The objective of this study was to investigate the impact of seed storage time on the quality of cold-pressed sunflower oil. The quality and oxidative stability of oil was determined in samples of domestic varieties of sunflower hybrid, linoleic type seeds, obtained from fresh seeds and from seeds stored in silo cell for 6 and 12 months at temperature below 30oC and in good ventilation conditions. It was found that the longer storage time of seeds had a negative impact on many quality aspects of the oil, such as flavor, odor and aroma, primarily on the sensory profile. Chemical characteristics and oxidative stability of oil were also influenced by the storage time, which was confirmed by increased values of the acid value (AV) and peroxide value (PV) of the oil samples. Fresh seed oil had an AV of 0.49±0.01 mgKOH/g, while oils that were obtained from one-year old seeds had an AV of 1.95±0.02 mgKOH/g. Content of the primary oxidation products in the oil obtained by cold-pressing of the fresh seeds was 1.73±0.02 mmol/kg (measured as PV), and 2.22±0.07 mmol/kg in that from the seeds stored for 12 months. The anisidine value for the oil obtained from the seeds stored for 12 months was 0.86±0.04 (100A1% 350nm).[ Projekat Ministarstva nauke Republike Srbije, br. TR 31014]
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机译：这项研究的目的是调查种子贮藏时间对冷榨向日葵油品质的影响。测定了向日葵杂种，亚油酸型种子的国内品种样品的油质和氧化稳定性，这些样品取自新鲜种子以及在低于30oC的温度和良好通风条件下于筒仓中储存6个月和12个月的种子。发现种子的较长存储时间对油的许多质量方面具有负面影响，例如风味，气味和香气，主要是对感官特征的影响。油的化学特性和氧化稳定性也受保存时间的影响，这可以通过油样品的酸值（AV）和过氧化物值（PV）的增加来确认。新鲜种子油的AV值为0.49±0.01 mgKOH / g，而从一年龄种子获得的油的AV值为1.95±0.02 mgKOH / g。通过对新鲜种子进行冷压而获得的油中的初级氧化产物的含量为1.73±0.02 mmol / kg（以PV计），而在储存12个月的种子中为2.22±0.07 mmol / kg。从储存12个月的种子中获得的油的茴香胺值为0.86±0.04（100Al％350nm）。[Projekat Ministarstva nauke Republike Srbije，br。 TR 31014]
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