首乌保健啤酒的研制

以大麦芽、白首乌、啤酒花为原料经啤酒酵母发酵酿制出首乌保健啤酒.并对首乌汁的糖化条件、添加方式、添加量及发酵温度进行了探讨.试验结果表明,首乌汁最佳糖化条件为糖化温度65.2℃、糖化酶添加量142.2U/g、糖化时间74.3min.首乌汁在主发酵结束时添加,添加量为3%、发酵温度为12℃.首乌啤酒兼具啤酒和首乌的风味及营养特点.     

绿色啤酒的研制

介绍了绿色啤酒的小试，中试和试生产过程，研究绿以啤酒的糖化工艺，妆和螺旋藻的添加方法等。绿色啤酒泡沫洁白细腻，持久持杯，口感协调清爽，是一种良好的保健饮品。     

保健食品螺旋藻与啤酒酿造

螺旋藻含有丰富的蛋白质、叶绿素、γ-亚麻酸、β-胡萝卜素和维生素，并富含锌、铁、钾、钙、镁、硒、碘、磷等微量元素及矿物质和人体必需的8种氨基酸。螺旋藻对人体生理和免疫具有重要的保健作用。在啤酒生产中，螺旋藻的加入方式有煮沸时添加、麦汁冷却过程加入、在清酒中加入。螺旋藻的添加量为：酵母啤酒的添加量为0．4％～0．5％；过滤啤酒的添加量为0．2％～0．3％。(孙悟)     

绿色啤酒的研制

介绍了绿色啤酒的小试、中试和试生产过程，研究绿色啤酒的糖化工艺，姜和螺旋藻的添加方法等。绿色啤酒泡沫洁白细腻，持久挂杯，口感协调清爽，是一种良好的保健饮品。     

金桔香橙风味小麦精酿啤酒的工艺研究

金桔不但具有丰富的营养,还具有很强的保健功能。以小麦艾尔啤酒的酿造工艺为基础,采用添加鲜金桔汁、鲜香橙汁的方式,研究金桔香橙小麦精酿啤酒的发酵工艺。试验结果可知,最佳的糖化工艺是分步糖化工艺,第一步糖化:温度45℃、时间60min;第二步糖化:温度67℃,时间60min。金桔香橙小麦精酿啤酒在发酵过程中,最佳的发酵工艺为:金桔汁的添加量为5%、香橙汁的添加量为10%,主发酵10天后进行二次发酵,二次发酵时间为10天,获得一种具有金桔香橙风味的小麦精酿啤酒。     

螺旋藻啤酒生产工艺的研究

本文以大麦芽为主要原料，螺旋藻提取液为添加荆，研究优化螺旋藻啤酒的生产工艺，感官评定最佳工艺得到的酒体为优。     

生产工艺对高辅料啤酒非生物稳定性的影响

探索了糖化方法、糖化温度、麦汁煮沸时间、麦汁pH值和PVPP添加量等生产工艺对高辅料啤酒非生物稳定性的影响.结果表明:最佳的糖化工艺条件是:采用一次煮出糖化法,糖化温度70℃,麦汁pH值为5.2～5.4,麦汁煮沸90min～100min.在啤酒中添加150mg/L的PVPP,可以明显降低啤酒中的多酚物质,提高高辅料啤酒的非生物稳定性.     

红枣啤酒发酵工艺研究

红枣不但具有丰富的营养,还具有很强的保健功能。采用红枣和大麦芽为原料研究保健型红枣啤酒的发酵工艺。试验结果可知:红枣在制备红枣原汁时,需要进行糖化。最佳的糖化工艺:糖化温度65℃、糖化酶的添加量为90 U/g、糖化时间120 min。红枣啤酒在发酵过程中,最佳的发酵工艺为:红枣原汁添加量为12%,主发酵时添加。     

红枣啤酒发酵工艺研究初探

红枣不但具有丰富的营养,还具有很好的保健功能。采用红枣和大麦芽为原料研究保健型红枣啤酒的发酵工艺。试验结果可知：红枣在制备红枣原汁时,需要进行糖化。最佳的糖化工艺：糖化温度65℃、糖化酶的添加量为90U／g、糖化时间120min=红枣啤酒发酵过程中,最佳的发酵工艺为：红枣原汁添加量为12％,在主发酵时添加,     

保健型红枣啤酒发酵工艺研究

红枣不但具有丰富的营养,还具有很强的保健功能。采用红枣和大麦芽为原料研究保健型红枣啤酒的发酵工艺。试验结果可知:红枣在制备红枣原汁时,需要进行糖化。最佳的糖化工艺:糖化温度65℃、糖化酶的添加量为90U/g、糖化时间120min。红枣啤酒在发酵过程中,最佳的发酵工艺为:红枣原汁添加量为12%,主发酵时添加,发酵时间为12d。     

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.     

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%.     

Preparatory Work of Print China 2015 is Going Smoothly

正Held at Guangdong Modern International Exhibition Center,Print China 2015 will cover 7exhibition halls,besides the original Hall No.3,4,5,6,7,the newly built F zone of Hall 3 will be used too.The total area will be140,000 square meters.Hall 3:Offset and large printing equipment,package printing equipment,post press