第二届全国大宗淡水鱼加工技术与产业发展研讨会

一、会议背景在第一届全国大宗淡水鱼加工技术与产业发展研讨会的基础上,近两年来我国淡水鱼加工产业正在逐步发展,为了进一步引领和指导大宗淡水类加工企业将水产加工技术应用于大宗淡水鱼的加工中,促进我国大宗淡水类加工食业的快速发展,推进我国大宗淡水鱼类产业的壮大,加强产学研的结合,加强技术交流和推广,由国     

淡水鱼加工副产物功能成分的提取与应用研究进展

淡水鱼由于其营养价值丰富,在世界范围内的需求量持续增加。然而,在其加工过程中产生大量副产物,这些副产物并没有得到充分的利用,造成资源的浪费并给生态环境带来了巨大的压力,不利于淡水渔业的持续健康发展。鉴于此,淡水鱼加工副产物依据其特性逐步被开发应用。本文对近年来淡水鱼副产物的加工利用及其各类活性研究进行综述。首先介绍加工副产物中常见功能性成分的提取技术与开发,其次分别阐述淡水鱼加工副产物的应用研究,如抗氧化、抗炎、延缓衰老以及在食品加工和储存中的应用,最后对淡水鱼加工副产物未来的发展趋势进行展望,旨在为淡水鱼加工副产物有效成分提取及应用提供参考,进一步提升资源的综合利用潜力,促进我国淡水鱼产业的高质量发展。     

淡水鱼加工技术研究进展

主要介绍近年来淡水鱼加工技术的发展.结合近年来淡水鱼加工领域国内外一些研究成果,以淡水鱼冷冻加工技术、腌熏加工技术以及蛋白饲料加工技术为重点,对淡水鱼加工技术的研究进展进行较为全面的综述.     

淡水鱼产销形势与效益分析

分析了2015年淡水鱼的养殖效益,考察了市场低迷的情况下淡水鱼销售和加工形势,并对淡水鱼产业发展提出建议。据调研组2015年12月赴四川、湖北的调研情况反映:大宗淡水鱼价格达到2013—2015年来最低水平,养殖效益整体不佳,如将家庭用工折算在内,大宗淡水鱼养殖户基本亏损;一些地区批发市场成交量出现下滑,加工企业萎缩、经营举步维艰。为此,本文提出以下政策建议:养殖户应把握上市时机,做好品种搭配;企业适应青年消费者习惯,优化加工品的结构;政府应鼓励发展生态养殖模式,加大对中小企业扶持;科研人员要善于总结养殖过程的关键点,形成简单易记、适合普通养殖户的技术操作规程。     

优质水产品质量安全控制体系建设

水产品质量安全关系着人们的健康和产业兴衰。本文从淡水鱼产品质量安全现状出发,分析水产品质量存在的问题,并在此基础上从通威优质淡水鱼养殖、淡水产品加工、冷藏销售采取的一系列技术手段及淡水产品安全检验检疫等环节的质量安全控制体系建设进行阐述,提出了确保水产品质量安全的建议供参考。     

淡水鱼虾方便食品工业化生产关键技术创新与应用

正我国淡水产品资源丰富,2012年产量达2 874.33万t,占水产品总产量的48.65%。由于缺乏淡水产品适用加工技术,淡水产品加工产业发展滞后,加工比例低(16.84%)、深加工产品少,严重制约了我国淡水渔业全产业链的形成和可持续发展。在水产加工技术中,现有海水鱼加工技术不能解决淡水鱼虾水分含量高、个体差异大、骨刺多、腥味重的加工难题;而我国一些传统加工技术还不能满足现代食品工业化加工的需要以及人们对食品方便、营养、美味、安全的消费需求,这就对我国淡水鱼虾的加工关键技术提出了迫切需求。江南大学夏文水教     

湖南省2011年柑橘加工业监测分析与预警

2011年湖南省柑橘产业稳定发展,柑橘深加工企业增加,加工规模扩大,产业发展总体呈良好发展态势。     

淡水鱼鱼糜制品加工特性及品质影响因素

淡水鱼鱼糜作为市场上大多数鱼糜制品的制作原料,其质量与品质决定着市场上鱼糜制品的好坏。为了更好地实现淡水鱼鱼糜制品的加工,要对其加工特性与质量影响因素进行探讨和研究,为消费者提供更为优质的淡水鱼鱼糜产品。本文针对淡水鱼鱼糜制品的加工进行研究,简述了淡水鱼鱼糜及其制品的种类和形成机理,介绍了影响淡水鱼鱼糜制品特性的主要因素,并说明了淡水鱼鱼糜的加工方式与设备使用,研究了淡水鱼鱼糜的脱腥方法,以期提升我国淡水鱼鱼糜制品的加工水平。     

湖南省生物基材料产业绿色发展及对策研究

湖南拥有丰富的楠竹和芦苇等非木资源,制浆造纸产业具有一定规模,文化纸、包装纸、卫生纸、绝缘纸板、化学木浆、溶解木浆等产品具有一定品牌优势,可以在助力湖南省“双碳”目标达成,促进湖南省循环经济和实现浆纸产业高质量发展方面起到示范作用。文章对湖南省资源、市场、技术等要素进行了分析,指出做强做大湖南省非木纤维材料产业的出路在于绿色制造与高值化利用,并提出了相关政策支持建议,为“双碳”目标下湖南省生物基材料产业的健康发展提供了决策参考。     

“中国柑桔加工技术与产业发展论坛”在湘召开

由科技部中国农村技术开发中心、湖南省科学技术厅和湖南省永州市人民政府联合主办的“中国柑桔加工技术与产业发展论坛”，于2005年11月26—27日在永州市隆重召开。本次会议由湖南省柑桔工程技术研究中心、湖南省食品科学技术学会、湖南熙可食品有限公司、湖南省农业科学院、湖南省农产品加工研究所承办，中南大学、长沙理工大学、湖南农业大学、中南林学院及永州市科技局、等协办。     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

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

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Detection of adulteration of locust bean gum with guar gum by capillary electrophoresis and polarized light microscopy

Capillary electrophoresis (CE) and polarized light microscopy (PLM) were utilized in the detection of the adulteration of locust bean gum with guar gum. For CE analyses, standards of locust bean and guar gums were extracted with 30% CH₃CN, removing the residual proteins from the gum matrix. A 8.75 mM NaH₂PO₄-20.6 mM Na₂B₄O₇ buffer, pH 9, was used to separate these proteins and to identify marker proteins that were present in the guar gum. These markers did not co-migrate with components in the extracts of mechanically processed locust bean gum, and are used as indicators of adulteration. Using PLM with toluidine blue and iodine staining techniques, unadulterated locust bean gum samples were distinguished from mixed samples through the differential staining of components in locust bean versus guar and tara gums. These experiments in the use of CE and PLM provide orthogonal and complementary methods for the verification of 'true' positives and the elimination of 'false' positives.     

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     

Chinese CTP Market

According to Printing and Printing Equipment Industries Association of China（PEIAC）＇s statistics to the plate manufucturer in China, in 2013, the actual offset plate production has reached 346 million square meters in China. Among them, the CTP production volume was 245 million square meters, up by 11% than that of last year; the total sales of the CTP plate was 239 million square meters, up by 13%.