نتایج جستجو برای: 4 â polyisoprene

تعداد نتایج: 1310790  

Journal: :international journal of environmental research 0

bacillus sp. sbs25, a gram positive bacteria isolated from soil was found to be effectivein the biodegradation of natural rubber latex. the products of latex biodegradation were separated from the ether extract by thin layer chromatography. gas chromatography and mass spectrometry showed the biodegradation of the major compound into three simpler fractions with low molecular weights. this was f...

2012
Ren Chen Yoko Harada Takeshi Bamba Yoshihisa Nakazawa Koichiro Gyokusen

BACKGROUND Natural rubber produced by plants, known as polyisoprene, is the most widely used isoprenoid polymer. Plant polyisoprenes can be classified into two types; cis-polyisoprene and trans-polyisoprene, depending on the type of polymerization of the isoprene unit. More than 2000 species of higher plants produce latex consisting of cis-polyisoprene. Hevea brasiliensis (rubber tree) produces...

Journal: :Bioscience, biotechnology, and biochemistry 2010
Shinya Takeno Takeshi Bamba Yoshihisa Nakazawa Eiichiro Fukusaki Atsushi Okazawa Akio Kobayashi

Natural polyisoprene is a biopolymer consisting of isoprene units (C(5)H(8)) that is used commercially in household, medical, and industrial materials. For the management of natural polyisoprene production, the selection of high-yield polyisoprene-producing trees, and an understanding of polyisoprene biosynthesis, a high-throughput and highly sensitive screening method for the quantification of...

Journal: :Journal of Polymer Science Part A-1: Polymer Chemistry 1966

2012
Keng-See Chow Mohd.-Noor Mat-Isa Azlina Bahari Ahmad-Kamal Ghazali Halimah Alias Zainorlina Mohd.-Zainuddin Chee-Choong Hoh Kiew-Lian Wan

The cytosolic mevalonate (MVA) pathway in Hevea brasiliensis latex is the conventionally accepted pathway which provides isopentenyl diphosphate (IPP) for cis-polyisoprene (rubber) biosynthesis. However, the plastidic 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway may be an alternative source of IPP since its more recent discovery in plants. Quantitative RT-PCR (qRT-PCR) expression profiles ...

Journal: :The Journal of the Society of Chemical Industry, Japan 1966

2006
P. STURMEY T. LEY

to 0.294)Affective disorders0.0910.040(6)(—0.325 to 0.421)Adjustment disorders0.5230.298(7)(—0.067 to 0.766)Anxiety disorders0.5630.369(7)(—0.069 to 0.577)Inappropriate mental0.4040.304adjustment (7)(—0.3 12 to 0.45 1)Somatoform disorders0.6030.281(6)(0.239 to 0.556)Personality disorders0.5090.3 17(7)(—0.028 to 0.523)Factor 1: affective0.6930.342(14)(—0.273 to 0.613)Factor 2: somato...

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