PENAMBAHAN PEGAGAN (Centella asiatica) DENGAN BERBAGAI KONSENTRASI DAN PENGARUHNYA TERHADAP SIFAT FISIKO-KIMIA COOKIES SAGU
Abstract
ABSTRACT
The objective of this research was to study antioxidant activity in pegagan sago cookies with various concentrations of pegagan powder. This research was conducted in two stages which was preliminary and main research. Preliminary research included making of pegagan powder, cookies formula, and organoleptic test. Primary research included formulation and making cookies with various concentrations of pegagan powder, physico-chemical properties observations, antioxidant activity and organoleptic test. The method used in this research was Complete Randomized Design with the factor was pegagan powder concentration. Pegagan powder concentration used in this research were 0%, 5.5%, 6.5%, and 7.5%. The determination of selected products made by considering the results of organoleptic test, antioxidant activity, and total amount of phenol. The selected cookies was the 7.5% cookies which had antioxidant activity as much as 15.2% and equivalent to 140 mg of vitamin C and 905.4 mg phenols in 100 g of cookies. The result of variance analysis showed that addition of pegagan with various concentrations did not significantly affect the antioxidant activity and total phenol of cookies (p<0.05).
Keywords: antioxidant, cookies, pegagan, sago, total phenol
ABSTRAK
Tujuan penelitian adalah mempelajari aktivitas antioksidan cookies sagu pegagan dengan berbagai konsentrasi serbuk pegagan. Penelitian dilakukan dalam dua tahapan, yaitu penelitian pendahuluan dan utama. Penelitian pendahuluan mencakup pembuatan serbuk pegagan, formula cookies dan uji organoleptik. Penelitian utama terdiri atas formulasi dan pembuatan cookies dengan berbagai konsentrasi serbuk pegagan, pengamatan sifat fisiko-kimia, aktivitas antioksidan, dan uji organoleptik. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan faktor konsentrasi serbuk pegagan pada pembuatan cookies dengan empat taraf yaitu 0%, 5,5%, 6,5%, dan 7,5%. Penentuan produk terpilih dilakukan dengan mempertimbangkan hasil uji organoleptik, aktivitas antioksidan, dan total fenol cookies. Cookies sagu pegagan yang terpilih adalah cookies 7,5% yang memiliki aktivitas antioksidan sebanyak 15,2% dan kekuatannya setara dengan 140 mg vitamin C/100 g cookies serta mengandung 905,4 mg total fenol dalam 100 g cookies. Hasil sidik ragam menunjukkan bahwa penambahan pegagan dengan berbagai konsentrasi tidak berpengaruh nyata terhadap aktivitas antioksidan dan total fenol cookies (p>0,05).
Kata kunci: antioksidan, cookies, pegagan, sagu, total fenol
Authors
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