卷烟纸减害研究进展

卷烟减害降焦已越来越受到消费者关注,卷烟烟辅材料是重要的减害降焦手段。对前人在卷烟纸方面的减害降焦技术研究进展进行综述,以期对后人开展相关研究和工作提供有益借鉴。     

卷烟降焦减害技术研究进展

回顾了近年来国内外卷烟降焦减害技术的科研动态与科研新成果,重点介绍了生物材料、纳米材料、分子筛、低温催化剂以及低危害烟叶调制技术、低侧流烟气技术等在卷烟降焦减害方面的应用研究进展。介绍了新型特殊功能滤嘴、新型滤嘴材料和多种滤嘴及卷烟添加剂在卷烟降焦减害上的应用现状,同时,还简要介绍了近期开发出的可有效降焦减害的几种烟草加工工艺与烟草处理技术。     

卷烟纸减害研究进展

卷烟减害降焦已越来越受到消费者关注,卷烟烟辅材料是重要的减害降焦手段。对前人在卷烟纸方面的减害降焦技术研究进展进行综述,以期对后人开展相关研究和工作提供有益借鉴。     

烟草工业减害研究进展

从叶组配方、加工措施和辅助材料3方面综述了2004年以来国内外烟草工业卷烟减害研究进展,尤其是加工措施方面.认为卷烟减害是一项系统工程,烟草工业应对卷烟减害进行系统深入细致的研究,应强化叶组配方、加工措施和辅助材料方面的减害研究,既要研究对有害成分的影响,同时也要研究对烟气毒理学指标和吸味品质的影响.任何烟丝添加剂减害研究均应包括6个方面:添加剂安全性评价、烟气有害成分分析及添加剂成分分析、有害成分降低、添加剂热解产物分析、烟气感官评价和烟气毒理学评价.     

基于卷烟降焦减害的滤嘴添加剂研究与应用进展

为便于深入研究降焦减害滤嘴添加剂技术,对近年来滤嘴添加剂的研究与应用进展进行了梳理与总结。目前所报道的具有一定降焦减害效果的滤棒添加剂种类较多,按照材料类别分类,主要有碳材料、无机盐多孔材料、催化材料、高分子材料、天然动植物提取物材料等。但是由于成本的限制及对卷烟产品感官质量的影响,只有少数添加剂在中式卷烟中得到了应用。行业仍需深入开展滤嘴添加剂技术的研究,进一步降低应用成本、提高降焦减害效果、减小感官影响,同时进一步加强与调香、工艺等方面技术的集成应用。     

卷烟滤嘴在降焦减害中的研究进展

对滤嘴材料、滤嘴参数设计、滤嘴的结构进行了综述。①阐述了醋酸纤维和聚丙烯纤维改性技术,纸质滤材技术,新型滤材技术的特点和降焦、减害效果。②介绍了滤嘴长度、吸阻以及增塑剂添加量、滤嘴通风率等滤嘴参数对烟气焦油、有害成分释放的影响情况。③对引起越来越多消费者青睐的异型结构滤嘴、复合结构滤嘴,阐明了其技术特点和降焦、减害效果。卷烟滤嘴参数优化设计成为降焦减害普遍采用的技术;高效、环保滤材和特殊结构滤嘴未来将在越来越多的低焦油低有害成分释放卷烟产品上应用。     

卷烟烟气苯酚释放影响因素及其调控技术研究进展

为使相关科研人员了解降低卷烟烟气苯酚释放量对提高卷烟安全性的重要意义,从烟叶原料产地、品种和部位、物理和外观质量、内在和感官质量,生成苯酚的前体物,原料加工工艺,叶组配方,卷烟纸和滤棒等辅助材料以及选择性吸附减害技术等方面进行了全面总结,分析了与烟气苯酚释放量相关的众多影响因素,并着重从烟叶原料生产、苯酚前体物调控、工业配方和减害技术等几个方面总结了选择性降低烟气苯酚释放量的措施和建议,可为降低烟气苯酚释放量和开发低危害卷烟产品提供参考。     

中国烟草科技领域近期要突出抓好的几项工作

1 以降焦减害为科技工作的主线,进一步提高全行业的科技创新能力 对于近期的烟草科技工作,国家局已确定了以降焦减害为主线的工作思路。要以市场为导向,以大力发展中式卷烟和满足卷烟生产需要的优质烟叶为重点,充分认识降焦减害对我国烟草行业未来生存与发展的战略意义,进一步抓好对中式卷烟、降焦减害技术的研究开发与推广工作。 降焦减害是一项系统工程,其内涵涉及到烟草科技的各个方面。当前要紧紧围绕这条主线重点抓好两项工作:一是加强烟草农业方面的科研攻关,着重解决制约我国烟叶质量和可用性进一步提高的关键性技术,加强烟叶的基础地位,确保烟草农业能够为卷烟工业提供优质的烟叶;二是以提高重点企业的核心竞争力为目标,紧紧围绕发展中式卷烟,提高国产卷烟的质     

日本卷烟减害技术研究近况

概述了2000年以后日本在吸烟与健康及卷烟减害技术应用研究方面的进展,主要介绍了日本近年民众卷烟的消费状况,概述了日本环境烟气净化方面的应用研究成果.     

