莲藕采后生理生化特性研究

以新鲜莲藕为试验材料,对不同品种的莲藕在贮藏过程中的生理生化特性进行了研究。结果表明:贮藏过程中表皮白度逐渐下降,但藕肉白度变化不大;多酚氧化酶活性和多酚含量变化均呈现出先上升后下降的趋势;纤维素含量对藕的脆度变化有一定的影响;综合白度变化、脆度和腐烂率等因素来考察,3个品种中以济南大卧龙品质最优。     

Nutritional quality evaluation of electron beam-irradiated lotus (Nelumbo nucifera) seeds

Nutritional and antinutritional qualities, and functional properties of raw and electron beam-irradiated (doses: 0, 2.5, 5, 7.5, 10, 15 and 30 kGy) lotus seeds were studied. Seeds were rich in protein, amino acids, unsaturated fatty acids and minerals, without heavy metal contamination. Irradiation of seeds revealed a decrease in crude protein and fibre, which was not significant at any of the doses. However, significant increase of ash (10 kGy onwards) and carbohydrates (at 30 kGy) were recorded after irradiation. Seed flours showed a significant dose-dependent decrease in water absorption capacity, while oil absorption capacity significantly increased from 10 kGy onwards (p < 0.05). Also, significant increase in protein solubility (5 kGy onwards) and foaming capacity (7.5 kGy onwards) with improvement in the least gelation capacity (5 kGy onwards) of seed flour (p < 0.05) was recorded after irradiation. Electron beam irradiation of seeds resulted in significant dose-dependent elevation of total phenolics and tannins, while phytic acid was eliminated at 5 kGy. Seeds of lotus can serve as food and minimise protein-energy malnutrition of economically weaker sections of the population in developing countries. The seed flours also possess great potential for development of new food products and formulations. As a physical method of preservation, electron beam irradiation was effective in the retention of the nutritional qualities of lotus seeds and is recommended for commercial exploitation.     

莲花水电站大坝渗流分析

本文通过对莲花水电站大坝渗流分析,讨论了莲花大坝渗流稳定情况,探讨了高寒地区混凝土面板堆石坝的渗流特点。     

基于Lotus Domino的简单工作流的设计与实现

在Lotus Domino平台上利用邮件数据库和Lotus Workflow虽然能创建复杂的工作流，但开发人员的工作量较大。为了能迅速地创建工作流应用程序并降低开发工作量，利用“作者”域和视图两类设计元素对数据库中的文档进行过滤，同时在表单中设置状态域，标示文档所处的活动，编程实现文档按状态域被路由到不同的评阅者，从而达到文档流动的目的。利用这种方法可以迅速开发比较简单的工作流应用程序，同时该方法的实现也相对简单，对其他工作流应用系统的开发具有一定参考价值。     

Lotus Domino／NotesR5与管理信息系统MIS的集成

阐述办公自动化(OA)系统与管理信息系统之间的集成技术,使整个工作流数据通过OA数据接口与企业现有的MIS系统自动交换数据。以SQL数据库作为后台数据库,通过在notes中调用SQL语句实现二者之间的数据集成,实现了Domino数据库和Sybase/Oracle等关系型数据库的数据信息的交互,使OA系统的协同工作结果能与企业的MIS系统有效的沟通和交换,提高企业的集成工作效率。     

基于LOTUS DOMINO/NOTES的文档管理系统

介绍了基于LOTUS DOMINO／NOTES文档管理系统的开发过程，该系统真正实现文档办公的工作流程，不仅可以实现纸制文件的归档，而且可以实现电子文档的归档，同时实现了自动组卷、封卷、毁卷、回收、查询和借阅功能，真正提高工作效率，为最终实现无纸化办公奠定基础。     

Lotus Notes在办公自动化系统中的应用

介绍了Lotus Notes这一以"知识管理"为目标,以"信息交流"为手段的系统,说明了它在办公自动化领域的一些应用.     

Effects of chitosan-based coating and modified atmosphere packaging (MAP) on browning and shelf life of fresh-cut lotus root (Nelumbo nucifera Gaerth)

The present study investigated the effect of chitosan coating containing antibrowning agents and modified atmosphere packaging (MAP) on the browning and shelf life of fresh-cut lotus root stored at 4 °C for 10 days. The atmosphere in the packages was evaluated for O₂ and CO₂ concentrations. The browning on the surface of lotus root slices was prevented by chitosan-based coating and MAP treatment. L* values of coated + MAP and control samples were 68.8 and 48.9 after 8 days storage, respectively. For a^? and b^? values, samples of coated + MAP treatment had the slowest increasing trends among all the treatments. At the end of storage, the coated + MAP samples exhibited the lowest polyphenol oxidase (PPO) activity and malondialdehyde (MDA) content. Its highest overall visual quality (OVQ) scores (> 7) demonstrated that chitosan-based coating + MAP treatment could provide a better inhibitory effect on the browning and extend the shelf life of fresh-cut lotus root.Industrial relevance: Fresh-cut vegetables have drawn the attention of industry as a novel lightly processed product. Both edible coating and MAP treatment cause changes in atmosphere composition and respiration rate of lotus root slices. This combined treatment could be used to control the browning and improve the storage life of this fresh-cut vegetable. This information could be useful for the development of novel application to edible coating and MAP design for lightly processed lotus root.     

防止藕汁褐变工艺的研究

利用生产工艺和化学药物来控制藕汁饮料褐变,如减少蔗塘用量,选用白花莲藕品种、采用榨汁法工艺使汁渣迅速分离、添加柠檬酸等都有明显效果。     

荷叶蜂蜜保健饮料工艺研究

以荷叶、蜂蜜、甘草为主要原料制作保健饮料，通过正交试验对原料取汁及饮料配方进行优选，筛选出荷叶汁、甘草汁提取条件，得到淡黄色的荷叶蜂蜜保健饮料，入口甘甜，回味纯厚，具有独特的荷叶清香风味。