异麦芽低聚糖面包的研制

通过探讨添加异麦芽低聚糖对面粉粉质、面包焙烤品质以及面包贮存过程中老化程度的影响,以期制作高质量的异麦芽低聚糖面包。试验结果表明,异麦芽低聚糖可改善面团的流变特性,面粉吸水率下降,面团的形成时间、稳定时间延长,面团弹性增加,但面团的延伸性在添加量0%~20%时逐渐增大,超过20%时有所减弱,添加异麦芽低聚糖可有效降低失水率,改善面包的硬度,延长其货架期。在本试验条件下,异麦芽低聚糖的添加量以不超过20%为宜。     

荞麦大豆面包的研制

荞麦富含黄酮类化合物、活性蛋白质等成分,大豆不仅蛋白质含量高,而且是全价的,其中的大豆异黄酮、大豆低聚糖等更具特殊功效。以荞麦粉、大豆粉、面包改良剂为主要添加成分,研制荞麦大豆面包,通过正交试验,确定了三者的最佳添加量,即荞麦粉、大豆粉、面包改良剂分别占面粉重的10%、6%、0·8%。     

大豆低聚糖在馒头中的应用

采用单因素试验设计研究国产大豆低聚糖在馒头中的应用，得出大豆低聚糖在馒头中使用时，能使馒头的货架期延长1d，加入量为3%～5%之间，具有保健意义。     

大豆低聚糖在冰淇淋中的应用研究

采用单因素及正交试验设计研究国产大豆低聚糖在冰淇淋中的应用。得出在冰淇淋中大豆低聚糖的添加量在低于4.0%时,不影响冰淇淋的口感和质量,并具有保健意义,大豆低聚糖保留量达到94.7%。     

添加剂对面包品质的影响及抗老化作用的研究

试验研究了大豆浓缩磷脂、粉末磷脂、单硬脂酸甘油酯及单双硬脂酸甘油酯对面包品质及抗老化效果的影响。结果发现,在添加量为0.2%~1.0%时,4种添加剂对改善面包的感官品质、比容和质构(硬度、黏聚性和咀嚼性)均有一定效果。其中大豆粉末磷脂对面包品质影响最大,当添加0.8%的大豆粉末磷脂时,面包品质最好,抗面包老化效果最明显。试验的研究结果对面包品质的改良、延长面包存贮期具有一定的实际意义。     

大豆低聚糖在酸奶中的应用

采用单因素试验设计研究国产大豆低聚糖在酸奶中的应用 ,得出在酸奶中大豆低聚糖的添加量在2 %～2 5 %之间时 ,不影响酸奶的质量 ,并具有保健意义 ,酸奶在保藏七天时大豆低聚糖损失率仅为9 8%     

模拟移动色谱连续分离大豆低聚糖技术研究

以预处理后的大豆乳清废液为原料,采用模拟移动色谱分离系统对大豆低聚糖进行纯化。以大豆低聚糖纯度和回收率为指标,对进料量、进料流速、解吸流速、循环量流速等技术参数进行优化,结果表明,在进料量15%,进样流速5 m L/min,切换时间720 s,解吸流速10 m L/min,循环量流速13 m L/min条件下,获得的大豆低聚糖纯度为89%,收率在89%以上。     

大豆低聚糖在乳酸菌饮料中的应用研究

采用单因素及正交试验设计研究国产大豆低聚糖在乳酸菌饮料中的应用,得出在乳酸菌饮料中大豆低聚糖的添加量在低于4.0%时,不影响乳酸菌饮料的口感和质量,并具有保健意义,大豆低聚糖损失率低于10.0%。乳酸菌饮料最佳配方为,果汁4.0%、发酵脱脂乳6.0%、蔗糖12.0%、柠檬酸0.20%、大豆低聚糖4.0%、稳定剂(PGA∶CMC=1∶1)0.30%、L-Vc0.05%、香料0.10%、色素适量、水73.35%。     

大豆分离蛋白对面包品质影响的研究

通过面包的焙烤试验和质地分析,研究了添加大豆分离蛋白对面包品质的影响。结果表明:在本试验条件下,添加2%的大豆分离蛋白既能提高面包的营养价值,又能提高面包的保水能力,延长面包的货架期,改善面包的质地结构。     

大豆低聚糖对大米粉老化性质的影响及其机理研究

为了更好的在大米粉中使用功能性低聚糖(大豆低聚糖),本实验研究了大豆低聚糖对大米粉老化性质的影响,并研究其作用机理。添加大豆低聚糖可以改善大米凝胶的质构特性。碘结合实验表明大豆低聚糖可以降低大米凝胶的结晶度,延缓凝胶老化。而傅里叶红外光谱证明了大豆低聚糖延缓大米凝胶老化是通过与淀粉链形成分子间氢键从而阻止淀粉链的相互靠近、降低结晶度。因此,大豆低聚糖可用于抑制大米类食品的老化、延长货架期。     

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.     

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     

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     

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,