In vitro bioaccessibility and physicochemical properties of phytosterol linoleic ester synthesized from soybean sterol and linoleic acid.

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dc.contributor.authorYang, Fuming
dc.contributor.authorOyeyinka, Samson
dc.contributor.authorXu, Weili
dc.contributor.authorMa, Ying
dc.contributor.authorZhou, Shaobo
dc.date.accessioned2018-05-23T10:10:17Z
dc.date.available2018-05-23T10:10:17Z
dc.date.issued2018-06
dc.description.abstractPhytosterols are bioactive components capable of reducing cholesterol level in serum and reducing risk of arteriosclerosis. In this study, conditions for the synthesis of maximum yield of phytosterol linoleic ester (PLE) was optimized and the physicochemical properties and in vitro bioaccessibility of the PLE were assessed. Under the optimized condition of 1:1.1 mol ratio of phytosterol and linoleoyl chloride at 80 °C for 1.5 h, the conversion rate of phytosterol reached 96.1%. Its solubility in oil increased 20 times, up to 33.8%. Also, peroxide value of PLE was much lower than linoleic acid (32.9 and 47.0 mmol/kg), which means better oxidative stability. Bioaccessibility of PLE was affected by time, concentration of bile extract, and dissolved medium. It was 4.93% alone, increased by 2.5 times compare to phytosterol; or 53.46% in oil, under the condition of 40 mg/mL bile extract for 120 min. In conclusion, under the tested condition, phytosterol conversion rate, its solubility in oil and bioaccessibility were improved significantly. The method showed great potential in manufacture high quality and quantity of PLE.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/251
dc.language.isoenen_US
dc.publisherPublished by Elsevier for Journal of the Swiss Society of Food Science and Technologyen_US
dc.subjectPhytosterol;en_US
dc.subjectPhytosterol linoleic ester;en_US
dc.subjectBioaccessibility In vitroen_US
dc.subjectLinoleic acid;en_US
dc.subjectSynthesis method;en_US
dc.titleIn vitro bioaccessibility and physicochemical properties of phytosterol linoleic ester synthesized from soybean sterol and linoleic acid.en_US
dc.typeArticleen_US

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