冷活性微生物纤维素酶:了解其作用机理及其在食品饮料工业中的应用的新途径

G. Yunus, M. Kuddus
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引用次数: 1

摘要

纤维素是一种主要存在于植物细胞壁中的碳水化合物,是地球上含量最丰富的生物聚合物。纤维素的生物降解是由一组被称为纤维素酶的酶进行的。这些酶在食品加工和食品工业中发挥着重要作用。在当今时代,冷活性酶被首选,而不是中温和亲热酶,因为它们的最佳活性所需的能量更少,而且容易失活。本研究通过分子对接的方法,比较了嗜盐假异单胞菌的冷活性纤维素酶与嗜中温和嗜热纤维素酶的工业应用价值。冷活性纤维素酶与底物纤维素的结合能为-126.60 kcal /mol。而热、中温纤维素酶的能量分别为-93.29 kcal /mol和-75.54 kcal /mol。研究结果表明,冷活性纤维素酶在食品加工工业中具有较好的应用价值。
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COLD-ACTIVE MICROBIAL CELLULASE: NOVEL APPROACH TO UNDERSTAND MECHANISM AND ITS APPLICATIONS IN FOOD AND BEVERAGES INDUSTRY
Cellulose, a carbohydrate mainly found in plant cell walls, is most abundant biopolymer on the Earth. Biodegradation of cellulose is carried out by a group of enzymes knows as cellulases. These enzymes play important roles in food processing and used in food industry. In the present era, cold-active enzymes are preferred instead of meso- and thermos-philic counterparts due to less energy requirement for their optimal activity and easy inactivation. The present study includes evaluation of cold-active cellulase from Pseudoalteromonas haloplanktis for its industrial applications in comparison to mesophilic and thermophilic cellulases, through molecular docking method. The binding energy of cold-active cellulase with the substrate cellulose was -126.60 KCals/mole. However, the energy for thermo- and mesophilic cellulase found to be -93.29 and -75.54 KCals/mole, respectively. The results concluded that cold-active cellulase has more efficacy compared to its counterparts and may be used in food processing industry at commercial level.
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