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玉米营养保健粥──纯天然营养保健食品玉米营养保健粥,是选用优质黄玉米、黄豆、牛奶等主要原料,经科学配方和特殊技术参数加工配制而成。是一种理想的营养保健食品,尤以中老年食用,婴幼儿代乳最佳。玉米营养保健粥,具有浓郁的鲜玉米香味,富含多种维生素,粗纤维和... 相似文献
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浅谈大豆磷脂的营养保健功效 总被引:1,自引:0,他引:1
本文以大豆磷脂在体内的构成作用,在食品中的营养作用和在新兴制品中的保健功能作用为核心内容,具体反映了食物产品特点,营养水平及生理生化结果,说明了大豆磷脂做为天然的,植物性的营养剂,溶化剂等广泛应用于食物之中,在人类食品组中的营养保健功效。 相似文献
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目的与方法:基于使用与满足理论,通过量化的研究方法,考察新冠疫情期间的营养信息传播下的公众认知、公众态度和公众行为,观察在新冠疫情肆虐下的个人和群体(基于社会和心理根源而生发)的营养信息需求,进而采用不同模式的营养信息传播行为和媒介接触(或其他活动参与),以及如何催发他们对大众媒体或其他来源的营养信息期待。结果:调查显示,受众对该营养健康相关信息具有较高的接触动机,表现了满足心理需要的个人意愿,年龄、受教育程度、性别等因素在营养信息传播使用与满足中起到不同作用。在移动端新媒体成为获取营养信息主要载体的情况下,受众仍对主流媒体传播的营养信息保持较高信任度,但受众对营养信息的时效性、实用性和趣味性均提出了更高的要求。结论:基于调查结果,应从如何保证科学性、关注差异性、增强互动性等维度改善营养信息需求使用与满足现状。 相似文献
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位于印度莫拉达巴德的国际营养学院(会)始建于1986年,其基础是印度营养学院(会)。它有两个职能:一是类似于营养学研究所性质的科学研究和教育的实体,二是类似于营养学会性质的群众性学术团体。学术的专业性质侧重于医学营养学,工作的对象以印度为基点,着眼于第三世界。它通过多年的实地研究后指出,由于第三世界居民原来的饮食等情况的特点,对那些发达国家饮食营养指南的移植要慎重。其研究实体是营养学研究中心,研究重点是心血管疾病和老年营养,现在正在进行欧共体等支持的关于老年人的生活饮食习惯与疾病谱的研究和抗氧化营养素与动脉粥样硬化的研究等,这些研究工作又与国外多个研究机构合作,现已初见成效。国际营养学院(会)每二年组织一次国际性学术会议,今年7月份在加拿大班夫举行第六届世界临床营养会议,主题是抗氧化剂与疾病。 相似文献
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目的:综述当前国内外营养素养及其测评工具的研究进展。方法:以营养素养、营养素养测评工具为主题,在中国知网、万方数据库、PubMed、Web of Science等数据库进行检索,并对检索文献进行归纳总结。结果:目前尚无统一的营养素养定义,虽然研究者对于营养素养的定义有各自不同的见解,但都强调了营养信息的运用能力。营养素养可分为功能性营养素养、互动性营养素养和批判性营养素养三个层面,营养素养与健康素养、食物素养的关系相互补充又有着各自的特点。归纳总结发现对营养素养有影响的因素包括社会人口学因素、营养教育、社会支持。国内外现有营养素养测评工具适用人群有限,缺乏公认的测评工具和评价方法。结论:营养素养研究仍处于发展阶段,国内外相关研究文献有限,其定义、内涵和评价工具仍需进一步的修订完善。 相似文献
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本文通过对交叉营销理论的分析,系统讨论酒店应如何建立客户CRM系统,并根据自己在酒店工作的实际经验,提出了具体操作方法和步骤,同时对酒店应用交叉营销服务的优势进行了总结。 相似文献
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以2,3,7-三羟基-9-(2-羟基-5-对甲苯偶氮)苯基荧光酮为显色剂,测定了野蒜和食蒜中锗的含量,加标回收率在91.04%~102.83%,且该方法灵敏度和选择较高。 相似文献
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探讨了蒸汽喷射压缩器理论设计与实验结果的差异,分析了其原因,为精确设计计算喷射压缩器提供了一定的参考价值。 相似文献
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仿生型信号分子对烟草硝酸盐、亚硝酸盐的抑制作用 总被引:1,自引:1,他引:0
硝酸盐、亚硝酸盐是烟草特有亚硝胺(TSNAs)的前体物。用源于取食烟草的寡食性昆虫口腔分泌物的仿生型信号分子(BSM)物质,在不同浓度下,对烤烟和白肋烟打顶后伤口进行涂抹处理,用比色法检测处理株和对照株烟叶中NO3-,NO2-的含量,并分析BSM对烟草NO3-,NO2-的影响。结果表明:BSM物质对烤烟和白肋烟打顶后叶片中NO3-,NO2-有不同程度的抑制作用;BSM处理对中部叶NO3-和NO2-含量影响大于上部叶、对NO3-的抑制作用强于NO2-;在白肋烟上,BSM对NO3-和NO2-含量的抑制程度与剂量有关,BSM的浓度越高,处理株中NO-和NO-含量越低。 相似文献
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Suzuki T Tran LH Yogo M Idota O Kitamoto N Kawai K Takamizawa K 《Journal of Bioscience and Bioengineering》2005,100(4):472-474
A gene of Aspergillus oryzae, ladA, which encodes L-arabinitol 4-dehydrogenase (EC 1.1.1.12), and its cDNA were cloned in Escherichia coli. The gene consisted of a 1209-bp coding region, interrupted by a 59-bp intron, which encoded a 382-amino-acid polypeptide (40,812 Da). The protein showed 67% identity to a well-studied L-arabinitol 4-dehydrogenase (Lad1) of Hypocrea jecorina. The cell-free extract of E. coli, which expressed ladA cDNA, showed L-arabinitol dehydrogenase activity with NAD+. It was also reactive for ribitol and xylitol. 相似文献
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Tanji Y Shimada T Fukudomi H Miyanaga K Nakai Y Unno H 《Journal of Bioscience and Bioengineering》2005,100(3):280-287
