Ubeyitogullari Ali, Ciftci Ozan N
Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, 68588-6205, USA.
Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588-6205, United States.
Curr Res Food Sci. 2022 Feb 25;5:553-563. doi: 10.1016/j.crfs.2022.01.020. eCollection 2022.
Tomato peel and seed from tomato processing industry are treated as waste; however, they contain lycopene, a high-value bioactive compound. In this study, lycopene was extracted from tomato peel and seed using supercritical carbon dioxide (SC-CO) and hexane, and the bioaccessibilities of lycopene in the SC-CO- and hexane-extracted oleoresins were investigated for the first time. The (Z)-lycopene content of the SC-CO-extracted oleoresin (69%) was higher than that of hexane-extracted oleoresin (45%). Separation of the insoluble fraction from the oleoresins increased the (Z)-lycopene contents of the SC-CO- and hexane-extracted oil fractions to 80% and 49%, respectively. The bioaccessibility of total-lycopene in the oleoresins was increased by 3.3-fold via SC-CO extraction, which was attributed to higher (Z)-lycopene content, and small-sized uniform distribution of lycopene in the oleoresin. SC-CO extraction is not only a green method for extraction of bioactive compounds, but also has the potential to improve health benefits of bioactive compounds.
番茄加工行业产生的番茄皮和籽被视为废弃物；然而，它们含有番茄红素，这是一种高价值的生物活性化合物。在本研究中，使用超临界二氧化碳（SC-CO）和己烷从番茄皮和籽中提取番茄红素，并首次研究了SC-CO和己烷提取的油树脂中番茄红素的生物可及性。SC-CO提取的油树脂中（Z）-番茄红素含量（69%）高于己烷提取的油树脂（45%）。从油树脂中分离出不溶部分后，SC-CO和己烷提取的油部分中（Z）-番茄红素含量分别提高到80%和49%。通过SC-CO提取，油树脂中总番茄红素的生物可及性提高了3.3倍，这归因于较高的（Z）-番茄红素含量以及番茄红素在油树脂中的小尺寸均匀分布。SC-CO提取不仅是一种提取生物活性化合物的绿色方法，而且具有提高生物活性化合物健康益处的潜力。
