Storage Stability of Fish Waste Peptone at Ambient Temperature

Q3 Environmental Science
A. Poernomo, F. Ariyani, M. Murdinah
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引用次数: 0

Abstract

Peptones from fish waste has been widely studied, however information about its shelf life is stilllimited. This study aims to test the storability of dried peptone from tuna and shrimp waste produced through hydrolysis using alcalase enzyme. Peptone powders were packed in HDPE plastic bottles and plastic coated aluminum foil, stored at room temperature, and periodically observed in quality (moisture content, aw, color and appearance). A test was also performed on their ability to support the growth of Staphylococcus aureusbacteria; all were compared to commercial peptone (Difco). Shrimp waste peptone had the highest moisture, ash calcium contents, while tuna peptone has the highest fat content. During five month storage at ambient temperature, all peptones experienced a slight decrease in quality. Aluminum foil performed better than HDPE bottles as a packaging material for peptones, i.e., able to maintain the moisture content, water activity, and appearance. Although the ability to support bacterial growth after five months of storage was slightly affected, the tested peptones were still able to beused as bacterial growing media. It can be concluded that fish waste peptones had comparable quality and shelf-life atambient temperature to commercial peptone.
鱼废蛋白胨在常温下的贮存稳定性
鱼类粪便中的蛋白胨已被广泛研究,但有关其保质期的信息仍然有限。本研究的目的是测试用alcalase酶水解金枪鱼和虾的排泄物所产生的干蛋白胨的可储存性。蛋白胨粉末包装在HDPE塑料瓶和塑料包覆铝箔中,室温保存,定期观察质量(含水量,aw,颜色和外观)。还对它们支持金黄色葡萄球菌生长的能力进行了测试;与商业蛋白胨(Difco)进行比较。虾渣蛋白胨水分、灰分、钙含量最高,金枪鱼蛋白胨脂肪含量最高。在环境温度下储存5个月,所有蛋白胨的质量都略有下降。铝箔作为蛋白胨的包装材料比HDPE瓶表现更好,即,能够保持水分含量,水活性和外观。虽然在储存5个月后支持细菌生长的能力受到轻微影响,但测试的蛋白胨仍然可以用作细菌生长的培养基。由此可见,鱼废蛋白胨与商品蛋白胨在常温下具有相当的质量和保质期。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.40
自引率
0.00%
发文量
10
审稿时长
16 weeks
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