02122nas a2200181   4500008004100000022001400041245013100055210006900186260011000255300001400365490000600379520135800385100001901743700002001762700002001782700001701802856012101819       2014                        eng d  a2050-752600aSupramolecular P4VP-pentadecylphenol naphthatenebisimide comb-polymer: mesoscopic organization and charge transport properties0 aSupramolecular P4VPpentadecylphenol naphthatenebisimide combpoly  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAUG  a6511-65190 v23 a<p>A supramolecular comb polymer of pentadecyl phenol (PDP) substituted naphthalenebisimide (PDP-UNBI) with poly(4-vinylpyridine) (P4VP) is reported. The mesoscopic organization within the P4VP(PDP-UNBI), complexes was studied using wide-angle X-ray diffraction (WXRD) technicjues. The packing diagram obtained from the single-crystal XRD analysis of the PDP-UNBI crystals gave a clear picture of the initial arrangement present in self-associated PDP-UNBI alone. Correlating this with the XRD data of the hydrogen-bonded polymer complex provided insight into the probable packing of the P4VP chains within the crystalline lattice of PDP-UNBI leading to a highly ordered lamellar packing. Transmission electron microscopy (TEM) revealed the uniform mesomorphic lamellar structures in the domain range of similar to 5-10 nm. Furthermore, the charge carrier mobility measurements observed from space-charge-limited current (SCLC) measurements demonstrated that transport behaviour of the hydrogen-bonded P4VP(PDP-UNBI) complex (2 x 10(-2) cm(2) V-1 s(-1)) was comparable to that of the crystalline naphthalenebisimide molecule itself (9 x 10(-3) cm(2) V-1 s(-1)), which is a great achievement, since the complex now offers a package of solution-processable n-type semiconductor polymer with mobility equivalent to that of a small crystalline molecule.</p>1 aNarayan, Rekha1 aKumar, Prashant1 aNarayan, K., S.1 aAsha, S., K.  uhttp://library.ncl.res.in/content/supramolecular-p4vp-pentadecylphenol-naphthatenebisimide-comb-polymer-mesoscopic-002669nas a2200361   4500008004100000022001400041245023500055210007000290260000800360300001000368490000800378520138500386653002601771653002601797653001501823653002501838653001501863653001501878100001701893700001701910700002401927700002001951700001801971700001801989700002702007700003102034700003002065700002002095700001802115700001602133700002502149856013302174       2024                        eng d  a0168-165600aSustainable bioprocess technology for producing food-flavour (+)-γ-decalactone from castor oil-derived ricinoleic acid using enzymatic activity of Candida parapsilosis: Scale-up optimization and purification using novel composite0 aSustainable bioprocess technology for producing foodflavour γdec  cSEP  a17-300 v3933 a<p>
	Ricinoleic acid (RA) from castor oil was employed in biotransformation of peach-flavoured gamma-decalactone (GDL), using a Candida parapsilosis strain (MTCC13027) which was isolated from waste of pineapple crown base. Using four variables-pH, cell density, amount of RA, and temperature-the biotransformation parameters were optimized using RSM and BBD. Under optimized conditions (pH 6, 10 % of microbial cells, 10 g/L RA at 28 degrees C), the conversion was maximum and resulted to 80 % (+)-GDL (4.4 g/L/120 h) yield in shake flask (500 mL). Furthermore, optimization was achieved by adjusting the aeration and agitation parameters in a 3 L bioreactor, which were then replicated in a 10 L bioreactor to accurately determine the amount of (+)-GDL. In bioreactor condition, 4.7 g/L (&gt;85 %) of (+)-GDL is produced with 20 % and 40 % dissolved oxygen (1.0 vvm) at 150 rpm in 72 h and 66 h, respectively. Further, a new Al-Mg-Ca-Si composite column-chromatography method is developed to purify enantiospecific (+)-GDL (99.9 %). This (+)-GDL is 100 % nature-identical as validated through 14C-radio-carbon dating. Thorough chemical investigation of enantiospecific (+)-GDL is authenticated for its use as flavour. This bioflavour has been developed through a cost-effective biotechnological process in response to the demand from the food industry on commercial scale.</p>
10a(+)-gamma-Decalactone10aAl-Mg-Ca-Si composite10aBioflavour10aCandida parapsilosis10acastor oil10aFood-waste1 aSyed, Naziya1 aSingh, Suman1 aChaturvedi, Shivani1 aKumar, Prashant1 aKumar, Deepak1 aJain, Abhinav1 aSharma, Praveen, Kumar1 aNannaware, Ashween, Deepak1 aChanotiya, Chandan, Singh1 aBhambure, Rahul1 aKumar, Pankaj1 aKalra, Alok1 aRout, Prasant, Kumar  uhttp://library.ncl.res.in/content/sustainable-bioprocess-technology-producing-food-flavour-%CE%B3-decalactone-castor-oil-derived