甜菜新品种“吉甜207”的选育

吉甜２０７是以普通二倍体有性杂交后代单株系７３２－３和７２２－２互为父母本杂交育成。该品种经１９８５￣１９８６连续二年所内小区试验，１９８７￣１９９０三年省内区域试验和二年生产示范表明具有含糖高、抗病性强、适应性广等优点，平均根产量超对照０￣１９．５％，含糖率高０．５￣１．４度，产糖量提高６．５￣３３．５％，属于高糖型普通二倍体甜菜杂交新品种。     

甜菜单粒型杂交种吉农单202的选育

甜菜品种吉农单202是利用单粒型二倍体雄性不育系与多粒型二倍体恢复系杂交育成的二倍体单粒种。根据吉林省区域试验结果：根产量比对照品种HYB－13提高5．9％，含糖率提高0．32度，产糖量提高8．04％。生产试验结果：根产量提高6．4％，含糖率提高0．79度，产糖量提高11．9％。     

德国糖用甜菜SD12830引种研究报告

SD12830是从以二倍体单粒雄性不育系Nx12＊P6为母本,二倍体多粒授粉系＊U23为父本．按母、父本3：1比例配制杂交育成。经两年在甘肃省各甜菜原料产区试验表明：SD12830与对照品种相比．平均块根产量增加21．0％,平均含糖率比对照品种提高0．72度,平均产糖量比对照品种增加26．2％：生产试验结果表明：平均块根产量比当地品种增产22．0％,平均含糖率比当地对照品种提高0．44度,平均产糖量比当地对照品种增加26．0％;该品种块根产量高,含糖稳定,糖汁纯度高,工艺品质好,抗甜菜丛根病、褐斑病、黄化毒病能力强,达到甘肃省甜菜新品种标准。     

甜菜新品种——吉甜209的选育

甜菜新品种吉甜209以多粒雄性不育系为母本,以二倍体品系为父本,采取5：1配比杂交育成。该品种经1996－1999年省内甜菜品种区域试验,1998－1999年生产试验,表现为适应性广,抗病能力强,块根产量高、产糖量高等优点。区域试验结果：块根产量比吉甜201（对照品种）增产18．45％,含糖低0．36度,产糖量比吉甜201提高15．84％。吉甜209属于丰产型雄性不育二倍体杂交品种,2001年通过吉林省农作物品种审定委员会审定并命。     

甜菜新品种中甜——吉甜208的选育

中甜－吉甜208系二倍体多粒型甜菜雄性不育杂交品种。其亲本选用吉75－27不育系为母本,以本所育成的JT2－7503－36528为父本,母：父本以5：1配比杂交制种。该品种经1993、1995年在范家屯设置小区试验;1996－1998年参加第五届国家甜菜品种区域试验;1999年进行了生产试验。该品种适应性广,抗病性强,生产力高。区域试验结果表明;根产量比当地主要推广品种（对照）增产19．7％,含糖率提高0．69度,产糖量增加25．1％,生产试验结果表明：根产量比对照增产18．2％,含糖率比对照提高0．65度,产糖量比对照提高23．5％。该品种属于丰产兼标准型品种。     

甜菜新品种中甜-吉甜单粒3号的选育

中甜——吉甜单粒3号是以本所培育的二倍体单粒雄性不育系7587-22A1为母本，多粒二倍体品系SC-203为父本杂交而成。该品种1999～2001年参加全国甜菜品种区域试验，根产量、含糖率、产糖量分别比CK1(多粒种对照)提高22．3％、低0．17度、提高22．2％；与CK2(单粒种对照)比提高2．8％、1．14度、11．1％。中甜一吉甜单粒3号2002年参加东北区、华北区生产试验，4个点次根产量、含糖率、产糖量与CK1比提高15．5％、低0．05度、提高15．3％，与CK2比提高1．9％、高1．35度、提高11．4％，中甜一吉甜单粒3号属于高产型二倍体单粒雄性不育杂交种。     

