Karakterisasi Flavonoid Antioksidan Dari Daun Jambu Biji (Psidium guajava L.)

Harrizul Rivai, Lisa Putriani, Mahyuddin Mahyuddin

Sari


Flavonoid compounds have been isolated from guajava leaf from 100 grams of dried samples of guava leaf  were obtained liquid extract 130 mL, n-hexane fraction as much as 1.65 g, 1.95 g of chloroform fraction, fraction of 1.87 g ethyl acetate, butanol fraction of 2.15 g, and the remaining fraction as much as 28.96 g and flavonoid A as much as 36.9 mg. Flavonoid A is a yellow amorph form and decompose at a temperature of 190-192 C. Based on ultraviolet spectrum with various reagents shear and infrared spectrum, these compounds are known as flavonol-3-O-diglukosida. Flavonoids A provide antioxidant activity with the percent inhibition of 85.364% ± 0.2073%, while the flavonoid B 68.160%, ± 0.2073.

Kata Kunci


Flavonoid; Antioxidant; Guajava leaf

Teks Lengkap:

PDF (English)

Referensi


Harbone, J. B., T. J. Mabry and H, Mabry.,1975, The Flavonoid, Chapman and Hall, London.

Kartasapoetra, G., 1996, Budidaya Tanaman Berkhasiat Obat, PT. Rineka Citra, Jakarta.

Markham, K. R., 1988, Cara mengidentifikasi flavonoid, Penterjemah : Kosasih Padmawinata, Penerbit ITB, Bandung.

Raintree Data base : http://www.rain-tree.com/guava.htm, diakses 20 Maret 2010.

Sunarni, T., Pramono, S., Asmah, R., 2007, Flavonoid Atioksidan Penangkap Radikal dari Daun Kepel (Stelechocarpus burahol (BI.) Hook f. & Th., Majalah Farmasi Indonesia, 18 (3) : 111-116.

Thomas, A. N. S, 1993, Tanaman Obat Tradisional I, Kanisius, Yogyakarta.

Trilaksani, W., 2003,. Antioksidan : jenis, sumber, mekanisme kerja dan peran terhadap kesehatan, IPB, Bogor.

Widyawati, G., 2009, Khasiat Jambu Biji (Psidium guajava Linn.), Tesis, Program Studi Biosains Program Pasca Sarjana, Universitas Sebeles Maret, Surakarta.




DOI: http://dx.doi.org/10.52689/higea.v2i2.34

Refbacks

  • Saat ini tidak ada refbacks.


##submission.license.cc.by-nc-sa4.footer##

https://montes.da.upm.es/

https://csdmm.da.upm.es/

slot gacor hari ini