纸浆漂白过程中二恶英的污染及其防治

本文介绍了造纸工业中二恶英的形成机理及危害，并对二恶英污染的防治措施进行了综述。     

发展我国制革企业刍议

中国已入世 ,制革业将拥有无限机遇 ,但制革厂还现存一些亟待解决的问题。解析了制革厂的技术创新、经营管理等方面的问题。     

利用转基因植物从源头改善制浆造纸工业污染的研究

本文分析了中国制浆造纸工业污染现状，综述了国际上有关生物技术在防治造纸污染方面的研究进展，着重介绍了木质素分子生物学以及利用转基因植物降低造纸原料中木质素含量的研究趋势和我们的对策。     

有害金属铅-特异性亲合活性成分的筛选

铅是一种对人体和动物有累积毒性作用的重金属,可引起内脏器官的损害、免疫功能和中枢神经系统功能的紊乱。工业经济的不断发展和人们生活行为的改变,使得人类至今无法摆脱铅污染所带来的危害,而且有加重的现象,探索和研究"二级控制"的手段与方法在铅污染危害控制中变得十分重要。本研究从多种无毒、安全的微生物中筛选出对铅有吸附作用的啤酒酵母、红螺菌、乳酸杆菌进行体外吸铅模拟实验,然后用吸附效率达96%的热变性的啤酒酵母作为吸附铅的最适菌,以该菌菌体的胞内蛋白、细胞壁多糖进行吸铅作用比较研究,结果表明啤酒酵母细胞壁多糖组份为较好的铅亲合活性物,其吸附量可达111.04mg(铅离子)/g多糖。本研究结果表明,啤酒酵母细胞壁多糖具有良好的吸附铅效果,有望成为一种效果较为理想的功能性食品添加剂,这将为铅污染"二级控制"提供了一个新的可能的手段。     

啤酒污泥中重金属污染状况调查与评价

重金属超标是限制大量啤酒污泥进行农业利用的主要因素.对湖北金龙泉啤酒(孝感)有限公司废水处理站产生的污泥中的重金属含量进行了分析和测定,并对其污染运用单项污染指数和综合污染指数进行了环境质量评价.结果表明,污泥中重金属污染主要为镉、汞和铜3种元素,污染等级为重污染;其综合污染指数为7.29,达重污染等级.     

甘蔗糖蜜酒精生产中的废水治理——蒸馏残液减排途径探讨

甘蔗糖厂附产酒精,酒精粗馏残液是高浓度有机废水,排量大,是糖厂的主要污染源,要求达到零排放。在实地调研的基础上,对生产工艺及工艺条件进行改进,提出4种减排途径,其投资小,容易改进。改进后的糖酒厂可将日产15 t、96%vol酒精的日排粗馏残液量由原来的241 t减少至134 t,日减残液上百吨。     

冻水产品中单核细胞增生李斯特氏菌的检验研究

为了确保冻水产品安全,准确检测冻水产品中对单核细胞增生李斯特氏菌,从湛江地区进出口水产品加工厂抽取了1158份冻水产品进行单核细胞增生李斯特氏菌分析,本实验采用了全自动酶联荧光免疫分析仪筛选法进行了初步筛选,对分离菌株用APIListeria试剂盒进行鉴定。结果显示：1158个样品中有7个样品（0.60%）为单核细胞增生李斯特氏菌阳性,另有4个（0.35%）为L.innocua、L.welschimeri和L.grayi阳性。本试验VidasLMO检测试剂条呈现4个假阳性,经鉴定为李斯特氏菌属中L.innocua、L.welschimeri和L.grayi,表明VidasLMO检测试剂条存在一定的假阳性率。     

Microbial profile and bacterial characterisation of naturally debittered Hurma olives compared to non‐debittered Erkence variety during ripening period

Naturally debittered Hurma olive is grown in a specific area in Karaburun peninsula in Turkey. It is characterised by its sweet taste and it differs from other varieties by losing its bitterness caused by phenolic compounds during its maturation period on the tree. Therefore, Hurma olive does not require any further debittering process to be served as table olive. This study was particularly interested in the comparison of the microbial profile of Hurma olive during its 8 weeks of maturation period in two subsequent harvest years and Erkence (not naturally debittered) olive. In addition, main bacterial profile of both Hurma and Erkence olives were isolated and identified. Aerobic mesophilic microorganism (AMM), lactic acid bacteria (LAB), Enterobacteriaceae, Pseudomonadaceae, Staphylococci, Micrococcaceae, yeasts and moulds (Y&Ms) were detected (counted and isolated) in the olive drupes during the maturation period. Isolated bacteria were identified as different spp. of Bacillaceae, Enterobacteriaceae, Micrococcoceae and Pseudomonadaceae.     

Determination of the botanical origin of honey by Fourier-transformed infrared spectroscopy: an approach for routine analysis

Fourier-transformed infrared spectroscopy has been established for analysing most of the physical–chemical parameters of honey. Additionally this technique can be used for determination of the botanical origin of a honey sample by comparison of the mid-infrared spectra. In this study calibrations for authentification of the main regional honey types should be developed to be able to measure simultaneously physical–chemical properties and the botanical origin at a minimum of time and at low costs. Honey samples from local beekeepers were collected and characterized by standard methods. The most common honey types were used for calibration. We recorded the mid infrared spectrum from each honey sample. Classification models were achieved by PCA-calibration and validated with samples from various botanical origins. Honey of Brassica spp., Robinia pseudoacacia, Calluna vulgaris, Trifolium spp., Tilia spp., Helianthus annuus, Centaurea cyanus and honeydew honey was used for calibration. Afterwards the calibration models were improved during routine analysis. Most of the honey samples from rape, false acacia, heather and honeydew can be classified correctly by the FTIR in consideration of the physical–chemical and sensorial properties.