Bakota Erica L, Winkler-Moser Jill K, Berhow Mark A, Eller Fred J, Vaughn Steven F
United States Dept. of Agriculture, Agricultural Research Service, Natl. Center for Agricultural Utilization Research, Functional Foods Research, 1815 N. Univ. St., Peoria, IL, 61604, U.S.A.
J Food Sci. 2015 Apr;80(4):C711-7. doi: 10.1111/1750-3841.12837. Epub 2015 Mar 21.
An extract of Salvia officinalis (garden sage) was prepared using supercritical carbon dioxide (SC-CO2 ) extraction, followed by hot water extraction. The resulting extract was enriched in polyphenols, including rosmarinic acid (RA), which has shown promising health benefits in animals. The extract contained RA at a concentration of 28.4 mg/g, representing a significant enrichment from the RA content in sage leaves. This extract was incorporated into oil-in-water emulsions as a source of lipid antioxidants and compared to emulsions containing pure rosmarinic acid. Both treatments were effective in suppressing lipid oxidation. The extract was evaluated by a trained sensory panel in a tea formulation. While the panel could discriminate among extract-treated and control samples, panelists demonstrated high acceptability of the sage extract in a tea.
采用超临界二氧化碳（SC-CO2）萃取法，随后进行热水萃取，制备了鼠尾草（花园鼠尾草）提取物。所得提取物富含多酚，包括迷迭香酸（RA），迷迭香酸已在动物实验中显示出良好的健康益处。该提取物中RA的浓度为28.4毫克/克，与鼠尾草叶中的RA含量相比有显著富集。将该提取物作为脂质抗氧化剂的来源加入水包油乳液中，并与含有纯迷迭香酸的乳液进行比较。两种处理在抑制脂质氧化方面均有效。由经过训练的感官评价小组对该提取物在茶配方中的效果进行了评估。虽然评价小组能够区分提取物处理的样品和对照样品，但评价员们对茶中鼠尾草提取物的接受度很高。
