Properties of soybean oil oleogels produced from sophorolipid-derived hydroxy fatty acids, methyl esters and hydrogenated Lesquerella seed oil

IF 1.9 4区农林科学 Q3 CHEMISTRY, APPLIED

Journal of the American Oil Chemists Society Pub Date : 2024-04-14 DOI:10.1002/aocs.12843

Jill K. Winkler-Moser, Richard D. Ashby, Hailemichael O. Yosief, Joseph Msanne, Steven C. Peterson, Grigor B. Bantchev, Steven C. Cermak, Frederick C. Felker

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Abstract

Sophorolipids (SL) are glycolipids composed of a sophorose head-group linked to a hydroxy-fatty acid tail which makes them a potential source of structurally unique biobased hydroxy fatty acids. Furthermore, Lesquerella is a native southwestern plant that has been commercially cultivated as a replacement for castor seed oil due to high seed oil concentrations of 14-hydroxy-eicosenoic acid (14-OH-C20:1c11). In this study, SL-derived hydroxy fatty acids and methyl esters containing 15-hydroxy-palmitic acid (15-OH-C16), 17-hydroxy-stearic acid (17-OH-C18), 15-hydroxy-palmitic acid methyl ester (15-OH-C16ME), 17-hydroxy-stearic acid methyl ester (17-OH-C18ME), and 13-hydroxy-behenic acid methyl ester (13OH-C22ME) were obtained from the SL produced by two yeast strains. In addition, hydrogenated Lesquerella oil (HLO) was made with ~62% 14-OH-eicosanoic (C20) acid (14-OH-C20). These materials, along with 12-hydroxy-stearic acid (12-OH-C18) as a standard for comparison were used to make soybean oil oleogels, and their properties determined. The minimum gelation concentration (MGC) of 12-OH-C18 was 1% (wt/wt), while the MGC of 15-OH-C16 and 17-OH-C18 were 5% and 10%, respectively. The MGC for 15-OH-C16ME was 5%, but 17-OH-C18ME was unable to form a stable gel at concentrations up to 10%. HLO formed a viscous solution rather than an oleogel, but its crystal morphology underwent a large transformation during storage over a 2.5-month period, after which it was able to form a stable gel. SL-based hydroxy fatty acids were able to form oleogels in soybean oil and have the potential to be considered as a new source of low-molecular weight oleogelators as well as biobased hydroxy fatty acids.

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由槐脂衍生的羟基脂肪酸、甲酯和氢化莱斯奎拉籽油制成的大豆油油凝胶的特性

槐糖脂（SL）是由槐糖头基与羟基脂肪酸尾相连的糖脂，这使其成为结构独特的生物基羟基脂肪酸的潜在来源。此外，莱斯奎拉是一种原产于美国西南部的植物，由于其种子油中含有高浓度的 14-羟基二十烯酸（14-OH-C20:1c11），已被商业化栽培作为蓖麻籽油的替代品。在这项研究中，SL 衍生的羟基脂肪酸和甲酯含有 15-羟基棕榈酸（15-OH-C16）、17-羟基硬脂酸（17-OH-C18）、15-羟基棕榈酸甲酯（15-OH-C16ME）、17-hydroxy-stearic acid methyl ester (17-OH-C18ME), and 13-hydroxy-behenic acid methyl ester (13OH-C22ME) were obtained from the SL produced by two yeast strains.此外，氢化莱斯奎拉油（HLO）是用约 62% 的 14-OH-二十烷酸（C20）（14-OH-C20）制成的。这些材料与作为比较标准的 12-羟基硬脂酸（12-OH-C18）一起被用来制造大豆油油凝胶，并测定其性质。12-OH-C18 的最小凝胶浓度（MGC）为 1%（重量比），而 15-OH-C16 和 17-OH-C18 的最小凝胶浓度分别为 5%和 10%。15-OH-C16ME 的 MGC 为 5%，但 17-OH-C18ME 在浓度达到 10% 时也无法形成稳定的凝胶。HLO 形成的是粘稠溶液而非油凝胶，但其晶体形态在 2.5 个月的储存过程中发生了巨大变化，之后便能形成稳定的凝胶。基于 SL 的羟基脂肪酸能够在大豆油中形成油凝胶，有望被视为低分子量油凝胶剂和生物基羟基脂肪酸的新来源。

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来源期刊

Journal of the American Oil Chemists Society 工程技术-食品科技

CiteScore

4.10

自引率

5.00%

发文量

审稿时长

2.4 months

期刊介绍： The Journal of the American Oil Chemists’ Society (JAOCS) is an international peer-reviewed journal that publishes significant original scientific research and technological advances on fats, oils, oilseed proteins, and related materials through original research articles, invited reviews, short communications, and letters to the editor. We seek to publish reports that will significantly advance scientific understanding through hypothesis driven research, innovations, and important new information pertaining to analysis, properties, processing, products, and applications of these food and industrial resources. Breakthroughs in food science and technology, biotechnology (including genomics, biomechanisms, biocatalysis and bioprocessing), and industrial products and applications are particularly appropriate. JAOCS also considers reports on the lipid composition of new, unique, and traditional sources of lipids that definitively address a research hypothesis and advances scientific understanding. However, the genus and species of the source must be verified by appropriate means of classification. In addition, the GPS location of the harvested materials and seed or vegetative samples should be deposited in an accredited germplasm repository. Compositional data suitable for Original Research Articles must embody replicated estimate of tissue constituents, such as oil, protein, carbohydrate, fatty acid, phospholipid, tocopherol, sterol, and carotenoid compositions. Other components unique to the specific plant or animal source may be reported. Furthermore, lipid composition papers should incorporate elements of yeartoyear, environmental, and/ or cultivar variations through use of appropriate statistical analyses.