Rest Plant Materials with Natural Antioxidants Increase the Oxidative Stability of Omega-3-Rich Norwegian Cold Pressed Camelina sativa Oil,ACS Food Science & Technology

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Rest Plant Materials with Natural Antioxidants Increase the Oxidative Stability of Omega-3-Rich Norwegian Cold Pressed Camelina sativa Oil
ACS Food Science & Technology ( IF 2.6 ) Pub Date : 2021-03-23 , DOI: 10.1021/acsfoodscitech.0c00148
Astrid Nilsson ₁ , Elin-Merete Wetterhus ₁ , Tone-Kari K. Østbye ₁ , John-Erik Haugen ₁ , Gjermund Vogt ₂

Affiliation

The quality of Norwegian cold pressed camelina oil for human consumption and fish feed production, with a special focus on plant rest materials, natural antioxidants, and oxidation products is studied. Both crude oil with plant rest materials (CCO) and centrifuged oil (CO) were highly unsaturated with 39.4% (w/w) α-linolenic acid. The oils were oxidatively stable for 12 months at long-term storage conditions at 4 °C. Lipid oxidation was observed in CO but not in CCO, between 6 and at 9 months at 20 °C. This difference was even higher at accelerated conditions at 40 °C with an increase in PV, AV, and secondary oxidation products and a decrease in tocopherols after 2 weeks in CO but not in CCO. This indicates there are natural antioxidants with stronger antioxidant capacity than tocopherols in association with the plant rest materials in CCO. The polyphenol rutin with antioxidative properties might be a good candidate but needs further studies.

中文翻译：

与天然抗氧化剂休息植物材料增加ω-3丰富的挪威寒冷的氧化稳定性按下亚麻荠油

研究了供人类食用和鱼饲料生产的挪威冷榨茶花油的质量，特别关注植物休息材料，天然抗氧化剂和氧化产物。含植物休息材料的原油（CCO）和离心油（CO）都具有39.4％（w / w）α-亚麻酸的高度不饱和度。这些油在4°C的长期储存条件下氧化稳定12个月。在20°C下6至9个月之间，在CO中观察到脂质氧化，但在CCO中未观察到。在40°C的加速条件下，此差异甚至更高，在CO中2周后，PV中的PV，AV和二次氧化产物增加，而在CCO中，生育酚的含量降低。这表明在CCO中，与抗氧化剂相比，存在天然抗氧化剂具有比生育酚更强的抗氧化能力。

更新日期：2021-05-22

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