Abstract
Pacific White Shrimps (Litopenaeus vannamei) are an aquaculture species with global importance. For the purpose of this paper, the quality shelling process of Pacific White Shrimps, freshly harvested from farms and stored in a mixture ice water up to 24 hr, was investigated. Both the differences and correlations between the indexes such as peeling time, shrimp yield, chromatic aberration, texture, K value, TBA value, and microstructure were compared and analyzed. The optimal shell peeling time of Pacific White Shrimps was determined by ice water treatment for 8 hr. The shell peeling time was 1.77 min, the elasticity of the shrimp was 0.51 mm, the hardness was 2,124.58 g, K value was 1.33%, and TBA value was 0.004 mg/100 g. Both the smell and color of the shelled shrimp were normal. This study aims to endorse the mechanical shelling of Pacific White Shrimps.
Highlights
Pacific White Shrimps (Litopenaeus vannamei) are an aquaculture species native to the Pacific coast of Mexico
The time that was required to remove the shrimp shells indicated the degree of difficulty of the shelling process
The results indicated that a decrease in temperature during the processing of Pacific White Shrimps reduced the shelling problem substantially
Summary
Pacific White Shrimps (Litopenaeus vannamei) are an aquaculture species native to the Pacific coast of Mexico. Commonly caught or farmed as an important food source. It is rich in protein, cellulose, mineral elements, vitamins, and a variety of amino acids that are beneficial to the human body (Zhang, Ma, Deng, Xie, and Qiu, 2015). Over the past 20 years, continuous advancement of shrimp farming technology in China and the widespread production of new aquaculture breeds have become more apparent. Following this trend, the shrimp production methods have gradually embraced the notion of aquaculture where these crustaceans are readily cultivated for the public market, rather than being captured solely from the nature habitat. Shrimp farming has developed rapidly, especially in the coastal regions of southern China, due to a suitable climate and abundant water resources and has become a pillar industry in the area (Chen & Kong-Yue, 2012; Cheng & Zeng, 2011)
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