加强技术创新和行业间合作应对新形势的挑战

我国的造纸工业经历了快速发展的10年,2001-2011年10年间,全国纸及纸板生产量年均增长达到11.99％,消费量年均增长达到10.23％,10年的快速发展使我国成为了世界纸和纸板的生产和消费大国.造纸工业的高速发展得益于我国的改革开放和市场经济的迅猛发展,以及民营大型造纸骨干企业的兴起与发展、外商在华投资建厂及世界顶级的先进造纸装备的大批引进和投产等综合因素的作用,这些因素促进了我国造纸工业的发展及技术水平的大幅提高.     

中国造纸工业2012年产销形势分析

中国造纸协会副理事长兼秘书长赵伟对2012年1—9月我国造纸工业纸和纸板产量及纸浆生产、消费、进出口情况进行了介绍,并对2012年全年生产与消费情况及今明两年国内市场走势进行了预测。     

近年纸张市场走势分析

我国造纸工业概况 造纸工业是国民经济一个重要组成部分,造纸工业的发展状况,可从一个侧面反映一个国家新闻、印刷出版、商品包装及其它工业领域的发展水平,同时反映国民日常工作和生活的质量。随着我国改革开放的深入开展,纸及纸板的生产和消费量与日俱增。近几年来,纸及纸板的产量已达到2000多万吨,仅次于美国和日本,居世界第三位。但从人均消费水平来衡量,只有25公斤,与世界人均消费54.9公     

湖南造纸工业发展所面临的形势与应对措施

1 国际造纸工业的发展概况 1.1 国际造纸工业的生产与消费情况 造纸工业是一个与国民经济发展和社会文明建设息息相关的重要产业,在经济发达国家,纸及纸板消费增长速度与其国内生产总值增长同步,被国际上公认为"永不衰竭"的工业.     

“’2009（第八届）中国造纸化学品开发应用国际技术交流会”通知

2008年是我国改革开放30周年。30年来我国造纸工业发展很快,2007年我国纸和纸板的总产量达到7350万t,消费量达到7290万t,我国纸和纸板的产量和消费量均位居世界第2位。与改革开放初期的1978年相比,30年问我国纸和纸板的产量增长了15．77倍,纸和纸板的总消费量增长了14．91倍,人均年消费量增长了10．83倍,我国造纸工业的产能和消费均处于迅速上升的阶段。     

中国造纸化学品工业协会4月20～22日在杭州召开第四届会员代表大会暨'2010(第十八届)全国造纸化学品开发与造纸新技术应用研讨会('2010全国造纸化学品开发与造纸新技术应用高层论坛)

<正>改革开放30年来,我国造纸工业取得了举世瞩目的进步,中国已成为世界纸和纸板生产、消费与贸易大国,也成为了世界造纸工业发展的主要增长点和关注     

中国造纸化学品工业协会第四届会员代表大会暨'2010(第十八届)全国造纸化学品开发与造纸新技术应用研讨会('2010全国造纸化学品开发与造纸新技术应用高层论坛)论文征集及会议的预通知

<正>改革开放30年来,我国造纸工业取得了举世瞩目的进步,中国已成为世界纸和纸板生产、消费与贸易大国,也成为了世界造纸工业发展的主要增长点和关注焦点。     

中国造纸工业2002年度报告

本文系中国造纸工业2002年度报告，主要介绍了全国纸及纸板产品生产及消费情况；主要生产经济指标完成情况；纸浆生产和消费情况；纸及纸板、纸浆、废纸及纸制品进出口情况；生产布局与集中度和造纸企业产权结构等。     

中国造纸工业2003年度报告

本文系中国造纸工业2003年度报告，主要介绍了全国纸及纸板产品生产情况及消费情况；主要生产经济指标完成情况；纸浆生产和消费情况；纸及纸板、纸浆、废纸及纸制品进出口情况；生产布局与集中度、造纸企业经济类型结构和环境保护等。     

我国积极倡导绿色纸张消费观

根据国家发革委等部门日前发布的《造纸工业发展“十二五”规划》，按照建设节约型社会的要求，我国将积极倡导纸及纸板产品的合理消费，培育“节约用纸、适度消费、循环利用、绿色低碳”的纸张消费观，改变目前过度追求高白度等指标的纸产品消费倾向，以节约资源，减少污染。     

Textural Properties of Cold-set Gels Induced from Heat-denatured Whey Protein Isolates

A 9% whey protein (WP) isolate solution at pH 7.0 was heat-denatured at 80°C for 30 min. Size-exclusion HPLC showed that native WP formed soluble aggregates after heat-treatment. Additions of CaCl2 (10–40 mM), NaCl (50–400 mM) or glucono-delta-lactone (GDL, 0.4–2.0%, w/v) or hydrolysis by a protease from Bacillus licheniformis caused gelation of the denatured solution at 45°C. Textural parameters, hardness, adhesiveness, and cohesiveness of the gels so formed changed markedly with concentration of added salts or pH by added GDL. Maximum gel hardness occurred at 200 mM NaCl or pH 4.7. Increasing CaCl2 concentration continuously increased gel hardness. Generally, GDL-induced gels were harder than salt-induced gels, and much harder than the protease-induced gel.     

