Worldwide, marine crustacean waste is a major problem for environmental pollution, and it is a severe risk to the coastline area. Shellfish wastes consist of some commercially valuable products, mainly the chitin. The extraction of chitin from the shellfish waste is very complicated and required a successive pretreatment process. Sonication can improve the process of extraction of chitin from the shrimp shell waste. In this study, the conventional and ultrasonication method of pretreatment was applied and compared for the extraction of chitin. By the conventional method, 12 h was required for the removal of calcium and proteins each. In contrast, only 6 h was required for the complete removal of calcium and proteins each, by the ultrasonication assisted method. After pretreatment, the results were analyzed and compared by the already purified commercial chitin using Fourier-transform infrared spectroscopy. Ultrasonication improves the rate of reaction of the pretreatment by the process of cavitation. By this work, the ultrasonication technique was proved to be much faster than the conventional method for the pretreatment process.

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超声波模式从海洋虾壳废料中提取甲壳质的过程

在世界范围内，海洋甲壳类废弃物是造成环境污染的主要问题，并且对海岸线地区构成严重威胁。贝类废物包括一些商业上有价值的产品，主要是几丁质。从贝类废物中提取几丁质非常复杂，需要连续的预处理过程。超声处理可改善从虾壳废料中提取几丁质的过程。在这项研究中，采用常规和超声预处理方法对甲壳素的提取进行了比较。按照常规方法，去除钙和蛋白质各需要12小时。相反，通过超声辅助方法完全去除钙和蛋白质仅需要6小时。经过预处理 使用傅里叶变换红外光谱法对已经纯化的商业甲壳质进行分析和比较。超声处理通过空化过程提高了预处理的反应速率。通过这项工作，超声波处理技术被证明比预处理方法要快得多。