Current technologies in the extraction, enrichment and analytical detection of tocopherols and tocotrienols: A review

Abstract

During the past few years the scientific and medical community has been confronted with a continual interest in vitamin E with the interest prompted by new discoveries. Tocopherols and tocotrienols, commonly known as vitamin E, are extremely invaluable compounds and have various nutritional functionalities and benefits to human health. Great deals of research projects have been launched in order to develop effective methods for the extraction of vitamin E. By and large, three distinct extractive methods are usually employed: supercritical fluid extraction (SFE), molecular distillation, and adsorption methods. These methods are sensitive to different experimental conditions, such as pressure, temperature, and flow rate with noticeable effects on the efficiency of the extraction and enrichment of vitamin E. This review has covered the most commonly adapted extraction methods and has probed into the extraction yields under variable operational parameters.

Fatty Acid Composition, Phytochemistry, Antioxidant Activity on Seed Coat and Kernel of Paeonia ostii from Main Geographic Production Areas

“…Tocopherols have commanded the most interest because of their availability and overall health impact, and their central role in preventing oxidation at the cellular level [38]. Tocopherols are a group of fat-soluble antioxidants and can be divided into α-, β-, γ-, and δforms [39].…”

Assessing the Impact of Oil Types and Grades on Tocopherol and Tocotrienol Contents in Vegetable Oils with Chemometric Methods

“…Tocopherols and tocotrienols, collectively referred to as tocols or vitamin E, are a family of naturally occurring fat-soluble compounds, which include eight members (α-, β-, γ-, and δ-tocopherol (T); α-, β-, γ-, and δ-tocotrienol (T3)) [1]. As shown in Figure 1, tocols consist of two primary parts: the chromanol ring and the hydrophobic side chain.…”

Effect of anionic surfactant on mesoporous particles for removal of methylene blue

“…Effect of anionic surfactant on mesoporous particles for removal of methylene blue reached after 20 min from starting reaction. After that, the removal of dye was increased slowly due to particle aggregation resulting from high adsorbent mass [16] . The high are removal in case in modified samples was attributed to morphological, surface and low aggregations parameter.…”

“…It is an ultimate trendy model for a single solute system,depends on the apportionment of solute between an aqueous phase and solid phase at the stable [19] . Freundlich model depicts the adsorption within limited range only.Freundlich equation was listed in Table1;'n' values are among 1 and10 that represent suitable adsorption [16] . Freundlich isotherms adsorption for (MB) viewed as in Figure (5b).…”