Synthesis of Functionalized High‐Oleic Soybean Oil Wax Coatings and Emulsions for Postharvest Treatment of Fresh Citrus Fruit,European Journal of Lipid Science and Technology

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Synthesis of Functionalized High‐Oleic Soybean Oil Wax Coatings and Emulsions for Postharvest Treatment of Fresh Citrus Fruit
European Journal of Lipid Science and Technology ( IF 1.8 ) Pub Date : 2020-05-17 , DOI: 10.1002/ejlt.202000005
Francisco M. A. Leyva‐Gutierrez ₁ , Tao Fei ₁ , Tong Wang ₁

Affiliation

High‐oleic soybean oil is chemically functionalized in order to mimic the structure and physical properties of hydrogenated castor oil (HCO). The resulting wax‐like material is evaluated for use as an alternative to other commercial wax coatings for the postharvest treatment of fresh citrus fruit. The racemic nature of the material inhibits ordered crystalline arrangement and negatively affects its relative crystallinity (17.7%), hardness (0.59 ± 0.04 mm⁻¹), and melting profile (44–46 °C), with respect to HCO oil (37.7%, 5.33 ± 0.01 mm⁻¹, 83–87 °C). Nevertheless, compounding the new material with carnauba wax (CAR) imparts a very attractive gloss and prevents moisture loss significantly better than polyethylene, shellac, and CAR‐based coatings. Compounding the hydroxy‐functionalized high‐oleic soybean wax may potentially reduce dependence on imported CAR and other ingredients used in citrus coating emulsion formulations.

中文翻译：

功能化高油质大豆油蜡涂层和乳液的合成，用于柑橘类水果的采后处理

高油大豆油经过化学官能化处理，以模拟氢化蓖麻油（HCO）的结构和物理性质。对所得蜡状材料进行了评估，以替代新鲜柑橘类水果的采后处理所使用的其他商用蜡涂层。该材料的外消旋性质会抑制有序的晶体排列，并相对于HCO油（37.7％）对其相对结晶度（17.7％），硬度（0.59±0.04 mm ^-1）和熔融曲线（44-46°C）产生负面影响。，5.33±0.01毫米^-1，83–87°C）。尽管如此，将这种新材料与巴西棕榈蜡（CAR）混合使用仍具有非常诱人的光泽，并且比聚乙烯，虫胶和基于CAR的涂料能更好地防止水分流失。复合羟基官能化的高油酸大豆蜡可能会减少对进口CAR和柑橘类涂料乳液配方中使用的其他成分的依赖。

更新日期：2020-05-17

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