Results 11 to 20 of about 32,605 (213)

Extraction, Structural Characterization and Biological Activities of Polysaccharides Derived From <i>Hericium erinaceus</i>. [PDF]

Food Sci Nutr
This review summarizes the methods used to extract and purify H. erinaceus polysaccharides (HEP), primarily hot water extraction and column chromatography. Structural characterization indicates that the molecular weights of HEP range from 2.1 to 75,000 kDa, with glucose as the dominant monosaccharide and β‐glycosidic bonds, notably β‐glucans with 1 → 3
Sun N, Li C, Liang W, Wu Z, Han X, Xu S.
europepmc   +2 more sources

Historical Insights Into the Purification of Polyphenol Oxidase From Plants. [PDF]

Food Sci Nutr
Overview of purification methods for polyphenol oxidase. Advancements in achieving partial or homogeneous purification. Key biochemical properties relevant to polyphenol oxidase. ABSTRACT Over the past 50 years, different methods have been developed to purify polyphenol oxidase (PPO), a key enzyme involved in the oxidation of phenolic compounds in ...
Vazquez-Lima CG, Quintana-Quirino M, Bravo AL, López-Simeon R, Nájera H.   +4 more
europepmc   +2 more sources

Tracking Protein Motions using Serial Femtosecond Crystallography with X-Ray Free-Electron Laser. [PDF]

Curr Protoc
Abstract Since the birth of biochemistry, researchers have investigated the structure–function relationship of a wide variety of proteins. However, until recently, when X‐ray free‐electron lasers (XFELs) became available, it was not possible to visualize the motion of proteins from moment to moment with excellent temporal and spatial resolution.
Mizohata E, Nango E, Tosha T, Iwata S, Kubo M.   +4 more
europepmc   +2 more sources

Chitinases from pitcher fluid of Nepenthes distillatoria

Ceylon Journal of Science, 2019
Chitinases belong to a diverse family of enzymes among many other hydrolytic enzymes of the pitcher fluid of Nepenthes sp. There are no existing studies on identification of chitinases in Nepenthes distillatoria the only representative of the genus ...
R. W. K. M. Senevirathna, V. N. Seneviratne, S. Rajapakse   +2 more
doaj   +1 more source

Surface electrical charge of bloodstream trypomastigotes of Trypanosoma cruzi strains

Memorias do Instituto Oswaldo Cruz, 1983
Bloodstream trypomastigotes of some Trypanosoma cruzi strains were processed through DEAE-cellulose columns under standardized conditions. The results obtained suggest mainly that these strains present different surface charges, that there are ...
Maria Auxiliadora de Sousa
doaj   +1 more source

Extraction, isolation and antioxidant activity of the polysaccharides from embryo of the seeds of Nelumbo nucifera Gaertn(莲子心多糖的提取、分离和抗氧化活性研究)

Zhejiang Daxue xuebao. Lixue ban, 2008
干燥的莲子心经机械粉碎、乙醇脱脂、沸水提取、乙醇沉淀及中性酶和Sevag法除蛋白得其粗多糖，经DEAE-Cellulose-32阴离子交换和Sephacryl™ S-200凝胶过滤层析得组份ELPS-Ⅰ和混合物Ⅱ，Ⅱ再经过DEAE-Cellulose-32柱层析得组份ELPS-Ⅱ . GC-MS法测定粗多糖、ELPS-Ⅰ和ELPS-Ⅱ的中性糖组成.凝胶过滤色谱(GPC)法测得ELPS-Ⅰ和ELPS-Ⅱ的重均分子量分别为4.97×104 Da和2.96×106Da.
YUYuan-zhi(俞远志), WUYa-lin(吴亚林), PANYuan-jiang(潘远江)   +2 more
doaj   +1 more source

Isolation of pathogenesis-related proteins from TMV-infected tobacco and their influence on infectivity of TMV

Plant Protection Science, 2005
The composition of pathogenesis-related proteins (PR-proteins) in the intercellular fluid (ICF) and leaf tissue of the hypersensitive tobacco cultivar Xanthi-nc inoculated with Tobacco mosaic virus (TMV), and their inhibitory influence on TMV ...
Milada Šindelářová, Luděk Šindelář   +1 more
doaj   +1 more source

PHYCOERYTHROCYANINS FROM Westiellopsis prolifica AND Nostoc rivulare: CHARACTERIZATION OF THE PHYCOVIOLOBILIN CHROMOPHORE IN BOTH STATES [PDF]

, 1992
Phycoerythrocyanin or fractions enriched in it have been isolated from the filamentous cyanobacteria, Westiellopsis prolifica ARM 365 and Nostoc rivulare ARM 212.
Braslavsky S. E., Bryant D. A., Gantt E., MacColl R., Scheer H., Siebzehnrubl S., Stanier R. Y., Zuber H.   +7 more
core   +1 more source

The derivation of the formyl-group oxygen of chlorophyll b in higher plants from molecular oxygen. [PDF]

, 1994
The mechanism of formation of the formyl group of chlorophyll b has long been obscure but, in this paper, the origin of the 7-formyl-group oxygen of chlorophyll b in higher plants was determined by greening etiolated maize leaves, excised from dark-grown
Abraham R. J., Beale S. I., Bjorkman O., Brown S. B., Chunaev A. S., Ghosh R., Hayaishi O., Henningsen K. W., IUPAC-IUB Joint Commission on Biochemical Nomenclature (JCBN), Klein O., Lane C. F., Leeper F. J., Michalski T. J., Nashrulhaq-Boyce A., Naylor S., Parkes-Loach P. S., Parkes-Loach P. S., Paulsen H., Plumley F. G., Porra R. J., Porra R. J., Porra R. J., Rudiger W., Scheer H., Scheer H., Schneegurt M. A., Walker C. J., Wong Y. S.   +27 more
core   +1 more source

Leaf proteins in five varieties of red clover cultivated in Poland

Acta Agrobotanica, 2015
Protein fractions: albumins, globulins, gluteins and prolamins were extracted from the leaves of 5 varieties of red clover. 'Skrzeszowicka' and 'Hruszowska' showed the highest content of total protein, 'Rotra' however – the highest globulin level ...
W. Maciejewska-Potapczyk, L. Konopska, K. Bytniewska, A. Radziwonowska, H. Zawierucha, H. Michniewicz   +5 more
doaj   +1 more source