Li Wenfeng, Zhang Yaxi, Deng Hanlu, Yuan Hong, Fan Xin, Yang Hongyan, Tan Si
School of Life Science and Biotechnology, Yangtze Normal University, Chongqing 408100, China.
Medical School, Xi'an Peihua University, Xi'an, Shaanxi 710125, China.
Food Chem X. 2023 Mar 10;18:100633. doi: 10.1016/j.fochx.2023.100633. eCollection 2023 Jun 30.
This study aims to examine the effects of various drying methods, namely vacuum freeze drying (VFD), vacuum drying (VD), hot air drying (HAD), sun drying (SD), and air-impingement jet drying (AIJD), on and bioaccessibility of red radish anthocyanins. By color parameters, VFD- and AIJD-dried red radish showed redder color to HAD-, SD-, and VD-dried red radish. SEM images of dried red radish showed multiple holes and loose interior structure. Forty-six anthocyanins were identified in red radish. Original, and digestive samples from VFD-dried red radish contained more anthocyanins and were more bioaccessibility than fresh and other dried red radishes. In and research revealed that dried red radish showed weaker and stronger FRAP and ABTS scavenging activities than fresh red radish. Colon content of mice had significantly higher FRAP and ABTS scavenging activities than the stomach, small intestine, and cecum contents.
本研究旨在考察各种干燥方法,即真空冷冻干燥(VFD)、真空干燥(VD)、热风干燥(HAD)、日晒干燥(SD)和气喷冲击干燥(AIJD)对红萝卜花青素含量及生物可及性的影响。通过颜色参数可知,VFD干燥和AIJD干燥的红萝卜比HAD干燥、SD干燥和VD干燥的红萝卜颜色更红。红萝卜干燥后的扫描电子显微镜图像显示有多个孔洞且内部结构疏松。在红萝卜中鉴定出了46种花青素。VFD干燥红萝卜的原始、体外消化和体内消化样品中花青素含量更高,且比新鲜红萝卜和其他干燥红萝卜具有更高的生物可及性。体外和体内研究表明,干燥红萝卜的铁还原抗氧化能力(FRAP)和2,2'-联氮-双-3-乙基苯并噻唑啉-6-磺酸(ABTS)清除活性比新鲜红萝卜弱和强。小鼠结肠内容物的FRAP和ABTS清除活性显著高于胃、小肠和盲肠内容物。