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标题：PEMURNIAN MINYAK GORENG BEKAS MENGGUNAKAN ADSORBEN BIJI ALPUKAT TERAKTIVASI
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作者：Fitriani Fitriani
期刊名称：Jurnal Pendidikan Matematika dan IPA
印刷版ISSN：2086-0234
出版年度：2018
卷号：9
期号：2
页码：65-75
DOI：10.26418/jpmipa.v9i2.26770
出版社：Universitas Tanjungpura Pontianak
摘要：Abstract This research had been conducted in the use of avocado seed powder (Persea americana Mill) as an adsorbent to reduce peroxide and free fatty acids of the used cooking oil. The aim of this research was to determine the best activator of avocado seed powder as an adsorbent to reduce peroxide and free fatty acids of the used cooking oil. This research used the variation of activators, consist of hydrochloric acid (HCl), citric acid (C 6 H 8 O 7 ), sodium chloride (NaCl) and sodium hydrogen phosphate (Na 2 HPO 4 ) solutions. The result showed that the best activator of avocado seed powder by HCl which gave the highest free fatty acid reduction was 0,26%. Meanwhile, the best activator of avocado seed powder by C 6 H 8 O 7 which gave the highest peroxide value reduction was 1,8 Meq/Kg . These results had qualified as the maximum limits of SNI cooking oil were 0.3% for the concentration of free fatty acids and 2 Meg/kg for the peroxide value of cooking oil.
关键词：adsorbent; avocado seed powder; used cooking oil