improvement in immobilization of bread yeasts by sol-gel method combined with functionalized nanoporous silica (lus-1)
نویسندگان
چکیده
in this work, the effect of immobilization of bread yeast (saccharomyces cerevisiae) by sol-gel technique combined with functionalized nanoporous silica was investigated in different weight ratios of silica containing materials (tmos: lus-1). the activities of immobilized yeast in days after immobilization were examined. the results showed immobilization maintain the yeast life for a longer time. the functionalization by c18 functional group improved the environmental conditions for yeast life. these results indicate that the immobilization technique in the gel matrix and porous solid is a good system to develop industrial fermentations.
منابع مشابه
Improvement in Immobilization of Bread Yeasts by Sol-gel Method Combined with Functionalized Nanoporous Silica (LUS-1)
In this work, the effect of immobilization of bread yeast (Saccharomyces cerevisiae) by sol-gel technique combined with functionalized nanoporous silica was investigated in different weight ratios of silica containing materials (TMOS: LUS-1). The activities of immobilized yeast in days after immobilization were examined. The results showed immobilization maintain the yeast life for a longer tim...
متن کاملImprovement in Immobilization of Bread Yeasts by Sol-gel Method Combined with Functionalized Nanoporous Silica (LUS-1)
In this work, the effect of immobilization of bread yeast (Saccharomyces cerevisiae) by sol-gel technique combined with functionalized nanoporous silica was investigated in different weight ratios of silica containing materials (TMOS: LUS-1). The activities of immobilized yeast in days after immobilization were examined. The results showed immobilization maintain the yeast life for a longer tim...
متن کاملEthylenediamine Functionalized Nanoporous Silica Type LUS-1 for Highly Sensitive Analysis of Pb2+ , Cd2+ and Zn2+ in Various Samples
In this work, a novel method is described for the preconcentration of Pb2+, Cd2+ and Zn2+ ions in environmental samples using uniform silanized mesopor (LUS-1) functionalized by ethylenediamine groups as a new extractant. The determination of ions is done by inductively coupled plasma optical emission spectrometry (ICP-OES). The extraction time and efficiency, p...
متن کاملPreparation of Silica by Sol-Gel Method Using Formamide
In this work we obtained microporous and mesoporous silica gels by sol-gel processing. Tetraethylortosilicate (TEOS) was used as precursor. Nitric acid and hydrofluoric acid were used as catalysts. In order to study the affect of formamide as drying additive, we used a molar ratio alkoxide/formamide of 1/1. The performance of formamide in obtaining crack-free gels was evaluated through monolith...
متن کاملDirect Oxidation of Benzene to Phenol in Liquid Phase over Nanoporous Silica of Chromium-LUS-1
(Received: May 18, 2012; Accepted in Revised Form: February 4, 2013) Abstract: Direct oxidation of benzene to phenol in liquid phase in the medium of methanol, acetone, acetic acid and acetonitrile as a solvent over chromium catalyst supported on highly ordered nanoporous silica (Cr-LUS-1) by H O were examined. The best results obtained from methanol solvent with 20% yield and selectivity of 90...
متن کاملethylenediamine functionalized nanoporous silica type lus-1 for highly sensitive analysis of pb2+ , cd2+ and zn2+ in various samples
in this work, a novel method is described for the preconcentration of pb2+, cd2+ and zn2+ ions in environmental samples using uniform silanized mesopor (lus-1) functionalized by ethylenediamine groups as a new extractant. the determination of ions is done by inductively coupled plasma optical emission spectrometry (icp-oes). the extraction time and efficiency, ph and amount of adsorbent, minimu...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
international journal of bio-inorganic hybrid nanomaterialsجلد ۲، شماره ۴، صفحات ۴۷۱-۴۷۶
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023