Advances in Processing Technology and the Storage Quality of Edible Oils

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Quality and Safety".

Deadline for manuscript submissions: closed (10 September 2024) | Viewed by 1983

Special Issue Editors


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Guest Editor
Department of Dietetics and Food Science, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
Interests: edible oil; chemistry; oxidative stability; bioactivity; extraction; phenolics; bioactive compounds; food analysis

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Guest Editor
Department of Dietetics and Food Science, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
Interests: edible oil; chemistry; oxidative stability; bioactivity; extraction
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Special Issue Information

Dear Colleagues,

Vegetable oils are a valuable component of a well-balanced daily diet. There is a plethora of evidence for the health-promoting effects of vegetable oils both consumed and applied topically. Scientists are particularly interested in vegetable oils rich in polyunsaturated fatty acids, especially α-linolenic acid, which is deficient in the modern diet.

The high content of polyunsaturated fatty acids may contribute to the high susceptibility of such oil to oxidation. The rate of oil oxidation, in addition to the composition of fatty acids, is affected by factors such as storage method, exposure to light and temperature, and access to oxygen. The presence of ingredients with antioxidant properties, such as tocopherols, squalene, carotenoids and polyphenols, as well as pro-oxidant substances such as chlorophylls or metal ions, is also important for the durability of the oil. The composition of vegetable oils depends primarily on the origin of the botanical raw material and the method of its production. Knowing the detailed composition of the oil is important not only because of its potential pro-health effect, which may be influenced by the unique content of micronutrients of the non-acylglycerol fraction, but also because of the assessment of oil quality. The method of recovering oil from seeds must be considered when producing oils with health-improving effects and of good quality.

The present Special Issue of Foods aims to compile state-of-the-art research, including original and review contributions, focused on the advances in the technology of oil recovery and the storage quality of edible oils.

Dr. Magdalena Grajzer
Dr. Anna Prescha
Guest Editors

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Keywords

  • antioxidants
  • antioxidant capacity
  • cold-pressed seed oils
  • oxidative stability
  • shelf life
  • lipid oxidation
  • supercritical carbon dioxide extraction
  • differential scanning calorimetry

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Published Papers (1 paper)

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Research

16 pages, 22767 KiB  
Article
Improving the Technology of Primary Purification of the Safflower Oil Using Secondary Products of Processing on a Biological Basis
by Bauyrzhan Iskakov, Mukhtarbek Kakimov, Rafał Kudelski, Maigul Mursalykova, Amirzhan Kassenov, Zhuldyz Satayeva, Serik Kardenov, Zhanar Kalibekkyzy, Ayaulym Mustafayeva, Aidyn Igenbayev and Michał Bembenek
Foods 2023, 12(17), 3275; https://doi.org/10.3390/foods12173275 - 31 Aug 2023
Cited by 1 | Viewed by 1555
Abstract
Safflower oil is a very valuable product for the body and human health. It is rich in macro- and microelements, vitamins and minerals, and also has antioxidant properties. The primary purification of safflower oil is an important stage of its production and directly [...] Read more.
Safflower oil is a very valuable product for the body and human health. It is rich in macro- and microelements, vitamins and minerals, and also has antioxidant properties. The primary purification of safflower oil is an important stage of its production and directly affects the quality of the final product and its storage ability. Purifying safflower oil using a combination of filtration and sedimentation processes in an experimental cone-shaped centrifuge is a new direction in its processing. The purpose of this study was to determine the effects of flax fiber as a filter material for safflower oil. The Akmai variety of the safflower was tested. The results showed that the quality indicators of safflower oil before and after filtration through flax fiber are different. The amount of unsaturated fatty acids such as oleic (18.31 ± 0.874%) and cis-linoleic acid (82.52 ± 1.854%) increased, as well as the content of arginine (2.1), tyrosine (0.57), methionine (0.4), cystine (2.5), tryptophan (2.6), and other amino acids (in oil g per 100 g of protein). The increase in the total amount of phenols (322.12 ± 6 mgEAG/kg of oil) was observed, which directly caused the higher antioxidant activity (42.65 ± 8%) of the safflower oil. These results demonstrate that flax fiber can enrich safflower oil. To find the optimal conditions for safflower oil centrifugation in a cone-shaped sedimentary-filtering centrifuge, the thickness of the flax fiber and the distance between the inner and outer perforated filter rotor were tested. It was found that the optimal and effective thickness of the flax fiber is 1.5 × 107 nm, while the thickness of the sediment is 0.5 × 107 nm. Full article
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