红薯梗、茎、叶提取物抗氧化活性研究

用DPPH法分别测定了红薯梗、茎、叶提取物的抗氧化活性，用分光光度法测定了它们的总黄酮含量，并比较了两者的相关性。实验表明：红薯梗、茎、叶提取物均具有较强的抗氧化活性，其抗氧化活性与总黄酮含量的相关系数为0．5073，相关性不显著。     

水包油型食品乳液中天然小分子乳化剂的功能性质及与其他乳化剂相互作用关系的研究进展

水包油型乳液是食品、保健品、药品等的重要成分,单一或复合乳化剂对水包油型乳液的形成、稳定性和功能性质有重要影响。如今消费者对健康和环境保护的关注促使食品生产者更倾向使用天然成分取代合成成分。本文综述在食品工业中具有潜在应用价值小分子天然乳化剂的理化性质,讨论其对乳液稳定性的影响以及在食品工业中的应用情况,并总结在乳液中使用复合乳化剂,尤其是磷脂与其他乳化剂相互作用的性质和机理;最后概括复合乳化剂对乳液功能性质的影响,包括抗氧化活性、抗菌活性和胃肠道消化特性。以期为开发乳液产品、选择乳化剂及其组合提供理论参考。     

福建设施葡萄园土壤氮磷钾丰缺状况及垂直分布特征

以福建寿宁高优葡萄示范园区为研究对象,选取了14个代表性葡萄园(坡地6个和平地8个),按照0～20 cm、20～40 cm和40～60 cm深度分层取样,测定土壤氮、磷、钾含量,研究养分的垂直分布特征。结果表明:平地葡萄园土壤氮磷钾含量明显高于坡地葡萄园;调查区内土壤养分具有明显的表层"积聚效应",土壤全氮、全磷及其有效量和有效钾含量随土层深度的增加而增加;除有效磷和全钾在中等以上水平外,其他指标均处于缺素状态,土壤不平衡缺肥现象比较突出。因此,应充分考虑葡萄园所处的地形位置,合理配施氮磷肥,避免盲目过量施用钾肥,通过增施有机肥和补充土壤微生物菌剂,促进被固定土壤养分的重新利用。不仅减少化肥的投入量,还可以避免因养分大量富集而造成的农业面源污染。     

新形势下新疆纺织服装产业的发展

新疆是国家重点规划的纺织服装产品加工基地和区域性商贸中心,近年来在产业总量上取得了大幅增长。中央和当地政府推出多项有利措施促进行业发展,以提高产品附加值为目标,挖掘地域特色元素进行产品创新。良好的发展环境为未来新疆纺织服装产业的升级提供了保证。     

Risk-based approach to developing a national residue sampling plan for testing under European Union regulation for veterinary medicinal products and coccidiostat feed additives in domestic animal production

A ranking system for veterinary medicinal products and coccidiostat feed additives has been developed as a tool to be applied in a risk-based approach to the residue testing programme for foods of animal origin in the Irish National Residue Control Plan (NRCP). Three characteristics of substances that may occur as residues in food are included in the developed risk ranking system: Potency, as measured by the acceptable daily intake assigned by the European Medicines Agency Committee for Medicinal Products for Veterinary Use, to each substance; Usage, as measured by the three factors of Number of Doses, use on Individual animals or for Group treatment, and Withdrawal Period; and Residue Occurrence, as measured by the number of Non-Compliant Samples in the NRCP. For both Number of Doses and Non-Compliant Samples, data for the 5-year period 2008–12 have been used. The risk ranking system for substances was developed for beef cattle, sheep and goats, pigs, chickens and dairy cattle using a scoring system applied to the various parameters described above to give an overall score based on the following equation: Potency × Usage (Number of Doses + Individual/Group Use + Withdrawal Period) × Residue Occurrence. Applying this risk ranking system, the following substances are ranked very highly: antimicrobials such as amoxicillin (for all species except pigs), marbofloxacillin (for beef cattle), oxytetracycline (for all species except chickens), sulfadiazine with trimethoprim (for pigs and chickens) and tilmicosin (for chickens); antiparasitic drugs, such as the benzimidazoles triclabendazole (for beef and dairy cattle), fenbendazole/oxfendazole (for sheep/goats and dairy cattle) and albendazole (for dairy cattle), the avermectin ivermectin (for beef cattle), and anti-fluke drugs closantel and rafoxanide (for sheep/goats); the anticoccidials monensin, narasin, nicarbazin and toltrazuril (for chickens). The risk ranking system described is a relatively simple system designed to provide a reliable basis for selecting the veterinary medicinal products and coccidiostat feed additives that might be prioritised for residue testing.     

螺旋藻多糖提取新工艺的研究

提取螺旋藻多糖的传统工艺存在着流程长,操作复杂,有机溶剂消耗大等问题。采用三氯乙酸（ＴＣＡ）法代替Ｓｅｖａｇ法去除蛋白质,使改进后的提取工艺中蛋白质去除率增加,多糖损失率降低,流程缩短。通过用ＤＥＡＥ－Ｓｐｅｈａｒｏｓｅ和Ｓｅｐｈａｄｅｘ－Ｇ５０柱的分离纯化得到２个多糖组分。经测定,其相对分子质量分别为Ｍｒ１＝１２６００,Ｍｒ２＝１６６００。组分１的单糖组成：Ｄ－葡萄糖、Ｄ－甘露糖、Ｄ－半乳糖和葡萄糖醛酸;组分２的单糖组成：Ｄ－葡萄糖、Ｄ－木糖、Ｌ－鼠李糖和葡萄糖醛酸。     

微波能对紫菜杀菌保鲜的研究

利用微波能对小包装紫菜进行杀菌保鲜研究。通过正交试验获得微波杀菌的最佳条件,并与常规高温灭菌法进行比较分析,结果表明,微波杀菌后细菌总数均低于对照组,且紫菜的主要营养成分蛋白质、碘的含量损失最少,保鲜期比常规灭菌法长。     

精漂染一浴法助剂SV-1的应用

由多种表面活性剂和高分子聚合物复配成的精漂染一浴法助剂ＳＶ － １ 具有渗透、匀染、稳定双氧水、净洗等功能。经直接、活性染料应用试验表明：ＳＶ－ １ 化学性质稳定,耐强碱,适用于纯棉针织物煮练、漂白、染色一浴工艺;染色的织物无硅斑,手感柔软,牢度和强力符合质量要求;而且缩短了工艺流程,节能省力,降低了环境污染     

油脂氧化稳定性的研究

用Ｒａｎｃｉｍａｔ仪器测定了油脂氧化稳定性。结果表明,温度的高低,脂肪酸不饱和度,抗氧化剂和增效剂的使用,均与油脂氧化稳定性有着密切的关系。     

抗菌抗病毒产品的开发

介绍了新开发的织物抗菌抗病毒整理工艺技术及其MX-08织物的性能和抗菌抗病毒效果.