黑莓、蓝莓咀嚼片的研制

以黑莓、蓝莓冻干果粉为原料,采用湿法制粒的方法研制黑莓咀嚼片和蓝莓咀嚼片。对产品的制造工艺进行初步研究,确定黑莓咀嚼片的最优配方为黑莓冻干果粉50%、甘露醇45.5%、苹果酸0.5%、微粉硅胶2%、硬脂酸镁2%;蓝莓咀嚼片的配方为蓝莓冻干果粉50%、甘露醇44%、苹果酸2%、微粉硅胶2%、硬脂酸镁2%。所制咀嚼片色泽艳丽、酸甜适中、口感细腻、清凉爽口、花色苷和多酚含量丰富。     

菊粉复合咀嚼片的制备及通便活性研究

便秘作为一种常见的胃肠道问题,严重影响了人民的健康。该研究以富含低聚果糖的菊粉、魔芋粉和香蕉粉为主要功效成分,采用湿法制粒压片工艺,筛选研制成菊粉复合咀嚼片,并考察其通便活性。结果表明,最佳原辅料组成为50%菊粉、10%魔芋粉、5%香蕉粉、10%维生素C钠、19%乳糖、2.5%微粉硅胶（内加1%）、1.5%阿司帕坦、含10%聚维酮K30的95%乙醇溶液,30倍活性配方用量对便秘模型具有良好的通便效果,最终获得有一定功效、口感怡人、服用方便、制备简单的菊粉复合咀嚼片。     

辅料对乳酸菌发酵苹果肉渣膳食纤维咀嚼片感官品质的影响

以苹果肉渣、羊乳为主要原料,接种嗜热链球菌和保加利亚乳杆菌进行发酵,发酵后的苹果肉渣经干燥粉碎后过筛,制成苹果肉渣膳食纤维基料。原辅料经混合、造粒、干燥、压片等工序加工后,制成苹果肉渣膳食纤维咀嚼片。通过单因实验和正交实验确定了咀嚼片的最佳辅料处方为甘露醇∶木糖醇为3∶2,柠檬酸用量为1.0%,PVP-k30用量为5.0%,硬脂酸镁用量为1.5%,在此条件下感官评分达到48.54。     

无花果功能咀嚼片的制备工艺研究

以无花果为主要原料,采用亚临界水技术,一次性提取无花果中的大量多糖、黄酮,和少量补骨脂素、佛手柑内酯,采用粉末直接压片技术,选取片质量差异、崩解时限、硬度、脆碎度的综合评定值为评价指标,通过响应面法确定无花果咀嚼片最佳配方。结果表明,无花果咀嚼片的最佳配方为:无花果多糖及黄酮用量60%、无花果粉末用量20%、木糖醇用量5%、玉米糊精用量3%及其他辅料用量12%。制成的咀嚼片表面光滑、色泽均一、硬度适中;研究通过辅助强制加料配合直接压片技术,对无花果咀嚼片的配方工艺进行研究,旨在为产品的功能营养价值提供一定理论支持。     

胡萝卜番茄面包的研制

以胡萝卜和番茄酱为原料,胡萝卜经过适当处理制得高品质胡萝卜汁,将胡萝卜汁和番茄酱在面包生产中加入,通过试验探讨了合适的蔬菜面包产品配方、生产工艺,得出它的最佳配方为胡萝卜汁添加量12%,番茄酱添加量3%,白砂糖用量12%,酵母用量1.4%,水用量45%,开发出营养全面、色泽诱人的胡萝卜番茄面包。     

蓝莓皮渣营养咀嚼片的研制

蓝莓皮渣作为蓝莓加工过程中的副产物,富含着花色苷等多种生物活性成分。试验以此为原料,采用湿法制粒的方法,通过单因素试验、正交试验和感官评定等探讨了蓝莓皮渣咀嚼片的最佳工艺及配方,并对其储存稳定性进行了初步分析。通过试验得到蓝莓皮渣咀嚼片的最佳配方为:果粉26%、微晶纤维素23%、麦芽糊精17.5%、低聚果糖6%、白砂糖15%、木糖醇4.5%、柠檬酸4%、硬脂酸镁1%、蓝莓果汁3%;制得的咀嚼片不易碎裂、口感细腻、甜度适宜爽口。蓝莓皮渣咀嚼片的研制不仅解决了加工过程中副产物的问题,解决废弃物环境污染问题,还丰富了蓝莓产品市场的多元化。     

胡萝卜膳食纤维制取及脱色工艺的研究

研究了以胡萝卜渣为原料,通过酶解、脱色得到质量较好的膳食纤维的最佳提取和脱色工艺条件。结果表明:榨汁后的胡萝卜渣,在p H为5.0,反应温度为55℃,蛋白酶的加入量为0.6%的条件下作用2 h以除去蛋白;在p H为6.0,反应温度为60℃,淀粉酶加入量0.8%的条件下作用2 h以除去淀粉;选用双氧水作脱色剂,其中脱色温度45℃,双氧水加入量为5%,p H为9~10,脱色时间2 h。最后真空干燥即得胡萝卜膳食纤维为浅白色粉末,含量为83.25%(干基)。该试验提取的胡萝卜膳食纤维的持水力6.4 g/g,膨胀力6.9 m L/g。     

川明参咀嚼片配方与制备工艺研究

研究川明参咀嚼片的配方和工艺。以多指标感官评定为依据,采用单因素试验考察各填充剂用量,采用正交试验优化配方,筛选川明参咀嚼片最佳配方。结果表明川明参咀嚼片的最佳配方为:山梨醇25%,乳糖5%,柠檬酸0.5%(酸味剂),糊精10%,微晶纤维素28.5%,硬脂酸镁1.0%(润滑剂),川明参浸膏30%。该配方工艺简便,实用性强,所制得的川明参咀嚼片酸甜适宜,且入口顺滑细腻,咀嚼性强。     

混料设计在葛根天麻咀嚼片配方研究中的应用

以葛根天麻为原料,通过单因素试验考察葛根天麻、填充剂、甜味剂等添加量对咀嚼片的感观指标的影响,并在此基础上采用D-最优混料设计试验对葛根天麻咀嚼片配方进行优选,得到葛根天麻咀嚼片的最佳处方为:葛根天麻粉32%、麦芽糖醇20%、甘露醇30%、微晶纤维素16%,硬酯酸镁1.2%,柠檬酸0.8%,得出综合评分为71.21±0.31,与预测值相符,在此配方下所得产品外观均匀,硬度适中,口感细腻,整体风味良好。     

黑果枸杞中原花青素的提取及其咀嚼片的研制

研究高速剪切提取技术辅助提取黑果枸杞中原花青素的工艺及其咀嚼片的配方制备工艺。通过单因素和正交试验,分别考察提取次数、料液比、乙醇体积分数、剪切提取时间及剪切速率对黑果枸杞原花青素提取率的影响,分别考察黑果枸杞提取物用量、微晶纤维素用量、木糖醇用量、苹果酸用量对咀嚼片口感和制备工艺的影响。结果表明,高速剪切法提取原花青素最佳条件为:料液比1︰8 (g/mL)、乙醇体积分数45%、剪切时间15 min,剪切速率19 000 r/min,提取1次。黑果枸杞原花青素咀嚼片最佳配方为:黑果枸杞原花青提取物40%、微晶纤维素15%、糊精20%、木糖醇10%、甘露醇10%、苹果酸2.5%。所制备的黑果枸杞原花青素咀嚼片表面光滑,色泽均匀一致,酸甜可口,入口柔顺,硬度和脆度适中,符合消费者的口感。     

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.     

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.     

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.     

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.