Occurrence of bisphenol-F-diglycidyl ether (BFDGE) in fish canned in oil

The levels of bisphenol-F-diglycidyl ether (BFDGE) were quantified as part of a European survey on the migration of residues of epoxy resins into oil from canned fish. The contents of BFDGE in cans, lids and fish collected from all 15 Member States of the European Union and Switzerland were analysed in 382 samples. Cans and lids were separately extracted with acetonitrile. The extraction from fish was carried out with hexane followed by re-extraction with acetonitrile. The analysis was performed by reverse phase HPL C with fluorescence detection. BFDGE could be detected in 12% of the fish, 24% of the cans and 18% of the lids. Only 3% of the fish contained BFDGE in concentrations considerably above 1mg/kg. In addition to the presented data, a comparison was made with the levels of BADGE (bisphenol-A-diglycidyl ether)analysed in the same products in the context of a previous study.     

Contribution of European research to risk analysis

The European Commission's, Quality of Life Research Programme, Key Action 1—Health, Food & Nutrition is mission-oriented and aims, amongst other things, at providing a healthy, safe and high-quality food supply leading to reinforced consumer confidence in the safety of European food. Its objectives also include the enhancing of the competitiveness of the European food supply. Key Action 1 is currently supporting a number of different types of European collaborative projects in the area of risk analysis. The objectives of these projects range from the development and validation of prevention strategies including the reduction of consumers risks; development and validation of new modelling approaches; harmonization of risk assessment principles, methodologies, and terminology; standardization of methods and systems used for the safety evaluation of transgenic food; providing of tools for the evaluation of human viral contamination of shellfish and quality control; new methodologies for assessing the potential of unintended effects of genetically modified (genetically modified) foods; development of a risk assessment model for Cryptosporidium parvum related to the food and water industries; to the development of a communication platform for genetically modified organism, producers, retailers, regulatory authorities and consumer groups to improve safety assessment procedures, risk management strategies and risk communication; development and validation of new methods for safety testing of transgenic food; evaluation of the safety and efficacy of iron supplementation in pregnant women; evaluation of the potential cancer-preventing activity of pro- and pre-biotic ('synbiotic') combinations in human volunteers. An overview of these projects is presented here.     

低温带皮菜籽粕微粉的不同粒级部分的功能特性

为研究低温带皮菜籽粕微粉的不同粒级部分的功能特性,以经低温脱脂的带皮菜籽粕为原料,经微粉碎后筛分成212~425μm、150~212μm和106~150μm的3个不同粒级的微粉样品,检测这些样品的吸水性、吸油性、乳化性和乳化稳定性、蛋白质体外消化率。结果表明:1 3个不同粒级的微粉样品之间的粗纤维含量存在显著差异,表明三者的结构组成成分有一定差异。23个微粉样品的乳化活性和乳化稳定性随粒度级别的减小而显著增加(P0.01)。33个微粉样品的蛋白质体外消化率随粒度级别的减小而显著增加(P0.01)。4不同粒级带皮菜籽粕微粉样品的吸水性与吸油性受其结构组成物质不同和粒度的双重影响,与粒度的相关性不明显。     

Microbiology of food taints

Fresh and processed foods are often spoilt by the presence of undesirable flavours and odours caused by microbial action. The aim of this paper is to review the current knowledge of microbiologically induced taints that occur in a wide range of foodstuffs, including meats, poultry, fish, crustaceans, milk, dairy products, fruits, vegetables, cereals and cereal products. Examples have been chosen where the compounds responsible for the taint have been identified and sufficient data obtained to demonstrate the involvement of microorganisms. However, in some cases the full identity of the causative organism may not have been elucidated. The types of microorganisms covered by this review include bacteria, fungi, yeasts, actinomycetes and cyanobacteria. Although cyanobacteria do not in general infect foods, their presence in aqueous systems and water supplies can lead to off-flavours in aquatic organisms and processed foodstuffs. Several examples of each of these processes are discussed. Wherever possible, the likely biosynthetic pathway used by the microorganism to produce the offending compound in a foodstuff is indicated.     

