Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria
Flaxseed oil is a prevalent food supplement. On one hand, vegetable oil is used in the food industry and pharmacy due to its health benefits; on the other hand, it has an application as a lubricant oil. The fatty acid composition of the investigated oil was determined as follows: the main fatty acid...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/18/10141 |
| _version_ | 1827727347546062848 |
|---|---|
| author | Vanya Gandova Olga Teneva Zhana Petkova Ivan Iliev Albena Stoyanova |
| author_facet | Vanya Gandova Olga Teneva Zhana Petkova Ivan Iliev Albena Stoyanova |
| author_sort | Vanya Gandova |
| collection | DOAJ |
| description | Flaxseed oil is a prevalent food supplement. On one hand, vegetable oil is used in the food industry and pharmacy due to its health benefits; on the other hand, it has an application as a lubricant oil. The fatty acid composition of the investigated oil was determined as follows: the main fatty acids were <i>α</i>-linolenic (57.5%), oleic (17.5%), linoleic (12.5%), palmitic (6.0%), and stearic acid (4.3%). The content of unsaponifiable matter was 1.4%. The total sterol content was determined (0.5%), with identified <i>β</i>-sitosterol (79.7%) as a main component, followed by stigmasterol. The content of tocopherols was found to be 243 mg/kg. The compound <i>γ</i>-tocopherol predominated (68%) in the tocopherol fraction, followed by <i>γ</i>-tocotrienol (32%). Some physicochemical indicators were also determined—density, surface tension, and dynamic and kinematic viscosity—at the following temperatures: 20, 30, 40, 50, 60, 70, and 80 °C. The increase in temperature led to a decrease in all indexes and good linear dependence was observed. The determined physicochemical indicators provided information about the stability of flaxseed oil, which is very important considering its use in food and technical products. |
| first_indexed | 2024-03-10T23:05:10Z |
| format | Article |
| id | doaj.art-1fb4a51c2adb4c77b4635e67be8f817c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T23:05:10Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1fb4a51c2adb4c77b4635e67be8f817c2023-11-19T09:23:34ZengMDPI AGApplied Sciences2076-34172023-09-0113181014110.3390/app131810141Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from BulgariaVanya Gandova0Olga Teneva1Zhana Petkova2Ivan Iliev3Albena Stoyanova4Department of Analytical and Physical Chemistry, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, BulgariaDepartment of Chemical Technology, University of Plovdiv “Paisii Hilendarski”, 24 Tzar Asen Str., 4000 Plovdiv, BulgariaDepartment of Chemical Technology, University of Plovdiv “Paisii Hilendarski”, 24 Tzar Asen Str., 4000 Plovdiv, BulgariaDepartment of Chemical Technology, University of Plovdiv “Paisii Hilendarski”, 24 Tzar Asen Str., 4000 Plovdiv, BulgariaDepartment Technology of Tobacco, Sugar, Vegetable and Essential Oils, University of Food Technologies, 26 Maritza Blvd., 4002 Plovdiv, BulgariaFlaxseed oil is a prevalent food supplement. On one hand, vegetable oil is used in the food industry and pharmacy due to its health benefits; on the other hand, it has an application as a lubricant oil. The fatty acid composition of the investigated oil was determined as follows: the main fatty acids were <i>α</i>-linolenic (57.5%), oleic (17.5%), linoleic (12.5%), palmitic (6.0%), and stearic acid (4.3%). The content of unsaponifiable matter was 1.4%. The total sterol content was determined (0.5%), with identified <i>β</i>-sitosterol (79.7%) as a main component, followed by stigmasterol. The content of tocopherols was found to be 243 mg/kg. The compound <i>γ</i>-tocopherol predominated (68%) in the tocopherol fraction, followed by <i>γ</i>-tocotrienol (32%). Some physicochemical indicators were also determined—density, surface tension, and dynamic and kinematic viscosity—at the following temperatures: 20, 30, 40, 50, 60, 70, and 80 °C. The increase in temperature led to a decrease in all indexes and good linear dependence was observed. The determined physicochemical indicators provided information about the stability of flaxseed oil, which is very important considering its use in food and technical products.https://www.mdpi.com/2076-3417/13/18/10141flaxseedcompositionphysicochemical properties |
| spellingShingle | Vanya Gandova Olga Teneva Zhana Petkova Ivan Iliev Albena Stoyanova Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria Applied Sciences flaxseed composition physicochemical properties |
| title | Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria |
| title_full | Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria |
| title_fullStr | Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria |
| title_full_unstemmed | Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria |
| title_short | Lipid Composition and Physicochemical Parameters of Flaxseed Oil (<i>Linum usitatissimum</i> L.) from Bulgaria |
| title_sort | lipid composition and physicochemical parameters of flaxseed oil i linum usitatissimum i l from bulgaria |
| topic | flaxseed composition physicochemical properties |
| url | https://www.mdpi.com/2076-3417/13/18/10141 |
| work_keys_str_mv | AT vanyagandova lipidcompositionandphysicochemicalparametersofflaxseedoililinumusitatissimumilfrombulgaria AT olgateneva lipidcompositionandphysicochemicalparametersofflaxseedoililinumusitatissimumilfrombulgaria AT zhanapetkova lipidcompositionandphysicochemicalparametersofflaxseedoililinumusitatissimumilfrombulgaria AT ivaniliev lipidcompositionandphysicochemicalparametersofflaxseedoililinumusitatissimumilfrombulgaria AT albenastoyanova lipidcompositionandphysicochemicalparametersofflaxseedoililinumusitatissimumilfrombulgaria |