高淀粉植物饮料的稳定性研究

用胶体化学的基本原理,对湘莲汁、甜玉米汁等高淀粉植物饮料的稳定性进行了系统的研究,确定了湘莲汁、甜玉米汁的最佳生产工艺,经多家工厂生产应用证明,按该工艺生产的湘莲汁、甜玉米汁稳定期可达1年以上。     

荷叶淡竹叶功能性含乳饮料的工艺研究

以鲜牛乳为主要原料,适量添加荷叶和淡竹叶浸提汁及其他辅料,研制出口感优良、风味独特、营养丰富、质量稳定的新型含乳饮料,探讨了荷叶、淡竹叶的浸提工艺,并通过正交实验得出了饮料的最佳配方。结果显示,该饮料的最佳配方为:鲜牛乳35%、荷叶浸提汁30%、淡竹叶浸提汁15%、白砂糖10%、柠檬酸0.15%、复合稳定剂0.15%。     

Inhibition effect of procyanidins from lotus seedpod on mouse B16 melanoma invivo and in vitro

Significant growth inhibition effects of procyanidins from lotus (Nelumbo nucifera Gaertn.) seedpod (LSPCs) on mouse melanoma B16 were found both in vivo and in vitro. In vivo treatment with LSPCs inhibited tumour growth in C₅₇BL/6 J mice by 55.3% in terms of average tumour weight. LSPCs can significantly (P < 0.05) decrease lipid peroxidation (LPO) levels and increase the activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) in liver tissue. In vitro assay of anti-cancer activities suggested that LSPCs (25–100 μg/ml) possessed cytotoxicities against mouse melanoma B16 in a dose-dependent mode. Furthermore, LSPCs had significant (P < 0.05) stimulatory effects on mouse splenocyte proliferation. The prevention of tumour growth was exerted through diverse mechanisms, including cell-cycle arrest, induction of tumour cell death by apoptosis and increase of Ca²⁺ ions, together with stimulation of antioxidant enzyme activities and immunomodulatory activities.     

荷叶多糖提取工艺的研究

采用水提法提取荷叶中的多糖成分。通过单因素梯度实验和正交实验，得到荷叶多糖提取的最佳浸提条件为：浸提温度75℃，浸提时间1．5h，固液比1：35，浸提次数1次。     

Fabrication of nickel micromesh sheets and evaluation of their water-repellent and water-proof abilities

Nickel micromesh sheets were designed and fabricated and their water-repellent and water-proof abilities were characterized. The network-type microstructures of the micromesh sheets functioned as micro-protrusions of lotus leaves, which allowed the sheets to superhydrophobic. The micromesh enabled the material waves, including sound and light waves, to pass through the microholes, but repelled water. Because of the effects of the micromesh and plasma polymerized fluorocarbon (PPFC) coating, the contact angle of the micromesh sheets was drastically jumped up from 63° of the non-coated nickel flat film to 140° of the PPFC-coated nickel micromesh, which modified the nickel sheet from hydrophilic to superhydrophobic. The narrower lattice width in the micromesh was more effective at enhancing the water-repellency. On the other hand, the narrow lattice width weakened the water-proof ability. Reducing the hole size and increasing the lattice width of the micromesh are necessary to improve the water-proof ability.     

在Lotus Notes中实现痕迹跟踪的方法

根据办公自动化系统中的公文流转和传统的手工流转中关于笔迹跟踪的矛盾 ,提出了基于LotusDomino/Notes5 .0 3构建的企业办公自动化系统中 ,如何在公文流转的过程中实现公文修改痕迹跟踪的三种方法 ,并指出了这三种方法的优缺点     

HTML在基于WEB办公自动化系统中的应用

根据办公自动化系统的最新发展要求,对办公自动化系统的开发问题进行了探讨,提出了在基于WEB办公自动化系统的开发设计中应充分利用HTML技术的观点．实际运行证明,该方法切实可行,取得良好的效果．     

Lotus Domino/Notes在网络办公自动化中的应用

发文管理系统是一个基于工作流管理的网络办公自动化系统.它采用世界领先的群件和电子邮件产品Lotus Domino/Notes为开发与使用平台.在网络环境下,该系统使发文工作的各步:起草人起草公文,各级领导审批,核稿人核稿,文书下发职能部与归档等,真正实现了自动化.利用Notes的强大安全机制,通过为用户指定权限,电子签名等技术,满足了实际工作中的安全性要求.     

架构企业办公自动化

针对陈旧的企业办公,提出一套用Notes实现的办公自动化系统的设计方案。     

超声辅助离子液体提取荷叶黄酮及其抗氧化活性

优化超声辅助离子液体提取荷叶黄酮工艺,并评价其抗氧化活性。以荷叶提取物为原料,在单因素试验基础上,以离子液体浓度、超声功率、超声时间为影响因素,黄酮提取率为评价指标,响应面法优化提取工艺,测定黄酮对 DPPH、·OH自由基的清除作用。最佳条件为0.9 mol·L-1的1-己基-3-甲基咪唑四氟硼酸盐（[C6mim]BF4）溶液作为提取溶剂,固液比1:25 g·mL-1,超声功率186W,超声时间24min,提取温度70℃,提取率为4.65%。抗氧化活性研究表明,质量浓度为1.6 mg·mL-1时,荷叶黄酮对DPPH、·OH自由基清除率分别为63.2%和55.4%,IC50分别为0.8847mg·mL-1和1.1445mg·mL-1,还原力测定吸光度为0.72Abs。该方法稳定可靠,可用于超声辅助离子液体提取抗氧化活性较强的荷叶黄酮