S7iort Cbmmunication

نویسندگان

  • Akio KoBAyAsHi
  • Fumio SuGAwARA
چکیده

The chemical structure of the new unknown glycoside was confirmed as gcran)'t 00-ct-i.-arabinop)'ranosyl-fi-D-g]ucopyranoside (geran)'1 fi-viclanoside) by spectrometric anal)'ses and by an enzymatic hydrolysis-'ithglyeosidasefo)lowedb)'GC-MSandHPLCanslyses. Moreover the vicianoside was hydrel)'zed with acetone powder obtained from fresh tea leaves to ge"erate the same compounds, suggesting this gjycoside to be a tea aroma precursor,

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Cbmmunication Occurrence of Application to 3 - Methylaspartate Ammonia - lyase in Syn esi of 3 - Substituted ( S ) - AsparticFacultative Anaerobes and Their Acids

we soon found that the obligatory anaerobic bacterium C. tetanomorphum is not suitable for our study, because it is not easy to keep under anaerobic conditions even with a few liters of culture broth.Thus, we decidcd to screen for ncw microbial strains that are easy to handle and produce high MAL activity. This report dealg with the first isolation of MALproducing facultative anaerobic strains ...

متن کامل

Cbmmunication Inactiyation of Glutamate Racemase of Pedioeoecus pentosaceus with L - Serine O - Sulfate

peptidoglycan layer of the bacterial cell wall,3) and accordingly can be a target fbr development of new antibiotics. We purified the enzyme from Pediococcus pentosaeeus4) and cloned its gene into Eycherichia colii'2} to construct an overproducer,S) We here report that L-serine O-sulfate, an analog of L-glutamate, serves as a suicide substrate to inactivate the enzyme, This is thc first example

متن کامل

Cbmmunication Gamma - Hemolysin Genes in the Same Family with LukF and inkS Genes in Methici - n

7-hemolysin, consist of two protein component, i.e,, F and S fbr leukocidin and H7I and H7II fbr 7-hemolysin, We have reported the cloning and sequencing of the leukocidin genes lukS and inkF from MRSA No. 4,2'3) In a previous report4) we purified both H7I and Hvll components to hornogeneity from S. aureus, compared their properties with those of the F and S components of leukocidin, and sugges...

متن کامل

Gains from diversification on convex combinations: A majorization and stochastic dominance approach

By incorporating both majorization theory and stochastic dominance theory, this paper presents a general theory and a unifying framework for determining the diversification preferences of risk-averse investors and conditions under which they would unanimously judge a particular asset to be superior. In particular, we develop a theory for comparing the preferences of different convex combination...

متن کامل

Improved immunogenicity of tetanus toxoid by Brucella abortus S19 LPS adjuvant.

BACKGROUND Adjuvants are used to increase the immunogenicity of new generation vaccines, especially those based on recombinant proteins. Despite immunostimulatory properties, the use of bacterial lipopolysaccharide (LPS) as an adjuvant has been hampered due to its toxicity and pyrogenicity. Brucella abortus LPS is less toxic and has no pyrogenic properties compared to LPS from other gram negati...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2018