亚临界流体萃取法对绵羊皮肤脱脂的研究

IF 0.6 4区工程技术 Q4 CHEMISTRY, APPLIED

Journal of The American Leather Chemists Association Pub Date : 2021-02-01 DOI:10.34314/jalca.v116i2.4234

Qiaoping Xia, Meina Zhang, Bo Mao, H. Dai, Zongcai Zhang

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引用次数: 0

摘要

脱脂是皮革和毛皮生产的重要工序之一。本研究旨在开发一种亚临界正戊烷脱脂方法。本研究选用羊皮作为生皮。通过单因素试验和响应面法，确定了脱脂参数的最佳组合。通过组织学分析进一步评价温度和压力对脱脂效率的影响。结果表明，最佳脱脂参数为:脱脂时间58 min，压力0.45 MPa，温度41.0℃，理论脱脂率为52.46%，实验脱脂率为51.46%。组织学切片显示，亚临界正戊烷的脱脂作用非常显著，毛囊周围的脂滴明显减少。实验证明，亚临界正戊烷脱脂是一种有效的绵羊皮脱脂技术。

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Study on the Degreasing of Sheep Skin Using Subcritical Fluid Extraction

Degreasing is one of the important processes for the production of leather and fur. This study aimed to develop a degreasing method using subcritical n-pentane. Sheep skin was chosen as raw skin for this investigation. The best possible combination of degreasing parameters was found using single factor experiment and response surface methodology. The effects of temperature and pressure on the degreasing efficiency were evaluated further with histological analysis. The results showed that the optimum degreasing parameters were a degreasing time of 58 min, pressure of 0.45 MPa, temperature of 41.0°C and thus yielded a degreasing rate of 52.46％ theoretically and 51.46% experimentally. Histological sections showed that the degreasing effect of subcritical n-pentane was quite significant and the lipid droplets around the hair follicles were dramatically reduced. It has been proven that subcritical n-pentane degreasing is an effective technique for sheep skin degreasing.

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来源期刊

Journal of The American Leather Chemists Association 工程技术-材料科学：纺织

CiteScore

1.30

自引率

33.30%

发文量

审稿时长

3 months

期刊介绍： The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.