Mokbli S, Sbihi H M, Nehdi I A, Romdhani-Younes M, Tan C P, Al-Resayes S I
1Superior Institute of Biotechnology of Sidi Thabet, University Manouba, 2020 Sidi Thabet, Tunisia.
2Chemistry Department, College of Science, King Saud University, P.O. Box 2454, Riyadh, 1145 Saudi Arabia.
J Food Sci Technol. 2018 Jun;55(6):2170-2179. doi: 10.1007/s13197-018-3134-x. Epub 2018 Mar 26.
Herein we examine the characteristics of date seed oil extracted from L. var. seeds (HSO) cultivated in a gardening zone in Tunisia. Its physicochemical properties, fatty acid composition, and thermal and antioxidant properties were evaluated and compared with those of seed oil from another variety of . The results showed that HSO possessed higher contents of oleic (44%) and linoleic (20%) acids than the other seed oil. The total tocopherol and tocotrienol content was 88 mg/100 g oil, where α-tocotrienol (64%) was the major isomer. The total phenolic (91 μg/g oil) and flavonoid contents (18 μg/g oil) of the HSO were determined, and its antioxidant capacities, measured in terms of ABTS and DPPH radical-scavenging capacities, were 210 µM TEAC/g DW and 4.3 mM TEAC/g DW, respectively. The oxidative stability index (OSI) of the oil was 16 h at 110 °C. Furthermore, the OSI of soybean oil was significantly enhanced upon blending with HSO. HSO exhibited higher thermal stability than the other oils and significantly different thermal behavior. The determination of fatty acid composition, physicochemical properties, bioactive content, oxidative stability, and thermal behavior of HSO demonstrated that this renewable resource can be used for edible purposes.
在此，我们研究了从突尼斯一个园艺区种植的L. var.种子（HSO）中提取的枣籽油的特性。对其理化性质、脂肪酸组成以及热性能和抗氧化性能进行了评估，并与另一种枣种子油进行了比较。结果表明，HSO中油酸（44%）和亚油酸（20%）的含量高于另一种种子油。生育酚和生育三烯酚的总含量为88毫克/100克油，其中α-生育三烯酚（64%）是主要异构体。测定了HSO的总酚含量（91微克/克油）和类黄酮含量（18微克/克油），以ABTS和DPPH自由基清除能力衡量的抗氧化能力分别为210微摩尔TEAC/克干重和4.3毫摩尔TEAC/克干重。该油在110℃下的氧化稳定性指数（OSI）为16小时。此外，与HSO混合后，大豆油的OSI显著提高。HSO表现出比其他油更高的热稳定性和明显不同的热行为。对HSO的脂肪酸组成、理化性质、生物活性成分、氧化稳定性和热行为的测定表明，这种可再生资源可用于食用目的。
