Polyaspartic Acid in Oyster Shells as Absorbent

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Our study is entitled “The Feasibility of Aspartic Acid found in Oyster Shells as an additive ingredient in improving the absorbency of commercialized sanitary napkins.” The objective of the study was to extract a protein from the oyster shells to produce aspartic acid which can replace the manufactured polymer found in commercialized sanitary napkins.

The significance of our study is that the product is an alternative in producing polymers. It is also environmental friendly; biodegradable and is easy and affordable to produce.

The researchers produced the aspartic acid in a few simple steps. The oysters were submerged in a 10% Hydrochloric Acid Solution overnight then washed in running water (for neutralizing) the next day. They were then heated in an oven with a temperature of 110 Celsius and pounded until they reached a powdered form. After checking the presence of aspartic acid, a series of tests were performed to determine the efficiency of our powdered aspartic acid.

The researchers observed that if the amount of the aspartic acid was increased, the weight of the sanitary napkin and the amount of liquid absorbed also increased. The scale was directly proportional. As for the rate of absorbency, the results varied from 35 seconds to 50 seconds.

The study proved to be effective and can be improved to advance the production of polymers used in sanitary napkins. It can also benefit our country because it lessens waste, helps prevent Global Warming and is very affordable. No more energy or time spent on manufacturing industrialized polymers will be wasted.
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