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奇亚籽油新型环氧化植物油的物理化学特性

Physicochemical Characterization of Novel Epoxidized Vegetable Oil from Chia Seed Oil.

作者信息

Dominguez-Candela Ivan, Lerma-Canto Alejandro, Cardona Salvador Cayetano, Lora Jaime, Fombuena Vicent

机构信息

Instituto de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell, s/n, 03801 Alcoy, Spain.

Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.

出版信息

Materials (Basel). 2022 Apr 30;15(9):3250. doi: 10.3390/ma15093250.

DOI:10.3390/ma15093250
PMID:35591583
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9100186/
Abstract

In this study, a novel epoxidized vegetable oil (EVO) from chia seed oil (CSO) has been obtained, with the aim to be employed in a great variety of green products related to the polymeric industry, as plasticizers and compatibilizers. Previous to the epoxidation process characterization, the fatty acid (FA) composition of CSO was analyzed using gas chromatography (GC). Epoxidation of CSO has been performed using peracetic acid formed in situ with hydrogen peroxide and acetic acid, applying sulfuric acid as catalyst. The effects of key parameters as temperature (60, 70, and 75 °C), the molar ratio of hydrogen peroxide:double bond (HO:DB) (0.75:1.0 and 1.50:1.0), and reaction time (0-8 h) were evaluated to obtain the highest relative oxirane oxygen yield (). The evaluation of the epoxidation process was carried out through iodine value (), oxirane oxygen content (), epoxy equivalent weight (), and selectivity (). The main functional groups were identified by means of FTIR and H NMR spectroscopy. Physical properties were compared in the different assays. The study of different parameters showed that the best epoxidation conditions were carried out at 75 °C and HO:DB (1.50:1), obtaining an value of 8.26% and an of 193 (g·eq). These high values, even higher than those obtained for commercial epoxidized oils such as soybean or linseed oil, show the potential of the chemical modification of chia seed oil to be used in the development of biopolymers.

摘要

在本研究中，已从奇亚籽油（CSO）中获得了一种新型环氧化植物油（EVO），旨在用于与聚合物工业相关的多种绿色产品中，作为增塑剂和增容剂。在环氧化过程表征之前，使用气相色谱（GC）分析了CSO的脂肪酸（FA）组成。CSO的环氧化是使用过氧化氢和乙酸原位形成的过氧乙酸进行的，以硫酸作为催化剂。评估了温度（60、70和75°C）、过氧化氢与双键的摩尔比（HO:DB）（0.75:1.0和1.50:1.0）以及反应时间（0 - 8小时）等关键参数的影响，以获得最高的相对环氧乙烷氧产率（）。通过碘值（）、环氧乙烷氧含量（）、环氧当量（）和选择性（）对环氧化过程进行评估。通过傅里叶变换红外光谱（FTIR）和核磁共振氢谱（H NMR）鉴定主要官能团。在不同的试验中比较了物理性质。对不同参数的研究表明，最佳环氧化条件是在75°C和HO:DB为1.50:1的条件下进行，环氧乙烷氧产率值为8.26%，环氧当量为193（g·eq）。这些高值，甚至高于大豆油或亚麻籽油等商业环氧化油所获得的值，表明奇亚籽油化学改性在生物聚合物开发中的应用潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/4063ad46bc27/materials-15-03250-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/2cfe77044207/materials-15-03250-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/321387181b87/materials-15-03250-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/09410506e2f0/materials-15-03250-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/ca62e9fe75d8/materials-15-03250-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/0d61a3c2512f/materials-15-03250-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/837e872a531c/materials-15-03250-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/56c700bcef74/materials-15-03250-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/f7e9dd003167/materials-15-03250-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/c4a3f793eda4/materials-15-03250-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/4063ad46bc27/materials-15-03250-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/2cfe77044207/materials-15-03250-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/321387181b87/materials-15-03250-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/09410506e2f0/materials-15-03250-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/ca62e9fe75d8/materials-15-03250-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/0d61a3c2512f/materials-15-03250-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/837e872a531c/materials-15-03250-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/56c700bcef74/materials-15-03250-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/f7e9dd003167/materials-15-03250-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/c4a3f793eda4/materials-15-03250-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6786/9100186/4063ad46bc27/materials-15-03250-g010.jpg

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