID2-s2.0-85127534420
Open accessPublished as ‘gold’ (paid) open access
Page range1-15
FunderGrains Research & Development Corporation
Graham Centre for Agricultural Innovations
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Online16 Mar 2022
Publication process dates
Accepted10 Mar 2022
Deposited17 Mar 2023
Grant IDDAN00108
DAN00158
GRS10664
Permalink -

https://acuresearchbank.acu.edu.au/item/8ywyy/phytosterol-tocopherol-and-carotenoid-retention-during-commercial-processing-of-brassica-napus-canola-oil

Download files


Publisher's version
  • 35
    total views
  • 21
    total downloads
  • 1
    views this month
  • 2
    downloads this month
These values are for the period from 19th October 2020, when this repository was created.

Export as

Related outputs

Identification of carbon-carbon double bond stereochemistry in unsaturated fatty acids by charge-remote fragmentation of fixed-charge derivatives
Young, Reuben, Flakelar, Clare, Narreddula, Venkateswara, Jekimovs, Lachlan, Menzel, Jan, Poad, Berwyck and Blanksby, Stephen. (2022). Identification of carbon-carbon double bond stereochemistry in unsaturated fatty acids by charge-remote fragmentation of fixed-charge derivatives. Analytical Chemistry. 94(46), pp. 16180-16188. https://doi.org/10.1021/acs.analchem.2c03625
A rapid analytical method for bioactives in edible oils
Clare Flakelar and Paul D. Prenzler. (2017). A rapid analytical method for bioactives in edible oils. International News on Fats, Oils and Related Materials. 28(1), pp. 22-25. https://doi.org/10.21748/inform.01.2017.22