. Saiful
Syiah Kuala University

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Lysozyme separation by MP500 mixed matrix membrane . Saiful
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 1 (2014): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.844 KB)

Abstract

Rapid developments in biotechnology increase the demand to separate biomolecules using mild process conditions. The separation of lysozyme by mixed matrix membrane adsorbers was studied. MP500, a strong anion exchange resin is incorporated as adsorbent into an EVAL polymeric matrix. The membranes in this study are prepared by immersion precipitation out of a DMSO solution containing 14% EVAL. All membranes contain 65% resin based on dry solids. The morphology of the membranes are characterized using scanning electron microscopy. Dynamic adsorption capacities of lysozyme onto mixed matrix membrane adsorbers are measured. The dynamic lysozyme adsorption capacity at 10% break through is determined as 43 mg lysozyme/g membrane.
Preparation and characterization edible film packaging from carrageenan . Saiful; Siti Saleha; . Salman
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 3 (2013): Addendum
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.382 KB)

Abstract

Preparation of edible film from carrageenan has been studied in this research.  The edible films were made by phase inversion method with various carrageenan concentrations of 1 %, 1.25 %, 1.5 %, and 1.75 % (b/v) and palm oil as plasticizer with variation concentration of 10%, 20% and 30% (v/v). The edible films were characterized for thickness, tensile strength, elongation, oxygen permeability, water absorption capacity, and solubility. The edible film has been applied for slice apple packaging. The optimize edible films structure were obtained with the carrageenan and palm oil compositions of 1.25% and 10% respectively. The characteristics of the edible films have thickness of 0.23 mm, tensile strength of 102.50 kgf/mm2, elongation of 7.04%, oxygen permeability of 7.646 x 10-19 cm3.cm/cm2.s.cmHg. The color brightness test showed significantly different colors at the confidence level of 99.9% and the edible film can prevent 30.7% of weight losses. Edible film can maintain  vitamin C of  99,853%.