卷烟纸定量、透气度对卷烟包灰及燃烧速度的影响

主要通过从卷烟纸的定量、透气度方面对与香烟降焦减害效果直接相关的卷烟包灰性能及燃烧速度进行的实验,以及对实验结果的分析比较,寻找在无特殊工艺情况下不同定量、不同透气度卷烟纸在卷烟包灰性能及燃烧速度方面的优缺点,并在卷烟纸定量及透气度方面为香烟的降焦减害提供理论依据。     

Review of techniques to manufacture micro-hydrogel particles for the food industry and their applications

Microgels are ‘soft’ microscopic cross-linked polymeric particles that are being increasingly exploited in a variety of industries for rheology control, encapsulation and targeted delivery. They are valued because of the ability to tune their functionality to address specific applications in oil recovery, coatings, drug delivery, cosmetics, personal care and foods. Food microgels are typically biopolymer hydrogels in the form of microspheres, nanospheres (also called nanogels), spheroids and fibres. The utilisation of engineered microgels in foods has so far been limited, despite their great potential to address several needs in the food industry, including: satiety control, encapsulation of phytonutrients and prebiotics, texture control for healthier food formulations (e.g. reduced fat products), and targeting delivery to specific areas in the digestive tract. We review the scientific and patent literature on the utilisation and manufacturing methods for producing microgels with an emphasis on micro-hydrogels for food applications.     

12—A CRITIQUE OF SOME HYPOTHESES RELATING TO THE HETEROGENEITY OF THE HIGH-SULPHUR PROTEINS OF WOOL

Joubert and Burns prepared a large number of fractions from the high-sulphur proteins of wool and estimated their molecular weights and amino-acid compositions. Their data have been re-examined in order to look for statistically significant interrelations between amino acids and between the proportion of various amino acids and molecular weight. Statistical analysis of the data is also used to examine the credibility of some hypotheses concerning the mechanism of keratin biosynthesis and to provide further evidence for the existence of families of proteins within the high-sulphur fractions of wool.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of     

The Latest Data about Development of Chinese Printing Industry in 2013

In the 2014 China（Shanghai）International Printing Week,Director Wang Yanbin released the latest data about development of Chinese printing industry in 2013.According to statistics,in 2013,the total output value of Chinese printing industry exceeded 1trillion Yuan for the first time,reaching 1.03985 trillion Yuan.There were 105,000 printing enterprises in China,employees were 3.415 million.The total asset was 1.06247 trillion Yuan;     

The State Council Issued "Directory of Government Approved Investment Projects(2013 Edition)"

正On December 2nd,2013,the State Council issued the notification of"Directory of Government Approved Investment Projects(2013 Edition)"(hereafter referred to as"notification").It is pointed out in the"notification"that in order to further deepen reforms in investment systems and administrative examination and approval systems,simplify administrative procedures and delegate powers to lower levels,earnestly     

China textile machinery: taking off in progress

正Among the 1600 exhibitors who take apart in the ITMA ASIA+CITME2014 2/3 are Chinese manufactures.If the numerous figures failed to attract your attention,the increase of quality should draw your focus.To adopt the demand of developing textile machine market,domestic textile machinery enterprises now follow the slogan of"technology drives development"to enhance product competitiveness.Our domestic sellers will showcase product ranging from spinning,weaving,dyeing and printing,     

Top Ten News of China's Paper Industry 2013

On December 24th, 2013, the meeting on the selection of top 10 news of China＇s paper industry 2013 sponsored by 〈China Paper Newsletters〉 was held in Beijing. The yearly selection of the top l0 news, which began in 2000, has become a brand activity widely recognized in the industry thanks to the support from the authorities at all levels and public participation.     

National Development and Reform Commission Issued Announcement for Selection of Major Preliminary Research Projects for the "13~(th) Five-Year Plan"

In Apri Commi major p Plan＂ （h 2014, the National Development and Reform ssion issued an announcement for selection of reliminary research projects for the ＂13th Five-Year ereafter referred to as ＂The Announcement＂）     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the latest scientific     

Contamination of animal feed and food from animal origin with mineral oil hydrocarbons

Oils and fats used for the production of animal feed can become contaminated with mineral oil material originating from gas oils (C₁₈-C₃₅) or synthetic oils (poly alpha olefins, C₂₅ to beyond C₄₅). An important cause is assumed to be the discharge of waste oils, such as motor oil and hydraulic oils. Mineral oil material was analysed by on-line LC-GC-FID directly in the fat or in a raw extract from animal feed or foodstuffs. In Switzerland in summer/autumn 1999 concentrations in oils and fats for feed production were often found to be between 100 and 1000mg/kg. In the feeds, the average concentration was around 100mg/kg with values ranging up to a maximum of 1000mg/kg; few samples were free of contamination. In animal body fat, the average concentration determined in summer 1999 was 25mg/kg, with a maximum of 150mg/kg, although in samples from December 1999, contamination was substantially lower. In the fat phase of eggs, the average concentration was 30mg/kg, with a maximum of 80mg/kg. Paraffin oil is used for feed production, which may account for part of the contamination problem (e.g. eggs).