PEMANFAATAN LIMBAH KULIT SPLIT INDUSTRI PENYAMAKAN KULIT UNTUK GLUE DENGAN HIDROLISIS KOLAGEN

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Journal Article

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Teknologi, Volume 2, Number 2 (2009)

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split leather, glue, collagen

Abstract:

The skin is the remainder of the split leather tanning industry. In one ton of raw skins of fresh skin that has been preserved are split skin as much as 115 kg. A certain percentage of the raw skin is only a small part was used, for example for making krecek. To better utilize the necessary research was the use of waste split leather tannery industry for glue of collagen hidrolysis by using a chlorida acid (HCl) catalyst.
The process of hydrolysis in this experiment using HCl catalyst which run in three neck flask with stirrer mercury. Then with a certain temperature-split skin is heated until it becomes thick and the solution filtered filtratnya. After the filtrate is evaporated in the oven until a constant weight in the form of glue.
From the experiments have been conducted on the variables reaction time and the ratio between the weight of substances reacting to the volume of water, with 10% HCl atalyst as much as 5 mL, stirring speed of 500 rpm and temperature 80 ± 2oC obtained under optimum conditions at
the time of 2 hours, the ratio of matter 30 g/200 mL of reagents with the glue as much as 8.9 grams and the yield of 29.67%.

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