甜菜新品种中甜─吉洮单一的选育

甜菜新品种中甜─吉洮单一由洮育单粒二倍体品系85─724与多粒二倍体品系A2－1046杂交育成，属标准偏高糖单粒型新品种，其双亲配合力高，杂种优势强。该品种在吉林省甜菜品种区域试验及生产试验中，其根产量、含糖率和产糖量比单粒对照品种吉甜单一提高5．9％～12．2％，1．9～1．1度，19．2％～19．6％；比偏高糖多粒对照品种范育一号提高1．83％～39．0％，（─0．6）～（─0．7）度，13．6％～34．0％。在黑龙江、山西、宁夏、新疆等五省异地鉴定中根产量、含糖率、产糖量分别比当地多粒对照品种提高4.3％～43．4％，（─0.3）～1．3度，115％～48．1％。该品种高抗褐斑病，多点调查结果是，其褐斑病发病级数比省内对照品种低一级左右，比省外多粒生产种低0．3～1．4级，比国外抗病生产种低0．3级，比国外感病生产种低2．7级。     

低聚果糖的生产与应用

甜菜二倍体新品种中甜－包育202,是在系统选育的同时,利用了生理选种的相关知识育成的普通二倍体杂交种。该品种较褐斑病和黄化毒病,在1996－1998年的轻工全国甜菜品种区域试验中,其块根产量,含糖率和产糖量比对照分别高19．67％,1．61度和36．93％;在1999年的生产试验中,分别比对照提高9．3％,1．01度和16．3％。     

3个甜菜测交组合试验结果分析

吉99—4、吉99—6、吉99—13三个组合是1999年配制的雄性不育多倍体杂交种或普通多倍体杂交种。经2000。2001年品比试验，产量分别比对照（甜研304）提高30．4％、23．5％、27．1％，含糖率分别比对照提高0．225度、0．435度、0．925度，产糖量分别比对照提高28．4％、26．9％、32．3％。两年产糖量结果均达到显著或极显著水平。     

甜菜新品种吉甜205的选育

甜菜新品种吉甜２０５是由ＳＢ－１０２、ＳＣ－２０３两个自交系杂交而成的二倍体品种。该品种块根产量较高，含糖性状稳定，抗（耐）褐斑病能力强。在吉林省区域试验表现块根产量、含糖率、产糖量分别比对照品种范育一号提高１０．２％，０．５度、１３．５％，在吉林省生产示范块根产量、含糖率、产糖量分别比范育一号提高２８．５％、０．５度、３７．４％。是一个抗褐斑病能力较强、标准偏丰产型甜菜新品种。     

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.     

Chlorohydrins of bisphenol A diglycidyl ether (BADGE) and of bisphenol F diglycidyl ether (BFDGE) in canned foods and ready-to-drink coffees from the Japanese market

BADGE.2HCl and BFDGE.2HCl were determined in 28 samples of ready-to-drink canned coffee and 18 samples of canned vegetables (10 corn, 5 tomatoes and 3 others), all from the Japanese market. HPLC was used as the principal analytical method and GCMS for confirmation of relevant LC fractions. BADGE.2HCl was found to be present in one canned coffee and five samples of corn, BFDGE.2HCl in four samples of canned tomatoes and in one canned corn. No sample was found which exceeded the 1mg/kg limit of the EU for the BADGE chlorohydrins. However the highest concentration was found for the sum of BFDGE.2HCl and BFDGE.HCl.H₂O at a level of 1.5mg/kg. A Beilstein test confirmed that all cans containing foods contaminated with BADGE.2HCl or BFDGE.2HCl had at lest one part coated with a PVC organosol.     

European priorities for research to support legislation in the area of food contact materials and articles

A strong science base is required to underpin the planning and decision-making process involved in determining future European community legislation on materials and articles in contact with food. Significant progress has been made in the past 5 years in European funded work in this area, with many developments contributing to a much better understanding of the migration process, and better and simpler approaches to food control. In this paper this progress is reviewed against previously identified work-areas (identified in 1994) and conclusions are reached about future requirements for R&D to support legislation on food contact materials and articles over the next 5 or so years.     

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.     

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