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海参肽生物学功能研究进展 总被引:2,自引:0,他引:2
生物活性肽是指参与机体生命活动的、具有生物活性的肽类分子,其对人类健康的影响已成为研究热点,并由此开发出各种不同生理功能的活性肽。近年来,海参作为一种营养与药用价值极高的海洋棘皮动物,从中提取的活性肽--海参肽的生物学功能逐渐引起人们的重视。但大多研究仅停留海参肽的提取工艺上,有关其功能和应用方面的研究很少。本文以国内外相关报道为基础,对海参肽的生物学功能研究进展进行综述,为进一步研究海参肽对人体健康的影响及机制提供参考。 相似文献
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海参是上等的补品良药,作为功能性食品受到人们的喜爱。近些年,随着保健品行业的迅速发展,以海参为主要原料的保健品也越来越多,同时,对其药用价值及保健功能的研究也更加深入。海参含有多种重要的化学成分,主要包括海参多糖、海参皂苷、海参胶原蛋白、海参多肽及脂类物质等,这些活性成分具有抗肿瘤、抗氧化、免疫调节、抗菌、抗病毒、降血糖及抗凝血等生物活性,可用于预防及辅助治疗某些疾病。本文综述了海参中重要的化学成分及其生物活性的研究进展,为海参功能性食品的研发提供参考。 相似文献
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辣木叶作为药食两用资源,含有丰富的蛋白、多糖、维生素和矿物质等营养成分和黄酮、多酚等活性化学成分,成为食品、饲料和医药等行业近年来研究的热点。辣木叶具有降血糖、抗氧化、抗癌、抑菌等多种生理功能,但以辣木叶为有效成分的保健食品多处在研究阶段,其药用价值也待进一步深入挖掘。本文对辣木叶的营养成分组成、生理活性功能和实际应用情况进行了综述,并对未来在食品和医药等领域的发展进行展望,以期为更科学认识和深入研究辣木叶提供理论依据,为综合利用辣木叶提供有效参考。 相似文献
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海藻主要活性物质及其生物功能研究进展 总被引:3,自引:0,他引:3
海藻是一类品种极其丰富的海洋植物,是海洋生物资源的重要组成部分。近年来,随着人们对海洋生物资源研究的逐渐深入,海藻中的生物活性物质及其生物学功能越来越受到人们的重视,成为国内外研究的热点。海藻中富含多糖类、多酚类、萜类、蛋白质、氨基酸、多不饱和脂肪酸等活性物质,为海藻提供了多种的生物学功能,如抗氧化活性、抗菌活性、调节免疫活性、抗肿瘤活性、抗凝血活性、降低血脂活性、降血糖活性等。为了更好地利用海藻生物资源,为海藻资源在食品、医药等领域有更广阔的利用空间,本文就海藻的主要生物活性物质及其生物学功能的研究进展进行综述,详细阐述了海藻主要活性物质的组成、生物学功能及其作用机制,为海洋资源的进一步开发研究提供参考。 相似文献
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海参中多糖含量丰富,占海参干质量6%以上,具有抗肿瘤、抗凝血、抗氧化及抗帕金森病等多种生物学活性,在保健食品和药品开发方面具有广阔的应用前景。海参多糖的结构特性如分子质量、硫酸化模式及硫酸基含量等对其生物学活性具有很大影响,因此研究海参多糖结构对揭示其生物学活性及作用机制具有重要意义。本文在介绍海参多糖结构特性的基础上,重点综述其生物学活性及作用机制,同时总结海参多糖结构对其生物学活性的影响,最后对海参多糖的发展前景进行展望,以期为海参多糖的精深加工和应用提供理论支持。 相似文献
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海参因含有多糖、海参肽、海参皂苷、脑苷脂、神经节苷脂等多种生物活性物质,具有提高免疫活性、抗氧化、抗衰老、降血脂、降血糖、改善认知、抗疲劳、抗肿瘤、抗癌、抗真菌等功能,成为广大研究者的研究热点之一,其相关产品和功能也不断地被开发和利用,但对海参中可能残留的有毒有害物质及其检测方法研究较少。本文综合现有的国家或行业标准以及研究报道,就海参中非法添加物、污染物(包括重金属、多氯联苯和多环芳烃)、兽药残留和农药残留的检测方法进行概述和讨论,旨在为海参及其相关产品提供质量安全检测参考。 相似文献
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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. 相似文献
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John Gilbert Catherine Simoneau David Cote Achim Boenke 《Food Additives & Contaminants》2000,17(10):889-893
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. 相似文献
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Sophie Guillot Laurence Peytavi Sylvie Bureau Renaud Boulanger Jean-Paul Lepoutre Jean Crouzet Sabine Schorr-Galindo 《Food chemistry》2006
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. 相似文献
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Jesus Simal-Gandara Miguel Sarria-Vidal Arjen Koorevaar Rinus Rijk 《Food Additives & Contaminants》2000,17(8):703-711
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. 相似文献
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M. S. Garcí a-Falc n J. Simal-G ndara S. T. Carril-Gonz lez-Barros 《Food Additives & Contaminants》2000,17(12):957-964
A simple, rapid and inexpensive method has been developed for the determination of benzo[a 相似文献
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H. J. Van Den Top A. Boenke P. A. Burdaspal J. Bustos H. P. Van Egmond T. Legarda A. Mesego A. Mourino W. E. Paulsch C. Salgado 《Food Additives & Contaminants》2001,18(9):810-824
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. 相似文献
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《肉类研究》2014,(2)
<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 相似文献
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《印刷工业》2014,(11):95-95
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%. 相似文献
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《印刷工业》2014,(8):103-103
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 相似文献