Abstract
Seaweed is main commodity with abundant amount of Indonesian waters. Seaweed contains naturally bioactive compounds that acts as antioxidant and tyrosinase inhibitor which inhibit melanin formation and the latest approach used to skin lightening. The aim of this research were to determine chemical characterization such as heavy metal, secondary metabolite (phytochemical compounds), moisture, vitamin C and E, antioxidant activity and total plate count (TPC) on dry simplisia and slurry of S. plagyophyllum and E. cottonii. Total microbe of S. plagyophyllum amounted 2,3×102 colony⁄g with moisture content 16,71% and E. cottonii amounted 2,2×103 colony⁄g with moisture content 19,79%. Brown seaweed, S. plagyophyllum, did not contain dangerous heavy metal. Vitamin C value in both spesies of seaweed were 212,95 mg/kg for<br />S. plagyophyllum and 15,95 mg/kg for E. cottonii. Vitamin E of S. plagyophyllum amounted 363,86 mg/kg and 0,23 mg/kg for E. cottonii. IC50 value of S. plagyophyllum was 109 ppm and 130,62 ppm for E. cottonii. S. plagyophyllum slurry contain bioactive compound such as alkaloids, steroids, flavonoids, saponins and tannins. E. cottonii slurry contain bioactive compound alkaloids and terpenoids.<br /><br />
Highlights
BAHAN DAN METODE Bahan dan AlatBahan utama yang digunakan adalah rumput laut E. cottonii dan S. plagyophyllum yang didapatkan dari Serang (Banten).
Bahanbahan yang digunakan untuk analisis terdiri dari1,1-diphenyl-2-picrylhydrazyl (DPPH) (Sigma), asam askorbat (Merck), media plate count agar (PCA), asam sulfat (H2SO4) (Merck), pereaksi Dragendorff, pereaksi Meyer, dan pereaksi Wagner, kloroform (Merck), anhidrat asetat, asam sulfat, serbuk magnesium, amil alkohol, asam klorida (HCl) (Merck), larutan FeCl3, etanol (Merck).
Alat utama yang digunakan adalah spektrofotometer UV VIS tipe 1601 (Shimadzu), High Performance Liquid Chromatography, magnetic stirrer (Jenwey 1200), blender (Philips), sokhlet (IWAKI), vortex (Stuart SA8 Vortex Mixer, 230V, 50-60Hz, 20-2500rpm), timbangan analitik (Sartorius), timbangan digital (Tanita KD-160), oven (Memmert, Jerman), pH meter tipe 510 (Eutech Instrument, Singapura) dan alat-alat gelas (pyrex)
Summary
Bahan utama yang digunakan adalah rumput laut E. cottonii dan S. plagyophyllum yang didapatkan dari Serang (Banten). Bahanbahan yang digunakan untuk analisis terdiri dari1,1-diphenyl-2-picrylhydrazyl (DPPH) (Sigma), asam askorbat (Merck), media plate count agar (PCA), asam sulfat (H2SO4) (Merck), pereaksi Dragendorff, pereaksi Meyer, dan pereaksi Wagner, kloroform (Merck), anhidrat asetat, asam sulfat, serbuk magnesium, amil alkohol, asam klorida (HCl) (Merck), larutan FeCl3, etanol (Merck). Alat utama yang digunakan adalah spektrofotometer UV VIS tipe 1601 (Shimadzu), High Performance Liquid Chromatography, magnetic stirrer (Jenwey 1200), blender (Philips), sokhlet (IWAKI), vortex (Stuart SA8 Vortex Mixer, 230V, 50-60Hz, 20-2500rpm), timbangan analitik (Sartorius), timbangan digital (Tanita KD-160), oven (Memmert, Jerman), pH meter tipe 510 (Eutech Instrument, Singapura) dan alat-alat gelas (pyrex)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
