PENENTUAN KADAR ASAM OKSALAT PADA BAYAM HIJAU (Amaranthus Gangeticus) dan BAYAM MERAH (Amaranthus Spinousus) MENGGUNAKAN METODE SPEKTROFOTOMETRI

PUSPITASARI, AGUSTIN (2019) PENENTUAN KADAR ASAM OKSALAT PADA BAYAM HIJAU (Amaranthus Gangeticus) dan BAYAM MERAH (Amaranthus Spinousus) MENGGUNAKAN METODE SPEKTROFOTOMETRI. Karya Tulis Ilmiah thesis, Universitas Setia Budi.

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Abstract

Spinach (Amaranthus sp.) is a plant that has a taproot root system with elliptic branches that spread out in all directions. Oxalic acid is a dicarboxylic acid which only consists of two C atoms in each molecule, so that the two carboxylic groups are side by side. Determination of oxalic acid levels is done by boiling green and red spinach then spinach leaves are drained for 20 minutes and weighed 2.5 grams and then mashed and added with aquabidest then in a centrifuge. 250 mL of spinach cooking water is weighed and centrifuged. Each sample was then placed into a 500 mL volumetric flask and analyzed spectrophotometrically The results of the analysis of oxalic acid levels in green spinach and red spinach were 52.2729 ppm on green spinach leaves at 0 hours; 62,5643 ppm when the leaves of green spinach are allowed to stand for 6 hours; 78,9687 ppm in green spinach water at 0 hours; 82.7573 ppm when the green spinach water is allowed to stand for 6 hours; 46,7323 ppm on red spinach leaves at 0 hours; 61,8247 ppm when the leaves of red spinach are allowed to stand for 6 hours; 61.8247 ppm in red spinach vegetable water at 0 hours and 122.66852 ppm when red spinach vegetable water was allowed to stand for 6 hours. Key words: boiled water, oxalic acid, green spinach, red spinach, spinach leaves

Item Type:	Thesis (Karya Tulis Ilmiah)
Uncontrolled Keywords:	boiled water, oxalic acid, green spinach, red spinach, spinach leaves
Subjects:	Q Science > QK Botany
Divisions:	Fakultas Teknik > Prodi D3 Analis Kimia
Depositing User:	Tifany Nur Arfiana
Date Deposited:	22 Nov 2019 03:31
Last Modified:	22 Nov 2019 03:33
URI:	http://repo.setiabudi.ac.id/id/eprint/3966

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