GAMBARAN STRUKTUR ANATOMIS DAN UJI AKTIVITAS ANTIOKSIDAN DAUN SERTA BATANG Hydroleaspinosa

Abstract

This studyaimed toobserve anatomicalstructure and antioxidant activities
ofleavesand stemsHydroleaspinosa. Anatomical tissues section of leaves and stems were
prepared using paraffin method and analysis of antioxidant activities was done by DPPH
method (1, 1–difenil–2–pikrilhidrazil). The results showed that the anatomical structure
ofHydroleaspinosaleavescross sectionconsistsofupperepidermis cells(adaksial)
andlowerepidermis cells(abaksial), trichomes, mesophyll that was differentiatedintoabove
palisadeparenchymaandbelow spongyparenchyma, vasculartissues, the strengthener
tissuesanddruscrystals. While on thecross sectionofthe stems wereepidermis, cortex,
vessels, and pith.There wasairspace between medium stemsand old stems. The results
ofanalytical measurements ofantioxidantactivities onethanolextract
ofHydroleaspinosaleaves with IC50value 52.735ppm are higher than thestems
withIC50value 68.911ppmbutstill lowerthan the controlof vitaminCandBHT.