Analysis for organic residues from aids to polymerization used to make plastics intended for food contact

Polymers intended for food contact use have been analysed for organic residues which could be attributed to a range of substances employed as polymerization aids (e.g. initiators and catalysts). A wide range of polymers was extracted with solvents and the extracts analysed by gas chromatography-mass spectrometry (GC-MS). The overwhelming majority of substances identified were not derived from aids to polymerization but were oligomers, additives and adventitious contaminants. However, a small number of substances were identified as initiator residues. These included tetramethylsuccinonitrile (TMSN) which was observed in two polymers and it derived from recombination of two azobisisobutyronitrile (AIBN) initiator radicals. Methyl benzoate, benzoic acid, biphenyl and phenyl benzoate were detected in one poly(methyl methacrylate) sample and in two polyvinylchlorides and they are thought to be derived from benzoyl peroxide initiator. TMSN was subsequently targeted for analysis of poly-(methyl methacrylate) plastics using proton nuclear magnetic resonance spectrometry (¹     

Tests of potential functional barriers for laminated multilayer food packages. Part II: Medium molecular weight permeants

Experiments were performed to characterize the kinetics of the permeation of different medium molecular weight model permeants: bisphenol A, warfarin and anthracene, from liquid paraffin, through a surrogate potential functional barrier (25 microns-thick orientated polypropylene--OPP) into the food simulants olive oil and 3% (w/v) acetic acid. The characterization of permeation kinetics generally observed the permeation models previously reported to explain the experimental permeation results obtained for a low molecular weight group of model permeants. In general, the model permeants exhibited behaviour consistent with their relative molecular weights with respect to (a) the time taken to attain steady-state permeation into the food simulant in which they were more soluble, (b) their subsequent steady-state permeation rates, and (c) their partition between liquid paraffin and the OPP membrane.     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. I: Interlaboratory studies of methods of analysis

This paper describes the first part of a project undertaken to develop mussel reference materials for Paralytic Shellfish Poisoning (PSP) toxins. Two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin (STX) and decarbamoyl-saxitoxin (dc-STX) in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the second part of the project: the certification exercise. In the first study, 18 laboratories were asked to measure STX and dc-STX in rehydrated lyophilized mussel material and to identify as many other PSP toxins as possible with a method of their choice. In the second interlaboratory study, 15 laboratories were additionally asked to determine quantitatively STX and dc-STX in rehydrated lyophilized mussel and in a saxitoxin-enriched mussel material. The first study revealed that three out of four postcolumn derivatization methods and one pre-column derivatization method sufficed in principle to determine STX and dc-STX. Most participants (13 of 18) obtained acceptable calibration curves and recoveries. Saxitoxin was hardly detected in the rehydrated lyophilized mussels and results obtained for dc-STX yielded a CV of 58% at a mass fraction of 1.86 mg/kg. Most participants (14 out of 18) identified gonyautoxin-5 (GTX-5) in a hydrolysed extract provided. The first study led to provisional criteria for linearity, recovery and separation. The second study revealed that 6 out of 15 laboratories were able to meet these criteria. Results obtained for dc-STX yielded a CV of 19% at a mass fraction of 3.49mg/kg. Results obtained for STX in the saxitoxin-enriched material yielded a CV of 19% at a mass fraction of 0.34mg/kg. Saxitoxin could not be detected in the PSP-positive material. Hydrolysis was useful to confirm the identity of GTX5 and provided indicative information about C1 and C2 toxins in the PSP-positive material. The methods used in the second interlaboratory study showed sufficiently consistent analysis results to undertake a certification exercise to assign certified values for STX and dc-STX in lyophilized mussel.     

The Ministry of Environmental Protection Issued "Feasible Technology Guidelines for Pollution Prevention and Control in Wood Pulping Process of the Paper Industry (Trial)" and Two Other Guiding Technical Documents

On December 27t＂, 2013, the Ministry of Environmenta Protection announced that, in order to implement ＂The Environmental Protection Law of the People＇ s Republic of China＂, improve the working system in environmenta protection technologies, and promote technologica advancement in pollution prevention, the Ministry of Environmental Protection sponsored the formulation of three guiding technical documents including ＂Feasible Technology Guidelines for Pollution Prevention and Contro n Wood Pulping Process of the Paper Industry （Trial）＂     

1~(st) Intelli-Tissue~ EcoEc Tissue Machine Supplied by PMP Group Successfully Put into Operation in China

正On April 29th,2014,Intelli-Tissue EcoEc tissue machine supplied by PMP Group successfully put into operation at Hebei Xuesong Paper Co.,Ltd.,this is the first such kind of paper machine of PMP Group in China.