To investigate the therapeutical use of phage mixture for controlling gastrointestinal Escherichia coli O157:H7 cells, in vitro and in vivo experiments were conducted. Three phages, SP15, SP21, and SP22 were selected from 26 phage stock screened from feces of stock animals and sewage influent. Addition of single or binary phage to the E. coli cell batch-culture reduced the turbidity of the culture. However, reascend of the turbidity due to the appearance of phage resistance cell was observed. On the other hand, addition of three phage mixture (SP15-21-22) did not produce reascend of culture turbidity under aerobic condition. Under anaerobic condition, slight reascend of culture turbidity was observed after SP15-21-22 addition. Chemostat continuous culture was operated under anaerobic condition to optimize the titer of phage cocktail and frequency of the addition for controlling E. coli cells. Five-log decrease of E. coli cell concentration after addition of phage cocktail of 10(9) Plaque forming unit (PFU)/ml was observed. However, reascend of cell concentration was observed after 1 d incubation. Repeated addition of phage cocktail was effective to reduce the cell concentration. Suspension of phage cocktail in the buffer containing 0.25% CaCO3 neutralized 9 times much more buffer of pH 2. Based on this in vitro experiment, phage cocktail (SP15-21-22) suspended in the buffer containing 0.25% CaCO3 was orally administrated to the mice in which E. coli O157:H7 cells was administrated in 2-d advance. E. coli and phage concentration in the feces was monitored for 9 d after phage addition. High titer of phage was detected in the feces when the phage cocktail administrated daily. E. coli O157:H7 concentration in the feces has been reduced according to the time period. However, difference of E. coli concentration in the feces of mice administrates with phage and in the control mice without phage addition became slight after 9-d test period. High titer of the phage settled down in the gastrointestinal tracts and reduced the concentration of E. coli cell. Repeated oral administration of SP15-21-22 was effective for rapid evacuation of E. coli O157:H7 from the feces and gastrointestinal tract of mice. 相似文献
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Removal and recovery of lithium using various microorganisms 总被引:2,自引:0,他引:2
Tsuruta T 《Journal of Bioscience and Bioengineering》2005,100(5):562-566
The accumulation of lithium by microorganisms was examined. Among the 70 strains of the 63 species tested (20 bacteria, 18 actinomycetes, 18 fungi, and 14 yeasts), a high lithium accumulating ability was exhibited by strains of the bacteria, Arthrobacter nicotianae and Brevibacterium helovolum. Lithium accumulation by A. nicotianae cells was strongly affected by the pH of the solution. The amount of accumulated lithium was maximum at pH 6. Cells immobilized with polyacrylamide gel also adsorbed lithium. They could be reused during repeated adsorptions, and adsorbed 548 micromol of lithium/g dry wt. cells. The adsorbed lithium was quantitatively and easily desorbed with 1 M hydrochloric acid using a column system. 相似文献
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