کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1986850 | 1540254 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Statistical optimization of pullulan production from Asian palm kernel and evaluation of its properties
ترجمه فارسی عنوان
بهینه سازی آماری تولید پیلولان از هسته نخل آسیایی و ارزیابی خواص آن
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
پلولان، هسته کف نخل آسیا، روش سطح پاسخ،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
چکیده انگلیسی
Pullulan, a biodegradable exopolysaccharide, was produced from Asian Palmyra palm kernel by solid-state fermentation. Levels of medium variables, namely carbon to nitrogen ratio (C/N), pH, NaCl concentration and ZnSO4·5H2O concentration were optimized to maximize pullulan production using Box-Behnken design of experiments. Optimal values were predicted as: C/N ratio - 28.1, pH - 6.6, NaCl - 0.78 g/l and ZnSO4·5H2O - 0.37 g/l. Theoretical pullulan yield predicted under optimum condition was 30.4 mg/gds. Pullulan was produced under optimum condition and an experimental yield of 28.7 ± 0.3 mg/gds was obtained. 13C NMR spectra of the exopolysaccharide produced from Asian palm kernel revealed the presence of anomeric α (1â6) linked maltosyl units. The weight-average molecular weight of the polymer was determined to be 8.4 Ã 106 Da by gel permeation chromatography. Thermal decomposition temperature of pullulan was obtained to be 245 °C. The tensile strength of pullulan film (0.5 mm thick) was found to be 27 MPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 66, May 2014, Pages 229-235
Journal: International Journal of Biological Macromolecules - Volume 66, May 2014, Pages 229-235
نویسندگان
K.R. Sugumaran, P. Shobana, P. Mohan Balaji, V. Ponnusami, D. Gowdhaman,